Series FB & SB Momentary Pushbuttons
C38
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
Pushbuttons
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
General Specifications
FB Series
Electrical Capacity (Resistive Load)
Power Level: 500mA @ 125V AC for silver
Logic Level: 0.4VA max. @ 28V AC/DC max. for gold
(Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
Note: Find additional explanation in
Supplement section.
Other Ratings
Contact Resistance: 30 milliohms maximum for silver;
30 milliohms maximum for gold
Insulation Resistance: 100 megohms minimum @ 500V DC
Dielectric Strength: 1,000V AC minimum between contacts &
between contacts & case for 1 minute minimum
Mechanical Life: 50,000 operations minimum
Electrical Life: 50,000 operations minimum
Nominal Operating Force: 2.16N
Travel: Pretravel .043” (1.1mm)
Overtravel .022” (0.57mm)
Total Travel .065” (1.67mm)
Materials & Finishes
Plunger: Polyacetal
Bushing: Brass with nickel plating
Case: Phenolic resin
Movable Contactor: Copper with silver or gold plating
Stationary Contacts: Phosphor bronze with silver or gold plating
Terminals: Phosphor bronze with silver or gold plating
Environmental & Installation Data
Operating Temp Range: –10°C through +70°C (+14°F through +158°F)
Soldering Time & Manual Soldering:
Temperature: See Profile A in Supplement section.
Standards & Certifications
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.
Models rated 0.5A @ 125V AC Single pole;
Momentary action circuit with solder lug
terminations.
CSA:
SB Series
3A @ 125V AC or 2A @ 250V AC or
2A @ 30V DC for silver
0.4VA max. @ 28V AC/DC max. for gold
(Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
Note: Find explanation of operating range in
Supplement section.
10 milliohms maximum for silver;
20 milliohms maximum for gold
200 megohms minimum @ 500V DC
1,000V AC minimum between contacts
& between contacts & case for 1 minute minimum
30,000 operations minimum
10,000 operations minimum
4.90N
Normally Open
Total Travel .088” (2.24mm)
Normally Closed
Total Travel .088” (2.24mm)
Black: Phenolic resin
Red: Urea formaldehyde resin
Brass with nickel plating
Phenolic resin
Copper with silver or gold plating
Copper with silver or gold plating
Copper with silver or gold plating
–10°C through +70°C (+14°F through +158°F)
Manual Soldering:
See Profile A in Supplement section.
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.
Models rated 3A @ 125V AC & 2A @ 250V AC.
Single pole: Momentary action circuit with solder lug
terminations.
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.
SB series rated 3A @ 125V AC & 2A @ 250V AC.
Single pole: Momentary action circuit with solder lug
terminations.
7/30/18
Series FB & SB
Momentary Pushbuttons
C39
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
PushbuttonsIlluminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
Distinctive Characteristics
Optional caps in different colors to vary appearance
as needed.
Low operating force for ease of actuation.
Rear panel bushing mount with compact
behind panel dimension.
Internal antijamming feature to protect the
contacts from damage due to excessive
force on the plunger.
Self-cleaning contacts make FB models highly
reliable.
Low cost device of rugged one-piece bushing
and housing construction.
Reliability of construction with an internal guide to
maintain contact alignment.
FB15ANEP and SB4011NO models have epoxy sealed
terminals.
Actual Size FB Actual Size SB
FB Bushing Mount Page C40
SB Bushing Mount Page C42
Series FB .5 Amp Momentary Pushbuttons
C40
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
Pushbuttons
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
IMPORTANT:
Switches are supplied without UL & cULus marking unless specified.
UL & cULus recognized only when ordered with marking on the switch.
Specific models, ratings, & ordering instructions are noted on the General
Specifications page.
Cap Colors
ABlack
BWhite
CRed
TYPICAL SWITCH ORDERING EXAMPLE
AEP FFB
SPST
OFF-(ON) Circuit
Silver Contacts &
500-Milliamp Rating
Pole & Circuit
15AN SPST OFF (ON)
( ) = Momentary
2
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
FB15ANEP2-FA
Caps
F.201” (5.1mm) Dia.
