Series MB2000
Miniature Pushbuttons
General
Specifications
Electrical Capacity (Resistive Load)
Power Level (silver):
Logic Level (gold):
Logic/Power Level:
(gold over silver)
6A @ 125V AC & 3A @ 250V AC or 3A @ 30V DC
0.4VA maximum @ 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
Combines silver & gold ratings
Note: Find additional explanation dual rating & operating range in Supplement section.
Pushbuttons
Rockers
Toggles
C
Other Ratings
Programmable Illuminated PB
Contact Resistance:
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Nominal Operating Force:
Contact Timing:
Plunger Travel:
Pretravel:
Overtravel:
Total Travel
10 milliohms maximum for silver; 20 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
50,000 operations minimum for splashproof models; 100,000 for all other models
25,000 operations minimum for silver; 50,000 operations minimum for gold
50,000 operations minimum for silver at 3A @ 125V AC
Momentary Action: 1-pole 9.32N; 2-pole 16.18N; 4-pole 25.54N;
Alternate Action: 1-pole 4.41N; 2-pole 7.06N; 4-pole 11.77N
Slow make, slow break
Screw-on Cap (Mom.)
Screw-on Cap (Alt.)
Snap-on Cap (Mom. & Alt.)
.028” (0.71mm)
.110” (2.80mm)
.125” (3.19mm)
.043” (1.09mm)
.043” (1.10mm)
.050” (1.26mm)
.071” (1.80mm)
.153” (3.90mm)
.175” (4.45mm)
Brass w/nickel plating; polyacetal w/B1 bushing
Bushing:
Brass with nickel plating
Stainless steel
Case:
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 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/s
2
) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
B3 & D3 bushing options equivalent to IP67
1.5Nm (13.0 lb
•
in) for double nut; .7Nm (6.0 lb
•
in) for single nut
80.0N (18.0 lbf) maximum downward force on actuator
Wave Soldering (PC version): See Profile A in Supplement section.
Manual Soldering: See Profile A in Supplement section.
These devices are not process sealed. Hand clean locally using alcohol based solution.
UL94V-0 case
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 models recognized at 6A @ 125V AC or 3A @ 250V 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.
All models certified at 6A @ 125V AC or 3A @ 250V AC or 0.4VA max. @ 28V max.
Rotaries
Keylocks
Materials & Finishes
Plunger:
Frame:
Movable Contactor:
Movable Contacts:
Stationary Contacts:
Terminals:
Tactiles
Slides
Environmental Data
Operating Temp Range:
Humidity:
Vibration:
Shock:
Sealing:
Tilt
Installation
Touch
Mounting Torque:
Cap Installation Force:
Soldering Time & Temp:
Process Seal:
Indicators
Standards & Certifications
Flammability Standards:
UL:
Accessories
CSA:
Supplement
C72
www.nkk.com
Miniature Pushbuttons
Series MB2000
Toggles
Distinctive
Characteristics
Guide interlocked with actuator block prevents window locking and
maintains correct plunger alignment to assure contact stability.
Employs an over-center actuator mechanism, which diminishes
sparking and increases operating life in AC circuits.
High torque bushing construction prevents rotation
or separation from frame during installation.
Splashproof option (D3 and B3 bushing codes) features an
o-ring within the bushing and one under the face nut
to protect from splashed, sprayed, or spilled liquids.
High insulating barriers, formed in the molded
diallyl phthalate case, increase isolation of circuits
in multipole devices.
Prominent external insulating barriers increase
insulation resistance and dielectric strength.
Epoxy sealed terminals prevent entry of solder
flux and other contaminants.
Clinching of the frame to the case well above the base
and terminals provides 1,500V dielectric strength.
C
Actual Size
Bracket PC Mount
Page C80
www.nkk.com
C73
Supplement
Large Bushing
Page C87
Accessories
Indicators
Touch
Bushing Mount
Page C74
Tilt
Tactiles
Slides
Rotaries
Keylocks
Programmable Illuminated PB
Pushbuttons
Rockers
Series MB2000
Toggles
Bracket PC Mount Miniature Pushbuttons
TYPICAL SWITCH ORDERING EXAMPLE
Pushbuttons
Rockers
MB
C
2011
S
S2
G
13
C
Caps
A
Poles & Circuits
2011
2065
2061
2085
2181
2185
SPDT
SPDT
DPDT
DPDT
4PDT
4PDT
ON
ON
ON
ON
ON
ON
(ON)
ON
(ON)
ON
(ON)
ON
A
G
W
Programmable Illuminated PB
Contact Materials
& Ratings
Silver
Rated 6A @ 125V AC
& 3A @ 250V AC
Gold
Rated 0.4VA max @
28V AC/DC max
Gold over Silver
Rated 6A @ 125V AC
& 0.4VA max @ 28V
AC/DC max
B
C
.315” (8.0mm) Diameter
.394” (10.0mm) Diameter
Cap Colors
A
B
C
E
F
G
H
Black
White
Red
Yellow
Green
Blue
Gray
( ) = Momentary
4-pole not for use with
right angle terminals
Keylocks
Rotaries
Plunger Type
S
Plunger for Screw-on Caps
S2
S1
Bushings
.335” (8.5mm)
Smooth with Keyway
.335” (8.5mm)
Threaded with Keyway
.200” (5.08mm)
Smooth with Keyway
Only Available in
Part Numbers
MB2011SA2G31 &
MB2011SA2W31
13
40
45
30
Slides
Terminals
.250” (6.35mm) Straight PC
with Bracket
.150” (3.81mm) Vertical PC
.100” (2.54mm) Vertical PC
Right Angle PC with .646”
(16.4mm) Support to Terminals
Available in 1- & 2-pole only
Right Angle PC with .500”
(12.7mm) Support to Terminals
Available in 1-pole only
Tactiles
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 in-
structions are noted on General Specifi-
cations page.
