Eaton MDS-625 User Manual

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Double-wide Fixed

Standard Frame Fixed

Narrow Frame Fixed

Instructions for Installation, Operation and Maintenance of

Magnum DS, DSX and DSL Low Voltage Power Circuit Breakers

I.B. 2C12060H08 Supersedes I.B. 2C12060H07 dated April 2005

Effective May 2006

IB2C12060H08

For more information visit: www.EatonElectrical.com

www . ElectricalPartManuals . com

Table of Contents

Questions and Answers:

H
Holly SmithAug 7, 2025
What to do if the Eaton MDS-625 Power Tool circuit breaker trips open?
- S
  Stacy JordanAug 7, 2025
  If the Eaton Power Tool circuit breaker trips open, it could be due to several reasons. First, ensure the rating plug is installed and corresponds to the current sensors. If the breaker trips repeatedly due to transient current, allow the breaker and loads to cool before re-closing. Finally, an overload or fault current condition may be present. Use the status and fault indicators to locate and remove the overload or fault.
S
Sarah PerezAug 21, 2025
Why does my Eaton MDS-625 circuit breaker open if the fault trip indicator button is not out?
- D
  David ProctorAug 21, 2025
  If your Eaton Power Tool circuit breaker opens and the fault trip indicator button is not out, several factors could be at play. It might be due to undervoltage release operation; in this case, check and correct the UVR supply voltage to be within 85-110% of the rated voltage. Alternatively, the shunt trip may be operating, so check the control signals to the shunt trip and correct if necessary. If neither of these is the cause, the trip latch may be defective, so inspect its condition and engagement before closing.

Eaton MDS-625 Specifications

General

Brand	Eaton
Model	MDS-625
Category	Power Tool
Language	English

Summary

Introduction and Safety

Safety Practices

Essential safety procedures for installation, operation, and maintenance.

Qualified Personnel

Requirements and qualifications for personnel working on circuit breakers.

Receiving, Handling, and Installation

Unpacking Circuit Breaker

Lifting Circuit Breaker

Installing Drawout Circuit Breaker

Step-by-step guide for installing drawout circuit breakers into cassettes.

Rejection Interlocks

Circuit Breaker Description and Operation

Operating Mechanism

Electronic Tripping System

Overview of the microprocessor-based trip unit, sensors, and actuator.

Accessory Devices

Drawout Circuit Breaker and Cassette

Drawout Cassette

Inspection and Maintenance

General

General guidelines and warnings for inspection and maintenance.

What to Inspect

Detailed inspection points for various breaker components.

Circuit Breaker Modifications and Changes

Current Limiter Replacement (MDSL)

Troubleshooting Common Issues

Troubleshooting Introduction

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