H.295” (7.5mm) Dia.
Contact Materials & Ratings
2Silver Contacts
500mA @ 125V AC
4Gold Contacts
0.4VA max. @ 28V AC/DC max.
.201” (5.1mm) Diameter
Black Cap
15AN
Terminals
EP Epoxy Sealed PC/Turret
PNo Epoxy PC/Turret
Epoxy Sealed
PC/Turret Terminals
Plunger Position
( ) = Momentary Connected Terminals Throw & Switch Schematics
Pole Model
Normal Down Normal Down
Note: Terminal numbers are
not actually on the switch.
SP FB15AN OFF (ON) OPEN 1-2 SPST
POLE & CIRCUIT
12
Series FB
.5 Amp Momentary Pushbuttons
C41
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
PushbuttonsIlluminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
CONTACT MATERIALS & RATINGS
Silver Contacts Power Level 500mA @ 125V AC
AT536 Hex Nut
Material:
Brass with nickel plating
4Gold Contacts Logic Level 0.4VA maximum @ 28V AC/DC maximum
No Epoxy
PC/Turret Terminals
Epoxy Sealed
PC/Turret Terminals
Material: Polyamide
Finish: Glossy
P
EP
TERMINALS
2
TYPICAL SWITCH DIMENSIONS
PC/Turret
Plunger is white polyacetal. FB15ANEP2-FA
SLIP-ON CAPS & COLORS
AT496
.295” (7.5mm) Diameter
AT475
.201” (5.1mm) Diameter H
Panel Thickness:
.110” (2.8mm) maximum
Material: Polyamide
Finish: Glossy
F
A B C
Black White Red
Colors Available:
STANDARD HARDWARE & PANEL CUTOUT
(5.1) Dia
.201
(7.0) Dia
.276
(4.0)
.157 M5 P0.5
(1.2)
.047
(5.0) Dia
.197
(2.7)
.106
(5.0)
.197
(5.9)
.232
(4.0)
.157
(11.8)
.465
(2.8) Dia
.110
(2.54)
.100
(0.15) Typ
.006
(5.1) Dia
.201
(4.0)
.157
(5.9)
.232
(7.5) Dia
.295
(4.0)
.157
(5.9)
.232
(7.0)
.276
M5 P0.5
(8.0)
.315
(1.2)
.047
.209
Complete explanation of operating range in Supplement section.
Series SB 3 Amp Momentary Pushbuttons
C42
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
Pushbuttons
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
TYPICAL SWITCH ORDERING EXAMPLE
Plunger Colors
No Code Black
CRed
MSB40
Metric Threaded Bushing
SPST OFF-(ON)
Normally Open Circuit
Pole & Circuits
Normally Open
* 11NO SPST OFF (ON)
Normally Closed
11NC SPST ON (OFF)
( ) = Momentary
*SB4011NO models have
epoxy sealed terminals
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
SB4011NOM
Slip-On Cap & Colors
No Code Without Cap
2A Black
2B White
2C Red
2E Yellow
2F Green
2G Blue
Standard Black Plunger
without Slip-on Cap
11NO
Bushings
MMetric Threaded M12 P1
HInch Threaded 15/32-32 NS
Silver Contacts with
3-Amp Rating
Plunger Position
( ) = Momentary Connected Terminals Throw & Switch Schematics
Pole Model
Normal Down Normal Down
Note: Terminal numbers are
not actually on the switch.
SP SB4011NO OFF (ON) OPEN 1-2 SPST
SB4011NC ON (OFF) 1-2 OPEN
POLE & CIRCUITS
12
NO NC
12
Contact Materials & Ratings
No
Code
Silver Contacts
3A @ 125V AC or 2A @ 250V AC
GGold Contacts
0.4VA max. @ 28V AC/DC max.
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 instructions are noted on the General
Specifications page.
