1SDA100900R1 ABB XT7H 1250 Ekip Dip LSIG 1250 A 3-Pole Circuit Breaker

Why Choose the ABB XT7H 1250 Ekip Dip LSIG 1SDA100900R1 Circuit Breaker?

The ABB XT7H 1250 Ekip Dip LSIG 1SDA100900R1 is a high-performance moulded-case circuit breaker (MCCB) designed for reliable protection and switching in high-current low-voltage electrical distribution systems. As part of the advanced ABB SACE Tmax XT series, this XT7 circuit breaker combines a 1250 A current rating with electronic protection and high short-circuit interruption capability for demanding industrial, commercial and infrastructure installations.

Equipped with an Ekip Dip LSIG solid-state electronic trip unit, the breaker provides long-time, short-time, instantaneous and ground-fault protection. This comprehensive protection architecture helps safeguard conductors, switchboards and connected electrical equipment against overloads, short circuits and earth-fault conditions while supporting effective protection coordination throughout the distribution system.

With a rated current of 1250 A, a three-pole configuration and an XT7H 70 kA interruption class, the 1SDA100900R1 is supplied as a fixed circuit breaker with front terminals and a lever operating mechanism. Its combination of high breaking performance, electronic LSIG protection and robust ABB Tmax XT construction makes it suitable for major distribution feeders and high-power switchboard applications.

Key Advantages

• High-performance ABB SACE Tmax XT moulded-case circuit breaker.
• 1250 A rated current for high-current low-voltage distribution systems.
• Ekip Dip LSIG electronic trip unit for comprehensive circuit protection.
• Long-time, short-time, instantaneous and ground-fault protection functions.
• XT7H 70 kA interruption class for demanding electrical installations.
• Three-pole fixed configuration for three-phase power-distribution networks.
• Front terminals simplify integration into switchboards and distribution assemblies.
• Electronic protection supports accurate coordination and dependable continuity of service.

Key Features

• ABB SACE Tmax XT series.
• XT7 frame size.
• XT7H high-breaking-capacity performance class.
• 1250 A rated current.
• 3-pole configuration.
• Ekip Dip LSIG solid-state electronic release.
• Long-time, short-time, instantaneous and ground-fault protection.
• 70 kA interruption class.
• Fixed circuit-breaker execution.
• Front terminal connection arrangement.
• Lever operating mechanism.
• Designed for AC low-voltage power distribution.

High-Performance Protection for Power Distribution

Moulded-case circuit breakers such as the ABB Tmax XT7 protect electrical distribution systems by automatically interrupting current when abnormal operating conditions occur. The electronic trip unit monitors the circuit and initiates disconnection according to configured protection thresholds, helping prevent damage to conductors, switchgear and connected electrical equipment.

The Ekip Dip LSIG release combines overload, selective short-circuit, instantaneous short-circuit and ground-fault protection in a single electronic trip unit. Together with the XT7H high-breaking-capacity platform, this makes the 1SDA100900R1 particularly suitable for coordinated industrial distribution networks where high fault levels, accurate protection and continuity of service are important.

Typical Applications

• Main and feeder protection in low-voltage switchboards.
• Industrial power distribution systems.
• Commercial and infrastructure electrical installations.
• Transformer and distribution feeder protection.
• Generator and plant electrical distribution systems.
• Motor control centres and industrial switchgear assemblies.
• High-current production machinery and process plants.