Series MB2400
Toggles
Snap-Action Pushbuttons
General
Specifications
Electrical Capacity (Resistive Load)
Power Level (silver):
Logic Level (gold):
Logic/Power Level:
(gold over silver)
Rockers
Pushbuttons
C
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.
Other Ratings
Programmable Illuminated PB
Contact Resistance:
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Nominal Operating Force:
Travel
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)
Keylocks
Materials & Finishes
Plunger:
Bushing:
Frame:
Case:
Base:
Movable Contactor:
Movable Contacts:
Stationary Contacts:
Terminals:
Slides
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
Rotaries
Environmental Data
Tactiles
Operating Temp Range:
Humidity:
Vibration:
Shock:
–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/s
2
) acceleration (tested in 6 right angled directions, with 3 shocks in each direction)
Tilt
Installation
Touch
Mounting Torque:
Cap Installation Force:
Soldering:
Cleaning:
Indicators
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:
UL:
CSA:
Supplement
UL94V-0 case & base
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.
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.
Accessories
C96
www.nkk.com
Snap-Action Pushbuttons
Series MB2400
Toggles
Distinctive
Characteristics
Snap-acting mechanism gives smooth actuation, short stroke,
light touch, and audible feedback. This mechanism also provides
long mechanical life.
High torque bushing construction prevents rotation or separation
from frame during installation.
Antijamming design protects contacts from damage due to
excessive downward force on the actuator.
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.
Longer center solder lug terminal simplifies wiring and
soldering.
Silver contacts of specially composed alloy for hardness.
Epoxy sealed terminals prevent entry of solder flux and other
contaminants.
Prominent external insulating barriers increase insulation resistance
and dielectric strength.
C
Actual Size
Bracket PC Mount
Page C102
www.nkk.com
C97
Supplement
Snap-in Mount
Page C108
Accessories
Indicators
Touch
Bushing Mount
Page C98
Tilt
Tactiles
Slides
Rotaries
Keylocks
Programmable Illuminated PB
Pushbuttons
Rockers
Series MB2400
Toggles
Snap-Action Snap-in Mount Pushbuttons
TYPICAL SWITCH
Snap-Action Snap-in Mount Pushbuttons
ORDERING EXAMPLE
Series MB2400
C F
Toggles
Rockers
Pushbuttons
C
11
61
Poles & Circuits
SPDT
DPDT
ON
ON
(ON)
(ON)
W
G
Contact Materials
& Ratings
Silver
Rated 3A @ 125V AC
Gold
Rated 0.4VA max @
28V AC/DC max
Gold over Silver
Rated 3A @ 125V AC
& 0.4VA max @ 28V
AC/DC max
A
B
C
E
F
G
H
Cap &
Cap Colors
Black
White
Red
Yellow
Green
Blue
Gray
Optional Bezels
1
*2
*3
*4
Bezel without LEDs
Bezel with 1 Round LED
Bezel with 2 Round LEDs
Bezel with 2 Rectangular LEDs
*
Available in Black color only
Bezel Colors
A
B
C
E
F
G
H
Black
White
Red
Yellow
Green
Blue
Gray
C
E
F
C
F
LED Colors
1 LED
Red
Green
2 LEDs
Top LED
Red
Yellow
Green
Bottom LED
C
E
F
Red
Yellow
Green
C
Programmable Illuminated PB
( ) = Momentary
A
Keylocks
Mounting Frame
J
Snap-in Frame
01
03
05
06
07
Terminals
Solder Lug
.425” (10.8mm) Wirewrap
.750” (19.05mm) Wirewrap
.964” (24.5mm) Wirewrap
.250” (6.35mm) Straight PC
Rotaries
Slides
IMPORTANT:
Tactiles
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.
Tilt
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
MB2411JW01-C-3A-CF
Touch
Touch
MB2411JW01-C
Red Cap
Red Cap
SPDT
ON-(ON) Circuit
Silver Contacts with
3-Amp Rating
Snap-in Frame
Snap-in Frame
SPDT ON-(ON) Circuit
Silver Contacts
with 3-Amp Rating
Solder Lug Terminals
1 Red LED
1 Green LED
Black Bezel
with 2 Round LEDs
Indicators
Accessories
Solder Lug Terminals
Supplement
C108
www.nkk.com
www.nkk.com
C109
Supplement
Accessories
Indicators
Tilt
Tactiles
Slides
Rotaries
Keylocks
Programmable Illuminated PB
Pushbuttons
Rockers
MB24
11
J
W
01
C
3
A
Series MB2400
Toggles
Snap-Action Snap-in Mount Pushbuttons
POLES & CIRCUITS
Plunger Position
( ) = Momentary
Normal
Pole
Model
Down
Connected Terminals
Normal
Down
Throw & Switch Schematics
Note: Terminal numbers are not
actually on the switch.
