Datasheet
Miniature Pushbuttons Series KB
www.nikkaiswitches.com • Nihon Kaiheiki • Phone 81- 44-813-8008 • Fax 81-44-813-8038
3-07
Indentation
Long Tab
Notch
Slot
Round Tab
Cap
OPTIONAL ACCESSORIES
Protective Guards
AT494
For Square & Round
(not for Barrier type)
Material: Cover: Polycarbonate Base: Polyamide
AT4024
For Rectangular
(not for Barrier type)
ASSEMBLY INSTRUCTIONS
Panel Thickness
Range:
.020” ~ .268”
(0.5 ~ 6.8mm)
for Bushing Mounting
.020” ~ .091”
(0.5 ~ 2.3mm)
for Snap-in Mounting
Protective Guards reduce
the depth of switch
behind panel by
.047” (1.2mm).
(6.5)
.256
(11.5)
.453
Assembled
Cap Height
(5.1)
.201
(12.3) Dia
.484
(9.0)
.354
(19.0) Sq
.748
(7.0)
.276
(1.2) R
.047
(1.6)
.063
(6.5)
.256
(11.5)
.453
Assembled
Cap Height
(23.5)
.925
(9.0)
.354
(12.3) Dia
.484
(7.0)
.276
(1.2) R
.047
(19.0)
.748
Cap Removal & Installation
For alternate action models
cap must be in UP position
for cap removal. Indentations
on opposite sides of the cap
provide an easy way to lift
the cap out of the holder,
using either the nger nails,
or cap extractor AT109.
LED Polarity & Orientation in Lamp Socket Cap Replacement
Note that the cap has a pair of
round tabs and a pair of long tabs
which should be used for correctly
replacing the cap in its holder.
Using the long tabs as guides, slide
the cap with the long tabs moving
into the slots on opposite sides of
the cap holder. Then, the round
tabs will snap into notches on the
other two sides of the holder.
AT108 Socket Wrench
for Bushing Mounting
AT109 Cap Extractor AT111 Lamping Tool
Super Bright LEDs AT625,
AT631, & AT632 are
electrostatic sensitive.
LED
AT635
LEDs
AT625
AT631
AT632
LED
AT634
Overtightening the
mounting nut
may damage the
switch housing.
Flat
(-)
(+)
Flat
(-)
(+)
Attention
Electrostatic
Sensitive Devices
(+) Marking
Positive Lamp Socket
Negative Lamp Socket
To
p
View of
Switch
Flat
(+)
(-)










