Series MB2400
Toggles
Electrical Capacity (Resistive Load)
Slides
Rotaries
Keylocks
Programmable Illuminated PB
Pushbuttons
General Specifications
Rockers
Snap-Action Pushbuttons
C
Power Level (silver):
Logic Level (gold):
Logic/Power Level:
(gold over silver)
Other Ratings
Contact Resistance:
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Nominal Operating Force:
Travel
Materials & Finishes
Plunger:
Bushing:
Frame:
Case:
Base:
Movable Contactor:
Movable Contacts:
Stationary Contacts:
Terminals:
Supplement
Accessories
Indicators
Touch
Tilt
Tactiles
Environmental Data
Operating Temp Range:
Humidity:
Vibration:
Shock:
Installation
Mounting Torque:
Cap Installation Force:
Soldering:
Cleaning:
3A @ 125V AC
0.4VA maximum @ 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
Combines silver & gold ratings
Note: Find additional explanation of dual rating & operating range in Supplement section.
20 milliohms maximum for silver; 30 milliohms maximum for gold
1,000 megohms minimum @ 500V DC
1,000V AC minimum between contacts for 1 minute minimum;
1,500V AC minimum between contacts & case for 1 minute minimum
200,000 operations minimum
25,000 operations minimum for silver; 100,000 operations minimum for gold
Single pole 2.45N; double pole 3.92N
Pretravel .024” (0.6mm); Overtravel .016” (0.4mm); Total Travel .039” (1.0mm)
Brass with nickel plating
Brass with nickel plating
Stainless steel
Polybutylene terephthalate (PBT) (UL94V-0)
Diallyl phthalate resin (UL94V-0)
Phosphor bronze with silver or gold plating
Silver alloy (code W); copper with gold plating (code G); or silver alloy with gold plating (code A)
Silver alloy with silver plating (code W); copper or brass with gold plating (code G); or
silver with gold plating (code A)
Copper or brass with silver plating; copper or brass with gold plating
–30°C through +85°C (–22°F through +185°F)
90 ~ 95% humidity for 96 hours @ 40°C (104°F)
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
50G (490m/s2) acceleration (tested in 6 right angled directions, with 3 shocks in each direction)
1.5Nm (13.0 lb • in) for double nut; 0.7Nm (6.0 lb • in) for single nut
80.0N (18.0 lbf) maximum downward force on actuator
Wave Soldering (PC version): See Profile B in Supplement section.
Manual Soldering: See Profile B in Supplement section.
These devices are not process sealed. Hand clean locally using alcohol based solution.
See Cleaning Specifications in Supplement section.
Standards & Certifications
Flammability Standards: UL94V-0 case & base
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 single and double pole models recognized at 3A @ 125V 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.
Single pole models with PC, solder lug, or Wirewrap terminals & double pole with PC or
Wirewrap terminals certified at 3A @ 125V AC or 0.4VA @ 28V maximum.
C96
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Toggles
Series MB2400
Rockers
Distinctive Characteristics
Snap-acting mechanism gives smooth actuation, short stroke,
light touch, and audible feedback. This mechanism also provides
long mechanical life.
C
Programmable Illuminated PB
High torque bushing construction prevents rotation or separation
from frame during installation.
Pushbuttons
Snap-Action Pushbuttons
Antijamming design protects contacts from damage due to
excessive downward force on the actuator.
Keylocks
Compatible companions with M series toggles. Body,
bushing, and footprint dimensions ideal for mounting
MB2400 pushbuttons and M toggles next to one another.
Stainless steel frame resists corrosion.
Rotaries
Longer center solder lug terminal simplifies wiring and
soldering.
Slides
Silver contacts of specially composed alloy for hardness.
Tactiles
Epoxy sealed terminals prevent entry of solder flux and other
contaminants.
Tilt
Prominent external insulating barriers increase insulation resistance
and dielectric strength.
Page C98
Bracket PC Mount
Page C102
Snap-in Mount
Page C108
Accessories
Indicators
Touch
Bushing Mount
www.nkkswitches.com
C97
Supplement
Actual Size
Toggles
Series MB2400
TYPICAL SWITCH ORDERING EXAMPLE
Rockers
Pushbuttons
Programmable Illuminated PB
Keylocks
Rotaries
11
MB24
C
A2
Poles & Circuits
11
61
SPDT
DPDT
ON
ON
G
40
Contact Materials
& Ratings
(ON)
(ON)
Bushings
F
Caps
W
Silver
Rated 3A @ 125V AC
G
Gold
Rated 0.4VA max @
28V AC/DC max
A
Gold over Silver
Rated 3A @ 125V AC
& 0.4VA max @ 28V
AC/DC max
( ) = Momentary
F
.201” (5.1mm) Dia.
