Larsen & Toubro U-POWER Omega UW-MTX 1.5G User Manual

Copyright © 03/2019 Larsen & Toubro. All Rights Reserved.
Air Circuit Breakers
System of
USERS’
Manual
80 kA
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400 / 440 V
660 / 690 V
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50 kA 3.0 s
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Larsen & Toubro U-POWER Omega UW-MTX 1.5G Specifications

General

Rated Current (In)	1.5 A
Breaking Capacity (Icu)	10 kA
Breaking Capacity (Ics)	7.5 kA
Utilization Category	A
Rated Current	1.5 A
Trip Curve	C
Poles	3
Type	MCB
Breaking Capacity	10 kA
Number of Poles	3
Mounting Type	DIN Rail

Summary

Section 1

Visual Inspection

Inspect carton for damage & verify breaker version and rating on carton.

Unpacking

Step-by-step guide for unpacking fixed and draw-out breakers.

Handling

Instructions for safe handling of fixed and draw-out breakers using equipment.

Storage

Guidelines for storing breakers to maintain condition and prevent damage.

Section 2

Identification

Details on identifying breaker components and rating labels for different models.

Exploring

Explains the various parts and components of the breaker and cradle.

Racking-out

Procedures for safely removing the breaker from its cradle.

Operating

Step-by-step instructions for operating the breaker (ON/OFF).

Technical Data

Comprehensive technical specifications and parameters of the ACB.

Section 3

Mounting & Door Cut-out

Guidelines for mounting breakers in panels and required door cut-out dimensions.

Termination

Details on terminal connections, adaptors, and methods for fixed and draw-out breakers.

Loading in Panel

Step-by-step procedure for loading the breaker into the panel.

Control Circuit Connections

Information on wiring control circuits, SICs, and EPI for breaker operation.

Section 4

Cradle Mounted Accessories

Details on accessories like safety shutters and interlocks mounted on the cradle.

Breaker Mounted Accessories

Information on accessories mounted directly on the breaker, like auxiliary contacts and releases.

Section 5

Identification

Identifies different breaker models (UW-MTX series) and their front panel features.

Protection Characteristics

Graphical representation of overload and short-circuit protection curves for various models.

Section 6

Re-loading in Panel

Procedure for re-loading a breaker into the panel after it has been removed.

Checking ON-OFF Operation

Steps to verify the ON-OFF functionality of the breaker.

Testing (Control Circuit & Interlocks)

Guidance on testing control circuits, interlocks, and accessories.

Configuring P&C Unit

Instructions for configuring the Protection & Control unit settings.

Trip Simulation of P & C Unit

Describes the features of the trip simulation kit for testing P&C units.

ACB's in Connected Position

Steps to ensure the ACB is correctly connected and commissioned.

Securing your Breaker

Features for preventing unauthorized access and ensuring safety through padlocking.

Section 7

Maintenance Schedule & Operations

Routine and specific maintenance tasks, schedules, and references.

Accessories and Spares

Catalog numbers and quantities for various spare parts and accessories.

Section 8

Useful Hints

Troubleshooting guide for common situations and solutions.

Termination - Draw-out Breakers

Bus-bar termination data for draw-out breakers, including sizes and popular options.