Series MB2000 Miniature Pushbuttons
www.nkk.com
C72
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
Pushbuttons
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
General Specifications
Electrical Capacity (Resistive Load)
Power Level (silver): 6A @ 125V AC & 3A @ 250V AC or 3A @ 30V DC
Logic Level (gold): 0.4VA maximum @ 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
Logic/Power Level: Combines silver & gold ratings
(gold over silver)
Note: Find additional explanation dual rating & operating range in Supplement section.
Other Ratings
Contact Resistance: 10 milliohms maximum for silver; 20 milliohms maximum for gold
Insulation Resistance: 1,000 megohms minimum @ 500V DC
Dielectric Strength: 1,000V AC minimum between contacts for 1 minute minimum;
1,500V AC minimum between contacts & case for 1 minute minimum
Mechanical Life: 50,000 operations minimum for splashproof models; 100,000 for all other models
Electrical Life: 25,000 operations minimum for silver; 50,000 operations minimum for gold
50,000 operations minimum for silver at 3A @ 125V AC
Nominal Operating Force: Momentary Action: 1-pole 9.32N; 2-pole 16.18N; 4-pole 25.54N;
Alternate Action: 1-pole 4.41N; 2-pole 7.06N; 4-pole 11.77N
Contact Timing: Slow make, slow break
Plunger Travel: Screw-on Cap (Mom.) Screw-on Cap (Alt.) Snap-on Cap (Mom. & Alt.)
Pretravel: .028” (0.71mm) .110” (2.80mm) .125” (3.19mm)
Overtravel: .043” (1.09mm) .043” (1.10mm) .050” (1.26mm)
Total Travel .071” (1.80mm) .153” (3.90mm) .175” (4.45mm)
Materials & Finishes
Plunger: Brass w/nickel plating; polyacetal w/B1 bushing Bushing: Brass with nickel plating
Frame: Stainless steel Case: Diallyl phthalate resin (UL94V-0)
Movable Contactor: Phosphor bronze with silver or gold plating
Movable Contacts: Silver alloy (code W); copper with gold plating (code G); or silver alloy with gold plating (code A)
Stationary Contacts: Silver with silver plating (code W); copper or brass with gold plating (code G); or
silver with gold plating (code A)
Terminals: Copper or brass with silver plating; copper or brass with gold plating
Environmental Data
Operating Temp Range: –30°C through +85°C (–22°F through +185°F)
Humidity: 90 ~ 95% humidity for 96 hours @ 40°C (104°F)
Vibration: 10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range
& returning in 1 minute; 3 right angled directions for 2 hours
Shock: 50G (490m/s2) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
Sealing: B3 & D3 bushing options equivalent to IP67
Installation
Mounting Torque: 1.5Nm (13.0 lb•in) for double nut; .7Nm (6.0 lb•in) for single nut
Cap Installation Force: 80.0N (18.0 lbf) maximum downward force on actuator
Soldering Time & Temp: Wave Soldering (PC version): See Profile A in Supplement section.
Manual Soldering: See Profile A in Supplement section.
Process Seal: These devices are not process sealed. Hand clean locally using alcohol based solution.
Standards & Certifications
Flammability Standards: UL94V-0 case
UL: File No. E44145 - Recognized only when ordered with marking on switch.
Add “/U” or “/CUL” before dash in part number to order UL recognized switch.
All models recognized at 6A @ 125V AC or 3A @ 250V AC or 0.4VA max. @ 28V DC max.
CSA: File No. 023535_0_000 - Certified only when ordered with marking on switch.
Add “/C” before dash in part number to order CSA certified switch.
All models certified at 6A @ 125V AC or 3A @ 250V AC or 0.4VA max. @ 28V max.
Series MB2000
Miniature Pushbuttons
www.nkk.com C73
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
PushbuttonsIlluminated PBSlides Programmable Toggles
Rockers
Touch Tilt
Distinctive Characteristics
Guide interlocked with actuator block prevents window locking and
maintains correct plunger alignment to assure contact stability.
Employs an over-center actuator mechanism, which diminishes
sparking and increases operating life in AC circuits.
High torque bushing construction prevents rotation
or separation from frame during installation.
Splashproof option (D3 and B3 bushing codes) features an
o-ring within the bushing and one under the face nut
to protect from splashed, sprayed, or spilled liquids.
High insulating barriers, formed in the molded
diallyl phthalate case, increase isolation of circuits
in multipole devices.
Prominent external insulating barriers increase
insulation resistance and dielectric strength.
Epoxy sealed terminals prevent entry of solder
flux and other contaminants.
Clinching of the frame to the case well above the base
and terminals provides 1,500V dielectric strength.
