Guard Lock Safety-door Switch
D4JL
S
a
fe
ty D
o
o
r
Sw
it
c
h
e
s
P
recau
ti
on
s f
o
r
All Sa
fe
ty
Do
o
r
Switch
e
s
D4
NS
D4
GS-
N
D
4
BS
D4
G
L
D4
JL
D
4
NL
D4
BL
D4
NH
D
4
0
B
D4
NS-
SK0
1
D4
NS-
SK3
0
D4
J
L
-SK3
0
62
Trapped Key Models
(1) Operation Key removed, solenoid OFF, and trapped key
removed.
(2) Operation Key inserted, solenoid OFF, and trapped key
removed. Status: Door unlocked.
(3)
Operation Key inserted, solenoid OFF, and trapped key inserted.
Status: Door locked and trapped key cannot be removed.
Cross-sectional view B-B
OFF
B
B
Cross-sectional view B-B
OFF
B
B
Cross-sectional view B-B
OFF
B
B
(4)
Operation Key inserted, solenoid ON, and trapped key inserted.
Status: Door locked and trapped key can be removed.
(5) Operation Key inserted, solenoid ON, and trapped key
removed. Status: Door unlocked.
(6) Operation Key removed, solenoid ON, and trapped key
removed.
Cross-sectional view B-B
ON
B
B
Cross-sectional view B-B
ON
B
B
Cross-sectional view B-B
ON
B
B
