Series LB Standard Size Pushbuttons
D48
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
General Specifications
Electrical Capacity (Resistive Load)
Power Level (silver): 3A @ 125V AC or 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)
Note: Find additional explanation of operating range in Supplement section.
Other Ratings
Contact Resistance: 50 milliohms maximum for silver; 100 milliohms maximum for gold
Insulation Resistance: 200 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 for momentary circuit
200,000 operations minimum for maintained circuit
Electrical Life: 100,000 operations minimum
Nominal Operating Force: 4.41N
Contact Timing: Nonshorting (break-before-make)
Travel: Pretravel .059” (1.5mm); Overtravel .059” (1.5mm); Total Travel .118” (3.0mm)
Materials & Finishes
Housing: Glass fiber reinforced polyamide (UL94V-0)
Snap-in Frame: Stainless steel
Movable Contact: Silver alloy or copper with gold plating
Stationary Contacts: Silver alloy or copper with gold plating
Base: Liquid crystal polymer (UL94V-0)
Switch Terminals: Phosphor bronze with silver or gold plating
Lamp Terminals: Brass with silver plating
Environmental Data
Operating Temperature Range: –25°C through +50°C (–13°F through +122°F) for Illuminated
–25°C through +70°C (–13°F through +158°F) for Nonilluminated
Note: When used with a polyvinyl chloride splash cover, the lowest limit is 0°C (32°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: Not available for snap-in; see next section for panel seal.
Installation
Cap Installation Force: 3.92N maximum downward force on cap
Quick Connect Force: 52.95N maximum downward force on connector
Soldering Time & Temperature: Manual Soldering: See Profile A in Supplement section.
Standards & Certifications
Flammability Standards: UL94V-0 housing & base
UL: File No. E44145 - Recognized only when ordered with marking on switch.
Add “/U” or “/CUL” before first dash in part number to order UL recognized switch.
All models recognized at 3A @ 125V or 250V AC or 0.4VA @ 28V AC/DC maximum.
CSA: File No. 023535_0_000 - Certified only when ordered with marking on switch.
Add “/C” before first dash in part number to order CSA certified switch.
All models certified at 3A @ 125V or 250V AC or 0.4VA @ 28V AC/DC maximum.
Series LB
Standard Size Pushbuttons
D49
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
Distinctive Characteristics
Carefully designed light diffusion and filtering system produces bright,
full surface illumination with front panel relamping.
Spot illumination available in single and bicolor LEDs.
Choice of super bright LEDs in white, green, and blue
in addition to standard or bright red, amber, and
green LEDs.
Stainless steel clips provide secure mounting with a
wide range of panel thicknesses.
Latchdown feature gives indication of circuit status.
Audible and tactile feedback with smooth and
responsive operation.
Snap-action contact mechanism gives long electrical
life and sensitivity of actuation.
Combination solder lug and .110” quick connect
terminals are epoxy sealed to prevent entry of flux,
dust, and other contaminants.
Panel sealed model meets IP65 of IEC60529 specifications
(similar to NEMA 4 & 13).
Compact switch design minimizes behind panel depth.
Matching indicators available.
Actual Size
Snap-in Mount Page D48
Panel Seal Page D59
Series LB Standard Size Snap-in Pushbuttons
D50
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
Housing
KBlack
GGray
Shapes
SSquare
CRound
RRectangular
Poles
1SPDT
2DPDT
1 S K W01LB
Clear Cap with Red Diffuser
Red, 12-volt, Bright LED with Resistor
SPDT ON-(ON) Circuit
Silver Contacts
Rated 3A @ 125/250V AC;
Solder Lug/Quick Connect Terminals
Circuits
5ON (ON)
( ) = Momentary
6ON ON
Alternate Action
with Latchdown
Contacts & Terminals
W01
Silver Contacts
Rated 3A @ 125/250V AC
Solder Lug/Quick Connect Terminals
G01
Gold Contacts
Rated 0.4VA @ 28V AC/DC
Solder Lug/Quick Connect Terminals
5
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
LB15SKW01-5C12-JC
TYPICAL SWITCH ORDERING EXAMPLE
Square Shape
Black Housing
IMPORTANT:
Switches are supplied without UL, cULus and CSA marking unless specified.
UL, cULus & CSA recognized only when ordered with marking on the switch.
Specific models, ratings, and ordering instructions are noted on the General
Specifications page.
Series LB
Standard Size Snap-in Pushbuttons
D51
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
TYPICAL SWITCH ORDERING EXAMPLE
5C 12
Solid Cap: Lens/Filter Colors
BJ White/Clear
CJ Red/Clear
EJ Yellow/Clear
FJ Green/Clear
GJ Blue/Clear
Incandescent Lamp Used with Solid Cap
05 5-volt
12 12-volt
No
Code Nonilluminated
JC
LED Cap: Lens/Diffuser Colors
JB Clear/White
Super Bright LED Used with LED Cap
6B White
6F Green
6G Blue
LED Cap: Lens/Diffuser Colors
JB Clear/White
JC Clear/Red
JD Clear/Amber
JF Clear/Green
Bright LED Used with LED Cap
Colors Resistor
No Code No Resistor
05 5-volt
12 12-volt
24 24-volt
5C Red
5D Amber
5F Green
Incandescent or Neon Used with Insert Cap
01 110-volt Neon
05 5-volt Incandescent
12 12-volt Incandescent
No
Code Nonilluminated
Insert Cap: Lens/Filter Colors
JB Clear/White
JC Clear/Red
JE Clear/Yellow
*JF Clear/Green
*JG Clear/Blue
*JF & JG not suitable with neon.