H
.295” (7.5mm) Dia.
Cap Colors
A
Black
B
White
C
Red
A2
.280” (7.1mm)
Smooth with Keyway
A1
.280” (7.1mm)
Threaded with Keyway
E2
.285” (7.24mm)
Smooth with D Flat
E1
.285” (7.24mm)
Threaded with D Flat
13
.250” (6.35mm) Straight PC with .465” (11.8mm) Bracket
.350” (8.9mm)
Smooth with Keyway
15
.425” (10.8mm) Straight PC with .630” (16.0mm) Bracket
S2
17
.964” (24.5mm) Straight PC with 1.150” (29.2mm) Bracket
S1
.350” (8.9mm)
Threaded with Keyway
Terminals
With Bracket
With Reinforced Bracket
Tactiles
Slides
Snap-Action Bracket PC Mount Pushbuttons
23
.250” (6.35mm) Straight PC with .465” (11.8mm) Bracket
25
.425” (10.8mm) Straight PC with .630” (16.0mm) Bracket
26
.750” (19.05mm) Straight PC with .953” (24.2mm) Bracket
30
Right Angle PC
40
Vertical PC
Tilt
With Terminal Support
IMPORTANT:
Indicators
Touch
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.
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
Accessories
MB2411A2G40-FA
SPDT
ON-(ON) Circuit
Supplement
.280” (7.1mm) Smooth Bushing
with Keyway
Black .201” (5.1mm)
Diameter Cap
C102
Vertical PC Terminals
Gold Contacts with
0.4VA Rating
www.nkkswitches.com
A
Series MB2400
Toggles
Snap-Action Bracket PC Mount Pushbuttons
POLES & CIRCUITS
Down
Note: Terminal numbers are not actually
on the switch.
Pole
Model
SP
MB2411
ON
(ON)
1-3
1-2
SPDT
DP
MB2461
ON
(ON)
1-3 4-6
1-2 4-5
DPDT
Keyway
Keyway
C
1 (COM)
2
3
2
Programmable Illuminated PB
3
1 (COM)
4
5
6
BUSHINGS
(0.8)
.031
(8.0) Dia
.315
(0.9)
.035
.280” (7.1mm)
Threaded with Keyway
(5.54) (7.24)
.218 .285
E1
(8.0) Dia
.315
Maximum Panel Thickness with
Standard Hardware: .068” (1.74mm)
Rotaries
(2.5)
.098
(0.9)
.035
Maximum Panel Thickness with
Standard Hardware: .068” (1.74mm)
(0.9)
.035
1/4-40 Thd
(2.84) Dia
.112
(8.0) Dia
.315
(5.54) (7.24)
.218 .285
(8.9)
.350
.350” (8.9mm)
Threaded with Keyway
(0.8)
.031
(2.5)
.098
(0.9)
.035
(5.54)
.218
S1
1/4-40 Thd
(2.84) Dia
.112
(2.5)
.098
(2.5)
.098
(0.9)
.035
.285” (7.24mm)
Threaded with D Flat
1/4-40 Thd
(2.84) Dia
.112
(5.54) (7.1)
.218 .280
(8.0) Dia
.315
(2.5)
.098
Tactiles
(5.54) (7.1)
.218 .280
(6.2) Dia
.244
(2.84) Dia
.112
(0.8)
.031
Tilt
(8.0) Dia
.315
.350” (8.9mm)
Smooth with Keyway
S2
(6.2) Dia
.244
(2.84) Dia
.112
(2.5)
.098
A1
.285” (7.24mm)
Smooth with D Flat
(6.2) Dia
.244
(2.84) Dia
.112
(0.8)
.031
(8.0) Dia
.315
E2
(5.54)
.218
(8.9)
.350
(0.9)
.035
Maximum Panel Thickness with
Standard Hardware: .134” (3.40mm)
Indicators
.280” (7.1mm)
Smooth with Keyway
Keylocks
Note: Plunger selection is not required for MB2400 pushbuttons.
The plunger can be used with or without a cap.
A2
Panel Cutouts
(5.8)
.228
(0.6)
.024
(6.5) Dia
.256
With
Optional Locking Ring
(5.8)
.228
Standard hardware includes 2 hex nuts & 1 lockwasher.
