Datasheet
MICRO SWITCH Hazardous Area Switches
BX | BX2 Series
DESCRIPTION
The MICRO SWITCH BX/BX2 Series are designed for
applications in hazardous or explosive environments requiring
a rugged, durable switch virtually anywhere in the world. To
comply with explosion-proof switching requirements, the
flame path within the switch housing is designed to contain
and cool escaping hot gases and fumes that could cause
an explosion outside of the switch. Regardless of where the
equipment or machinery is designed, built, or installed, BX and
BX2 Series products carry global agency coverage.
Honeywell offers two versions of the BX series switch: the
standard BX Series features an aluminum housing, while
the BX2 series features a 316L stainless steel housing. The
stainless steel housing adds additional resistance against
corrosion in applications exposed to aggressive, caustic
agents, as well as those often present in chemical processing
plants, off-shore/near-shore sites, and other hazardous
areas. Both products are weather sealed for outdoor use and
designed for explosive gas/dust environments. All operating
heads of the BX/BX2 Series are field adjustable at 90°
increments.
DIFFERENTIATION
• Top-of-the-line environmental sealing combined with
Honeywell expertise for hazardous location package design
provides the right product for the right application
• Exclusive teller tab on levers ensures proper torque. When
the tab cannot be moved, the lever is tight enough to prevent
slippage
FEATURES
• Approvals: UL, CSA, ATEX (CE), IEC Ex, INMETRO (Brazil),
NEPSI Ex (China), KOSHA (select listings - Korea), and EAC
(formerly GOST-R, Russia)
• Sealed to IP67, NEMA 1, 3, 4, 6, 13
• Industry-leading breadth of products
• Two rugged designs are available: aluminum or corrosion-
resistant stainless steel head and body
• A diaphragm seal between head and body provides an extra
measure of protection
• Optional fluorocarbon seals are available for harsh chemical
or higher temperature environments
• Secure head-to-body retention with the head in any one of
four positions 90° apart
• Self-lifting pressure plate terminals saves wiring time.
• Wide variety of non-sparking actuators, switch options, and
head styles for design flexibility
• Rotary actuated heads are field adjustable for CW actuation,
CCW actuation, or both to reduce inventory
• Choice of silver or gold-plated contacts
APPLICATIONS
• Grain elevators
• Control valves and actuators
• Off-shore and on-shore drilling
• Pipelines
• Petrochemical and chemical plants
• Water treatment plants
• Paint booths
• Conveyors (above-ground)
• Pulp and paper
• Hazardous waste handling
VALUE TO CUSTOMERS
• Around-the-world use in hazardous areas with international
approvals: UL, CSA, ATEX (CE), IEC Ex, INMETRO, KOSHA,
NEPSI Ex (China), and EAC (formerly GOST-R, Russia)
• Industry-leading breadth of product offering that includes:
BX (aluminum housing) and BX2 (stainless steel housing)
limit switches for hazardous locations
• 303 stainless steel operating shaft on sintered bronze
bearing for enhanced mechanical life and operational
reliability
PORTFOLIO
Honeywell offers a wide range of limit switches in different size
packages and hazardous environments. These limit switches
include the BX/BX2 Series, CX Series, EX Series, LSX Series,
GXS Series, and 14CE100 Series. To view the entire product
portfolio, click here.
Sensing and Internet of Things
002306
Issue 8
2 sensing.honeywell.com
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
Figure 1. MICRO SWITCH BX Series Features and Options
The MICRO SWITCH BX2 limit switch has similar features, except a 316L stainless steel head and body without epoxy coating.
0.5 in, 0.75 in or 20 mm
conduit options
Sintered, bronze bearings
enable longer operating life
and increase resistance in
corrosive environments
Dual bearings deliver
enhanced mechanical life
Flurosilicone seals
extend operating temperature
down to -40 °C [-40 °F]
Two flame
paths: one in
the cover-housing
threads; another
between the switch
cavity and head
Boss-and-socket
head design for secure
head-to-body retention
Field adjustable operating head
(CW and CCW, CW or CCW)
matches switch to application
Rugged aluminum head and body
are phosphate treated
and epoxy coated
Twin shaft seals for an extra measure
of environmental protection
External ground screw for agency
compliance. Internal ground screw
provided on all products for
agency compliance
Sensing and Internet of Things 3
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
Figure 2. MICRO SWITCH BX Series Product Nomenclature
BX
Switch Type
BX Series
Aluminum
Hazardous
Area
Limit Switch
BX2 Series
Stainless
Steel
Hazardous
Area
Limit Switch
C
D
E
F
B
ASide rotary;
momentary
Top rotary;
momentary
Top pin plunger,
momentary
Top roller plunger,
momentary
Side pin plunger;
momentary
Side roller plunger;
momentary
HSide rotary, momentary;
low PT, low torque
J
K
Wobble stick
Cat whisker
LSide rotary;
sequential, momentary
MSide rotary;
central neutral,
momentary
Actuator
Options
F
Head Style*
3K
Body/Basic
Switch Code Actuator
Modification
N
P
Side rotary;
maintained
Side rotary, momentary;
low PT and DT
R
V
Side rotary, momentary;
low torque
Top pin plunger,
adjustable, momentary
WSide pin plunger,
adjustable, momentary
3E
3K
4K
1E
1A 3NC/1NO, slow acting,
3/4 -14 NPT
3NC/1NO, slow acting,
3/4 -14 NPT
gold-plated contacts
1NC/1NO, snap action,
1/2 -14 NPT
gold-plated contacts
1NC/1NO, snap action,
1/2 - 14 NPT
1NC/1NO, snap action,
3/4 - 14 NPT
4L
4M
2NC/2NO, snap action,
3/4 - 14 NPT
2NC/2NO, snap action,
sequential, 3/4 - 14 NPT
4N
4S
2NC/2NO, snap action,
center neutral,
3/4 - 14 NPT
2NC/2NO, snap action,
3/4 -14 NPT
gold-plated contacts
4T 2NC/2NO, snap action,
sequential, 3/4 -14 NPT,
gold-plated contacts
4U 2NC/2NO, snap action,
center neutral, 3/4 -14 NPT,
gold-plated contacts
7L
7N
2NC/2NO, snap action,
1/2 - 14 NPT
2NC/2NO, snap action,
center neutral,
1/2 - 14 NPT
7S
7T
2NC/2NO, snap action,
1/2 -14 NPT
gold-plated contacts
2NC/2NO, snap action,
sequential,1/2 -14 NPT,
gold-plated contacts
7U 2NC/2NO, snap action,
center neutral, 1/2 -14 NPT,
gold-plated contacts
1C
2A
2C
1A Fixed Ø 0.75 in x 0.25 in W
nylon roller, 1.5 in radius,
front mount
Fixed Ø 0.75 in x 0.25 in W
nylon roller, 1.5 in radius,
back mount
Adjustable, Ø 0.75 in x
0.25 in W nylon roller.