Actual Size Bushing Mount Page C74
Bracket PC Mount Page C80
Large Bushing Page C87
Series MB2000 Bushing Mount Miniature Pushbuttons
www.nkk.com
C74
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
Pushbuttons
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
Cap Colors
ABlack
BWhite
CRed
EYellow
FGreen
GBlue
HGray
TYPICAL SWITCH ORDERING EXAMPLE
A2011 CMB
SPDT
ON-(ON) Circuit
Solder Lug Terminals
Poles & Circuits
2011 SPDT ON (ON)
2065 SPDT ON ON
2061 DPDT ON (ON)
2085 DPDT ON ON
2181 4PDT ON (ON)
2185 4PDT ON ON
( ) = Momentary
S
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
MB2011SS1W01-CA
Caps
B.315” (8.0mm) Diameter
C.394” (10.0mm) Diameter
Contact Materials
& Ratings
W
Silver
Rated 6A @ 125V AC
& 3A @ 250V AC
G
Gold
Rated 0.4VA max @
28V AC/DC max
A
Gold over Silver
Rated 6A @ 125V AC
& 0.4VA max @ 28V
AC/DC max
Plunger for Screw-on Caps
S1 W01
Plunger Types
SPlunger for Screw-on Caps
LPlunger for Snap-on Caps Bushings
S1 .335” (8.5mm)
Threaded with Keyway
S2 .335” (8.5mm)
Smooth with Keyway
S4 .335” (8.5mm) Metric
Threaded with Keyway
D1 .335” (8.5mm)
Threaded with D-Flat
D3
.335” (8.5mm)
Threaded Splashproof
without Keyway
Terminals
01 Solder Lug*
02 Quick Connect
03 .250” (6.35mm) Straight PC
05 .425” (10.8mm) Wirewrap
06 .750” (19.05mm) Wirewrap
07 .964” (24.5mm) Wirewrap
08 1.062” (27.0mm) Wirewrap
Black .394” (10.0mm)
Diameter Cap
Silver Contacts
with 6-Amp Rating
.335” (8.5mm) Threaded Bushing
with Keyway
* Wire harness & cable assemblies
offered only in Americas
IMPORTANT:
Switches are supplied without UL,
cULus & CSA marking unless specified.
UL, cULus & CSA recognized only when
ordered with marking on the switch.
Specific models, ratings, & ordering in-
structions are noted on General Specifi-
cations page.
Series MB2000
Bushing Mount Miniature Pushbuttons
www.nkk.com C75
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
PushbuttonsIlluminated PBSlides Programmable Toggles
Rockers
Touch Tilt
PLUNGER TYPES
On alternate action models, after transferring circuit, the plunger returns to its original position and does not latch down.
Plunger for Screw-on Caps
Momentary
Plunger Length
S
Plunger Position
( ) = Momentary Connected Terminals Throw & Switch Schematics
Pole Model
Normal Down Normal Down Note: Terminal numbers are
not actually on the switch.
SP
MB2011
MB2065
ON
ON
(ON)
ON
2-3 2-1 SPDT
DP
MB2061
MB2085
ON
ON
(ON)
ON
2-3 5-6 2-1 5-4 DPDT
4P
MB2181
MB2185
ON
ON
(ON)
ON
2-3 5-6
8-9 11-12
2-1 5-4
8-7 11-10
4PDT
POLES & CIRCUITS
Keyway Keyway
2 (COM)
1
3
4613
25
(COM)
11
10
127
9
4
6
13
258
(COM)
Momentary
Cap Location
Alternate
Plunger Length
Alternate
Cap Location
Plunger for Snap-on Caps
L
Momentary & Alternate
Plunger Length
Momentary & Alternate
Cap Location
(10.4)
.410
(3.0) Dia
.118
(2.9)
.114
(4.7)
.185
(2.9)
.114
(3.0)
.118 (2.3)
.091 (4.0)
.157
(3.6)
.142
Series MB2000 Bushing Mount Miniature Pushbuttons
www.nkk.com
C76
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
Pushbuttons
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
.335” (8.5mm)
Threaded with D Flat
.335” (8.5mm)
Smooth with Keyway
BUSHINGS
.335” (8.5mm)
Threaded with Keyway
S1 S2
D1 .335” (8.5mm)
Threaded Splashproof without Keyway
D3
.335” (8.5mm) Metric
Threaded with Keyway
S4
Maximum Panel Thickness with
Standard Hardware: .154” (3.9mm)
Maximum Panel Thickness with
Standard Hardware: .154” (3.9mm)
Maximum Panel Thickness with
Standard Hardware: .154” (3.9mm)
Maximum Panel Thickness with
Standard Hardware: .240” (6.1mm)
Note: This dual rated option is suitable when two or more identical switches are used in logic and in power circuits
within the same application. See Supplement section for complete explanation of dual rating and operating range.
