1SDA101908R1 ABB XT7D 1600 3-Pole Fixed Switch-Disconnector

Why Choose the ABB XT7D 1600 1SDA101908R1 Switch-Disconnector?

The ABB 1SDA101908R1 is a SACE Tmax XT7D 1600 switch-disconnector designed for dependable switching and isolation of high-current low-voltage circuits. Rated at 1600 A, this three-pole device uses the proven XT7 platform and provides a robust solution for main isolation duties in industrial, commercial and infrastructure electrical distribution systems.

Unlike a protective circuit breaker equipped with a thermal-magnetic or electronic trip release, the XT7D is configured as a switch-disconnector. Its primary function is controlled switching and circuit isolation, making it suitable for installations where overcurrent protection is provided by separate upstream or downstream protective equipment.

The 1SDA101908R1 is supplied in a fixed three-pole configuration with front terminals and a lever operating mechanism. It carries 1600 A in AC-22A and AC-23A utilisation categories at 415/440 V AC and 690 V AC, while a rated short-time withstand current of 20 kA for 1 s supports demanding high-current distribution applications.

Key Advantages

• High-current 1600 A switch-disconnector for demanding low-voltage installations.
• Provides dependable switching and isolation of electrical circuits.
• Three-pole construction for three-phase power distribution systems.
• Rated for 1600 A AC-22A and AC-23A duty at both 415/440 V AC and 690 V AC.
• 20 kA short-time withstand current for 1 s supports high-current distribution applications.
• Fixed installation with front terminals and lever operation simplifies integration into switchboards and distribution assemblies.

Key Features

• ABB SACE Tmax XT7D series.
• 1600 A rated uninterrupted current.
• 3-pole construction.
• Switch-disconnector / moulded case switch configuration.
• Fixed installation.
• Front terminal connections.
• Lever operating mechanism.
• Rated operational voltage up to 690 V AC.
• Rated insulation voltage of 1000 V.
• Rated impulse withstand voltage of 8 kV.
• Rated short-time withstand current of 20 kA.
• Optional motor drive capability.

Reliable High-Current Switching and Isolation

The ABB XT7D 1600 is designed for applications where dependable circuit switching and isolation are required without an integrated overcurrent protection release. Its 1600 A current rating and AC-22A and AC-23A utilisation capabilities make it suitable for substantial electrical loads and main distribution duties, while the isolating function supports safe separation of circuits during maintenance and operational procedures.

With its 20 kA short-time withstand capability, 1000 V insulation rating, fixed construction and robust lever operating mechanism, the 1SDA101908R1 provides a durable isolation solution for demanding electrical installations. Its XT7 platform also supports a broad ecosystem of ABB accessories, including optional motorised operation where remote switching is required.

Typical Applications

• Main switch and isolation duties in low-voltage switchboards.
• Industrial power distribution systems.
• Main distribution boards and sub-distribution assemblies.
• Transformer and generator distribution circuits.
• Manufacturing and process-industry installations.
• Commercial and infrastructure electrical systems.
• High-current circuits where overcurrent protection is provided separately.