LED in Spot Illuminated Cap
1C Red Single Color
1D Amber Single Color
1F Green Single Color
CF Red/Green Bicolor
Spot Illuminated Cap Colors
ABlack
BWhite
CRed
FGreen
Available in
Square and
Round only.
Lamps Cap Types & Colors
Nonilluminated
No
Code Nonilluminated
Nonilluminated Cap Colors
ABlack FGreen
BWhite GBlue
CRed HGray
EYellow
Series LB Standard Size Snap-in Pushbuttons
D52
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
Epoxy
Seal
(2.0)
.079 (2.8)
.110
(1.2)
.047
Thk = (0.5)
.020
(7.5)
.295
The electrical specifications shown are
determined at a basic temperature of
25°C. Lamp circuit is isolated and
requires external power source.
Recommended Resistors for Neon:
33K ohms for 110V AC;
100K ohms for 220V AC
*
Housing Colors Available:
SHAPES & PANEL CUTOUTS
CONTACT MATERIALS, RATINGS & TERMINALS
S.622” (15.8mm)
Square
Silver Contacts
Gold Contacts
W01
G01
R
* When in latchdown position for the alternate circuit, cap position is .039” (1.0mm) above the built-in bezel.
C.854” (21.7mm)
Round
.622” x .866” (15.8mm x 22.0mm)
Rectangular
HOUSING
K
Power Level
3A @ 125V AC & 250V AC
Logic Level
0.4VA max. @ 28V AC/DC max.
Solder Lug/Quick Connect
(16.2) Sq
.638
(22.0) Dia
.866
(11.5)
.453
(1.5) R
.059
(22.4)
.882
(16.2)
.638
Cutout for 1 switch:
.638” x .638” (16.2mm x 16.2mm)
Cutout for 1 switch with barriers:
.638” x .815” (16.2mm x 20.7mm)
Cutout for 1 switch:
.638” x .882” (16.2mm x 22.4mm)
Cutout for 1 switch with barriers:
.638” x 1.059” (16.2mm x 26.9mm)
Panel Thickness for Switches & Barriers: .039” ~ .157” (1.0 ~ 4.0mm)
Panel Thickness for Protective Guards & Splash Covers: .039” ~ .138” (1.0 ~ 3.5mm)
Black Gray
G
Complete explanation of operating range in Supplement section.
Plunger Position
( ) = Momentary Connected Terminals Throw & Switch/Lamp Schematics
Pole Model Normal Down Normal Down Notes: Switch is marked with NC, NO, COM, L+, L–.
Lamp circuit is isolated and requires an
external power source.
SP LB15
*LB16
ON
ON
(ON)
ON 1-3 1-2 SPDT
DP LB25
*LB26
ON
ON
(ON)
ON 1-3 4-6 1-2 4-5 DPDT
POLES & CIRCUITS
L (+) (-) L
L (+) (-) L
1
32
COM
NONC
4
6
1
32 5
COM COM
NC NCNO NO
Voltage V5V AC 12V AC 110V AC
Current I115mA 60mA 1.5mA
Endurance Hours 10,000 10,000
Ambient Temp. Range –25°C ~ +50°C
05 12
T-1 Bi-pin
AT607 & AT607N AT607 Incandescent 5-volt or
12-volt; AT607N Neon 110-volt
INCANDESCENT & NEON LAMP CODES & SPECIFICATIONS
01 *
Avg.
Optional PCB adaptors
AT711 & AT712 available;
illustrated in “Optional
Accessories” immediately following
“Typical Switch Dimensions.”
Series LB
Standard Size Snap-in Pushbuttons
D53
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
(+)
(-)
LED COLORS & SPECIFICATIONS
The electrical specifications shown are determined at a basic temperature of 25°C.
LED circuit is isolated and requires external power source. Polarity marks are on the switch.
If the source voltage exceeds the rated voltage, a ballast resistor is required.
The resistor value can be calculated by using the formula in the Supplement section.
Additional lamp detail is shown in the Accessories & Hardware section.
Color Codes Red Amber Green
Maximum Forward Current IFM 30mA 30mA 30mA
Typical Forward Current IF20mA 20mA 20mA
Forward Voltage VF1.9V 2.0V 2.1V
Maximum Reverse Voltage VRM 5V 5V 5V
Current Reduction Rate Above 25°C ∆IF0.42mA/°C
Ambient Temperature Range –25° ~ +50°C
5C 5D 5F No Code
Red Amber Green No Resistor
(+) (-)
T-11⁄2 Bi-pin
AT635
LEDs are colored
in OFF state.
Bright LED without Resistor
Color White Green Blue
Maximum Forward Current IFM 30mA 30mA 30mA
Typical Forward Current IF20mA 20mA 20mA
Forward Voltage VF3.3V 3.3V 3.3V
Maximum Reverse Voltage VRM 7V 7V 7V
Current Reduction Rate Above 25°C ∆IF0.40mA/°C 0.40mA/°C 0.40mA/°C
Ambient Temperature Range –25° ~ +50°C
6F 6G6B
AT625G Blue
AT631B White
AT632F Green
T-1 Bi-pin
Super Bright Single Element LED
(+) (-)
AT627
5-volt
4-element
with Resistor
AT627
12-volt
4-element
with Resistor
AT627
24-volt
4-element
with Resistor
(+)
(-)
(+
)
(-)
Resistor Codes
Color Codes:
Maximum Forward Current IFM — — —
Typical Forward Current IF52mA 26mA 13mA
Forward Voltage VF5V 12V 24V
Maximum Reverse Voltage VRM 4V 8V 16V
Current Reduction Rate Above 25°C ∆IF0.50mA/°C
Ambient Temperature Range –25° ~ +50°C
5C 5D 5F 12 2405
Red Amber Green
AT627
with Resistor
T-1 Bi-pin
Bright LED with Resistor
ATTENTION
ELECTROSTATIC
SENSITIVE DEVICES
No Code No Lamp
Series LB Standard Size Snap-in Pushbuttons
D54
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
CAP TYPES & COLOR COMBINATIONS
BJ
Solid Cap for Incandescent Lamp & Nonilluminated
Lens/Filter
Colors Available:
CJ
EJ
AT476
Square
JF and JG not suitable
with neon lamp.