front mount
Adjustable, Ø 0.75 in x
0.25 in W nylon roller.
back mount
2J
2K
Adjustable, Ø 1.0 in x
0.5 in W nylon roller,
front mount
Adjustable, Ø 1.0 in x
0.5 in W nylon roller,
back mount
3
4
5
6
2
1CW rotation
CCW rotation
Right-oriented actuator
head assembly
Left-oriented actuator
head assembly
Head assembled with
actuator to
mounting surface
Roller perpendicular
to mounting surface
8Roller parallel to
mounting surface
4
½ or ¾ NPT**
20 mm
Conduit Threads
3S Yoke, Ø 0.75 in x
0.25 in W nylon rollers,
same side, back mount
4M
Hub rod,
aluminum
5A
5C
Offset, Ø 0.75 in x
0.25 in W nylon roller,
back mount
Offset, Ø 0.75 in x
0.25 in W nylon roller,
front mount
7A Plastic wobble
stick
8A Cat whisker,
5.5 in
–
** see Body/Basic
Switch Code column
NOTE: if 1/2 NPT or
3/4 NPT conduit is
desired, no code is
necessary. Leave-
blank.
If conduit code “4”
in this column is
selected, conduit in
Body/Basic Switch
column does not
apply.
∆
∆
∆
∆
∆
∆
∆ Not available with conduit code 4.
* BX2 stainless steel “head styles” and “actuators” available
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
To order fluorocarbon versions, insert the additional letter C in the appropriate places in the standard
catalog listing, as shown below:
BXA3K standard, side-rotary switch
BXAC3K completely FC-sealed version of BXA3K
4 sensing.honeywell.com
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
Table 1. Specifications
Characteristic Parameter
Product type MICRO SWITCH hazardous area limit switches
Actuators
Side pin plunger Side pin plunger - adjustable Side roller plunger
Side rotary Side rotary maintained Top pin plunger
Top pin plunger - adjustable Top roller plunger Top rotary
Wobble - cat whisker Wobble - plastic rod
Circuitry
1NC 1NO SPDT snap action, double break
2NC 2NO DPDT snap action, double break
2NC 2NO DPDT snap action, double break, sequential
2NC 2NO DPDT snap action, double break, center neutral
3NC 1NO slow action, double break
Electrical 10 A thermal
Single and double pole: AC15 A600; DC13 R300 (see table on page 5)
Housing material Aluminum (BX) or Stainless Steel (BX2)
Termination types
0.5 in - 14 NPT conduit
0.75 in - 14 NPT conduit
20 mm conduit
Housing type BX/BX2 non-plug-in
Sealing NEMA 1, 3, 4, 6, 13; IP67
Operating temperature* Standard with fluorosilicone seals: -40 °C to 70 °C [-40 °F to 158 °F]
Optional with fluorocarbon seals: -12 °C to 70 °C [10 °F to 158 °F]
ATEX/IEC Ex protection
class II 2 GD, Ex d IIC T6 Gb, Ex tb IIIC T85°C Db
UNSPSC code 302119
UNSPSC commodity 302119 Switches and controls and relays
* Reference operating head styles on page 6 for exceptions.
Table 2. Agency Certifications
ATEX (CE)2
Europe
CSA , UL, or
cULus3
Canada, USA
IEC Ex1
International
KOSHA
Korea
NEPSI EX2
China
INMETRO2
Brazil
EAC4
Russia
(formerly
GOST-R)
Conduit
BX Series
(aluminum)
M20 • • • • • •
NPT •••••••
BX2 Series
(stainless
steel)
M20 •••••••
NPT •••••••
1 ATEX & IEC Ex: II 2 GD; Ex d IIC T6 Gb; Ex tb IIIC T85°C Db; Ta -40 °C to 70 °C or -12 °C to 70 °C (dependent on seal material)
2 NEPSI Ex: GYJ111016
3 CSA, cUL, UL: NEMA 7 (Gas) Div 1&2, Class I, Groups B, C, & D; NEMA 9 (Dust) Div 1&2, Class II, Groups E, F, & G
4 Russia Custom Union Certification per НАНИО «ЦСВЭ» РОСС RU.0001.11ГБ05; 1Ex d IIC T6 Gb X, Ex tb IIIC T85°C Db
Sensing and Internet of Things 5
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
MICRO SWITCH BX and BX2 Series Electrical Ratings
10 A continuous carry; ac Volts; Pilot Duty: AC15, A600
Electri-
cal
Rating
Cir-
cuitry
Vac Amps at 0.35
Power Factor
Make
Amps at 0.35
Power Factor
Break
AC15,
A600
SPDT
DPDT
120 60 6
240 30 3
480 15 1.5
600 12 1.2
MICRO SWITCH BX and BX2 Series Electrical Ratings
dc Volts; Pilot Duty: DC13, R300
Electri-
cal
Rating
Cir-
cuitry
Vdc Make & Break
Amps
Inductive
Make & Break
Amps
Resistive
DC13,
R300
SPDT
DPDT
120 0.25 0.8
240 0.15 0.4
MICRO SWITCH BX and BX2 limit switches are capable of the
following low voltage dc loads
Circuitry Vdc Amps
Inductive
Amps
Resistive
SPDT, DPDT 24 10 10
Low Temperature Limits
For all MICRO SWITCH BX/BX2 styles, the upper temperature limit is 70 °C [158 °F], while the lower temperature limit is per the table below.
