1SDA100245R1 ABB XT4H 250 Ekip Dip LIG In=250A 3p F F MCCB

Why Choose the ABB XT4H 250 Ekip Dip LIG In=250A 3p F F 1SDA100245R1?

The ABB 1SDA100245R1 is a high-performance Tmax XT4H moulded case circuit breaker (MCCB) designed for dependable protection of low-voltage AC electrical distribution systems. Supplied as a three-pole circuit breaker with an Ekip Dip LIG electronic trip unit, it combines a 250 A rated current with configurable electronic protection for demanding industrial, commercial and infrastructure applications.

Part of the ABB SACE Tmax XT series, the XT4H 250 uses Ekip Dip LIG protection to provide long-time, instantaneous and ground-fault protection. This combination helps protect electrical circuits against sustained overloads, severe short circuits and earth faults while providing an electronic protection platform suitable for coordinated low-voltage distribution systems.

The 1SDA100245R1 is configured as a fixed three-pole breaker with front terminals. The XT4H designation identifies ABB's H short-circuit performance level, providing a rated ultimate short-circuit breaking capacity of 70 kA at 415 V AC. With a 250 A rating and compact XT4 frame, it is particularly suited to switchboards and distribution systems where high fault-current capability is required.

Key Advantages

• Complete ABB Tmax XT4H 250 moulded case circuit breaker for low-voltage power distribution.
• 250 A Ekip Dip electronic trip unit for configurable circuit protection.
• LIG protection functions provide long-time, instantaneous and ground-fault protection.
• 70 kA rated ultimate breaking capacity at 415 V AC for installations with demanding prospective fault levels.
• Three-pole fixed configuration suited to three-phase AC distribution systems.
• Front terminals support straightforward connection within switchboards and distribution panels.

Key Features

• ABB SACE Tmax XT4H 250 circuit breaker.
• 250 A rated current.
• Three-pole configuration.
• Ekip Dip LIG electronic trip unit.
• LIG protection: long-time, instantaneous and ground-fault functions.
• 70 kA rated ultimate short-circuit breaking capacity at 415 V AC.
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 8 kV rated impulse withstand voltage.
• Fixed mounting with front terminals.

LIG Electronic Protection for High-Performance Distribution

The Ekip Dip LIG electronic trip unit provides three principal protection functions. Long-time protection responds to sustained overload conditions, instantaneous protection provides rapid interruption during severe short circuits, and ground-fault protection detects earth-fault conditions. This combination makes LIG protection particularly useful where overload, high-level short-circuit and ground-fault protection are required without a separate short-time protection function.

The XT4H performance level further enhances the capabilities of the 1SDA100245R1. Its rated ultimate short-circuit breaking capacity of 70 kA at 415 V AC enables the breaker to be applied in distribution systems with substantial prospective fault currents, while the compact XT4 frame helps minimise switchboard space requirements.

Typical Applications

• Industrial low-voltage switchboards.
• Main and sub-distribution panels.
• Three-phase AC electrical distribution systems.
• Commercial and infrastructure electrical installations.
• Manufacturing and process industry power systems.
• Feeder and distribution circuit protection.