FJ
GJ
Color Codes: B White C Red D Amber E Yellow F Green G Blue J Clear
Material: Polycarbonate Finish: Glossy
AT4012
Round AT4026
Rectangular
Material: Polycarbonate Finish: Glossy
AT477
Square AT4013
Round AT4027
Rectangular
Insert Cap for Incandescent or Neon Lamp & Nonilluminated
JB
JC
JE
JF
JG
Lens/Filter
Colors Available:
Translucent Colored Lens
Transparent Clear Filter
Lamp AT607
Transparent Clear Lens
Translucent Colored Filter
Lamp AT607 or 607N
(19.0) Dia
.748 (4.5)
.177
(5.5)
.217
(19.4)
.764
(13.2)
.520
(5.0)
.197
(6.0)
.236
(3.5)
.138
(6.5)
.256
(13.2) Sq
.520
(3.5)
.138
(6.5)
.256
(13.2) Sq
.520
(19.4)
.764
(13.2)
.520
(5.0)
.197
(6.0)
.236
(19.0) Dia
.748 (4.5)
.177
(5.5)
.217
Material: Polycarbonate Finish: Glossy
AT4176
Square AT4178
Round AT4177
Rectangular
Cap for Bright LED without Resistor
Lens/Diffuser
Colors Available:
Transparent Clear Lens
Translucent Colored Diffuser
Bright LED
AT635
Material: Polycarbonate Finish: Glossy
AT4162
Square AT4164
Round AT4163
Rectangular
Cap for Bright LED with Resistor
JB
JC
JD
JF
Lens/Diffuser
Colors Available:
Transparent Clear Lens
Translucent Colored Diffuser
JB
JC
JD
JF
(4.5)
.177
(5.5)
.217
(19.0) Dia
.748
(3.5)
.138
(6.5)
.256
(13.2) Sq
.520 (19.4)
.764
(13.2)
.520
(5.0)
.197
(6.0)
.236
(19.0) Dia
.748 (4.5)
.177
(5.5)
.217
Bright LED
AT627
(6.5)
.256
(3.5)
.138
(13.2) Sq
.520
(19.4)
.764
(13.2)
.520
(5.0)
.197
(6.0)
.236
Series LB
Standard Size Snap-in Pushbuttons
D55
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
CAP TYPES & COLOR COMBINATIONS
Cap for Super Bright LEDs
Clear Lens
White Diffuser
JB AT4129
Square
Material:
Polycarbonate
Finish: Glossy
LEDs AT625
AT631 AT632
The electrical specifications shown are determined at a basic temperature of 25°C. LED circuit is isolated and requires an external
power source. Single color LEDs are colored in OFF state; bicolor LEDs are translucent white in OFF state. Polarity marks are on the
switch. If the source voltage exceeds the rated voltage, a ballast resistor is required. The resistor value can be calculated by using the
formula in the Supplement section. Additional lamp detail is shown in the Accessories & Hardware section.
Spot Illuminated Cap with LED
Transparent
Clear Lens
Translucent
White Diffuser
AT4128
Round AT4130
Rectangular
(3.5)
.138
(6.5)
.256
(13.2) Sq
.520
(19.0) Dia
.748 (4.5)
.177
(5.5)
.217
(19.4)
.764
(13.2)
.520
(5.0)
.197
(6.0)
.236
AT480
Square AT4016
Round
A
B
C
F
Cap Colors
Available:
When ordering spot illuminated cap separately, LED color must be specified.
