””The contact block of this series is standard see page2 and page 4 for contact arran
””gement and dimension.
”¤Model designation
””It must use transpanrent button to havemarking printing on buttons.The colors can be distingui shed by buing different color guard ring.

Designation
Dignal
Description
1.Mounting
hole
TN2
TN3
Ø22mm/Ø25mm
Ø30mm
2.Type
BF
BL
BM
BA
BK
BP
BT
flat head
long head
mushroom head
long head
(alternate)
push-lock
push-pull
twin-touch
3.Lens color
R
G
Y
W
B
red
green
yellow
white
black
4.No.of contacts fitted
1
2
3
4
1
2
3
4
5.Type of contact
block fitted
A
B
C
AB
1a
1b
1a1b
1a+1b
6.Lettering
01”«41
 see G20
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