Series YB2
Panel Seal Pushbuttons
D122
Indicators
AccessoriesSupplement
Tactiles
KeylocksRotaries
Pushbuttons
D
Illuminated PB
Slides
Programmable
Rockers
Touch Tilt
Toggles
www.nkkswitches.com
Plunger Position
( ) = Momentary
Connected Terminals Throw & Switch/Lamp Schematics
Pole Model
Normal Down Normal Down
Notes: Switch is marked with NC, NO, COM, L+, L–.
Lamp circuit is isolated and requires an
external power source.
SP
YB215
YB216
ON
ON
(ON)
ON
1-3 1-2 SPDT
DP
YB225
YB226
ON
ON
(ON)
ON
1-3 4-6 1-2 4-5 DPDT
Silver Contacts
Power Level: 3A @ 125/250V AC
Switch base is black
K
W
Panel Seal
(Round and Square)
Solder Lug/
.110” (2.8mm) Quick Connect
C
Round
01
P
C
Normally Open and Normally Closed
Gold Contacts
Logic Level: 0.4VA max. @ 28V AC/DC max.
Switch base is ivory
4
6 NC
1
3 NC 2 NO 5 NO
(COM)
Contact points are both Normally Open and
Normally Closed.
Two o-rings provide
panel seal protection
meeting IP65 of
IEC60529 standards.
POLES & CIRCUITS
CONTACT POINT PANEL SEAL
SHAPE BEZEL
CONTACT MATERIALS & RATINGS
TERMINALS
W G
S
Square
Black Brushed Chrome
For Round or Square
.288
(2.0)
.079
(1.2)
.047
(2.8)
.110
Thk = (0.5)