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ABB Emax E3 - User Manual

ABB Emax E3
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Emax
Installation, service and maintenance
instructions for low voltage air
circuit-breakers
Installation and
service instructions
1SDH000460R0002 L6555

Table of Contents

Questions and Answers

  • T
    Thomas AguirreAug 8, 2025
    What to do if ABB Emax E3 Power Tool trip times are higher than expected?
    • D
      Donna WilliamsAug 8, 2025
      If the trip times for your ABB Power Tool are higher than expected, consider these potential causes and solutions: * The threshold may be set too high. If so, correct the threshold. * The curve might be too high. If so, correct the curve. * The curve type might be set to "t=k/I2". If so, select curve type "t=k". * The neutral selection could be incorrect. If so, correct the neutral adjustment.
  • R
    Randy FischerAug 14, 2025
    What to do if ABB Emax E3 Power Tool trip times are lower than expected?
    • K
      Katelyn ParsonsAug 14, 2025
      If the trip times for your ABB Power Tool are lower than expected, consider the following potential causes and solutions: * The threshold may be too low. If so, correct the threshold. * The curve might be too low. If so, correct the curve. * The neutral selection could be incorrect. If so, correct the neutral adjustment.
  • J
    jeffrey49Aug 20, 2025
    What to do if ABB Emax E3 Power Tool experiences a rapid trip with I3=Off?
    • E
      emily78Aug 20, 2025
      If your ABB Power Tool experiences a rapid trip with I3=Off, it's likely due to an instantaneous trip (Iinst tripped). This is usually caused by a short-circuit with high current (FN short-circuit with high I).
  • B
    Barbara RoseAug 27, 2025
    What to do if the expected trip does not happen for ABB Emax E3?
    • E
      Elizabeth ObrienAug 27, 2025
      If the expected trip does not happen for your ABB Power Tool, it is possible that the function is OFF. If so, enable the protection function (FN enable protection function).
  • M
    Mark LittleSep 1, 2025
    Why the trip test cannot be run on ABB Power Tool?
    • B
      Brian FernandezSep 1, 2025
      The trip test on your ABB Power Tool may not run due to several reasons: 1. The busbar current is greater than 0. 2. The TC (Temperature Control) is not connected. Check TC connection. 3. The PR030/B unit is not connected. Connect the PR030/B unit.

Summary

4. Installation Procedures

4.1 Installation Room Requirements

Specifies environmental conditions and safety for the installation location.

4.2 Fixed Circuit-Breaker Installation

Provides instructions for securely mounting the fixed circuit-breaker.

4.3 Withdrawable Part Installation

Steps for installing the fixed part of a withdrawable circuit-breaker unit.

5. Electrical Connections

5.1 Power Circuit Connections

Guidelines for connecting the circuit-breaker to the main power circuit.

6. Putting Into Service

6.1 General Procedures

Pre-commissioning checks and essential steps before operation.

7. Instructions for Use

7.1 Operating & Signalling Parts

Identifies front panel controls, indicators, and their functions.

7.2 Closing & Opening Procedures

c) Closing the Circuit-Breaker

Step-by-step guide for closing the circuit-breaker.

d) Opening the Circuit-Breaker

Step-by-step guide for opening the circuit-breaker.

7.3 Racking-In;Out Operation

Racking Positions

a) Disconnected Position

Moving the circuit-breaker to the disconnected state.

b) To Test Isolated Position

Transitioning the circuit-breaker to the test isolated state.

c) To Connected Position

Transitioning the circuit-breaker to the connected state.

d) Reverse Transition

Moving from connected back to test isolated or disconnected.

8. Maintenance Introduction

8.1 Maintenance Warnings

Crucial safety precautions to follow before performing maintenance.

8.2 Maintenance Programme

Overview of maintenance intervals and switch life expectations.

8.3 First Level Maintenance

8.3.2 Checks & General Cleaning

Procedures for cleaning and inspecting the circuit-breaker.

8.3.7 Protection Releases Check

8.4 Second Level Maintenance

8.4.2 General Checks & Cleaning

8.4.7 Checking Contact Wear

8.4.8 Protection Releases Verification

9. Operating Anomaly Measures

10. Accessories

10.1 Electrical Accessories

10.2 Mechanical Locks

Interlock Between Circuit-Breakers

11. Protection Releases - General Notes

11.1 Safety Notes

Crucial safety warnings related to protection release operations.

12. SACE PR121;P Relay

12.1 Relay Identification

12.2 Relay Specifications

12.2 Specifications & Characteristics

12.2.5 Electrical Characteristics

12.3 User Interface

12.3.1 Dip Switch Settings

12.3.2 LED Indicators

12.3.3 Rating Plug Functionality

12.3.4 iTest Button Usage

12.4 Protection Functions

12.4.1 Protection L Details

12.4 Protection Functions Details

12.4.2 Protection S

12.4.5 Neutral Protection

12.4.6 Instantaneous Short-Circuit Protection

12.4.7 Protection Summary Table

12.5 Main Functions

12.5.1 Measurement Function

12.5.2 Self-Monitoring Features

12.6 Commissioning & Settings

12.6.1 Installation & Connections

12.6.3 CS & TC Connection Check

12.7 Parameter & Default Settings

12.8 Troubleshooting

12.8.1 Troubleshooting Table

A table listing common faults, possible causes, and suggested solutions.

12.8.2 Handling Faults

Procedures for responding to relay malfunctions or unexpected trips.

12.9 External Units Overview

12.9.1-12.9.5 Unit Descriptions

13. Overall Dimensions

Fixed Circuit-Breaker Dimensions

Withdrawable Circuit-Breaker Dimensions

14. Circuit Diagrams

WARNING for Circuit Diagrams

Safety warning before consulting circuit diagrams.

Circuit Diagram Captions

Circuit Diagram Symbols

Motor & Release Circuit Diagrams

Auxiliary Circuits & Measuring Module Diagrams

Communication & Signalling Module Diagrams

ABB Emax E3 Specifications

General IconGeneral
BrandABB
ModelEmax E3
CategoryPower Tool
LanguageEnglish

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