Series SCB
Snap Switch Pushbuttons
C131
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
PushbuttonsIlluminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
Poles
1SPDT
2DPDT
TYPICAL SWITCH ORDERING EXAMPLE
Round Red Cap with
Black Shroud
DPDT
ON-(ON) Circuit
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
SCB25P15A-4CA
Colors
Caps Shrouds
ABlack A
BWhite B
CRed –
FGreen –
GBlue –
HGray H
Circuits
5ON (ON)
6ON ON
( ) = Momentary
Bushings
PPlastic (with
momentary only)
SSteel
2SCB P5 A 4 CA
Terminals
A.187” (4.75mm) Quick Connect
* B .250” (6.35mm) Quick Connect
Note: Contact factory for availability of
screw lug and solder lug models.
* Available in Americas only
Caps & Shrouds
For Momentary
3.520” (13.2mm) Diameter Cap
For Momentary & Alternate Action
4Round Cap & Shroud
(AT454 & AT455)
5Rectangular Cap & Shroud
(AT452 & AT453)
GENERAL SPECIFICATIONS
Electrical Capacity
Resistive Load: 15A & 1⁄2 HP @ 125 or 250V AC for high capacity models
Lamp Load: 5A @ 125V AC
Other Ratings
Contact Resistance: 15 milliohms maximum
Insulation Resistance: 100 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: 1,000,000 operations minimum
Electrical Life: 50,000 operations minimum
Travel: Pretravel .047” (1.19mm); Overtravel .040” (1.01mm); Differential .011” (0.27mm)
Operating Temp Range: –40°C through +85°C (–40°F through +185°F)
Materials & Finishes
Caps & Shrouds: Polycarbonate with glossy finish or PBT
Plunger: Polyacetal or brass with nickel plating
Bushing: Steel with zinc plating or glass fiber reinforced polyamide
Case: Polyester
Movable & Stationary Contacts: Silver alloy
Terminals: Brass with silver plating
Standards & Certifications
UL: Internal snap switch is UL recognized.
CSA: Internal snap switch is CSA certified.
15
Rating
15 15A
15A Rating
Plastic Bushing
.187” (4.75mm)
Quick Connect
Terminals
Note: Standard hardware is provided with caps. See Bushing detail for more information.
Series SCB Snap Switch Pushbuttons
C132
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
Pushbuttons
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
A
(10.0
)
.394
BUSHINGS
TERMINALS
Plastic
(for Momentary only)
.187” (4.75mm)
Quick Connect
P
AB
Steel
S
Maximum Effective Panel Thickness:
Momentary: .177” (4.5mm) without Shroud
.157” (4.0mm) with Shroud
Alternate Action: .354” (9.0mm)
Standard Hardware Provided with Caps
Cap Option 3: AT504M Knurled Face Nut, AT508 Lockwasher, AT527M Hex Mounting Nut
Cap Options 4 & 5: AT508 Lockwasher & AT527M Hex Mounting Nut
“A” =
11.2mm
Momentary
15.5mm
Alternate Action
Maximum Effective Panel Thickness:
.165” (4.2mm) without Shroud
.157” (4.0mm) with Shroud
.250” (6.35mm)
Quick Connect
(6.35)
.250
(4.06)
.160
(8.38)
.330
(10.54)
.415
Thk = (0.81)
.032
(4.75)
.187
(3.18)
.125
(10.16)
.400
(9.78)
.385
Thk = (0.5)
.020
(12.5) Dia
.492
(11.5)
.453
(1.5)
.060
(12.5) Dia
.492
(11.5)
.453
(1.5)
.060
Plunger Position
( ) = Momentary Connected Terminals Throw & Schematics
Pole Model
Normal Down Normal Down
Note: Terminal numbers are
actually on the switch.