Hardware is illustrated following the Typical Switch Dimension drawings.
www.nkkswitches.com
(6.5) Dia
.256
(2.2) Dia
.087
Accessories
(6.5) Dia
.256
For E1 or E2 Bushing
with D Flat
(6.1)
.240
Supplement
For A1, A2, S1, or S2 Bushing
with Keyway
Rockers
Normal
Pushbuttons
Down
Throw & Switch Schematics
Slides
Normal
Connected Terminals
Touch
Plunger Position
( ) = Momentary
C103
Toggles
Series MB2400
Keylocks
Programmable Illuminated PB
Pushbuttons
Rockers
CONTACT MATERIALS & RATINGS
W
Silver over Silver
Power Level
3A @ 125V AC
G
Gold over Brass or Copper
Logic Level
0.4VA maximum @ 28V AC/DC maximum
Note: Complete explanation of operating range in Supplement section.
C
A
Power Level
or Logic Level
Gold over Silver
3A @ 125V AC
or 0.4VA maximum @ 28V AC/DC maximum
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.
TERMINALS
Straight PC Mount with Bracket
13
Straight PC Mount with Reinforced Bracket
15
.250” (6.35mm)
Terminal with
.465” (11.8mm)
Bracket
17
.425” (10.8mm)
Terminal with
.630” (16.0mm)
Bracket
23
.964” (24.5mm)
Terminal with
1.150” (29.2mm)
Bracket
25
.250” (6.35mm)
Terminal with
.465” (11.8mm)
Bracket
26
.750” (19.05mm)
Terminal with
.953” (24.2mm)
Bracket
.425” (10.8mm)
Terminal with
.630” (16.0mm)
Bracket
Tactiles
Slides
Rotaries
Snap-Action Bracket PC Mount Pushbuttons
40
Right Angle PC
Vertical PC
Tilt
30
CAPS & CAP COLORS
F
AT475
.201” (5.1mm)
Diameter Cap
(5.1) Dia
.201
(6.4)
.253
H
(4.0)
.157
AT496
.295” (7.5mm)
Diameter Cap
Material: Polyamide
Material: Polyamide
Finish: Glossy
Finish: Glossy
Supplement
Accessories
Indicators
Touch
PCB footprints are on the following
Typical Switch Dimension pages.
Cap Colors
Available:
C104
A
Black
B
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White
(7.5) Dia
.295
(6.4)
.253
C
Red
(4.0)
.157
Toggles
Series MB2400
Snap-Action Bracket PC Mount Pushbuttons
TYPICAL SWITCH DIMENSIONS
(0.9)
.035
Double
Pole
B R AC KE T
LE N GT H
(0.5) Typ
.020
(0.8) Typ
.031
(4.7) Typ
.185
(4.5) Typ
.177
(1.17) Typ
.046
(1.17) Typ
.046
(4.8) Typ
.189
(3.2) Typ
.126
MB2411A2G13-FA
(12.7)
.500
(8.0)
.315
(15.8)
.622
(1.6) Typ
.063
(2.4) Typ
.095
(1.6) Typ
.063
3
(7.9) Typ
.311
(7.9) Typ
.311
2
(4.7) Typ
.185
(4.7) Typ
.185
1
(1.8) Dia Typ
.073
(1.5) Dia Typ
.059
(1.8) Dia Typ
.073
(1.5) Dia Typ
.059
C
(4.8) Typ
.189
3
6
2
5
1
4
CL
Terminal
Code:
Terminal
Length:
Bracket
Length:
13
.250 (6.35mm)
.465 (11.8mm)
15
.425 (10.8mm)
.630 (16.0mm)
17
.964 (24.5mm)
1.150 (29.2mm)
(6.4)
.253
(5.1) Dia Typ
.201
(2.8) Dia Typ
.112
(6.2) Dia Typ
.244
Single
Pole
(2.4)
.096
Straight PC • Reinforced Bracket
(0.9)
.035
Double
Pole
2
NO
(0.5) Typ
.020
(0.8) Typ
.031
(4.7) Typ
.185
3
NC
(4.5) Typ
.177
(4.8) Typ
.189
(1.27) Typ
.050
(1.17) Typ
.046
(6.35) Typ
.250
(4.8) Typ
.189
(19.05)
.750
(2.4) Typ
.095
(3.18) Typ
.125
(3.18) Typ
.125
(9.53) Typ
.375
3
(9.53) Typ
.375
2
(4.7) Typ
.185
(1.8) Dia Typ
.073
(1.5) Dia Typ
.059
(12.7)
.500
(9.1)
.358
1
(4.7) Typ
.185
(1.8) Dia Typ
.073
(1.5) Dia Typ
