Bushing Mount Miniature Pushbuttons
Series M
POLES & CIRCUITS
Plunger Position
( ) = Momentary
Connected Terminals
Throw & Switch Schematics
Normal
Down
Normal
Down
Note: Terminal numbers are not
actually on the switch.
Pole
Model
Keyway
Keyway
C
MBN12
MBN15
ON
ON
2 (COM)
SP
2-3
2-1
SPDT
3
1
ON
(ON)
MBN22
MBN25
ON
ON
ON
2
(COM)
1
5
DP
2-3 5-6
2-1 5-4
DPDT
3
6
4
(ON)
PLUNGER TYPES
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
(4.7)
.185
(2.3)
.091
(4.0)
.157
Momentary
Plunger Length
Momentary
Cap Location
Alternate
Plunger Length
Alternate
Cap Location
(2.85) Dia
.112
L
Plunger for Snap-on Caps
(10.4)
.410
(3.6)
.142
Momentary & Alternate
Plunger Length
Momentary & Alternate
Cap Location
BUSHINGS
.335” (8.5mm)
Threaded with Keyway
.335” (8.5mm)
Smooth with Keyway
.335” (8.5mm) Metric
Threaded with Keyway
S1
S2
S4
(0.8)
.031
(0.8)
.031
(0.8)
.031
(6.2) Dia
.244
M6P0.75
1/4-40 Thd
(9.0) Dia
.354
(9.0) Dia
.354
(9.0) Dia
.354
(2.5)
.098
(2.5)
.098
(2.5)
.098
(8.5)
.335
(3.5)
.138
(8.5)
.335
(3.5)
.138
(8.5)
.335
(3.5)
.138
Maximum Panel Thickness with
Standard Hardware: .154” (3.9mm)
Maximum Panel Thickness with
Standard Hardware: .154” (3.9mm)
www.nkkswitches.com
C75