SP SCB15
SCB16
ON
ON
(ON)
ON 1-2 1-3 SPDT
DP SCB25
SCB26
ON
ON
(ON)
ON 1-2 1-2 1-3 1-3 SP with
2 switches
POLES & CIRCUITS
1
3
2
1
3
2
1
3
2
Keyway
Keyway
Series SCB
Snap Switch Pushbuttons
C133
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
PushbuttonsIlluminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
(10.3)
.406
(22.23)
.875
(22.1)
.870
(7.85) Ma
x
.309
NO 3
NC 2
(0.5) Typ
.020
(5.84)
.230
(13.97)
.550
(1.02)
.040
COM
1
(21.2)
.835
(0.6)
.024
(12.0)
.472
(2.0)
.079
M12 P1
Shown with (4.0) Panel
.157
(24.0) Dia
.945
(17.7) Dia
.697
(11.2)
(21.6)
(10.3)
.406
M12 P1
NO 3NC 2
(0.5) Typ
.020
.230
(4.5)
.177
COM
1
(13.97)
.550
(22.23)
.875
(7.85) Ma
.309
(1.02)
.040
(14.2)
(11.0)
.433
Keyway
C
L
C
L
(14.0)
.551
(15.4)
.606
(21.0)
.827
(20.7)
.815
Keyway
(12.0)
.472
(2.0)
.079
(10.3)
.406
M12 P1
(0.81) Typ
.032
Shown with (4.0) Panel
.157
(26.2)
1.031
(19.4)
.764
(14.35)
.565
(8.08)
.318
(22.23)
.875
COM
1
(21.6)
.850
(7.85) Ma
x
.309
(48.1)
1.893
NC 2 NO 3 (1.02)
.040
TYPICAL SWITCH DIMENSIONS
.520” (13.2mm) Dia. Cap • .187” (4.75mm) Quick Connect
Rectangular Cap & Shroud • .250” (6.35mm) Quick Connect
SCB25P15A-4CA
SCB26S15B-5CA
Round Cap & Shroud • .187” (4.75mm) Quick Connect
SCB15S15A-3C
(28.0)
1.102
(10.16)
.400
(18.0)
.709
(4.75)
.187 (3.18)
.125
(28.83)
1.135
(10.16)
.400
(9.78)
.385
(4.75) Typ
.187
(28.83)
1.135
(3.18)
.125
(9.78)
.385 (10.16)
.400
(28.2)
1.110
(20.32)
.800
(27.0)
1.063
(6.35) Typ
.250
(28.83)
1.135
(20.32)
.800
(27.0)
1.063
(4.06)
.160
(8.38)
.330 (10.54)
.415
(28.4)
1.118
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
NKK Switches:
SCB15P15B-3G SCB15P15B-3H SCB15P15B-3F SCB15P15B-3C SCB15P15B-2H SCB15P15B-2F SCB15P15B-
2G SCB15P15B-2B SCB15P15B-2A SCB25P15A-1C SCB25P15A-1H SCB25P15A-1F SCB25P15A-3F
SCB25P15A-3G SCB25P15A-1G SCB25P15A-1B SCB25P15A-3B SCB25P15A-3H SCB25P15A-1A SCB25P15A-
2A SCB25P15A-3C SCB15P15A-2F SCB15P15A-2H SCB15P15A-2B SCB15P15A-2G SCB15P15A-2C
SCB25P15A-2F SCB25P15A-2H SCB25P15A-2B SCB25P15A-2C SCB25P15A-2G SCB25P15B-1F SCB25P15B-
1G SCB25P15B-1A SCB25P15B-1H SCB25P15B-1C SCB25P15B-1B SCB25S15B-5AH SCB25P15B-3F
SCB25P15B-2B SCB25P15B-3G SCB25P15B-2H SCB25P15B-3H SCB25P15B-2G SCB25P15B-2F SCB25P15B-
3A SCB25P15B-2A SCB25P15B-3B SCB15P15B-1G SCB15P15B-1F SCB15P15B-1C SCB15P15B-1B
SCB15P15B-1H SCB15P15B-1A SCB15P15A-3H SCB15P15A-3F SCB15P15A-1H SCB15P15A-1B SCB15P15A-
3G SCB15P15A-1C SCB15P15A-1G SCB15P15A-1F SCB15P15A-3B SCB26S15A-4AA SCB15P10A-1C
SCB15P10B-3A SCB15S10A-2A SCB15S15A-4AA SCB15S15A-4CA SCB15S15D-4CA SCB25P15A-4CA
SCB25S15B-1A SCB26S15B-4AA SCB16S15B-5BH SCB26S15B-4GA SCB15P15A-4CA SCB15P15B-5CA
SCB15S15B-1A SCB15S15B-4AA-RO SCB15P15A-5CA SCB15S15B-2A SCB25S15B-4CA SCB25S15C-3A
SCB15P15B-4GA SCB15S15A-2B SCB15S15B-3G SCB16S15B-4FH SCB25P15A-4FA SCB25S15A-4CA
SCB25S15B-2H SCB26S15A-4CA SCB26S15A-4FA SCB25P10B SCB15S15A-4FA SCB16S15B-5GA
SCB15P15A-4FH SCB26S15C-4AA SCB15P10D-3A SCB15P10A-4BB SCB25S10C-4AA