Examples: AT480CA (red LED, black cap); AT4016CFB (red/green bicolored LED, white cap)
Cap with Window
Factory Assembled LED;
Not Available Separately
Single Color Bicolor
Red Amber Green Red/Green
Maximum Forward Current IFM 25mA 30mA 25mA 30/25mA
Typical Forward Current IF20mA 20mA 20mA 20mA
Forward Voltage VF2.25V 2.1V 2.2V 2.0/2.2V
Maximum Reverse Voltage VRM 5V 5V 5V —
Current Reduction Rate Above 25°C ∆IF0.33mA/°C 0.40mA/°C 0.33mA/°C 0.43/0.38mA/°C
Ambient Temperature Range –25° ~ +70°C
1D 1F1C
LED Specifications
CF
LED factory
assembled in Spot
Illuminated Caps
Not Available
Separately
Single Color LED
with 1 Element
Bicolor LED
with 2 Elements
(+) (-)
(+) (-)
(4.0)
.157 (2.0)
.079
(5.0)
.197
(3.5)
.138
(6.5)
.256
(13.2) Sq
.520
(5.0)
.197
(2.0)
.079
(6.0)
.236
(19.0) Dia
.748 (4.5)
.177
(5.5)
.217
Material:
Polycarbonate
Finish: Glossy
A
B
E
F
Cap Colors
Available:
Cap for Nonilluminated
C G
H
AT484
Square AT4017
Round AT4030
Rectangular
Cap
No Lamp
(3.5)
.138
(6.5)
.256
(13.2) Sq
.520 (19.0) Dia
.748 (4.5)
.177
(5.5)
.217
(19.4)
.764
(13.2)
.520
(5.0)
.197
(6.0)
.236
Material: Polycarbonate Finish: Glossy
Color Codes: A Black B White C Red D Amber E Yellow F Green G Blue H Gray J Clear
Series LB Standard Size Snap-in Pushbuttons
D56
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
(15.8) Sq
.622
NC
NO
COM L
L(+)
(-)
(0.74)
Typ
.029
(5.08)
.200
NC
NO
COM
(5.08)
.200
(2.54) Typ
.100
(1.0) Dia Ty
p
.039
(0.3) Typ
.012
(2.54) Ty
p
.100
(0.5)
.020 (4.0)
.157
(15.0)
.591
TYPICAL SWITCH DIMENSIONS
Square Single & Double Pole
Rectangular Single & Double Pole
Round Single & Double Pole
LB15SKW01-12-CJ Single pole models do not have terminals 4, 5, & 6.
LB16CKW01-12-CJ Single pole models do not have terminals 4, 5, & 6.
LB26RGW01-12-CJ Single pole models do not have terminals 4, 5, & 6.
L(-)
L(+) 63
25
41
NC
NO
COM
(15.8) Sq
.622
(2.8) Typ
.110
(5.08) Typ
.200
(1.8)
.071
(3.2)
.126
(21.5)
.846 (7.5)
.295
(2.54) Typ
.100
(0.5) Typ
.020
(1.2) x (2.0) Typ
.047 x .079
(1.0)
.039
Latchdown Position
(13.2) Sq
.520
(17.8) Sq
.701
(19.0) Dia
.748
(23.7) Dia
.933
(1.2) x (2.0) Typ
.047 x .079
(0.5) Typ
.020
(2.54) Typ
.100
(7.5)
.295
(21.5)
.846
(3.2)
.126
(1.8)
.071
(1.0)
.039
Latchdown Position
(21.7) Dia
.854
L(+)
36
25
4
1
L(-)
NC
NO
COM
(15.8) Sq
.622
(2.8) Typ
.110
(5.08) Typ
.200
(17.8)
.701
(13.2)
.520
(19.4)
.764 (24.0)
.945
(3.2)
.126
(22.5)
.886
(7.5)
.295
(2.54) Typ
.100
(0.5) Typ
.020
(1.2) x (2.0) Typ
.047 x .079
(1.8)
.071
(1.0)
.039
Latchdown Position
36
L(+)
25
4
1
L(-)
NC
COM
(15.8)
.622
(22.0)
.866
(5.08) Typ
.200
(2.8) Ty
p
.110
NO
OPTIONAL ACCESSORIES
PCB Adaptors
AT711 Single Pole • Straight PC Terminals AT712 Double Pole • Straight PC Terminals
(0.3) Typ
.012
(2.54) Ty
p
.100
(0.5)
.020 (4.0)
.157
(15.0)
.591
NC
NO
COM L
L(+)
(-)
(15.8) Sq
.622
(0.74)
Typ
.029
(5.08)
.200
NC
NO
COM
Note: Order adaptors separately.
(5.08) Typ
.200
(2.54) Typ
.100
(1.0) Dia Ty
p
.039
Series LB
Standard Size Snap-in Pushbuttons
D57
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
OPTIONAL ACCESSORIES
Barriers
Protective Guard
AT497
End
Material: Polyamide
Material: Polyamide Protective Guards reduce depth of switch behind panel by .020” (0.5mm).
AT499
Square
Protective Guard
Opens 90°
Closes manually
AT498
Center Cutouts for More Than 1 Switch
Square
A = .752” (19.1mm) x Number of Switches + .051” (1.3mm)
Rectangular
A = .996” (25.3mm) x Number of Switches + .051” (1.3mm)
A
(16.2)
.638
(20.0)
.787
Center Position
End Position
(19.2)
.756
(1.19)
.047
(19.2)
.756
(23.5)
.925
(5.2)
.205
(4.3)
Typ
.169
(15.0)
.591
(1.19)
.047
(17.0)
.669
(20.0)
.787
(10.0)
.394
(21.0)
.827
(8.0)
.315
Cap Height
When
Assembled
(14.0) Sq
.551
(17.9) Sq
.705
(18.4)
.724 (20.4)
.803
(10.5)
.413
(20.5)
.807
(7.5)
.295
Cap Height
When
Assembled
180°
(17.9)
.705
(14.2)
.559
(17.9)
.705
(7.1)
.280
(20.4)
.803 (N)
(16.2) Sq
.638
(39.0) Min*
1.535
(N) = Number of switches
AT4171
(10.5)
.413
(20.5)
.807
(20.4)
.803
* Minimum dimension allows opening of cover to 180°
Spring Loaded Protective Guard
AT4171
Square
Protective Guard
Opens 180°
Closes automatically
Materials:
Cover: Clear Polycarbonate
Base: Black GFR Polyamide
Coil Spring: Stainless Steel
Recommended Panel Thickness:
.039” ~ .106” (1.0mm ~ 2.7mm)
Series LB Standard Size Snap-in Pushbuttons
D58
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
Opens 180°
Closes automatically
Materials:
Cover: Clear Polycarbonate
Base: Black GFR Polyamide
Coil Spring: Stainless Steel
Recommended Panel Thickness:
.039” ~ .106” (1.0mm ~ 2.7mm)
OPTIONAL ACCESSORIES
Protective Guard
AT4057
Rectangular
Protective Guard
Opens 90°
Closes manually
Spring Loaded Protective Guard
AT4172
Rectangular
Protective Guard
(26.6)
1.047 (N)
(16.2)
.638
(39.0) Min*
1.535
(N) = Number of switches
AT4172
(10.5)
.413
(20.5)
.807
(22.4)
.882
(26.6)
1.047
* Minimum dimension allows opening of cover to 180
°
(24.1)
.949
(20.4)
.803
(17.9)
.705
(7.1)
.280
180°
(7.5)
.295
Cap Height
When
Assembled
(24.6)
.969 (26.6)
1.047
(10.5)
.413
(20.5)
.807
(21.0) Dia
.827
Cap Height
When
Assembled
(7.3)
.287
(2.5)
.098
(21.8) Dia
.858 (30.0) Dia
1.181
(24.0) Sq
.945
(16.5)
.650
(16.5)
.650
(24.0)
.945
(22.7)
.894
(30.2)
1.189
Materials: PVC with polyethylene gasket; PVC loses pliability below 0°C (32°F). Dust Covers reduce depth of switch behind panel by .020” (0.5mm).