W
Gold over Brass or Copper Logic Level 0.4VA maximum @ 28V AC/DC maximum
Silver over Silver Power Level 6A @ 125V AC & 3A @ 250V AC
Gold over Silver
G
A
CONTACT MATERIALS & RATINGS
Note: Complete explanation of operating range in Supplement section.
Power Level 6A @ 125V AC & 3A @ 250V AC
or Logic Level or 0.4VA maximum @ 28V AC/DC maximum
For S1, S2, or S4 Bushing
with
Keyway
For S1 or S4 Bushing
with
Optional Locking Ring
For D1 Bushing
with
D Flat
For D3 Bushing
without
Keyway
Standard hardware for bushings S1, S4, & D1 includes 2 hex nuts & 1 lockwasher; D3 bushing has 1 hex nut & 1 o-ring.
Standard & optional hardware are illustrated following the Typical Switch Dimension drawings.
(2.5)
.098
(9.0) Dia
.354
(0.8)
.031
(8.5)
.335
(3.5)
.138
1/4-40 Thd
(2.5)
.098
(9.0) Dia
.354
(0.8)
.031
(8.5)
.335
(3.5)
.138
(6.2) Dia
.244
(2.5)
.098
(9.0) Dia
.354
(0.8)
.031
(8.5)
.335
(3.5)
.138
M6P0.75
(9.0) Dia
.354 (2.5)
.098
(8.5)
.335
(3.5)
.138
1/4-40 Thd
(10.0) Dia
.394
(8.5)
.335
(3.5)
.138
1/4-40 Thd
(6.5) Dia
.256
(5.6)
.220
(0.6)
.024
(6.5) Dia
.256
(6.5)
.256
(2.2) Dia
.087
(5.8)
.228
(6.5) Dia
.256
(6.5) Dia
.256
Panel Cutouts
Series MB2000
Bushing Mount Miniature Pushbuttons
www.nkk.com C77
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
PushbuttonsIlluminated PBSlides Programmable Toggles
Rockers
Touch Tilt
TERMINALS
Solder Lug
01
.425” (10.8mm)
Wirewrap or Extended PC
05
.750” (19.05mm)
Wirewrap or Extended PC
06
.964” (24.5mm)
Wirewrap or Extended PC
07
If using as extended PC terminal, refer to the above footprints.
Dimension A = terminal lengths as shown beside the terminal
codes at the left.
.250” (6.35mm)
Straight PC
03
Single Pole Double Pole Four Pole
.062” (1.57mm) Wide
Quick Connect
02
(6.35)
.250
Epoxy Seal
Thk = (0.8)
.031
(1.57)
.062
Epoxy Seal (4.8)
.189
(6.35)
.250
(1.17)
.046
Thk = (0.8)
.031
Thk = (0.8)
.031
Epoxy Seal
A
(1.27)
.050
(4.7) Typ
.185
(1.8) Dia Typ
.073
1
2
3
(4.7) Typ
.185
(4.8)
.189
(1.8) Dia Typ
.073
1
2
36
5
4
(4.8) Typ
.189
(4.7) Typ
.185
(1.8) Dia Typ
.073
1
2
36
5
47
8
912
11
10
1.062” (27.0mm)
Wirewrap or Extended PC
08
CAPS & CAP COLORS
B
Cap Colors
Available: A B C
AT413
.315” (8.0mm) Diameter
Screw-on Cap
AT407
.394” (10.0mm) Diameter
Screw-on Cap
E F G H
C
Black White Red Yellow Green Blue Gray
(8.0) Dia
.315
(7.6)
.299
(8.0)
.315
(10.0) Dia
.394
For use with Plunger Code S
Cap Material: PBT
Finish: Glossy
AT443
.315” (8.0mm) Diameter
Snap-on Cap
For use with Plunger Code L
Cap Material: Polycarbonate
Finish: Glossy
AT442
.394” (10.0mm) Diameter
Snap-on Cap
For use with Plunger Code L
Cap Material: Polycarbonate
Finish: Glossy
For use with Plunger Code S
Cap Material: PBT
Finish: Glossy
(8.0) Dia
.315 M2.3 P0.4
(6.5)
.256
(8.0)
.315
M2.3 P0.4
(10.0) Dia
.394
Epoxy Seal
(2.0)
.079 (2.0)
.079
(4.0)
.157
(1.1)
.043
Thk = (0.8)
.031
Series MB2000 Bushing Mount Miniature Pushbuttons
www.nkk.com
C78
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
Pushbuttons
