1SDA068204R1 ABB XT4 W FP 3p EF Withdrawable Circuit Breaker Fixed Part

Why Choose the ABB XT4 W FP 3p EF Fixed Part?

The ABB 1SDA068204R1 XT4 W FP 3p EF is a three-pole fixed part for withdrawable ABB SACE Tmax XT4 moulded case circuit breakers. It forms the stationary section of a withdrawable XT4 installation, providing the permanent electrical and mechanical interface required for a compatible breaker and withdrawable conversion assembly.

Designed for the 250 A XT4 frame, the fixed part has a rated uninterrupted current of 250 A and supports rated operational voltages up to 690 V AC and 500 V DC. The EF configuration uses extended front terminals, providing accessible front-facing power connections at the top and bottom of the fixed base for practical integration into low-voltage switchboards.

The withdrawable arrangement enables the compatible XT4 breaker assembly to be removed from its fixed section while the permanent switchboard-side connections remain installed. With three poles, a rated insulation voltage of 1000 V and an impulse withstand voltage of 8 kV, the 1SDA068204R1 provides a robust foundation for maintainable industrial and commercial power-distribution systems.

Key Advantages

• Genuine ABB SACE Tmax XT4 withdrawable fixed part.
• 250 A rated uninterrupted current for compatible XT4 installations.
• Three-pole configuration for three-phase electrical distribution systems.
• Extended front terminals provide accessible main-circuit connections from the front of the assembly.
• Withdrawable construction supports efficient circuit breaker inspection, servicing and replacement.
• Permanent switchboard-side connections can remain installed when the compatible breaker assembly is withdrawn.
• Supports rated operational voltages up to 690 V AC and 500 V DC.
• Modular Tmax XT architecture supports flexible and serviceable switchboard designs.

Key Features

• ABB SACE Tmax XT4 accessory.
• XT4 W FP 3p EF configuration.
• W: withdrawable execution.
• FP: fixed part.
• 3p: three-pole configuration.
• EF: extended front terminals.
• 250 A rated uninterrupted current.
• 690 V AC / 500 V DC rated operational voltage.
• 1000 V rated insulation voltage.
• 8 kV rated impulse withstand voltage.
• 50 / 60 Hz rated frequency.
• Designed for compatible withdrawable ABB SACE Tmax XT4 circuit breaker assemblies.

Flexible Withdrawable Connection for Tmax XT4 Circuit Breakers

The ABB XT4 W FP fixed part forms the stationary section of a withdrawable Tmax XT4 circuit breaker installation. When installed in the switchboard, it provides the fixed interface for the compatible breaker and withdrawable conversion assembly. This arrangement is particularly useful where maintainability is important, as the breaker assembly can be removed without dismantling the permanent switchboard-side main connections.

The EF extended front terminal arrangement provides front-accessible power connections at the top and bottom of the base, making the 1SDA068204R1 suitable for switchboard layouts requiring convenient conductor or busbar access. The fixed part itself is not a complete circuit breaker and does not independently provide overcurrent protection; the protection and breaking characteristics depend on the compatible Tmax XT4 circuit breaker and trip unit used in the completed withdrawable assembly.

Typical Applications

• ABB SACE Tmax XT4 withdrawable circuit breaker assemblies.
• Industrial low-voltage switchboards.
• Main and sub-distribution panels.
• Three-phase electrical distribution systems.
• Manufacturing and production facilities.
• Commercial and infrastructure distribution boards.
• Machinery and automation power panels.
• Switchboards requiring removable breakers with permanent fixed-side connections.