AT4002
Round
AT4001
Square
AT4011
Rectangular
Dust Covers
Material: Polyamide Protective Guards reduce depth of switch behind panel by .020” (0.5mm).
(26.0)
1.024
(10.0)
.394
(24.15)
.951
(21.0)
.827
(14.0)
.551
(8.0)
.315
Cap Height
When
Assembled
(15.0) Sq
.591
(2.5)
.098
(7.3)
.287
Cap Height
When
Assembled
Series LB
Standard Size Panel Seal Pushbuttons
D59
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
General Specifications
Electrical Capacity (Resistive Load)
Power Level (silver): 3A @ 125V AC or 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)
Note: Find additional explanation of operating range in Supplement section.
Other Ratings
Contact Resistance: 50 milliohms maximum for silver; 100 milliohms maximum for gold
Insulation Resistance: 200 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 for momentary circuit
200,000 operations minimum for maintained circuit
Electrical Life: 100,000 operations minimum
Nominal Operating Force: 5.39N
Contact Timing: Nonshorting (break-before-make)
Travel: Pretravel .059” (1.5mm); Overtravel .059” (1.5mm); Total Travel .118” (3.0mm)
Materials & Finishes
Housing: Glass fiber reinforced polyamide (UL94V-0)
O-ring: Nitrile butadiene rubber
Inner Seal: Silicone rubber
Movable Contact: Silver alloy or copper with gold plating
Stationary Contacts: Silver alloy or copper with gold plating
Base: Liquid crystal polymer (UL94V-0)
Switch Terminals: Phosphor bronze with silver or gold plating
Lamp Terminals: Brass with silver plating
Environmental Data
Operating Temperature Range: –25°C through +50°C (–13°F through +122°F) for Illuminated
–25°C through +70°C (–13°F through +158°F) for Nonilluminated
Note: When used with a polyvinyl chloride splash cover, the lowest limit is 0°C (32°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: IP65 of IEC60529 standard (similar to NEMA 4 & 13)
Installation
Mounting Torque: 1.96Nm (17.35 lb•in) maximum
Cap Installation Force: 3.92N maximum downward force on cap
Quick Connect Force: 52.95N maximum downward force on connector
Soldering Time & Temperature: Manual Soldering: See Profile A in Supplement section.
Standards & Certifications
Flammability Standards: UL94V-0 housing & base
UL: File No. E44145 - Recognized only when ordered with marking on switch.
Add “/U” or “/CUL” before first dash in part number to order UL recognized switch.
All models recognized at 3A @ 125V or 250V AC or 0.4VA @ 28V AC/DC maximum.
CSA: File No. 023535_0_000 - Certified only when ordered with marking on switch.
Add “/C” before first dash in part number to order CSA certified switch.
All models certified at 3A @ 125V or 250V AC or 0.4VA @ 28V AC/DC maximum.
Series LB Standard Size Panel Seal Pushbuttons
D60
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
Clear Cap with Red Diffuser
SPDT ON-ON Circuit
Silver Contacts
Rated 3A @ 125/250V AC;
Solder Lug/Quick Connect Terminals
Red, 12-volt, Bright LED with Resistor
Round Shape
Black Housing
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
LB16WKW01-5C12-JC
TYPICAL SWITCH ORDERING EXAMPLE
Housing
KBlack
GGray
Shape
WRound
Poles
1SPDT
2DPDT
1 W K W01LB
Circuits
5ON (ON)
( ) = Momentary
6ON ON
Alternate Action
with Latchdown
Contacts & Terminals
W01
Silver Contacts
Rated 3A @ 125/250V AC
Solder Lug/Quick Connect Terminals
G01
Gold Contacts
Rated 0.4VA @ 28V AC/DC
Solder Lug/Quick Connect Terminals
6
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 LB
Standard Size Panel Seal Pushbuttons
D61
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
TYPICAL SWITCH ORDERING EXAMPLE
5C 12
Solid Cap: Lens/Filter Colors
BJ White/Clear
CJ Red/Clear
EJ Yellow/Clear
FJ Green/Clear
GJ Blue/Clear
Incandescent Lamp Used with Solid Cap
05 5-volt
12 12-volt
No
Code Nonilluminated
JC
LED Cap: Lens/Diffuser Colors
JB Clear/White
Super Bright LED Used with LED Cap
6B White
6F Green
6G Blue
LED Cap: Lens/Diffuser Colors
JB Clear/White
JC Clear/Red
JD Clear/Amber
JF Clear/Green
Bright LED Used with LED Cap
Colors Resistor
No Code No Resistor
05 5-volt
12 12-volt
24 24-volt
5C Red
5D Amber
5F Green
Incandescent or Neon Used with Insert Cap
01 110-volt Neon
05 5-volt Incandescent
12 12-volt Incandescent
No
Code Nonilluminated
Insert Cap: Lens/Filter Colors
JB Clear/White
JC Clear/Red
JE Clear/Yellow
*JF Clear/Green
*JG Clear/Blue
*JF & JG not suitable with neon.
