Allen-Bradley J-Frame CB and Motor Circuit Protectors Thermal Magnetic Trip Units Installation Instructions

Bul. 140U
J-Frame Circuit Breaker and Motor Circuit Protector
Instruction Leaflet for Thermal Magnetic Trip Units
Warning
3
12-14 in -lb (1.4-1.6 N ⋅m )
DO NOT ATTEMPT TO INSTALL
OR PERFORM MAINTENANCE ON
EQUIPMENT WHILE IT IS ENERGIZED. DEATH OR SEVERE PERSONAL INJURY CAN RESULT
FROM CONTACT WITH ENERGIZED EQUIPMENT. ALWAYS
VERIFY THAT NO VOLTAGE IS
PRESENT BEFORE PROCEEDING.
1
4
2
P us h In
7 5 in-lb
( 8 N ⋅m )
40752-025(1) Effective 03/02
8mm
Notes:
5
6-8 in-lb (0.7-0.9 N ⋅m )
1. Thermal adjust knob and neutral pole adjust knob
are set with trip unit in tripped position.
2. Thermal adjust knob setting must not be changed
until 30 minutes after overload interruption.
6
4 P 3 d (0 % )
M ag ne tic
T he rm a l
N e u tra l P o le
A d ju s t
4 P 4 d (1 0 0 % )
or
4 P 4 d n/2 (6 0% )
M ag n etic
A d ju s t
T he rm a l
A d ju s t
TR IP
ON
T R IP
RESET
40752-025 (1) Effective 03/02
Effective 7/99
">