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
TYPICAL SWITCH DIMENSIONS
Solder Lug Single Pole
Solder Lug Double Pole
MB2011SS1W01-CA
MB2181SS1W01-CA
MB2061SS1W01-CA
Solder Lug Four Pole
Keyway
1/4-40 Thd (1.1) x (2.0) Typ
.043 x .079
(0.8) Typ
.031
(4.7) Typ
.185
(0.5)
.020
(4.5)
.177
(3.5)
.138
(2.3)
.091
(8.5)
.335
(8.0)
.315
(21.0)
.827
(10.0) Dia
.394
(7.9)
.311
(21.0)
.827
(8.5)
.335
(4.5)
.177
(2.3)
.091
(0.5)
.020
(8.0)
.315
(10.0) Dia
.394
Keyway
(0.8) Typ
.031
(4.7) Typ
.185
(1.1) x (2.0) Typ
.043 x .079
1/4-40 Thd
(3.5)
.138
COM
63
2
5
41
(13.0)
.512
(2.0) Typ
.079
(4.8)
.189
(21.0)
.827
(8.5)
.335
(3.5)
.138
(4.5)
.177
(2.3)
.091
(0.5)
.020
(8.0)
.315
(10.0) Dia
.394
Keyway
(0.8) Typ
.031
(4.7) Typ
.185
(1.1) x (2.0) Typ
.043 x .079
1/4-40 Thd
14710
11 85 2
12 963
(13.0)
.512
(2.0) Typ
.079
(4.8) Typ
.189
COM
(22.3)
.878
3
2
1
COM
(13.0)
.512
(2.0)
.079
(12.7)
.500
Series MB2000
Bushing Mount Miniature Pushbuttons
www.nkk.com C79
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
PushbuttonsIlluminated PBSlides Programmable Toggles
Rockers
Touch Tilt
HARDWARE
AT516
O-ring for
Splashproof Bushing
1 included with
each splashproof model
Material:
Nitrile butadiene rubber
AT509
Lockwasher
1 included with each switch
(not with splashproof models)
Material:
Steel with Zinc/Chromate
Optional Mounting Collars/Conical Nuts
AT4042H for Inch
AT4042M for Metric
Boot for Alternate
Material:
Silicone rubber
Dimension A = Cap Height
.091” (2.3mm) for Momentary with Plunger Code S
.157” (4.0mm) for Alternate with Plunger Code S
.142” (3.6mm) for Momentary & Alternate with Plunger Code L
AT507H for Inch
AT507M for Metric
Locking Ring
Material:
Steel with Zinc/Chromate
(8.0)
.315
M6 P0.75
(9.0)
.354
(1.5)
.059
(2.0)
.079
(5.5)
.217
(6.0) Dia
.236
(12.0) Dia
.472
(1.7)
.067
(0.8)
.031
(6.4) Dia
.252 (10.2) Dia
.402
(0.5)
.020
Standard Hardware Optional Hardware
AT4041H for Inch
AT4041M for Metric
Boot for Momentary
Material:
Silicone rubber
Optional Splashproof Boots for S Plunger
Operating Life 100,000
Boots for momentary devices
are accompanied by a threaded
adaptor which extends the length
of the plunger.
Operating Life 30,000
AT512CH for Inch
AT512CM for Metric
Conical nut
Used with .394” (10.0mm)
Diameter Cap (cap code C)
Material:
Brass with chrome plating
AT512H for Inch
AT512M for Metric
Conical Nut
Used with .315” (8.0mm)
Diameter Cap (cap code B)
Material:
Brass with chrome plating
M6 P0.75 or
1/4-40 Thd
M2.3 P0.4
AT513H for Inch
AT513M for Metric
Hexagon Nut
2 included with each switch
(1 with splashproof models)
Material:
Brass with Nickel plating
(9.63) Dia
.379
(6.07) Dia
.239
(10.0)
.394
(8.5)
.335
(13.0) Dia
.512
(10.5) Dia
.413
(4.0) Max
.157
A
A
(10.0)
.394
(10.0)
.394
(12.2) Dia
.480
(4.0) Max
.157
A
A
(14.0) Dia
.551 (10.8)
.425
(8.5)
.335
(10.0)
.394
(4.9) Dia
.193
(6.0) Dia
.236
(4.0) Max
.157
(3.5) Min
.138
(10.8)
.425
(8.5)
.335
(10.0)
.394
(4.9) Dia
.193
(6.0) Dia
.236
(4.0) Max
.157
(3.5) Min
.138
(1.78)
.070
