GE Industrial Solutions Spectra K-Frame MCCB with microEntelliGuard trip unit User Manual

Page 4

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Instructions

Equipment

Single Branch

Series

AMC3KMFP

Series

class 1 and 2

AMC3KMFP

800 A

SK85PK

1200A

SK125PK

– AV3, AV5

Contact Factory


Table 6. Equipment Mounting Hardware Kits

WARNING: Danger of electrical shock or injury. Turn
OFF the power ahead of equipment before installing
this device or removing any other device.

IMPORTANT: Danger de choc électrique ou de blessure.
Couper l’alimentation entrant dans l’appareil avant de
monter celui-ci ou de démonter d’autres appareils.


For individual front panel mounting:

1. Drill and tap all mounting holes and make any

necessary front-panel escutcheon cutouts, as
shown in Figure 1.

Figure 1. Mounting Hole and Escutcheon Cutout Pattern in/(mm)


2. Mount the breaker with the hardware described in

Table 5, following the instructions supplied with the kit.

Catalog Number

Application

Kit Description

SKMSK1

Mounting plate with

tapped holes

Four 5/16-18x 1-1/4

screws and lock

washers

SKMSK2

Mounting plate with

clearance holes

Four 5/16-18x 1-3/4

screws, nuts, and lock

washers

Table 5. Breaker Mounting Screw Kits


For GE switchboard and panelboard mounting:

Install the breaker into the equipment according to the
instructions supplied with the equipment . Available
mounting hardware kits are listed in Table 6.



For individual mounting in a GE enclosure:
Install the breaker according to the instructions
supplied with the enclosure. Available enclosures
are listed in Table 7 (refer to the BuyLog for other
accessories and/or any enclosure limitations).

Table 7. Enclosures

Enclosure Type (1)

Catalog No.

NEMA 1 (indoor)

TK4V1200F

TK4V1200S

NEMA 3R (outdoor)

TK4V1200R

NEMA 12 (oil-tight

and dust-tight)

SG1200J

Setup and Adjustment

The Spectra

®

RMS microEntelliGuard

TM

trip units are

digital, rms sensing, electronic trip units with an LCD
and keypad for viewing and/or changing the various
function settings. Refer to User’s Manual GEH-702
for detailed information concerning the operation,
adjustment, and setting of the breaker trip unit .

You should record the overcurrent protection and
protective relay set points for future reference.


NOTE: Trip units as received may have settings that are
undesirable for the specific application. Ensure that
settings are appropriately adjusted before energizing
the breaker.


Operation

The circuit breaker status is indicated by ON/OFF
markings, universal I/O symbols, and an indicator
window that shows red for ON, yellow for TRIP, and
green for OFF. The corresponding handle positions are
illustrated in Figure 2. To close the breaker from the OFF

position, move the handle to the ON position. To close the

breaker from the TRIP position, first move the handle to
the OFF (reset) position, and then back to the ON position.

A Push-To-Trip button is provided for convenience in
testing the mechanical operation of the breaker.

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