1SDA081789R1 ABB E4.2/MT 3200 MP 4-Pole Earth DOWN Earthing Switch

1SDA081789R1 ABB E4.2/MT 3200 MP 4-Pole Earth DOWN Earthing Switch

ABB 1SDA081789R1 is a SACE Emax 2 E4.2/MT 3200 A four-pole withdrawable earthing switch moving part without making capacity, configured for an earth connection from the lower terminals.

SKU: 1SDA081789R1MPN: 1SDA081789R1
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Why Choose the ABB 1SDA081789R1 E4.2/MT 3200 MP 4p Earth DOWN Earthing Switch?

The ABB 1SDA081789R1 is an Emax 2 E4.2/MT 3200 earthing switch moving part designed for controlled earthing in compatible low-voltage switchgear. This specialised four-pole device has a rated continuous current of 3200 A and is configured for an earth connection from the lower terminals.

As part of the ABB SACE Emax 2 platform, the E4.2/MT is an earthing switch without making capacity, intended for applications where a dedicated withdrawable device is required to earth the associated circuit during defined isolation and maintenance procedures. Its E4.2 construction provides compatibility with the corresponding Emax 2 switchgear architecture.

The 1SDA081789R1 combines a four-pole configuration, 3200 A rated continuous current and withdrawable moving-part construction. The Earth DOWN designation identifies the version arranged for earthing from the lower terminals, distinguishing it from the corresponding Earth UP configuration.

Key Advantages

  • Genuine ABB SACE Emax 2 earthing switch for compatible low-voltage switchgear.
  • 3200 A rated continuous current for high-current electrical systems.
  • Four-pole configuration for applications requiring a four-pole earthing arrangement.
  • Earth connection from lower terminals for the specified switchgear configuration.
  • Withdrawable moving-part (MP) construction.
  • Purpose-designed E4.2/MT configuration without making capacity.
  • Supports controlled isolation, servicing and switchgear maintenance procedures.

Key Features

  • ABB SACE Emax 2 E4.2/MT platform.
  • 3200 A rated continuous current.
  • 4-pole construction.
  • MT earthing switch without making capacity.
  • Earth DOWN configuration.
  • Earth connection from the lower terminals.
  • Withdrawable moving part design.
  • Designed for use with the corresponding Emax 2 fixed switchgear part.
  • ABB order code 1SDA081789R1.

Controlled Earthing for Emax 2 Switchgear

Earthing switches provide an intentional connection between electrical conductors and earth as part of defined switchgear isolation and maintenance procedures. The ABB E4.2/MT is a dedicated Emax 2 earthing device without making capacity and is intended to be operated according to the electrical installation design, switchgear interlocking arrangement and applicable operating procedures.

The ABB 1SDA081789R1 is the 3200 A four-pole Earth DOWN version of the E4.2/MT moving part. Its lower-terminal earthing arrangement and withdrawable construction make it suitable for compatible Emax 2 installations where a dedicated four-pole earthing device is required.

Typical Applications

  • Earthing of compatible ABB SACE Emax 2 switchgear circuits.
  • Industrial low-voltage switchboards.
  • High-current electrical distribution systems.
  • Power distribution switchgear maintenance.
  • Electrical isolation and servicing procedures.
  • Four-pole switchgear installations requiring dedicated earthing.
  • Withdrawable switchgear systems requiring lower-terminal earthing.

Technical Specifications

Series SACE Emax 2
ABB order code 1SDA081789R1
Product type Earthing switch
Earthing-switch type MT – without making capacity
Frame E4.2
Rated continuous current 3200 A
Number of poles 4
Earth connection From lower terminals
Configuration Earth DOWN
Construction Withdrawable moving part (MP)
Main-circuit connection Via corresponding fixed part
Product group Emax2 Air Circuit Breaker

Frequently Asked Questions

What is the ABB 1SDA081789R1?

The ABB 1SDA081789R1 is an Emax 2 E4.2/MT 3200 four-pole withdrawable earthing switch moving part configured for an earth connection from the lower terminals.

What is the rated current of the ABB E4.2/MT 1SDA081789R1?

The device has a rated continuous current of 3200 A.

How many poles does the ABB 1SDA081789R1 have?

The 1SDA081789R1 has a four-pole configuration.

What does Earth DOWN mean on the ABB E4.2/MT?

Earth DOWN identifies the configuration in which the earthing connection is made from the lower terminals.

What does MT mean on this ABB Emax 2 device?

The MT designation identifies an Emax 2 earthing switch without making capacity, as distinct from the MTP versions with making capacity.

Is the ABB 1SDA081789R1 a withdrawable device?

Yes. The E4.2/MT 3200 MP is a withdrawable moving-part earthing switch designed for use with the corresponding Emax 2 fixed switchgear part.

Where is the ABB 1SDA081789R1 typically used?

It is used in compatible ABB SACE Emax 2 low-voltage switchgear where a dedicated four-pole earthing device with a lower-terminal earth connection is required for defined isolation and maintenance procedures.

Trusted by Power Distribution Professionals Worldwide

ABB SACE Emax 2 equipment is engineered for demanding low-voltage power distribution and switchgear applications, with dedicated earthing-switch configurations supporting controlled isolation, servicing and maintenance of compatible electrical systems.