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Compact® NSF and NSJ 150 to 600 A Circuit Breakers
Section 9—Accessories
© 1995–2003 Schneider Electric All Rights Reserved
37
INTERLOCKING ACCESSORIES
Interlocking prevents simultaneous closing of two circuit breakers.
Interlocking of
Circuit Breakers
with Toggle
Control
Two models:
• For Compact
®
NSF150–NSF250 circuit breakers (three-pole or four-pole)
• For Compact
®
NSJ400–NSJ600 circuit breakers (three-pole or four-pole)
Padlocking systems can receive one or two padlocks with diameters ranging from
0.19–0.31 inch (5–8 mm). Both interlocked circuit breakers should be fixed version or plug-in version.
Two sliding interlocking bars can be used to interlock three circuit breakers installed side-by-side, in
which case one circuit breaker is in the ON position and the two others in the OFF position.
Interlocking of
Circuit Breakers
with Rotary
Handles
For Compact
®
NSF150–NSJ600 circuit breakers
Control Device Means NSF150–NSJ600
Toggle
Sliding Bar Interlocking Mechanical Device ■
Rotary Handle (Directly or Door Mounted)
Mechanical Interlocking ■
2 Keylocks and 1 Key ■
Interlocking with Toggle Control
push
to
trip
push
to
trip
06153114
Interlocking with Rotary Handles
push
to
t
ri
p
ON
I
O
OFF
push
to
trip
ON
I
O
OFF
ON
I
O
tripped
t
ripped
ON
I
OFF
O
reset
reset
OFF
06153115