Lamps Cap Types & Colors
Series LB Standard Size Panel Seal Pushbuttons
D62
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
Housing Colors Available:
SHAPE & PANEL CUTOUT
CONTACT MATERIALS, RATINGS & TERMINALS
W.866” (22.0mm)
Round
Silver Contacts
Gold Contacts
W01
G01
HOUSING
K
Power Level
3A @ 125V AC & 250V AC
Logic Level
0.4VA max. @ 28V AC/DC max.
Solder Lug/Quick Connect
Recommended Panel Thickness:
.039” ~ .157” (1.0mm ~ 4.0mm)
Recommended Panel Thickness with Splash Cover:
.039” ~ .138” (1.0mm ~ 3.5mm)
Overtightening the mounting nut AT074
may damage the switch housing.
Black Gray
G
Epoxy
Seal
(2.0)
.079 (2.8)
.110
(1.2)
.047
Thk = (0.5)
.020
(7.5)
.295
Complete explanation of operating range in Supplement section.
Plunger Position
( ) = Momentary Connected Terminals Throw & Switch/Lamp Schematics
Pole Model
Normal Down Normal Down Notes: Switch is marked with NC, NO, COM, L+, L–.
Lamp circuit is isolated and requires
external power source.
SP LB15
*LB16
ON
ON
(ON)
ON 1-3 1-2 SPDT
DP LB25
*LB26
ON
ON
(ON)
ON 1-3 4-6 1-2 4-5 DPDT
* When in latchdown position for the alternate circuit, cap position is .039” (1.0mm) above the built-in bezel.
POLES & CIRCUITS
L (+) (-) L
L (+) (-) L
1
32
COM
NONC
4
6
1
32 5
COM COM
NC NCNO NO
The electrical specifications shown are
determined at a basic temperature of
25°C. Lamp circuit is isolated and
requires external power source.
Recommended Resistors for Neon:
33K ohms for 110V AC;
100K ohms for 220V AC
*
Voltage V5V AC 12V AC 110V AC
Current I115mA 60mA 1.5mA
Endurance Avg. Hours 10,000 10,000
Ambient Temp. Range –25°C ~ +50°C
05 12
T-1 Bi-pin
AT607 & AT607N AT607 Incandescent 5-volt or
12-volt; AT607N Neon 110-volt
INCANDESCENT & NEON LAMP CODES & SPECIFICATIONS
01 *
(22.0) Dia
.866
(1.7)
.067
(10.5)
.413
Optional PCB adaptors AT711
& AT712 available; illustrated
in previous snap-in subsection.
Series LB
Standard Size Panel Seal Pushbuttons
D63
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
(+) (-)
LED COLORS & SPECIFICATIONS
The electrical specifications shown are determined at a basic temperature of 25°C.
LED circuit is isolated and requires external power source. Polarity marks are on the switch.
If the source voltage exceeds the rated voltage, a ballast resistor is required.
The resistor value can be calculated by using the formula in the Supplement section.
Additional lamp detail is shown in the Accessories & Hardware section.
Color Codes Red Amber Green
Maximum Forward Current IFM 30mA 30mA 30mA
Typical Forward Current IF20mA 20mA 20mA
Forward Voltage VF1.9V 2.0V 2.1V
Maximum Reverse Voltage VRM 5V 5V 5V
Current Reduction Rate Above 25°C ∆IF0.42mA/°C
Ambient Temperature Range –25° ~ +50°C
5C 5D 5F No Code
Red Amber Green No Resistor
T-11⁄2 Bi-pin
AT635
LEDs are colored
in OFF state.
Bright LED without Resistor
Color White Green Blue
Maximum Forward Current IFM 30mA 30mA 30mA
Typical Forward Current IF20mA 20mA 20mA
Forward Voltage VF3.3V 3.3V 3.3V
Maximum Reverse Voltage VRM 7V 7V 7V
Current Reduction Rate Above 25°C ∆IF0.40mA/°C 0.40mA/°C 0.40mA/°C
Ambient Temperature Range –25° ~ +50°C
6F 6G6B
AT625G Blue
AT631B White
AT632F Green
T-1 Bi-pin
Super Bright Single Element LED
(+) (-)
AT627
5-volt
4-element
with Resistor
AT627
12-volt
4-element
with Resistor
AT627
24-volt
4-element
with Resistor
(+) (-)
(+
)
(-)
Resistor Codes
Color Codes:
Maximum Forward Current IFM — — —
Typical Forward Current IF52mA 26mA 13mA
Forward Voltage VF5V 12V 24V
Maximum Reverse Voltage VRM 4V 8V 16V
Current Reduction Rate Above 25°C ∆IF0.50mA/°C
Ambient Temperature Range –25° ~ +50°C
5C 5D 5F 12 2405
Red Amber Green
AT627
with Resistor
T-1 Bi-pin
Bright LED with Resistor
ATTENTION
ELECTROSTATIC
SENSITIVE DEVICES
(+) (-)
No Code No Lamp
Series LB Standard Size Panel Seal Pushbuttons
D64
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
(19.0) Dia
.748
(5.1)
.201
(19.0) Dia
.748
(5.1)
.201
(19.0) Dia
.748
(5.1)
.201
(19.0) Dia
.748
(5.1)
.201
CAP TYPES & COLOR COMBINATIONS
BJ
Solid Cap for Incandescent Lamp & Nonilluminated
Lens/Filter
Colors Available:
CJ
EJ
AT4054
JF and JG not suitable
with neon lamp.
