1SDA125998R1 ABB E4.3V/MS 3200 3-Pole Withdrawable Switch-Disconnector

Why Choose the ABB 1SDA125998R1 E4.3V/MS 3200 Switch-Disconnector?

The ABB 1SDA125998R1 is a high-performance SACE Emax 3 switch-disconnector moving part designed for high-current low-voltage electrical distribution systems. Configured as an E4.3V/MS 3200 three-pole withdrawable unit, it provides a rated uninterrupted current of 3200 A for dependable switching and isolation duties.

Unlike an Emax 3 circuit breaker equipped with an electronic protection release, the E4.3V/MS is a switch-disconnector. It is designed primarily for switching and isolation within suitably protected electrical systems, making it appropriate where a high-current disconnecting device is required as part of the overall switchgear and protection architecture.

The withdrawable moving-part configuration supports convenient isolation, inspection and maintenance when combined with the corresponding ABB Emax 3 fixed part. With three poles, a 3200 A continuous current rating and a rated operational voltage of 690 V AC, the 1SDA125998R1 provides a robust switching solution for demanding industrial, commercial and infrastructure applications.

Key Advantages

• High-capacity 3200 A switch-disconnector for demanding low-voltage distribution systems.
• Three-pole configuration for three-phase electrical distribution applications.
• Withdrawable moving-part construction supports convenient isolation, inspection and maintenance.
• Rated for operation at 690 V AC.
• E4.3 frame provides a high-current solution within the ABB SACE Emax 3 platform.
• Push-button operation provides straightforward local switching.
• Optional motor operation supports integration into automated switchgear systems.
• Lockable design supports controlled electrical isolation procedures.

Key Features

• ABB SACE Emax 3 series.
• E4.3V/MS 3200 configuration.
• 3200 A rated uninterrupted current.
• 690 V AC rated operational voltage.
• Three-pole configuration.
• Switch-disconnector design.
• Withdrawable moving part.
• Designed for use with the corresponding ABB Emax 3 fixed part.
• Push-button operating mechanism.
• Optional motor-operated mechanism.
• Lockable construction.
• Suitable for distribution-board installation.

Reliable Switching and Isolation for High-Current Distribution

High-current low-voltage installations require dependable devices for switching and electrically isolating circuits during operation and maintenance. The ABB SACE Emax 3 E4.3V/MS platform provides switch-disconnector functionality for these applications, with the 1SDA125998R1 offering a rated uninterrupted current of 3200 A and a rated operational voltage of 690 V AC.

As a switch-disconnector rather than an overcurrent-protective circuit breaker, the E4.3V/MS 3200 is intended to operate as part of a suitably engineered protection system. Its withdrawable moving-part construction allows the switching unit to be separated from the corresponding fixed part, supporting inspection and servicing within high-capacity electrical distribution installations.

Typical Applications

• Main low-voltage switchboards.
• Industrial power distribution systems.
• High-current circuit switching and isolation.
• Data centres and critical power infrastructure.
• Commercial and large-building electrical distribution.
• Manufacturing and process facilities.
• Utility and infrastructure distribution systems.
• Generator and transformer distribution switchgear.