MICRO SWITCH BX/BX2
Standard (Fluorosilicone) Optional (Flurocarbon Sealed)
Operating Head Styles -40 °C [-40°F] -29 °C [-20 °F] -12 °C [10°F] -1 °C [30 °F]
BXA, BX2A - Side Rotary Momentary • •
BXB - Top Rotary • •
BXC, BX2C - Top Pin Plunger • •
BXD, BX2D - Top Roller Plunger • •
BXE, BX2E - Side Pin Plunger • •
BXF, BX2F - Side Roller Plunger • •
BXH, BX2H - Side Rotary, Low Pretravel and Torque • •
BXJ - Wobble Stick • •
BXK - Cat Whisker • •
BXL, BX2L - Side Rotary, Sequential Operation • •
BXM, BX2M - Side Rotary, Center Neutral • •
BXN, BX2N - Side Rotary, Maintained • •
BXP, BX2P - Side Rotary, Low Pretravel • •
BXR, BX2R - Side Rotary, Low Torque • •
BXV - Top Adjustable Plunger • •
BXW - Side Adjustable Plunger • •
Switch Contact Styles, Double Break
SPDT (1NC/1NO) DPDT (2NC/2NO)
SPDT
Double Break
DPDT
Double Break
Center Neutral (SPDT each direction)
Pole 1 operates CCW; Pole 2 operates CW
NOTE: Same polarity each pole
6 sensing.honeywell.com
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
Fluorocarbon Sealed Switches (optional)
MICRO SWITCH BX/BX2 Series Operating Heads*
SIDE ROTARY: Heads may be positioned in any one of four
positions, 90° increments. All are momentary action except
maintained head (BXN/BX2N Series).
BXA/BX2A - Standard: 60° minimum
overtravel, 15° maximum pretravel,
5° (single pole) and 7° (double pole)
maximum differential travel.
BXR/BX2R - Low operating torque: 60° minimum over-
travel, 15° maximum pretravel, 0.19 Nm [1.7 in lb] maximum
operating torque.
BXN/BX2N - Maintained contact: Maintained on counter-
clockwise rotation and reset on clockwise rotation, and vice
versa.
BXP/BX2P - Low differential: 68° minimum overtravel, 9°
maximum pretravel, 3° (single pole) and 4° (double pole)
maximum differential travel.
BXH/BX2H - Low torque, low differential travel: 68°
minimum overtravel. Features low operating torque and nar-
row differential travel.
BXL/BX2L - Sequential operation: 48° minimum overtrav-
el. Delayed action between operation of two poles.
BXM/BX2M - Center neutral: 57° minimum overtravel.
One pole operates on the clockwise rotation, and the other
pole on the counterclockwise rotation.
*BX Series epoxy-coated zinc heads are shown for illustration.
BX2 Series heads are 316L stainless steel.
TOP ROTARY: Available levers provide greater versatility.
Heads may be positioned in any one of four positions, 90°
increments. All are momentary action.
BXB: With 100° minimum overtravel.
Various levers that fit side rotary shafts
may be used on the top rotary shaft.
Switch is suitable when increased over-
travel is required.
TOP PLUNGERS: Available with 4,83 mm [0.19 in] minimum
overtravel. Top pin plungers are offered in pin plunger, an
adjustable plunger, and a roller plunger. All are momentary
action.
BXC/BX2C - Top pin plunger: A cop-
per alloy plunger for in-line actuating
motion. Oil-tight seals on plunger and
between the operating head and hous-
ing keep out coolant, dust, and chips.
BXD/BX2D - Top roller plunger: A
copper alloy roller plunger is adjustable
to 90° angles to accept cam or slide op-
eration from any of two directions. Boot
seal on the plunger.
BXV - Adjustable top pin plunger: A
copper alloy adjustable plunger pro-
vides easy application and saves on
installation time. The operating points
of the switch can be adjusted from 52,8
mm to 59,3 mm [2.085 in to 2.335 in].
Seals are the same as the pin plunger.
Fluorocarbon (FC)-sealed switches have an FC o-ring between
the threaded cover and body. Rotary types have an extra FC
seal on the operating shaft, while plunger versions have FC
boot seals. They are for use in applications where the environ-
ment includes fire-resistant synthetic fluids, synthetic fluids,
water-based fluids, and petroleum-based fluids. The additional
FC seals also promote longer operating life for rotary-actuated
BX/BX2 switches in applications where the temperatures are
normally elevated.
To order, insert the additional letter C in the appropriate
places in the standard catalog listing, as shown below:
BXA3K standard, side-rotary switch
BXAC3K FC-sealed version of BXA3K
BX2A3K standard, stainless steel side-rotary switch
BX2AC3K Fluorocarbon-sealed version of BX2A3K
Sensing and Internet of Things 7
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
SIDE PLUNGERS: Available with 4,83 mm [0.19 in] minimum overtravel. Side plungers are offered in pin plunger, adjustable pin
plunger, and a roller plunger. All are momentary action.
BXE/BX2E - Side pin plunger: A cop-
per alloy plunger for actuating motion
inline with the plunger travel. Actuat-
ing head may be rotated in any of four
positions, 90° apart. A boot seal on the
plunger and a gasket seal between the
head and housing keep out coolant,
dust, and chips.
MICRO SWITCH BX/BX2 Series Operating Heads
BXF/BX2F - Side roller plunger: A cop-
per alloy roller plunger fits close quar-
ters under cams and slides. The head
may be rotated in any of four positions,
90° apart. The roller can be turned verti-
cal or horizontal to the switch. Boot seal
on plunger.
BXW - Adjustable side pin plunger:
Has the same features of the side plain
plunger plus the means to adjust the
operating points of the switch from 41
mm to 47,4 mm [1.615 in to 1.865 in].
WOBBLE LEVER ACTUATING HEADS: Heads come with
either a Delrin® plastic rod or copper alloy cat whisker. Any
movement of the lever (except pull) will actuate the switch.
BXK - Plastic rod:
Recommended where
possible scratching or
marring by the actuator
is to be avoided.
BXJ - Cat whisker:
Copper alloy actuator
designed for low op-
erating force applica-
tions.
8 sensing.honeywell.com
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
BXA /BX2A • Standard
CW/CCW Momentary
Housing Material Contacts
(snap-action)
Contact Material Conduit Listing
1-2
3-4
3-4
1-2
75°
0° 10°
15°
Pretravel • 15° max.
Diff. travel (SPDT) • 5° max.
Diff travel (DPDT) • 7° max.
Overtravel • 60° min.
Oper. torque • 0,45 Nm [4 in-lb] max.
