1SDA054600R1 ABB T5D400 400 A 4-Pole Fixed Switch-Disconnector

Why Choose the ABB 1SDA054600R1 T5D400 Switch-Disconnector?

The ABB 1SDA054600R1 is a robust Tmax T5D400 switch-disconnector designed for dependable switching and isolation in industrial and commercial low-voltage electrical distribution systems. Part of the ABB SACE Tmax T5 family, this device provides a 400 A rated uninterrupted current in a fixed four-pole configuration with front terminals.

Unlike a moulded case circuit breaker equipped with an overcurrent protection release, the T5D400 is designed primarily for circuit switching and isolation. It provides a defined means of disconnecting a circuit and can be used as a main isolating device where appropriate overload and short-circuit protection is provided elsewhere within the electrical installation.

With a rated uninterrupted current of 400 A, a rated operational voltage of 690 V AC / 750 V DC and a rated short-time withstand current of 6 kA for 1 s, the T5D400 is suitable for substantial industrial power distribution duties. Its four-pole arrangement enables switching of three phases and neutral, while the fixed front-terminal design supports straightforward integration into electrical switchboards and distribution panels.

Key Advantages

• Genuine ABB Tmax T5D400 switch-disconnector.
• 400 A rated uninterrupted current for substantial electrical loads.
• Four-pole configuration suitable for switching three phases and neutral.
• Rated operational voltage of 690 V AC / 750 V DC.
• 6 kA short-time withstand current for 1 s.
• Provides reliable switching and electrical isolation.
• Fixed construction with front terminals for switchboard installation.
• Rated insulation voltage of 1000 V and impulse withstand voltage of 8 kV.

Key Features

• ABB SACE Tmax T5D400 series.
• 400 A rated uninterrupted current.
• Four-pole switching configuration.
• Fixed mounting construction.
• Front terminal connection arrangement.
• 690 V AC / 750 V DC rated operational voltage.
• 1000 V rated insulation voltage.
• 8 kV rated impulse withstand voltage.
• 6 kA rated short-time withstand current for 1 s.
• Designed as a switch-disconnector for switching and isolation duties.
• Manufactured to the IEC 60947 standard family.

Reliable Switching and Isolation for Power Distribution

Switch-disconnectors such as the ABB Tmax T5D400 provide a reliable means of switching and isolating electrical circuits. The device enables a circuit to be disconnected from its supply for operational or maintenance purposes and is designed to provide the isolation function required within correctly engineered electrical distribution systems.

The T5D400 does not provide the same overcurrent protection functions as an MCCB fitted with a protection release. Appropriate protective devices should therefore be incorporated elsewhere in the system to provide the required overload and short-circuit protection. Its 400 A current capability, four-pole configuration and 6 kA for 1 s short-time withstand rating make it a robust isolation solution for demanding power distribution applications.

Typical Applications

• Industrial electrical distribution systems.
• Main and sub-distribution switchboards.
• Three-phase and neutral four-pole circuit isolation.
• Industrial machinery power supplies.
• Manufacturing and process facilities.
• Commercial electrical distribution systems.
• Local equipment and feeder isolation.
• OEM switchgear and electrical panel assemblies.