Bracket PC Mount Miniature Pushbuttons
POLES & CIRCUITS
Series MB2000
Plunger Position
( ) = Momentary
Connected Terminals
Throw & Switch Schematics
Pole
Model
Normal
Keyway
Down
Normal
Keyway
Down
Note: Terminal numbers are
not actually on the switch.
SP
MB2011
MB2065
ON
ON
(ON)
ON
2-3
2-1
SPDT
3
2 (COM)
1
C
DP
MB2061
MB2085
ON
ON
(ON)
ON
2-3 5-6
2-1 5-4
DPDT
3
2
(COM)
1
6
5
4
4P
MB2181
MB2185
ON
ON
(ON)
ON
2-3 5-6
8-9 11-12
2-1 5-4
8-7 11-10
4PDT
3
2
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
Momentary
Plunger Length
(2.3)
.091
Momentary
Cap Location
(4.7)
.185
Alternate
Plunger Length
(4.0)
.157
Alternate
Cap Location
BUSHINGS
S2
.335” (8.5mm)
Smooth with Keyway
S1
.335” (8.5mm)
Threaded with Keyway
A2
.200” (5.08mm)
Smooth with Keyway
(0.8)
.031
(6.2) Dia
.244
(0.8)
.031
1/4-40 Thd
(0.8)
.031
(6.2) Dia
.244
(9.0) Dia
.354
(2.5)
.098
(8.5)
.335
(3.5)
.138
(9.0) Dia
.354
(2.5)
.098
(8.5)
.335
(3.5)
.138
(9.0) Dia
.354
(2.5)
.098
(5.08)
.200
(3.0)
.118
Standard hardware: 2 hex nuts (AT513H)
& 1 lockwasher (AT509)
Optional hardware: Locking ring (AT507)
Panel Cutouts
Only available in part numbers
MB2011SA2W31 & MB2011SA2G31
For S2, S1, or A2 Bushing
with Keyway
(6.5) Dia
.256
(5.6)
.220
(0.6)
.024
With Optional
Locking Ring
(6.5) Dia
.256
(2.2) Dia
.087
(6.5)
.256
Maximum Panel Thickness with
Standard Hardware: .154” (3.9mm)
www.nkk.com
C81
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