Specifications

28
COMPACT
®
NS circuit breaker
COMPACT
®
NS circuit breaker: functions and characteristics
Accessories
Locking systems
Locking in the off position
Locking of the toggle using a
stationary device
Locking of the toggle using a
fixed device
E28039
E28041
Locking of the motor operator
using a keylock
E29149
■ Padlocking systems can receive up to three padlocks with diameters ranging from
0.19 to 0.31 inch (5 to 8 mm) (padlocks not supplied).
Locking of the rotary handle using
a padlock or a keylock
E36971
E36967
Locking of the rotary handle using
a keylock
Cable operating handle
Operation
■ The cable operator maintains:
❑ Suitability for isolation,
❑ Indication of three positions O (Off), I (On) and tripped,
❑ Access to push-to-test,
❑ The circuit breaker may be locked in the off position by one to three padlocks,
❑ Door can be locked closed due to interlocking features of the handle operator.
Installation
Handle is mounted on flange of enclosure using specified mounting dimensions
while circuit breaker and operating mechanism are mounted to inside of enclosure
using two screws.
Cable lengths available in 3-, 5- or 10-foot lengths to accommodate variety of
mounting locations. Handles are available in painted Nema 1, 3, 3R, 4 (sheet steel)
and 12 ratings or chrome (Nema 4, 4x).
Flange-mounted handle cable operating mechanism
E34103
Control device Function Means Required accessories NSF150/250 NSJ400/600
Toggle Lock in off position Padlock Removable device ■■
Lock in off or on position Padlock Stationary device ■■
Direct rotary Lock in off position Padlock ■■
Handle Keylock Locking device + keylock
MCC rotary operating Lock in off position Padlock ■■
Handle
Extended rotary Lock in off position, Padlock ■■
Operating handle door opening prevented Keylock Keylock
Motor operator Lock in off position, motor Padlock ■■
mechanism locked out Keylock Locking device ■
(keylock incorporated)
push
to
trip
push
to
trip
push
to
trip
2
1
I
p
ush
ON
O
p
ush
OFF
manu/auto
ON
I
O
OFF
ON
I
profalux
O
OFF
profalux
push
to
trip
O
O
FF