*Oper. temp • -40 °C to 70 °C [-40 °F to 158 °F]
75°0°
15°
8°
3-4/7-8
1-2/5-6
1-2/5-6
3-4/7-8
Aluminum 1NC-1NO Silver 0.5-14 NPT BXA3K
Aluminum 1NC-1NO Gold plate 0.5-14 NPT BXA3E
Aluminum 1NC-1NO Silver 0.75-14 NPT BXA4K
Aluminum 1NC-1NO Silver 20 mm BX4A3K
Aluminum 1NC-1NO Gold plate 20 mm BX4A3E
Stainless Steel 1NC-1NO Silver 0.5-14 NPT BX2A3K
Stainless Steel 1NC-1NO Silver 20 mm BX24A3K
Aluminum 2NC-2NO Silver 0.75-14 NPT BXA4L
Aluminum 2NC-2NO Silver 20 mm BX4A4L
Aluminum 2NC-2NO Gold plate 0.5-14 NPT BXA7S
Aluminum 2NC-2NO Gold plate 0.75-14 NPT BXA4S
Stainless Steel 2NC-2NO Silver 0.75-14 NPT BX2A4L
BXP /BX2P • Low Differential
CW/CCW Momentary
Housing Material Contacts
(snap-action)
Contact Material Conduit Listing
1-2
3-4
3-4
1-2
75°
0° 6°
9°
Pretravel • 9° max.
Diff. travel (SPDT) • 3° max.
Diff. travel (DPDT) • 4° max.
Overtravel • 66° min.
Oper. torque • 0,45 Nm [4 in-lb] max.
*Oper. temp • -40 °C to 70 °C [-40 °F to 158 °F]
75°0° 5°
9°
3-4/7-8
1-2/5-6
1-2/5-6
3-4/7-8
Aluminum 1NC-1NO Silver 0.5-14 NPT BXP3K
Aluminum 2NC-2NO Silver 0.75-14 NPT BXP4L
Stainless Steel 2NC-2NO Silver 0.75-14 NPT BX2P4L
Stainless Steel 2NC-2NO Silver 20 mm BX24P4L
Contact closed n; Contact open o
Actuating head is factory set for CW and CCW actuation. Easily field adjusted for CW or CCW per instructions included with switch.
NOTE: Same polarity each pole.
* Operating temperature range for standard fluorosilicone sealed switch. For optional fluorocarbon sealed switch, see temperature table, page 8. To order a fluorocar-
bon sealed version, insert the additional letter “C” in the standard catalog listing, as follows. The BXA3K limit switch is changed to a BXAC3K limit switch.
SIDE ROTARY • MICRO SWITCH BX/BX2 SERIES ORDER GUIDE/RECOMMENDED LISTINGS
Sensing and Internet of Things 9
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
BXR • Low Torque,
CW and CCW Momentary
Housing Material Contacts
(snap-action)
Contact Material Conduit Listing
1-2
3-4
3-4
1-2
75°
0° 10°
15°
Pretravel • 15° max.
Diff. travel (SPDT) • 5° max.
Diff. travel (DPDT) • 7° max.
Overtravel • 60° min.
Oper. torque • 0,19 Nm [1.7 in-lb] max.
*Oper. temp • -29 °C to 70 °C [-20 °F to 158 °F]
75°0°
15°
8°
3-4/7-8
1-2/5-6
1-2/5-6
3-4/7-8
Aluminum 1NC-1NO Silver 0.5-14 NPT BXR3K
Aluminum 1NC-1NO Gold plate 0.5-14 NPT BXR3E
Aluminum 2NC-2NO Silver 0.75-14 NPT BXR4L
Aluminum 2NC-2NO Gold plate 0.75-14 NPT BXR4S
BXH • Low Differential, Low Torque,
CW and CCW Momentary
Housing Material Contacts
(snap-action)
Contact Material Conduit Listing
1-2
3-4
3-4
1-2
75°
0° 6°
9°
Pretravel • 9° max.
Diff. travel (SPDT) • 3° max.
Diff. travel (DPDT) • 4° max.
Overtravel • 66° min.
Oper. torque • 0,19 Nm [1.7 in-lb] max.
*Oper. temp • -29 °C to 70 °C [-20 °F to 158 °F]
75°0° 5°
9°
3-4/7-8
1-2/5-6
1-2/5-6
3-4/7-8
Aluminum 2NC-2NO Silver 0.75-14 NPT BXH4L
BXB • Top Rotary,
CW and CCW Momentary
Housing Material Contacts
(snap-action)
Contact Material Conduit Listing
1-2
3-4
3-4
1-2
135°
0° 27°
35°
Pretravel • 35° max.
Diff. travel (SPDT) • 8° max.
Diff. travel (DPDT) • 12° max.
Overtravel • 100° min.
Oper. torque • 0,28 Nm [2.5 in-lb] max.
*Oper. temp • -29 °C to 70 °C [-20 °F to 158 °F]
135°0° 23°
35°
3-4/7-8
1-2/5-6
1-2/5-6
3-4/7-8
Aluminum 1NC-1NO Silver 0.5-14 NPT BXB3K
Contact closed n; Contact open o
Actuating head is factory set for CW and CCW actuation. Easily field adjusted for CW or CCW per instructions included with switch.
NOTE: Same polarity each pole.
* Operating temperature range for standard fluorosilicone sealed switch. For optional fluorocarbon sealed switch, see temperature table, page 8. To order a fluorocar-
bon sealed version, insert the additional letter “C” in the standard catalog listing, as follows. The BXA3K limit switch is changed to a BXAC3K limit switch.
SIDE ROTARY • MICRO SWITCH BX/BX2 SERIES ORDER GUIDE/RECOMMENDED LISTINGS
10 sensing.honeywell.com
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
BXN • Maintained, Two Position
CCW (trip), CW (Reset)
Housing Material Contacts
(snap-action)
Contact Material Conduit Listing
1-2
3-4
3-4
1-2
85°
0° 25°
65°
Pretravel • 65° max.
Diff. travel • 40° max.
Overtravel • 20° min.
Oper. torque • 0,45 Nm [4 in-lb] max.
*Oper. temp • -29 °C to 70 °C [-20 °F to 158 °F]
1-2/5-
6
3-4/7-
8
3-4/7-
8
1-2/5-
6
85°
0° 25°
65°
Aluminum 1NC-1NO Silver 0.5-14 NPT BXN3K
Aluminum 1NC-1NO Silver 20 mm BX4N3K
Aluminum 2NC-2NO Silver 0.75-14 NPT BXN4L
Aluminum 2NC-2NO Silver 20 mm BX4N4L
BXM • Center Neutral,
CW and CCW Momentary
Housing Material Contacts
(snap-action)
Contact Material Conduit Listing
Pretravel • 18° max.
Diff. travel • 10° max.
Overtravel • 57° min.
Oper. torque • 0,45 Nm [4 in-lb] max.
*Oper. temp • -40 °C to 70 °C [-40 °F to 158 °F]
CCW
1-2
3-4
0°
5-6
7-8
7-8
5-6
18°
3-4
1-2
CW
75°75°
75° 75°18°
0°
8°
8°
CCW CW
Aluminum 2NC-2NO Silver 0.75-14 NPT BXM4N
Aluminum 2NC-2NO Silver 20 mm BX4M4N
Contact closed n; Contact open o
NOTE: Same polarity each pole.
