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Steps 3 and 4, 48 and 78a precharge contactor replacement – Rockwell Automation 1336R REGEN 48,78,180A Precharge Contactor Repl. User Manual

Page 2

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1336 REGEN Precharge Contactor Replacement

2

1336 REGEN-5.14 May, 1998

13

L3

L2

L1

R1

S1

T1

14

R

S

T PE PE

S1

CAT 1336R-VB048PRE-AN

SER A

38.4

AC INPUT

K W

VOLTS

A

PH

HZ

AC OUTPUT

DC OUTPUT

REFER TO USER MANUAL FOR
INSTALLATION ISNTRUCTIONS

48.2

38.4

460

48.2 3

50/60

3

50/60

460

ALLEN-BRADLEY

MADE IN U.S.A.

UL

®

LIST

ED 966X

IN D

C O N T E

Q

UL

®

LIST

ED 966X

IN D

C O N T E

Q

C

®

!

DANGER

RISK OF SHOCK

REPLACE AFTER

SERVICING

L3

13

A1

A2

14

L2

L1

R1

S1

T1

S1

Steps 3 and 4

Mounting
Screw

Aux Contact
Leads 13 ,14

AC Coil Leads A1 ,A2

Mounting

Screw

Mounting
Screw

Mounting

Screw

1.

Remove and lock-out all incoming power to the 1336 REGEN Line
Regeneration Package.

2.

Remove the Precharge Unit front cover. Measure the voltage at input
power terminals R1–S1–T1 and terminal block TB1 with a voltmeter to
ensure that no voltage is present.

3.

Disconnect all leads at the contactor and remove the (4) mounting
screws.

4.

Install the new contactor.

Torque the (4) contactor mounting screws to 2.6-4.1 N-m (23-36 lb.-in.).
Torque L1-L2-L3 and R1-S1-T1 to 4 N-m (35 lb.-in.).
Torque A1-A2 and 13-14 to 2.6-4.1 N-m (23-36 lb.-in.).

48 and 78A
Precharge Contactor
Replacement

!

ATTENTION:

Replace any guards or shields previously

removed before reapplying power to the 1336 REGEN Line
Regeneration Package. Failure to replace guards or shields
may result in death or serious injury.

5.

Reinstall the Precharge Unit front cover.