1SDA070976R1 ABB E2.2H 1250 Ekip Touch LSIG 3p F HR Air Circuit Breaker

Why Choose the ABB E2.2H 1250 Ekip Touch LSIG 3p F HR Air Circuit Breaker?

The ABB 1SDA070976R1, designated E2.2H 1250 Ekip Touch LSIG 3p F HR, is a high-performance three-pole air circuit breaker (ACB) designed for advanced switching, protection and monitoring in demanding low-voltage power distribution systems. As part of the ABB SACE Emax 2 series, it combines a 1250 A rated uninterrupted current with the Ekip Touch LSIG electronic trip unit for comprehensive overload, short-circuit and earth-fault protection.

The E2.2H is engineered for industrial, commercial, infrastructure and critical-power installations where very high breaking performance, selectivity and advanced electronic protection are required. Its Ekip Touch LSIG release provides long-time overload (L), short-time selective short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection, while the Ekip Touch interface provides convenient access to protection settings, measurements and operating information.

With a rated uninterrupted current of 1250 A, rated operational voltage up to 690 V AC and rated ultimate short-circuit breaking capacity of 100 kA at 400–440 V AC, the 1SDA070976R1 provides robust protection for high-fault-level electrical networks. This version is a fixed, three-pole circuit breaker with horizontal rear terminals, making it suitable for permanent integration into low-voltage switchboards and switchgear assemblies.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage power distribution.
• 1250 A rated uninterrupted current for high-current industrial and commercial installations.
• 100 kA Icu at 400–440 V AC provides exceptional short-circuit breaking performance.
• 85 kA Icu at 500–690 V AC supports demanding higher-voltage distribution systems.
• Ekip Touch LSIG electronic trip unit provides comprehensive overload, selective short-circuit, instantaneous short-circuit and earth-fault protection.
• Adjustable protection settings support effective coordination with upstream and downstream protective devices.
• Ekip Touch interface provides convenient configuration, measurement and monitoring capabilities.
• Expandable Ekip architecture supports compatible communication, signalling and power-management functions.
• Fixed three-pole construction with horizontal rear terminals for switchboard installation.

Key Features

• ABB SACE Emax 2 E2.2H series.
• 1250 A rated uninterrupted current (Iu).
• Three-pole configuration.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 50/60 Hz operating frequency.
• 100 kA rated ultimate short-circuit breaking capacity (Icu) at 400–440 V AC.
• 85 kA rated ultimate short-circuit breaking capacity (Icu) at 500–690 V AC.
• Ekip Touch LSIG electronic protection release.
• Long-time overload (L) protection.
• Short-time selective short-circuit (S) protection.
• Instantaneous short-circuit (I) protection.
• Integrated earth-fault (G) protection.
• 500–1250 A long-time overload protection setting range.
• 750–12500 A short-time selective protection setting range.
• 1875–18750 A instantaneous short-circuit protection setting range.
• 125–1250 A earth-fault protection setting range.
• Fixed installation with horizontal rear terminals.

Advanced Selective Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 E2.2H provide switching, isolation and protection for high-current low-voltage electrical systems. The high-performance E2.2H frame is particularly suited to installations with substantial prospective fault currents, providing up to 100 kA short-circuit breaking capacity at 400–440 V AC while supporting selective coordination across complex electrical distribution networks.

The Ekip Touch LSIG electronic trip unit combines long-time overload, short-time selective short-circuit, instantaneous short-circuit and earth-fault protection with advanced configuration and monitoring capabilities. Adjustable protection thresholds allow the breaker to be coordinated with the requirements of the electrical installation, while the modular ABB Ekip platform supports compatible communication, signalling and power-management functionality.

Typical Applications

• Main low-voltage electrical distribution boards.
• Industrial switchboards and switchgear assemblies.
• Manufacturing and process plants.
• Commercial building power distribution.
• Data centres and critical power infrastructure.
• Transformer secondary distribution systems.
• High-fault-level incoming supply protection.
• Feeder protection requiring selective coordination.
• Energy management and industrial automation systems.