Series SB
3 Amp Momentary Pushbuttons
C43
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
PushbuttonsIlluminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
SLIP-ON CAP & COLORS
SB4011NOM
SB4011NCM
2A
2B
2C
AT422
.394” (10.0mm) Diameter Cap
SB4011NOM
SB4011NCH
2E
2F
2G
Black
White
Red
Yellow
Green
Blue
TYPICAL SWITCH DIMENSIONS
Panel Thickness:
.157” (4.0mm)
Hardware provided:
1 AT504 Knurled Face Nut
1 AT508 Lockwasher
1 AT527M Hex Mounting Nut
Details in Hardware &
Accessories section.
SB4011NOH
SB4011NCH
Hardware provided:
2 AT503H Hex Mounting Nuts
1 AT508 Lockwasher
Details in Hardware &
Accessories section.
Panel Thickness:
.157” (4.0mm)
(12.0) Dia
.472
(12.0) Dia
.472
(12.0) Dia
.472
(12.0) Dia
.472
(10.0) Dia
.394
15/32-32 NS
(1.2) Dia
.047
(4.0)
.157
(10.4)
.410
(22.0)
.866
(6.3)
.248
(8.4) Dia
.331
(10.0) Dia
.394
M12 P1
(1.2) Dia
.047
(4.0)
.157
(9.0)
.354
(22.0)
.866
(6.3)
.248
(8.4) Dia
.331
(10.0) Dia
.394
15/32-32 NS
(1.2) Dia
.047
(5.0)
.197
(23.0)
.906
(6.3)
.248
(8.4) Dia
.331
(10.4)
.410
(10.0) Dia
.394
M12 P1
(1.2) Dia
.047
(5.0)
.197
(9.0)
.354
(23.0)
.906
(6.3)
.248
(8.4) Dia
.331
(7.3)
.287
(2.2) Ty
p
.086
(0.6) Typ
.024
(7.3)
.287
(2.2) Ty
p
.086
(0.6) Typ
.024
(12.5) Dia
.492
(12.5) Dia
.492
Inch Bushing
Metric Bushing
(8.8)
.346
(10.0) Dia
.394
(6.0)
.236
SLIP-ON CAP & COLORS
SB4011NOM
SB4011NCM
Material: Polyethylene
Finish: Matte
2A
2B
2C
AT422
.394” (10.0mm) Diameter Cap
SB4011NCH
2E
2F
2G
Black
White
Red
Yellow
Green
Blue
TYPICAL SWITCH DIMENSIONS
Panel Thickness:
.157” (4.0mm)
Hardware provided:
1 AT504 Knurled Face Nut
1 AT508 Lockwasher
1 AT527M Hex Mounting Nut
Details in Hardware &
Accessories section.
SB4011NOH
SB4011NCH
Hardware provided:
2 AT503H Hex Mounting Nuts
1 AT508 Lockwasher
Details in Hardware &
Accessories section.
Panel Thickness:
.157” (4.0mm)
(12.0) Dia
.472
(12.0) Dia
.472
(12.0) Dia
.472
(12.0) Dia
.472
(10.0) Dia
.394
15/32-32 NS
(1.2) Dia
.047
(4.0)
.157
(10.4)
.410
(22.0)
.866
(6.3)
.248
(8.4) Dia
.331
(10.0) Dia
.394
M12 P1
(1.2) Dia
.047
(4.0)
.157
(9.0)
.354
(22.0)
.866
(6.3)
.248
(8.4) Dia
.331
(10.0) Dia
.394
15/32-32 NS
(1.2) Dia
.047
(5.0)
.197
(23.0)
.906
(6.3)
.248
(8.4) Dia
.331
(10.4)
.410
(10.0) Dia
.394
M12 P1
(1.2) Dia
.047
(5.0)
.197
(9.0)
.354
(23.0)
.906
(6.3)
.248
(8.4) Dia
.331
(7.3)
.287
(2.2) Ty
p
.086
(0.6) Typ
.024
(7.3)
.287
(2.2) Ty
p
.086
(0.6) Typ
.024
(12.5) Dia
.492
(12.5) Dia
.492
Inch Bushing
Metric Bushing