* Operating temperature range for standard fluorosilicone sealed switch. For optional fluorocarbon sealed switch, see temperature table, page 8. To order a fluorocar-
bon sealed version, insert the additional letter “C” in the standard catalog listing, as follows. The BXA3K limit switch is changed to a BXAC3K limit switch.
SIDE ROTARY • MICRO SWITCH BX/BX2 SERIES ORDER GUIDE/RECOMMENDED LISTINGS
Sensing and Internet of Things 11
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
Table 3. Common levers for use with MICRO SWITCH BX Rotary Switches*
Levers for use with side-rotary-actuated switches are available in a wide choice of sizes and materials. The most common listings
are shown below. Rollers may be on either side of the lever to best match the external actuating mechanism.
Fixed lever, nylon roller
LSZ51A - front mount roller
LSZ51C - back mount roller
Short fixed lever, nylon roller
LSZ59A - front mount roller
LSZ59C - back mount roller
Offset lever, nylon roller
LSZ55A - back mount roller
LSZ55C - front mount roller
One-way lever, nylon roller
LSZ60A - front mount roller
Yoke lever, nylon rollers
LSZ53A - front/back mount rollers
Adjustable lever,
nylon roller
LSZ52A - back mount
roller
LSZ52C - front mount
roller
LSZ52J
adjustable lever,
nylon roller
25,4 mm [1 in]
LSZ52K
adjustable lever,
nylon roller
38,1 [1.5 in]
LSZ54M
aluminum rod
140 mm [5.5 in]
LSZ61
loop
152 mm [6 in]
LSZ67CA**
Plastic conveyor roller
LSZ68
rod with spring
305 mm [12 in]
* Non-sparking rollers and actuators must be used in hazardous areas.
** May require orientation of switch and lever to enable gravity to help restore switch’s free position.
12 sensing.honeywell.com
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
Catalog
Listing
Material Roller Dia.
mm [in]
Roller
Width mm
[in]
Roller
Mounting
Fixed 38,1 [1.5] inch radius
LSZ51 Rollerless n/a n/a n/a
LSZ51A Nylon 19 [0.75] 6,35
[0.25] Front
LSZ51C Nylon 19 [0.75] 6,35
[0.25] Back
LSZ51F Nylon 25,4 [1.0] 12,7
[0.50] Front
LSZ51G Nylon 38,1 [1.5] 6,35
[0.25] Front
LSZ51J Nylon 25,4 [1.0] 12,7
[0.50] Back
LSZ51M Nylon 19 [0.75] 31,7
[1.25] Back
LSZ51P Nylon 19 [0.75] 12,7
[0.50] Front
LS2Z51A (sst) Nylon 19 [0.75] 6,35
[0.25] Front
LS2Z51C (sst) Nylon 19 [0.75] 6,35
[0.25] Back
LS2Z51E (sst) Copper alloy 19 [0.75] 6,35
[0.25] Front
LS2Z51F (sst) Copper alloy 19 [0.75] 6,35
[0.25] Back
Adjustable 38,1 [1.5] in to 3.5 in radius
LSZ52 Rollerless n/a n/a n/a
LSZ52A Nylon 19 [0.75] 6,35
[0.25] Back
LSZ52C Nylon 19 [0.75] 6,35
[0.25] Front
LSZ52E Nylon 19 [0.75] 33,0
[1.30] Front
LSZ52J Nylon 25,4 [1.0] 12,7
[0.50] Front
LSZ52K Nylon 38,1 [1.5] 6,35
[0.25] Front
LSZ52M Nylon 50,8 [2.0] 6,35
[0.25] Front
LSZ52N Nylon 19 [0.75] 12,7
[0.50] Front
LS2Z52A (sst) Nylon 19 [0.75] 6,35
[0.25] Front
LS2Z52C (sst) Nylon 19 [0.75] 6,35
[0.25] Back
LS2Z52E (sst) Copper alloy 19 [0.75] 6,35
[0.25] Front
LS2Z52F (sst) Copper alloy 19 [0.75] 6,35
[0.25] Back
Yoke – 38,1 [1.5] in radius
LSZ53A Nylon 19 [0.75] 6,35
[0.25] Front/Back
LSZ53E Nylon 19 [0.75] 6,35
[0.25] Back/Front
LSZ53M Nylon 19 [0.75] 31,7
[1.25] Back/Front
LSZ53S Nylon 19 [0.75] 6,35
[0.25] Back/Back
Rod
LSZ54 Hub only n/a n/a n/a
LSZ54M Alum, 140 mm
[5.5 in]
Ø 3,2
[Ø 0.125] n/a n/a
LSZ54N Stainless, 330
mm [13 in]
Ø 3,2
[Ø 0.125] n/a n/a
LSZ54P
Plastic rod,
305 mm
[12 in]
Ø6,85
[Ø 0.27] n/a n/a
LSZ54W
Plastic rod,
183 mm
[7.2 in]
Ø6,85
[Ø 0.27] n/a n/a
Table 4. BX/BX2 Series Lever Order Guide
Catalog
Listing
Material Roller Dia.
mm [in]
Roller
Width mm
[in]
Roller
Mounting
Offset – 38,1 [1.5] in radius
LSZ55 Rollerless n/a n/a n/a
LSZ55A Nylon 19 [0.75] 6,35
[0.25] Back
LSZ55C Nylon 19 [0.75] 6,35
[0.25] Front
LSZ55E Nylon 19 [0.75] 12,7
[0.50] Front
LSZ55K Nylon 38,1 [1.5] 6,35
[0.25] Front
Short fixed - 1.3 in radius
LSZ59A Nylon 19 [0.75] 6,35
[0.25] Front
LSZ59C Nylon 19 [0.75] 6,35
[0.25] Back
One-way roller lever
LSZ60A Nylon 19 [0.75] 6,35
[0.25] Front
Flexible loop
LSZ61 Ø 4,8 [Ø 0.19 ]
Nylatron 152 mm [6 in] flexible loop
LSZ618 Ø 4,8 [Ø 0.19 ]
Nylatron 241 mm [9.5 in] flexible loop
LSZ54 Hub only n/a n/a n/a
Spring rod
LSZ68 Delrin rod, 305
mm [12 in]
Ø 6,35
[0.25] n/a n/a
LSZ617 Delrin rod, 406
mm [16 in]
Ø 6,35
[0.25] n/a n/a
LSZ686 Delrin rod, 152
mm [6 in]
Ø 6,35
[0.25] n/a n/a
Rubber roller levers
LSZ51Y
38,1 [1.5] radius
(standard)
Rubber 50 [2.0] 12,7 [0.5] front
LSZ55Y
38,1 [1.5] radius
(offset)
Rubber 50 [2.0] 12,7 [0.5] front
LSZ52Y
38,1 to 89 [1.5
to 3.5] radius
(adjustable)
Rubber 50 [2.0] 12,7 [0.5] front
Plastic roller levers
LSZ67AA
(conveyor)* Plastic 38,1 [1.5] 96,5 [3.8] n/a
* May require orientation of switch and lever to enable gravity
to help restore switch to free position.