FJ
GJ
Color Codes: B White C Red D Amber E Yellow F Green G Blue J Clear
Material: Polycarbonate Finish: Glossy
Material: Polycarbonate Finish: Glossy
AT4055
Insert Cap for Incandescent or Neon Lamp & Nonilluminated
JB
JC
JE
JF
JG
Lens/Filter
Colors Available:
Translucent
Colored Lens
Transparent
Clear Filter
Lamp
AT607
Transparent
Clear Lens
Translucent
Colored Filter
Lamp
AT607N
Material: Polycarbonate Finish: Glossy
AT4179
Cap for Bright LED without Resistor
Lens/Diffuser
Colors Available:
Transparent
Clear Lens
Translucent
Colored Diffuser
Bright LED
AT635
Material: Polycarbonate Finish: Glossy
AT4165
Cap for Bright LED with Resistor
JB
JC
JD
JF
Lens/Diffuser
Colors Available:
Transparent
Clear Lens
Translucent
Colored Diffuser
JB
JC
JD
JF
Bright LED
AT627
Lamp
AT607
Series LB
Standard Size Panel Seal Pushbuttons
D65
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
CAP TYPES & COLOR COMBINATIONS
Cap for Super Bright LEDs
Clear Lens
White Diffuser
JB
Material:
Polycarbonate
Finish: Glossy
LEDs
AT625
AT631
AT632
AT4131
Transparent
Clear Lens
Translucent
Colored Diffuser
OPTIONAL ACCESSORIES
AT9410 Splash Cover for Panel Seal
Materials:
Lid: PVC (loses pliability below 0°C/32°F)
Base: Polyethylene
O-ring: NBR
Recommended Panel Thickness:
.039” ~ .138” (1.0mm ~ 3.5mm)
TYPICAL SWITCH DIMENSIONS
Single & Double Pole Panel Seal
Single pole models do not have terminals 4, 5, & 6. LB25WKW01-12-JC
(19.0) Dia
.748
(25.0) Dia
.984
(21.5)
.846
(12.0)
.472
(5.5)
.217 M22 P1
(0.5) Typ
.020
(1.2) x (2.0) Typ
.047 x .079
(2.54) Typ
.100
(7.5)
.295
(3.2)
.126
(1.8)
.071
Latchdown Position
(1.0)
.039
L(+)
36
25
4
1
L(-)
(15.8) Sq
.622
NC
NO
COM
(2.8) Typ
.110
(5.08) Typ
.200
Keyway
Lid
Base
O-ring Supplied with
Panel Seal Switch
O-ring Supplied with
AT9410 Splash Cover
(10.6)
.417
(1.6)
.063
(23.0) Dia
.906
(7.8)
.307
(3.0)
.118
(21.0) Dia
.827
(31.3) Dia
1.232
(0.5)
.020
(22.0) Dia
.866
(31.3) Dia
1.232
(19.0) Dia
.748
(5.1)
.201
Series LB Standard Size Pushbuttons
D66
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
www.nkkswitches.com
Panel
Mounting Nut
Bezel
O-ring
LB-15SK
3A 125V AC
3A 250V AC
N .C .
N .C .
N .O .
5
C
LED
B
B
A
Rubber Seal
Projection
Notch
ASSEMBLY INSTRUCTIONS
Lamp Installation & LED Orientation
Switch & Cap Assembly
Installation & Maintenance
Align projections on lamp
with grooves (B) in holder
when inserting lamp. To
correctly join the lamp
holder and cap base,
match the cut corners (A).
Incandescent & Neon Lamps
AT607 & AT607N
Bright LED AT627
Panel Seal Models Snap-in Models
For panel seal models,
Bright LED must first be
inserted into the lamp
socket which is built into
the switch. The cap can
then be placed on the
switch.
For snap-in models,
Bright LED must be
inserted into the cap
first. Align cut corners
(C) when
inserting
the LED.
Bright & Super Bright LEDs
AT625, AT631, AT632,
AT635
Align D-flat on LED with flat (B) in
holder when inserting the LED.
To correctly join the lamp holder and
cap base, match the cut corners (A).
Round & Rectangular
Match clip on cap assembly with receptacle inside
switch. Lamp terminals will then be aligned correctly
with lamp socket.
Square
Match projection (C) on cap
assembly with groove (C)
inside switch. Lamp terminals
will then be aligned correctly
with lamp socket.
Panel Seal
With Lamps AT607, AT607N, and
LEDs AT614, AT625, AT631, AT632:
Match projection on cap assembly with
notch inside switch. Lamp terminals
will then be aligned correctly with lamp
socket.
Snap-in Mount
Snap-in clip holds all switches firmly
in place.
