Warning caution – Rockwell Automation 140U N-Frame Circuti Breakers Instruction Leaflet for N-Frame Circuit Breakers User Manual

Page 6

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Page 6

Fig. 2-3

Breaker Mounting Bolt Drilling Plan

Fig. 2-4

Circuit Breaker Escutcheon Dimension

Fig. 2-5

Securement of Cable (See caution note for
bracing instruction)

HAZARDOUS VOLTAGE CONDITIONS CAN CAUSE
DEATH OR SEVERE PERSONAL INJURY. MAINTAIN
ORIGINAL ELECTRICAL CLEARANCE AND CREEP-
AGE SPACINGS AT TERMINATIONS.

After the circuit breaker is installed and all connections
are made, check all mounting hardware and terminal
connection hardware for torque loading. Torque values
for line/load terminal lugs are given on the circuit breaker
nameplate and table in Fig. 2-1. Torque mounting screws
to 30-35 Ib-ft. (41-47 Nm).

Re-install load end and line end covers and secure with
pan head screws provided. Torque large screws to 35-45
Ib-in. (4.0-5.0 Nm) and small screws to 24-30 Ib-in
(2.7-3.4 Nm). When prospective fault currents of cabled

UNSUPPORTED CABLES CAN CAUSE MINOR PER-
SONAL INJURY OR EQUIPMENT DAMAGE UNDER
SHORT CIRCUIT CONDITIONS.

WARNING

CAUTION

installations exceed 65kA the conductors are to be

braced in accordance with Fig. 2-5.

40752-093(1)

Effective 5/02

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