1SDA126001R1 ABB E4.3V/MS 4000 3-Pole Withdrawable Switch-Disconnector

1SDA126001R1 ABB E4.3V/MS 4000 3-Pole Withdrawable Switch-Disconnector

ABB 1SDA126001R1 is a three-pole 4000 A SACE Emax 3 E4.3V/MS withdrawable switch-disconnector moving part designed for high-current switching and isolation in low-voltage power distribution systems.

SKU: 1SDA126001R1MPN: 1SDA126001R1
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Why Choose the ABB 1SDA126001R1 E4.3V/MS 4000 Emax 3 Switch-Disconnector?

The ABB 1SDA126001R1, designated E4.3V/MS 4000 3p WMP, is a high-current SACE Emax 3 switch-disconnector moving part designed for switching and isolation duties in demanding low-voltage power distribution systems. This E4.3V/MS configuration combines a 4000 A rated current with a robust three-pole withdrawable construction.

As an MS switch-disconnector, the device is intended primarily for circuit switching and electrical isolation rather than integral overcurrent protection. It is therefore suited to distribution architectures where the necessary overload and short-circuit protection is provided by other protective devices within the electrical system.

The ABB 1SDA126001R1 uses the E4.3 frame with the V performance level and is supplied as a three-pole withdrawable moving part for use with the appropriate Emax 3 fixed part. Its withdrawable construction facilitates isolation and maintenance in high-current switchboards while maintaining the flexibility required by critical power-distribution installations.

Key Advantages

  • High-current ABB SACE Emax 3 switch-disconnector for low-voltage distribution systems.
  • 4000 A rated current for demanding power-distribution applications.
  • Three-pole configuration for three-phase electrical systems.
  • Withdrawable moving-part construction supports convenient isolation and maintenance.
  • V performance level within the Emax 3 E4.3 platform.
  • Designed specifically for high-current switching and circuit isolation duties.
  • Suitable for switchboards where overcurrent protection is provided separately.
  • ABB Emax 3 architecture supports integration into modern industrial and infrastructure switchgear.

Key Features

  • ABB SACE Emax 3 E4.3 platform.
  • E4.3V/MS switch-disconnector configuration.
  • 4000 A rated current.
  • Three-pole construction.
  • V performance level.
  • Withdrawable moving part (WMP).
  • Designed for switching and electrical isolation.
  • No integral electronic overcurrent trip unit in the MS configuration.
  • Designed for use with the appropriate Emax 3 fixed part.
  • Suitable for high-current low-voltage switchgear assemblies.

Reliable High-Current Switching and Isolation

Switch-disconnectors provide a defined means of switching and isolating electrical circuits without incorporating the complete overcurrent-protection functionality of an air circuit breaker equipped with an electronic trip unit. This makes the E4.3V/MS suitable for distribution systems where protective functions are implemented separately but dependable high-current switching and isolation remain essential.

The withdrawable Emax 3 construction allows the moving part to be isolated from the associated fixed part, supporting maintenance and operational flexibility within compatible switchgear. With its 4000 A rating and three-pole configuration, the 1SDA126001R1 is particularly suited to major industrial and infrastructure distribution circuits.

Typical Applications

  • Low-voltage main distribution switchboards.
  • Industrial high-current power distribution systems.
  • Main circuit switching and electrical isolation.
  • Bus-section and bus-coupler applications.
  • Commercial and infrastructure electrical installations.
  • Switchgear assemblies with separate overcurrent protection.

Technical Specifications

Product group Emax 3
Series SACE Emax 3 E4.3
ABB order code 1SDA126001R1
Product type Switch-disconnector moving part
Frame E4.3
Performance level V
Rated current 4000 A
Number of poles 3
Configuration MS switch-disconnector
Overcurrent trip unit Not fitted
Execution Withdrawable moving part (WMP)
Primary function Switching and electrical isolation
Application Low-voltage power distribution

Frequently Asked Questions

What is the ABB 1SDA126001R1 used for?

The ABB 1SDA126001R1 is an Emax 3 switch-disconnector moving part designed for high-current switching and electrical isolation in low-voltage power distribution systems.

What is the rated current of the ABB E4.3V/MS 4000?

The ABB E4.3V/MS configuration has a rated current of 4000 A.

How many poles does the ABB 1SDA126001R1 have?

The ABB 1SDA126001R1 is a three-pole switch-disconnector moving part for compatible three-phase power-distribution systems.

Does the ABB E4.3V/MS 4000 include an electronic trip unit?

No. The MS configuration is a switch-disconnector intended primarily for switching and isolation rather than integral overcurrent protection, so appropriate circuit protection is provided elsewhere in the electrical system.

Is the ABB 1SDA126001R1 fixed or withdrawable?

The ABB 1SDA126001R1 is a three-pole withdrawable moving part (WMP) designed for use with the appropriate ABB SACE Emax 3 fixed part.

Trusted ABB Power Distribution Technology

ABB SACE Emax 3 switching devices combine robust high-current construction with flexible switchgear integration to provide dependable switching and isolation for demanding low-voltage industrial and infrastructure power-distribution systems.