1SDA101780R1 ABB XT7L M 1250 Ekip Touch LSI 1250A 4-Pole Circuit Breaker

Why Choose the ABB XT7L M 1250 Ekip Touch LSI 1SDA101780R1 Circuit Breaker?

The ABB 1SDA101780R1 is a high-performance SACE Tmax XT7L M moulded case circuit breaker designed for protection, switching and isolation in demanding low-voltage power distribution systems. Rated at 1250 A, this four-pole fixed circuit breaker combines ABB's high-breaking-capacity XT7L M platform with an advanced Ekip Touch LSI solid-state electronic protection release.

The Ekip Touch LSI trip unit provides long-time, short-time and instantaneous protection against overload and short-circuit conditions. Its electronic protection settings can be adapted to the electrical installation, with an overload adjustment range of 500–1250 A, short-time delayed short-circuit adjustment of 750–12500 A and instantaneous short-circuit adjustment of 1875–18750 A.

The XT7L M version provides an ultimate short-circuit breaking capacity of 120 kA at 400 V AC. The 1SDA101780R1 is supplied as a four-pole fixed circuit breaker with front terminals and incorporates stored-energy and lever operating mechanisms, making it a robust solution for high-current industrial switchboards and critical power-distribution installations.

Key Advantages

• High-current 1250 A moulded case circuit breaker for demanding low-voltage distribution systems.
• Advanced Ekip Touch LSI electronic trip unit with configurable protection settings.
• Provides long-time, short-time and instantaneous protection.
• 120 kA ultimate short-circuit breaking capacity at 400 V AC for high fault-current installations.
• Four-pole fixed construction with front main-circuit connections.
• Optional motor drive supports integration into remotely operated and automated switchboards.

Key Features

• ABB SACE Tmax XT7L M series.
• 1250 A rated uninterrupted current.
• 4-pole construction.
• Ekip Touch LSI solid-state electronic release.
• Long-time overload protection.
• Short-time delayed short-circuit protection.
• Instantaneous short-circuit protection.
• 500–1250 A overload adjustment range.
• 750–12500 A short-time delayed short-circuit adjustment range.
• 1875–18750 A instantaneous short-circuit adjustment range.
• 120 kA Icu at 400 V AC.
• 690 V rated operational voltage.

Advanced LSI Protection for High-Current Power Distribution

Moulded case circuit breakers such as the ABB Tmax XT7L M protect electrical installations against overload and short-circuit conditions while providing dependable switching and isolation. The Ekip Touch electronic release enables protection thresholds to be configured around the electrical network, supporting effective coordination between upstream and downstream protective devices.

With its 1250 A current rating, 120 kA breaking capacity at 400 V AC and adjustable LSI protection, the 1SDA101780R1 is particularly suited to high-current systems where robust fault interruption and configurable electronic protection are required. Optional motor-drive capability further supports use in remotely controlled and automated power-distribution systems.

Typical Applications

• Industrial low-voltage switchboards and main distribution boards.
• Main incoming and outgoing feeder protection.
• Transformer and generator distribution systems.
• Manufacturing and process-industry electrical installations.
• Commercial buildings and critical infrastructure distribution.
• High-fault-level networks requiring advanced electronic short-circuit protection.