Sensing and Internet of Things 13
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
BXC /BX2C • Top Pin Plunger Housing Material Contacts
(snap-action)
Contact Material Conduit Listing
1-2
3-4
3-4
1-2
6,6 mm
[0.26 in]
1,4 mm
[0.055 in]
1,78 mm
[0.07 in]
0 in
Pretravel • 1,78 mm [0.07 in] max.
Diff. travel (SPDT) • 0,38 mm [0.015 in] max.
Diff travel (DPDT) • 0,51 mm [0.020 in] max.
Overtravel • 4,83 mm [0.190 in] min.
Oper. point • 58,5 ±0,76 mm [2.305 ±0.030 in]
Oper. force • 17,8 N [4 lb] max.
*Oper. temp • -40 °C to 70 °C [-40 °F to 158 °F]
6
8
8
6
6,6 mm
1,27 mm
[0.07 in]
0 in
Aluminum 1NC-1NO Silver 0.5-14 NPT BXC3K
Aluminum 1NC-1NO Silver 0.75-14 NPT BXC4K
Aluminum 1NC-1NO Silver 20 mm BX4C3K
Aluminum 1NC-1NO Gold plate 20mm BX4C3E
Aluminum 2NC-2NO Silver 0.75-14 NPT BXC4L
Aluminum 2NC-2NO Silver 20 mm BX4C4L
Aluminum 2NC-2NO Gold plate 20 mm BX4C4S
Stainless steel 2NC-2NO Silver 0.75-14 NPT BX2C4L
Stainless steel 2NC-2NO Silver 20 mm BX24C4L
BXD /BX2D • Top Roller Plunger
(can be rotated at 90° increments)
Housing Material Contacts
(snap-action)
Contact Material Conduit Listing
1-2
3-4
3-4
1-2
6,6 mm
[0.26 in]
1,4 mm
[0.055 in]
1,78 mm
[0.07 in]
0 in
Pretravel • 1,78 mm [0.07 in] max.
Diff. travel (SPDT) • 0,38 mm [0.015 in] max.
Diff travel (DPDT) • 0,51 mm [0.020 in] max.
Overtravel • 4,83 mm [0.190 in] min.
Oper. point • 68,6 ±1,02 mm [2.70 ±0.040 in]
Oper. force • 17,8 N [4 lb] max.
*Oper. temp • -40 °C to 70 °C [-40 °F to 158 °F]
6
8
8
6
6,6 mm
1,27 mm
[0.07 in]
0 in
Aluminum 1NC-1NO Silver 0.5-14 NPT BXD3K
Aluminum 1NC-1NO Silver 20 mm BX4D3K
Aluminum 1NC-1NO Gold plate 20 mm BX4D3E
Aluminum 2NC-2NO Silver 0.75-14 NPT BXD4L
Aluminum 2NC-2NO Silver 20 mm BX4D4L
Aluminum 2NC-2NO Gold plate 20 mm BX4D4S
Stainless steel 2NC-2NO Silver 0.75-14 NPT BX2D4L
Stainless steel 2NC-2NO Silver 20 mm BX24D4L
BXV • Top Adjustable Plunger Housing Material Contacts
(snap-action)
Contact Material Conduit Listing
Pretravel • 1,78 mm [0.07 in] max.
Diff. travel (SPDT) • 0,38 mm [0.015 in] max.
Diff travel (DPDT) • 0,51 mm [0.020 in] max.
Overtravel • 4,83 mm [0.190 in] min.
Oper. point • 65,66 [2.585] min; 72,01 [2.835] max.
Oper. force • 17,8 N [4 lb] max.
*Oper. temp • -40 °C to 70 °C [-40 °F to 158 °F]
1-2/5-
6
3-4/7-
8
3-4/7-
8
1-2/5-
6
6,6 mm
[0.26 in]
1,27 mm
[0.05 in]
1,78 mm
[0.07 in]
0 in
Aluminum 2NC-2NO Silver 0.75-14 NPT BXV4L
Contact closed n; Contact open o
NOTE: Same polarity each pole.
* Operating temperature range for standard fluorosilicone sealed switch. For optional fluorocarbon sealed switch, see temperature table, page 8. To order a fluorocar-
bon sealed version, insert the additional letter “C” in the standard catalog listing, as follows. The BXA3K limit switch is changed to a BXAC3K limit switch.
TOP PLUNGER • MICRO SWITCH BX/BX2 SERIES ORDER GUIDE/RECOMMENDED LISTINGS
All top plungers are momentary action.
14 sensing.honeywell.com
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
SIDE PLUNGER • MICRO SWITCH BX/BX2 SERIES ORDER GUIDE/RECOMMENDED LISTINGS
All side plungers are momentary action.
BXE /BX2E • Side Pin Plunger Housing Material Contacts
(snap-action)
Contact Material Conduit Listing
1-2
3-4
3-4
1-2
7,36 mm
[0.29 in]
1,4 mm
[0.055 in]
2,54 mm
[0.10 in]
0 in
Pretravel • 2,54 mm [0.10 in] max.
Diff. travel • 1,14 mm [0.045 in] max.
Overtravel • 4,83 mm [0.190 in] min.
Oper. point • 33,02 ±0,76 mm [1.30 ±0.030 in]
Oper. force • 26,79 N [6 lb] max.