SPDT
DPDT
3
1 (COM)
3
1 (COM)
2
6
2
4
5
Pushbuttons
Rockers
C
SP
DP
MB2411
MB2461
ON
ON
(ON)
(ON)
1-3
1-3 4-6
1-2
1-2 4-5
Programmable Illuminated PB
MOUNTING FRAME
J
Snap-in Frame
Panel Cutout
for Single Pole
without Bezel
Panel Cutout
for Double Pole
without Bezel
(15.0)
.591
(15.0)
.591
Keylocks
(18.0)
.709
(2.85) Dia
.112
(12.2)
.480
(12.5)
.492
(13.1)
.516
Panel Thickness without Bezel: .039” ~ .157” (1.0mm ~ 4.0mm)
Panel Thickness with Bezel: .039” ~ .126” (1.0mm ~ 3.2mm)
Rotaries
CONTACT MATERIALS & RATINGS
W
Silver over Silver
Power Level
3A @ 125V AC
Slides
G
Gold over Brass or Copper
Logic Level
0.4VA maximum @ 28V AC/DC maximum
Note: Complete explanation of operating range in Supplement section.
Tactiles
A
Gold over Silver
Power Level
or Logic Level
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.
Tilt
TERMINALS
01
Solder Lug
Epoxy Seal
(2.0)
.079
(4.0)
.157
Touch
03
.250” (6.35mm)
Straight PC
Epoxy Seal
(6.35)
(4.8) .250
.189
Indicators
(2.0)
(1.1) .079
.043
Thk = (0.8)
.031
(1.17)
.046
Thk = (0.8)
.031
Wirewrap or Extended PC
Accessories
05
06
07
C110
.425”
(10.8mm)
.750”
(19.05mm)
.964”
(24.5mm)
3
3
(4.8)
.189
6
5
4
Epoxy Seal
A
(1.27)
.050
Thk = (0.8)
.031
Refer to footprints if using
as extended PC terminal.
Dimension A = terminal
lengths as shown beside
the code boxes at left.
2
1
(4.7) Typ
.185
(1.8) Dia Typ
.073
2
1
(4.7) Typ
.185
Supplement
(1.8) Dia Typ
.073
Single Pole
Double Pole
www.nkk.com
Snap-Action Snap-in Mount Pushbuttons
CAP & CAP COLORS
AT465
.453” (11.5mm)
Square Cap
Material: Polycarbonate
Finish: Glossy
(11.5) Sq
.453
(3.8)
.150
(8.4)
.331
Series MB2400
A
F
Black
Legend details
at end of this
section.
Green
G
Blue
H
Gray
OPTIONAL SNAP-IN BEZELS & BEZEL COLORS
1
AT207 Bezel
(11.8)
.465
(2.2)
.087
(15.6)
.614
(12.0)
.472
(21.5)
.846
C
(15.0)
.591
Black
White
Red
Yellow
Green
Blue
Gray
A
Material: Polycarbonate
Finish: Glossy
Contact factory for matte
finish.
B
C
E
A
G
H
A
Single Pole Double Pole
(12.5)mm
.492”
(13.1)mm
.516”
2
Black
LED colors & specifications
on next page.
Single Pole Double Pole
B
Material: Polycarbonate
Finish: Glossy
Contact factory for
matte finish.
(19.0)
.748
(11.8)
.465
(13.5)
.531
(2.2)
.087
(8.8) Dia
.346
(13.8)
.543
(15.0)
.591
(12.0)
.472
(15.6)
.614
(5.4) Dia
.213
(30.2)
1.19
A
B
(12.5)mm
.492”
(6.25)mm
.246”
(13.1)mm
.516”
(6.55)mm
.258”
A
3
Material:
Polycarbonate
Finish:
Semi-glossy
(8.0)
.315
(8.0)
.315
(5.0) Typ
.197
(21.5) Sq
.846
A
(18.4)mm
.724”
(18.7)mm
.736”
A
Tab
www.nkk.com
C111
Supplement
1. Pry out
tab on
bezel to a
45° angle.
Tab
45°
2. Insert
switch frame
under tab
and snap
on the bezel.
3. Push tab
back into
place.
4. Snap
assembled
bezel and
switch into
panel.
Accessories
Bezel Assembly
Indicators
Material:
Polycarbonate
Finish:
Semi-glossy
(2.0) Typ
.079
(7.8)
.307
(11.8)
.465
(2.2)
.087
LED colors & specifications
on next page.
Single Pole Double Pole
(15.0)
.591
Touch
4
AT213 Bezel
for AT618 LED
(10.0)
.394
(12.0)
.472
A
Black
Tilt
(3.0) Dia Typ
.118
(7.8)
.307
(11.8)
.465 (21.5) Sq
.846
(2.2)
.087
LED colors & specifications
on next page.
Single Pole Double Pole
A
(18.4)mm
.724”
(18.7)mm
.736”
A
(15.0)
.591
Tactiles
AT212 Bezel
for AT617 LED
(10.0)
.394
(12.0)
.472
A
Black
Slides
Rotaries
Keylocks
AT208 Bezel
for AT070 LED
Programmable Illuminated PB
A
F
Pushbuttons
Rockers
Contact factory
for matte finish.
B
White
C
Red
E
Yellow
Toggles