To mount round
switch, match
the antirotation
projection on
switch with
guide cut in
panel. Snap
into panel
cutout.
Panel Seal
Bushing Mount
Insert switch from the
front of the panel with
the o-ring between the
built-in bezel and the
panel. Install mounting
nut AT075 (supplied with
switch) from the rear of
the panel.
Overtightening mounting
nut may damage the
switch housing.
Lamp Replacement
Actuator must be in UP position.
Pull off cap with cap extractor
AT109.
Replace lamp and reassemble as
shown above.
AT109
Cap Extractor
AT112
Socket Wrench
Projection
Cut Corner
C
C
Projection
Panel
ATTENTION
ELECTROSTATIC
SENSITIVE DEVICES
A
B
LED
D Flat
Series LB
Standard Size Pushbuttons
D67
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries Pushbuttons
D
Illuminated PBSlides Programmable Toggles
Rockers
Touch Tilt
www.nkkswitches.com
LEGENDS
Suggested Printable Area for Lens
Shaded areas are printable areas.
Suggested Printable Area for Film Insert
Recommended Print Method: Laser Print or Screen Print with Epoxy based ink
Film Insert: Clear Polyester, 4 mil max. thickness
(17.8)
.701
(16.28)
.641
(0.76) Typ
.030
(10.08)
.397
(11.6)
.457
(0.76) Typ
.030
(11.6) Sq
.457
(10.08) Sq
.397
(0.76) Ty
p
.030
(13.2) Sq
.520
(11.68) Sq
.460
(0.76) Ty
p
.030
(19.0) Dia
.748
(17.48) Dia
.688
(0.76) Ty
p
.030
(19.4)
.764
(17.88)
.704
(0.76) Typ
.030
(13.2)
.520
(11.68)
.460
(0.76) Typ
.030
Lens
Film
Insert
Filter or
Dif
fuser
O N
ST
ART
Shaded areas are printable areas.
(17.4) Dia
.685
(15.88) Dia
.625
(0.76) Ty
p
.030
R = (0.6)
.024
(14.66)
.577
Recommended Methods: Laser Etch on clear lens, Screen Print, or Pad Print on lens.
Epoxy based ink is recommended.
NKK Switches can provide custom legends for caps. Contact factory for more information.
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
NKK Switches:
LB26RKW01-6G-JB LB25SKG01-5C24-JC LB25SKG01-5C24-JB LB16CKW01-6B-JB LB15CKG01-28-GJ
LB26RKW01-5D-JD LB26WKG01-5C-JB LB16RKW01-05-BJ LB25CKW01-05-EJ LB16RKW01-05-FJ LB16RKW01-
5C-JC LB15CKW01-12-EJ LB15CKW01-12-GJ LB26WGG01-5F-JF LB26WGG01-5F-JB LB26WGW01-5F-JF
LB25CKW01-05-BJ LB25CKW01-05-CJ LB25CKW01-05-FJ LB16RKW01-05-GJ LB16RKW01-05-CJ LB25CKW01-
05-GJ LB15CKW01-5C05-JB LB25WKG01-5F24-JB LB26RKW01-05-EJ LB26RKW01-05-CJ LB26RKW01-05-GJ
LB16SKW01-12-EJ LB16SKW01-12-FJ LB16SKW01-12-GJ LB26RKW01-05-FJ LB16SKW01-12-CJ LB26RKW01-
05-BJ LB15SKG01-5F-JB LB26SKW01-6B-JB LB25RKW01-5F-JF LB16RKW01-12-BJ LB16RKW01-12-GJ
LB16RKW01-12-EJ LB16RKW01-12-FJ LB16RKW01-12-CJ LB15WGG01-FJ LB26SKW01-5C12-JC LB15WGG01-
GJ LB15WGG01-EJ LB26WGW01-5D-JB LB26CKW01-05-FJ LB26WGG01-5D-JB LB26WGG01-5D-JD
LB26CKW01-05-BJ LB26WGW01-5D-JD LB16SKW01-5C-JC LB16WGW01-6G-JB LB16WGG01-6G-JB
LB15SKW01-5C-JC LB15RKW01-12-FJ LB15WGG01-6F-JB LB15RKW01-12-EJ LB16CKW01-05-EJ LB16WGG01-
5D-JD LB25WGW01-BJ LB25WGW01-FJ LB15RKW01-5F-JF LB16CKW01-05-CJ LB16CKW01-05-GJ
LB16WGG01-5D-JB LB16WGW01-5D-JD LB16WGW01-5D-JB LB16SKW01-05-EJ LB15RKW01-5D-JD
LB16SKW01-05-CJ LB16SKW01-05-GJ LB25RKW01-5D12-JB LB15CKW01-5F12-JF LB16RKW01-5D-JD
LB26SKW01-05-GJ LB26SKW01-05-EJ LB15WGG01-6G-JB LB26CKW01-5C-JC LB25SKW01-12-GJ LB25SKW01-
12-BJ LB25SKW01-12-EJ LB25SKW01-05-GJ LB25SKW01-05-BJ LB25SKW01-05-EJ LB25SKW01-05-CJ
LB25SKW01-05-FJ LB25WKG01-5F-JB LB26RKW01-12-GJ LB25WKG01-5D-JB LB16RKW01-05-EJ LB26RKW01-
12-CJ LB25WKG01-5D-JD LB25WKW01-5D-JB LB25WKW01-5F-JB LB26RKW01-5C-JC LB15SKW01-5D-JD
LB15CKW01-5F-JF LB25WKW01-5C-JB LB25WKG01-5C-JB