*Oper. temp • -40 °C to 70 °C [-40 °F to 158 °F]
6
8
8
6
7,36 mm
1,4 mm
[0.10 in]
0 in
Aluminum 1NC-1NO Silver 0.5-14 NPT BXE3K
Aluminum 1NC-1NO Gold plate 0.5-14 NPT BXE3E
Stainless steel 1NC-1NO Silver 0.5-14 NPT BX2E3K
Stainless steel 1NC-1NO Gold plate 0.5-14 NPT BX2E3E
Aluminum 2NC-2NO Silver 0.75-14 NPT BXE4L
Aluminum 2NC-2NO Gold plate 0.75-14 NPT BXE4S
BXF /BX2F • Side Roller Plunger Housing Material Contacts
(snap-action)
Contact Material Conduit Listing
1-2
3-4
3-4
1-2
7,36 mm
[0.29 in]
1,4 mm
[0.055 in]
2,54 mm
[0.10 in]
0 in
Pretravel • 2,54 mm [0.10 in] max.
Diff. travel • 1,14 mm [0.045 in] max.
Overtravel • 4,83 mm [0.190 in] min.
Oper. point • 44,07 ±1,02 mm [1.735 in ±0.040]
Oper. force • 26,79 N [6 lb] max.
*Oper. temp • -40 °C to 70 °C [-40 °F to 158 °F]
6
8
8
6
7,36 mm
[0.29 in]
1,4 mm
[0.10 in]
0 in
Aluminum 1NC-1NO Silver 0.5-14 NPT BXF3K
Aluminum 1NC-1NO Gold plate 0.5-14 NPT BXF3E
Stainless steel 1NC-1NO Silver 0.5-14 NPT BX2F3K
Stainless steel 1NC-1NO Gold plate 0.5-14 NPT BX2F3E
Aluminum 2NC-2NO Silver 0.75-14 NPT BXF4L
Aluminum 2NC-2NO Gold plate 0.75-14 NPT BXF4S
Contact closed n; Contact open o
NOTE: Same polarity each pole.
* Operating temperature range for standard fluorosilicone sealed switch. For optional fluorocarbon sealed switch, see temperature table, page 8. To order a fluorocar-
bon sealed version, insert the additional letter “C” in the standard catalog listing, as follows. The BXA3K limit switch is changed to a BXAC3K limit switch.
Sensing and Internet of Things 15
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
WOBBLE • MICRO SWITCH BX/BX2 SERIES ORDER GUIDE/RECOMMENDED LISTINGS
BXJ • Wobble, Plastic Rod (7A Actuator) Housing
Material
Contacts
(snap-action)
Contact Material Conduit Listing
1-2
3-4
3-4
1-2
40°
0° 8°
12°
Actuator length • 152 mm [6 in]
Pretravel • 25,4 mm [1.0 in] max.
Oper. force • 2,8 N [10 oz] max.
*Oper. temp • -29 °C to 70 °C [-20 °F to 158 °F]
Aluminum 1NC-1NO Silver 0.5-14 NPT BXJ3K-7A
Aluminum 1NC-1NO Silver 20 mm BX4J3K-7A
Aluminum 1NC-1NO Gold plate 0.5-14 NPT BXJ3E-7A
Aluminum 2NC-2NO Silver 0.75-14 NPT BXJ4L-7A
Aluminum 2NC-2NO Silver 20 mm BX4J4L-7A
BXK • Wobble, Cat Whisker (8A Actuator) Housing
Material
Contacts
(snap-action)
Contact Material Conduit Listing
1-2
3-4
3-4
1-2
50°
0° 15°
25°
Actuator length • 152 mm [6 in]
Pretravel • 50,8 mm [2.0 in] max.
Oper. force • 1,4 N [5 oz] max.
*Oper. temp • -29 °C to 70 °C [-20 °F to 158 °F]
Aluminum 1NC-1NO Silver 0.5-14 NPT BXK3K-8A
Aluminum 1NC-1NO Gold plate 0.5-14 NPT BXK3E-8A
Aluminum 2NC-2NO Silver 0.75-14 NPT BXK4L-8A
Aluminum 2NC-2NO Silver 20 mm BX4K4L-8A
Contact closed n; Contact open o
NOTE: Same polarity each pole.
* Operating temperature range for standard fluorosilicone sealed switch. For optional fluorocarbon sealed switch, see temperature table, page 8. To order a fluorocar-
bon sealed version, insert the additional letter “C” in the standard catalog listing, as follows. The BXA3K limit switch is changed to a BXAC3K limit switch.
16 sensing.honeywell.com
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
REPLACEMENT CONTACT BLOCKS
Circuitry Replacement Contact Block
Single pole LSXZ3K
Double pole LSXZ3L
Sequence
or central
neutral
LSXZ3M
REPLACEMENT HEADS for STANDARD
BX Switches
Switch Type Catalog Listing/Operating Head Only
BXA LSZ1AB
BXB LSZ1BB
BXC LSXZ1CB
BXD LSXZ1DB
BXE LSXZ1EB
BXF LSXZ1FB
BXH LSZ1HB
BXJ LSZ1JBGA
BXK LSXZ1KBHA
BXL LSZ1LB
BXM LSZ1MB
BXP LSZ1PB
BXR LSZ1RB
BXV LSXZ1VB
BXW LSXZ1WB
ASSEMBLY MODIFICATIONS
Momentary action rotary switches can be furnished in other
than the normal assembled conditions. To specify modifica-
tions, add the numbers shown below to the catalog listings.
Modification number suffixes are:
1 Clockwise actuation only
2 Counterclockwise actuation only
3 Shaft to right of switch front
4 Shaft to left of switch front
5 Shaft to back of switch
For example,
Catalog listing BXA3K23 is a BXA3K switch adjusted for coun-
terclockwise actuation only. The operating shaft is to the right
side of the switch when viewing it from the front (label side).
No lever.
PLUNGER ASSEMBLY MODIFICATIONS
Add the following modification numbers to the catalog listing
in the plunger switch:
3 Side plunger to right of switch front
4 Side plunger to left of switch front
5 Side plunger to back of switch
6 Roller on top plungers perpendicular to mounting sur-
face
8 Roller on side plungers in vertical position
For example,
Catalog listing BXF3K3 is a BXF3K switch with the side roller
plunger to the right side.