A2
Tilt
31
Touch
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
MB2011SS2G13-CA
Indicators
Black .394” (10.0mm)
Diameter Cap
.335” (8.5mm) Smooth Bushing
with Keyway
Gold Contacts
with 0.4VA Rating
Plunger for Screw-on Caps
Accessories
SPDT ON-(ON) Circuit
.250” (6.35mm) Straight PC
Terminals with Bracket
Supplement
C80
www.nkk.com
Bracket PC Mount Miniature Pushbuttons
POLES & CIRCUITS
Plunger Position
( ) = Momentary
Normal
Pole
Model
Keyway
Series MB2000
Throw & Switch Schematics
Note: Terminal numbers are
not actually on the switch.
Rockers
Toggles
Connected Terminals
Normal
Keyway
Down
Down
SP
MB2011
MB2065
MB2061
MB2085
MB2181
MB2185
ON
ON
ON
ON
ON
ON
(ON)
ON
(ON)
ON
(ON)
ON
2-3
2-1
SPDT
3
2 (COM)
1
C
DP
2-3 5-6
2-1 5-4
DPDT
3
2
(COM)
1
6
5
4
4P
2-3 5-6
8-9 11-12
2-1 5-4
8-7 11-10
4PDT
2
3
1
6
5
(COM)
4
9
8
7
12
11
10
PLUNGER TYPE
On alternate action models, after transferring circuit, the plunger returns to its original position and does not latch down.
S
Plunger for Screw-on Caps
(2.9)
.114
(2.9)
.114
(3.0)
.118
(2.3)
.091
(4.7)
.185
(4.0)
.157
BUSHINGS
S2
(0.8)
.031
(9.0) Dia
.354
(6.2) Dia
.244
(9.0) Dia
.354
(8.5)
.335
(3.5)
.138
(0.8)
.031
1/4-40 Thd
(0.8)
.031
(9.0) Dia
.354
(6.2) Dia
.244
(2.5)
.098
(2.5)
.098
(8.5)
.335
(3.5)
.138
(2.5)
.098
(5.08)
.200
(3.0)
.118
Panel Cutouts
For S2, S1, or A2 Bushing
with Keyway
(5.6)
.220
(6.5) Dia
.256
(0.6)
.024
(6.5) Dia
.256
(2.2) Dia
.087
(6.5)
.256
www.nkk.com
C81
Supplement
With Optional
Locking Ring
Maximum Panel Thickness with
Standard Hardware: .154” (3.9mm)
Accessories
Standard hardware: 2 hex nuts (AT513H)
& 1 lockwasher (AT509)
Optional hardware: Locking ring (AT507)
Only available in part numbers
MB2011SA2W31 & MB2011SA2G31
Indicators
Touch
Tilt
.335” (8.5mm)
Smooth with Keyway
S1
.335” (8.5mm)
Threaded with Keyway
A2
.200” (5.08mm)
Smooth with Keyway
Tactiles
Momentary
Plunger Length
Momentary
Cap Location
Alternate
Plunger Length
Alternate
Cap Location
Slides
Rotaries
Keylocks
Programmable Illuminated PB
Pushbuttons
Series MB2000
Toggles
Bracket PC Mount Miniature Pushbuttons
CONTACT MATERIALS & RATINGS
Rockers
W
G
Silver over Silver
Power Level
6A @ 125V AC & 3A @ 250V AC
Gold over Brass or Copper
Logic Level
0.4VA maximum @ 28V AC/DC maximum
Pushbuttons
C
Note: Complete explanation of operating range in Supplement section.
A
Gold over Silver
Programmable Illuminated PB
Power Level
or Logic Level
6A @ 125V AC & 3A @ 250V 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
13
.250” (6.35mm) Straight PC
with Bracket
40
.150” (3.81mm) Vertical PC
45
.100” (2.54mm) Vertical PC
Keylocks
(6.35)
.250
(3.81)
.150
(2.54)
.100
Rotaries
Tactiles
Slides
30
Right Angle PC
with .646” (16.4mm) Support to Terminal
31
Right Angle PC
with .500” (12.7mm) Support to Terminal
(16.4)
.646
(12.7)
.500
Tilt
Only Available in 1 & 2 Pole
Note: Full dimensioned drawings appear on the following pages.
Touch
CAPS & CAP COLORS
Indicators
B
AT413
.315” (8.0mm) Diameter
Screw-on Cap
(8.0) Dia
.315
C
(6.5)
.256
AT407
.394” (10.0mm) Diameter
Screw-on Cap
(10.0) Dia
.394
(8.0)
.315
Accessories
Cap Material: PBT
Finish: Glossy
M2.3 P0.4
Cap Material: PBT
Finish: Glossy
M2.3 P0.4
Supplement
Cap Colors
Available:
A
Black
B
White
C
Red
E
Yellow
F
Green
G
Blue
H
Gray
C82
www.nkk.com
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