Cutler-Hammer E2 L Manuel d'instructions d'installation

Parcourez en ligne ou téléchargez le pdf Manuel d'instructions d'installation pour {nom_de_la_catégorie} Cutler-Hammer E2 L. Cutler-Hammer E2 L 8 pages. Undervoltage release mechanism (handle reset) with led for e2 l and e2 lm mining circuit breakers

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Cutler-Hammer

Installation Instructions for Undervoltage Release

Mechanism (Handle Reset) with LED for E

Mining Circuit Breakers

CONTACT WITH ENERGIZED EQUIPMENT CAN

RESULT IN DEATH, SEVERE PERSONAL INJURY,

OR SUBSTANTIAL PROPERTY DAMAGE. DO NOT

ATTEMPT TO INSTALL OR PERFORM MAINTE-

NANCE ON EQUIPMENT WHILE IT IS ENERGIZED.

ALWAYS VERIFY THAT NO VOLTAGE IS PRESENT

BEFORE PROCEEDING WITH THE TASK, AND

ALWAYS FOLLOW GENERALLY ACCEPTED SAFE-

TY PROCEDURES.

CUTLER-HAMMER IS NOT LIABLE FOR THE MISAP-

PLICATION OR MISINSTALLATION OF ITS PROD-

UCTS.

The user is cautioned to observe all recommendations,

warnings, and cautions relating to the safety of person-

nel and equipment as well as all general and local

health and safety laws, codes, and procedures.

Figure 1-1 Undervoltage Release Mechanism (Handle

Reset) with LED installed in L-Frame Mining Circuit Breaker

Effective March 1998.

WARNING

The recommendations and information contained herein

are based on Cutler-Hammer experience and judge-

ment, but should not be considered to be all-inclusive or

covering every application or circumstance which may

arise. If any questions arise, contact Cutler-Hammer for

further information or instruction.

1.0 INTRODUCTION

General Information

The undervoltage release mechanism (UVR) (Figure 1-

1) monitors a voltage (typically a line voltage and trips

the circuit breaker when the voltage falls to between 70

and 35 percent of the solenoid coil rating. The UVR

consists of a continuous rated solenoid with a plunger

and reset lever assembled to a plug-in module. The

plug-in module is mounted in slots in the top of the trip

unit and occupies the accessory cavity in the circuit

breaker frame. The reset lever resets the UVR when

normal voltage is restored and the circuit breaker handle

is moved to the resets (extreme OFF) position. With no

voltage applied to the UVR, the circuit breaker contacts

will not touch when a closing operation is attempted.

The UVR is available for 120 VAC. Table 1.1 lists appli-

cations and electrical ratings data for the UVR.

For this publication, the term circuit breaker shall also

include molded case switch and motor circuit protector.

Depending on the model ordered, connections for the

UVR are in one of four forms. The standard wiring con-

figuration is pigtail leads exiting the rear of the base

directly behind the UVR. Optional configurations

include a terminal block mounted on the same side of

the base as the accessory, leads exiting the side of the

base where the accessory is mounted, and leads exiting

the rear of the base on the side opposite the accessory.

The 18-inch long pigtail leads are color coded for identi-

fication; identification labels are provided for pigtail

leads and terminal block points.

This instruction leaflet (IL) gives detailed procedures for

installing the UVR.

I.L. 29C171

L and E