Rockwell-automation 140U Q and M-Frame Circuit Breakers Installation o Manual de usuario descargar pdf (Pagina 4)

Page

CAUTION

WHEN ALUMINUM CONDUCTORS ARE USED, THE

APPLICATION

A SUITABLE JOINT COMPOUND

IS RECOMMENDED TO REDUCE THE POSSIBILITY

TERMINAL OVERHEATING. OVERHEATING CAN

CAUSE NUISANCE TRIPPING AND DAMAGE TO THE

CIRCUIT BREAKER.

7. Connect line and load conductors and accessory

leads.2-8.After the circuit breaker is installed, check

all mounting hardware and terminal connecting

hardware for correct torque loading. Torque values

for

line/load terminals are given in Table 2

1 and on

the circuit breaker nameplate.

9. Install line terminal cover on circuit breaker cover

with mounting screws provided. Torque to 20

22 Ib-

in. (2.26

2.49 N.m).

10. When step

type terminals are used, terminal

shields (supplied with terminals) must be

installed on the circuit breaker (Fig. 2-4) and

secured using retainer and screws included

with the terminal shield kit. Warning label

supplied with the kit must be attached to the

circuit breaker cover.

WARNING

HAZARDOUS VOLTAGE CONDITIONS CAN CAUSE

DEATH

SEVERE PERSONAL INJURY. MAINTAIN

AGE SPACINGS AT TERMINATIONS.

ORIGINAL ELECTRICAL CLEARANCE AND CREEP-

Handle Throw Positions

Existing handle mechanisms may be modified

replaced. Consult Allen-Bradleyr for additional

information.

Internal Accessories

Only Q

Frame accessories may be used.

External Accessories

Motor operators must be replaced.

Key interlock mounting brackets must be replaced.

Consult Allen-Bradley for additional information.

Terminal Wire Connectors

Terminals must be replaced, see Table 2

1 for

replacement types.

Other

Unless noted above, all other physical characteristics

are the same.

Handle

Position

Indicator

Color: Red

White

TRIP

International

Symbols

-ON

OFF

Green

OFF

(Reset)

Maonetic

Adfistment PUSH

TRIP

Button

Bunon

Thermal

Places)

Magnetic

Trip Unit

Fig.

Circuit Breaker Manual Controls

40752-078(1) Effective 5/02

Panel Escutcheon Cutout Sizes

Existing cutouts must be modified to agree with

requirements shown in Fig. 2-3.

1 2 3 4 5 6 7 8

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Rockwell-automation 140U Q and M-Frame Circuit Breakers Installation o Manual de usuario Pagina 4

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