Short Body Pushbuttons
POLES & CIRCUITS
Series YB
(
Plunger Position
) = Momentary
Connected Terminals
Throw & Power/Lamp Schematics
Pole
Model
Normal
Down
Normal
Down
Notes: Switch is marked with NO, NC, COM, L+, and L-.
Lamp circuit is isolated and requires
external power source.
SP
YB15
YB16*
ON
ON
(ON)
ON
1-3
1-2
SPDT
3
1 (COM)
2
L (+)
(-) L
DP
YB25
YB26*
ON
ON
(ON)
ON
1-3 4-6
1-2 4-5
DPDT
3
1 (COM)
2
6
4
5
L (+)
(-) L
* When in latchdown position for the alternate circuit, cap position is 0.5mm (.020") above the built-in bezel.
PANEL SEAL
No Code
Without Panel Seal
W
With Panel Seal
Bushing
Mounting
Supplied with
mounting nut.
Snap-in
Mounting
Bushing
Mounting
only
Supplied with
mounting nut
and o-ring AT089.
SHAPES & MOUNTING TYPES
Bushing Mounting
Snap-In Mounting
S
Square
C
Round
R
Rectangular
K
Square
M
Round
N
Rectangular
Bezel-barrier is an integral part of the switch body.
HOUSING
K
Black
Housing available in black only. The 1-piece body and bezel-barrier have a matte finish.
CONTACT MATERIALS & RATINGS
W
G
Silver Contacts
Gold Contacts
Power Level
Logic Level
3A @ 125/250V AC
0.4VA @ 28V AC/DC
See Supplement Index (page Z1) for complete explanation of operating range.
NKK Switches ? email: sales@nkkswitches.com ? Phone (480) 991-0942 ? Fax (480) 998-1435
www.nkkswitches.com
12-02
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