.059
Touch
1
C
MB2411A2G23-FA
Indicators
TERMIN A L
LEN G T H
Tilt
B R AC KE T
LE N GT H
3
6
2
5
1
4
CL
Terminal
Code:
Terminal
Length:
Bracket
Length:
23
.250 (6.35mm)
.465 (11.8mm)
25
.425 (10.8mm)
.630 (16.0mm)
26
.750 (19.05mm)
.953 (24.2mm)
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Accessories
(7.1)
.280
Programmable Illuminated PB
3
NC
Keylocks
2
NO
Rotaries
1
C
Tactiles
T ERMIN A L
LEN G T H
Pushbuttons
Single
Pole
(2.4)
.096
Supplement
(7.1)
.280
Slides
(6.4)
.253
Straight PC • Bracket
(5.1) Dia Typ
.201
(2.8) Dia Typ
.112
(6.2) Dia Typ
.244
Rockers
C105
Toggles
Series MB2400
Snap-Action Bracket PC Mount Pushbuttons
TYPICAL SWITCH DIMENSIONS
Single Pole
(4.7) Typ
.185
COM NO NC
C
(2.9)
.114
(5.08)
.200
(1.4) Typ
.055
(7.9)
.311
(6.22)
.245
(2.4)
.096
(13.0)
.512
(6.4)
.253
(7.32)
.288
1
2
(12.7)
.500
(4.3)
.169
(0.4)
.016
(12.7)
.500
1
3
(0.8) Typ
.031
(4.7) Typ
.185
(1.27)
.050
(1.8) Dia Typ
.073
(2.54) Typ
.100
MB2411A2G30-FA
Right Angle PC
Double Pole
(2.84) Dia
.112
(6.2) Dia
.244
Keyway
COM NO NC
(2.9)
.114
(5.08)
.200
(1.4) Typ
.055
(6.2)
.245
(2.4)
.096
(6.4)
.253
(13.0)
.512
4
(12.7)
.500
(5.1) Dia
.201
(7.32)
.288
5
(4.7) Typ
(3.81) .185 6
.150
6
3
1
2
4
2
1
(12.7)
.500
(4.3)
.169
(0.4)
.016
(12.7)
.500
5
3
(0.8) Typ
.031
(4.7) Typ
.185
(1.27) Typ
.050
(3.8)
.150
(1.8) Dia Typ
.073
(2.54) Typ
.100
MB2461A2G30-FA
Vertical PC
Single Pole
3
Tilt
NC
(2.84) Dia
.112
(6.2) Dia
.244
Keyway
Touch
Indicators
(1.4) Typ
.055
(5.08)
.200
(2.4)
.096
(6.2)
.245
(6.4)
.253
(7.32)
.288
(0.4)
.016
(12.7)
.500
2
COM
1
Supplement
www.nkkswitches.com
(1.27)
.050
(2.7)
.106
(0.8) Typ
.031
(3.8) Typ
.150
(1.8) Dia Typ
.073
(2.54) Typ
.100
(2.4) Typ
.094
6
3
NO
5
2
COM
4
1
MB2411A2G40-FA
C106
(12.7)
.500
(8.0)
.315
Double Pole
2
1
(13.0)
.512
(5.1) Dia
.201
(3.81) Typ
.150
3
NO
NC
Accessories
2
3
(5.1) Dia
.201
Rotaries
Slides
Tactiles
(2.84) Dia
.112
(6.2) Dia
.244
Keyway
Keylocks
Programmable Illuminated PB
Pushbuttons
Rockers
Right Angle PC
(4.8)
.189
(12.7)
.500
(3.81) Typ
.150
(1.27) Typ
.050
(12.7)
.500
(1.8) Dia Typ
.073
(2.54) Typ
.100
3
6
2
5
1
4
Series MB2400
Toggles
Snap-Action Bracket PC Mount Pushbuttons
HARDWARE
Standard Hardware
(6.4) Dia (10.2) Dia
.252
.402
1 included with each switch
Material:
Brass with Nickel Plating
(9.0)
.354
(1.5)
.059
Material:
Steel with Zinc/Chromate
C
(0.5)
.020
Programmable Illuminated PB
2 included with each switch
AT509
Lockwasher
Optional Hardware
(12.0) Dia
.472
Material:
Steel with Zinc/Chromate
(5.8)
.229
(1.68)
.066
(0.8)
.031
Tilt
Tactiles
Slides
Rotaries
(0.8)
.031
(12.0) Dia
.472
Touch
(1.7)
.067
(2.0)
.079
(5.5)
.217
Indicators
Material:
Steel with Zinc/Chromate
(6.2) Dia
.244
Accessories
(2.0)
.079
AT515
Locking Ring
for E1 Bushing
Keylocks
(6.35) Dia
.250
Supplement
AT507H
Locking Ring
for A1 or S1 Bushing
Pushbuttons
(8.0)
.315
Rockers
1/4-40 Thd
AT513H Inch Threaded
Hexagon Nut
www.nkkswitches.com
C107
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