Sensing and Internet of Things 17
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
Figure 3. MICRO SWITCH BX Series Side Rotary Product Dimensions • mm [in]
Side Rotary – Head Codes: A, H, L, M, N, P, Q, AND R
Figure 4. MICRO SWITCH BX Series Wobble Stick,
Head Code J • mm [in]
Figure 5. MICRO SWITCH BX SERIES Cat Whisker Wobble,
Head Code K • mm [in]
19.05
[0.75]
152,4
[6.00]
Ø6,35
[Ø0.25]
0,84
[21.3]
76,2
[3.00]
J HEAD
11,94
[0.047]
77,7
[3.06]
152,4
[6.0]
12,3
[0.845]
K HEAD
25,40
[1.00]
38,10
[1.50]
96,77
[3.81]
49,15
[1.94]
46,48
[1.83]
85,73
[3.375]
31,75
[1.25]
39,62
[1.56] 19,81
[0.78]
25,40
[1.00]
73,18
[2.88]
41,15
[1.62]
120,65
[4.75]
62,36
[2.46]
Ø76,20
[3.00]
146,05
[5.75]
51,85
[2.04]
2X Ø 5,16 /[0.203]
MTG. HOLES 2X 5/16 - 18 UNC - 2B
TAPPED FROM REAR
x 22,23 [0.875] min.
MTG.
P
ADS
18 sensing.honeywell.com
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
Figure 6. MICRO SWITCH BX Series Top Rotary,
Head Code B • mm [in]
Figure 7. MICRO SWITCH BX Series Top Pin Plunger,
Head Code C • mm [in]
Figure 8. MICRO SWITCH BX Series Top Roller Plunger,
Head Code D • mm [in]
Figure 9. MICRO SWITCH BX Series Side Plunger,
Head Code E • mm [in]
Figure 10. MICRO SWITCH BX Series Side Roller Plunger,
Head Code F • mm [in]
Figure 11. MICRO SWITCH BX Series Adjustable Top Pin
Plunger, Head Code V • mm [in]
Figure 12. MICRO SWITCH BX Series Adjustable Side Pin
Plunger, Head Code W • mm [in]
72,0 - 65,7
[2.835 MAX - 2.585 MIN]
OPERATING POINT
19,0
5
[.75]
21,6
[.85]
7,92
[3.12]
ACROSS
FLATS
V HEAD
31,8
[1.25]
19,0
5
[.75]
41,0 MIN - 47,4 MAX
[1.615 MIN - 1.865 MAX]
OPERATING POINT
0,85
[21.6
]
7,92
[3.12]
ACROSS
FLATS
W HEAD
69,9
[2.75]
19,05
[.75]
21,6
[.85]
7,32
[0.29]
55,1
[2.17]
B HEAD
MTG PADS
OPERA
TING
POINT
59,7
[2.35]
9,5
[0.373]
19,05
[0.75]
21,6
[0.85]
MTG PADS
C HEAD
OPERA
TING POINT
68.6
[2.700]
21,5
[0.845]
19,05
[.75]
4,7
[0.185] Ø12,7
[Ø 0.50]
D HEAD
MTG PADS
33.0
[1.30]
OPERATING POINT
9.47
[0.373]
31.75
[1.25]
19,05
[0.75]
21,5
[8.45]
E HEAD
MTG PADS
31,75
[1.25]
19,05
[0.75]
3,81
[0.15]
Ø12,7
[Ø0.50]
44.1
[1.735]
OPERATING POINT
21,6
[0.85]
F HEAD
Sensing and Internet of Things 19
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
Figure 13. MICRO SWITCH BX2 Series Side Rotary Product Dimensions • mm [in]
Side Rotary - Head Codes: A, P, AND R
25,40
[1.00]
38,10
[1.50]
96,77
[3.81]
46,48
[1.83]
85,73
[3.375]
31,75
[1.25]
39,62
[1.56] 19,81
[0.78]
41,15
[1.62]
120,65
[4.75]
52,32
[2.06]
Ø76,20
[3.00]
146,05
[5.75]
2X Ø 5,16 /[0.203]
MTG. HOLES 2X 5/16 - 18 UNC - 2B
TAPPED FROM REAR
x 22,23 [0.875] min.
61,72
[2.43]
19,05
[0.75]
49,15
[1.94]
24,89
[0.98]
72,90
[2.87]
Figure 14. MICRO SWITCH BX2 Series Top Plunger Product Dimensions • mm [in]
Top Plunger - Head Codes: C and D
20 sensing.honeywell.com
MICRO SWITCH Hazardous Area Switches, BX | BX2 Series
Figure 15. MICRO SWITCH BX2 Series Side Plunger Product Dimensions • mm [in]
Side Plunger – Head Codes: E and F
Warranty/Remedy
Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship during the appli-
cable warranty period. Honeywell’s standard product warranty
applies unless agreed to otherwise by Honeywell in writing;
please refer to your order acknowledgement or consult your
local sales office for specific warranty details. If warranted
goods are returned to Honeywell during the period of coverage,
Honeywell will repair or replace, at its option, without charge
those items that Honeywell, in its sole discretion, finds defec-
tive. The foregoing is buyer’s sole remedy and is in lieu of all
other warranties, expressed or implied, including those of
merchantability and fitness for a particular purpose. In no
event shall Honeywell be liable for consequential, special, or
indirect damages.
While Honeywell may provide application assistance personally,
through our literature and the Honeywell web site, it is buyer’s
sole responsibility to determine the suitability of the product in
the application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this writing.
However, Honeywell assumes no responsibility for its use.
002306-8-EN IL50 GLO 
August 2017
© 2017 Honeywell International Inc. All rights reserved.
m WARNING
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury.
Failure to comply with these instructions could result in
death or serious injury.
m WARNING
MISUSE OF DOCUMENTATION
• The information presented in this product sheet is for
reference only. Do not use this document as a product
installation guide.
• Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result in
death or serious injury.
Find out more
Honeywell serves its customers
through a worldwide network of
sales offices and distributors.
For application assistance, current
specifications, pricing or name of
the nearest Authorized Distribu-
tor, contact your local sales office.
To learn more about Honeywell’s
sensing and switching products,
call +1-815-235-6847 or
1-800-537-6945,
visit sensing.honeywell.com, or
e-mail inquiries to
info.sc@honeywell.com
Honeywell Sensing and Internet of Things
9680 Old Bailes Road
Fort Mill, SC 29707
honeywell.com
ADDITIONAL INFORMATION
The following associated literature is available on the Honeywell
web site at sensing.honeywell.com:
• Product installation instructions
• Product range guide
• Hazardous area product brochure
• Product application-specific information
– Application Note: Gas Recovery Unit and Other O&G Drilling
Applications
– Application Note: Pipeline Pig Passage Detection/Indicator
Applications
– Application Note: Electronic Sensors and
Electromechanical Switches in Valves and Flow Meters
– Application Note: Sensors and Switches Used in Valve
Actuators and Valve Positioners
– Application Note: Sensors and Switches for Industrial
Manual Process Valves
– Sensors and Switches in Oil Rig Applications
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Honeywell:
BX4A3K BX4C3K BX4D4L