TeSys Giga Series China TeSys Control-Giga ContactorsTeSys Protect-Giga Electronic Overload Relays – Installation Guide

Introduction to TeSys Giga Series

Technical Characteristics
- Dimensions
- Weights
- Thermal Dissipation
- Contactors Technical Characteristics
  - Environmental Characteristics
  - LC1G205–620C Pole Characteristics
  - Control Module Characteristics
- Overload Relays Technical Characteristics
- Contactor Accessory Technical Characteristics
- Electromagnetic Compatibility

Installation
- Contactor Customization
- TeSys Giga Contactor Mounting on Plate
  - Mounting LC1G205-245C Contactors on Plate
  - Mounting LC1G300-620C Contactors on Plate
  - Mounting LC1G620C Contactors on Plate
- TeSys Giga Electronic Overload Relay Mounting on Plate
- TeSys Giga Contactor Mounting on Retrofit Base
  - Installation Procedure
- TeSys Giga Contactor and TeSys Giga Overload Relay Direct Mounting
  - Assembly Procedure
  - IP20 Optional Protection Cover
  - Assembly Installation of LC1G205-245C Contactor and Overload Relay on Plate
  - Assembly Installation of LC1G300-475C Contactor and Overload Relay on Plate
  - Assembly Installation of LC1G620C Contactor and Overload Relay on Plate
- TeSys Giga Contactor Assembly with TeSys Giga Overload Relay Separately Mounted
- Identification with Clip-On Marker Holder

Wiring
- Wiring Precautions
- Power Connections
  - Connection with Bars
    - Bar Installation
  - Connection with Lugs
    - Lug Installation
- Power Connection Accessories
  - Straight Terminal Extensions
  - Edgewise Terminal Extensions
  - L Side Terminal Extensions
  - L Large Terminal Extension
  - L Rear Terminal Extension
  - Spreaders
  - Large Spreaders
    - Installation of Phase Separators
  - Flexible Terminal Extensions
  - Installation of the Power Connection Accessories
  - Bar or Lug Connection
- Control Connections
  - Contactor Wiring Characteristics
  - Overload Relay Wiring Characteristics
  - Conductor Connection
  - Removing the Conductor from the Terminal

Installation of Accessories
- Insulation Accessories
  - Terminal Shrouds
    - Terminal Shroud Preparation
    - Installation of Terminal Shroud with Bars, Lugs or Terminal Extensions
    - Installation of Terminal Shroud with Coupling Bars
  - Phase Separator
    - Installation of Phase Separator on Contactors
    - Installation of Phase Separator on Overload Relays
    - Installation of Phase Separator with Coupling Bars
- Functional Accessories
  - Auxiliary Contact Modules
  - Remote Diagnostic Modbus Module

Applications

Maintenance

Troubleshooting

DOCA0191EN–05

Ground Fault Protection

Overview

The ground-fault protection is used to protect asynchronous motors against ground fault conforming to the IEC 60947-4-1 standard.

The ground-fault protection can be used to protect three-phase IE1, IE2, IE3, and IE4 asynchronous motors.

Ground fault occurs when the insulation drops on the load circuit due to vibration or moisture.

Operation

The overload relay calculates the ground current Ig continuously. When the ground current Ig exceeds the Ir/FLA threshold for more than 10 ms, the overload relay trips.

Settings

The table below shows the position of the rotary switch used to enable or disable the ground-fault protection.

	The ground fault protection is enabled.
	The ground fault protection is disabled.

Manual Reset

The ground fault protection can be reset manually only. For more information, refer to Trip Reset.

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