1SDA071166R1 ABB E4.2H 3200 Ekip Touch LSIG 3p FHR Air Circuit Breaker

Why Choose the ABB E4.2H 3200 Ekip Touch LSIG 3p FHR Air Circuit Breaker?

The ABB E4.2H 3200 Ekip Touch LSIG 3p FHR, order code 1SDA071166R1, is a high-performance SACE Emax 2 air circuit breaker (ACB) designed for protection, switching and control of demanding low-voltage power distribution systems. Rated at 3200 A, this three-pole fixed circuit breaker combines the E4.2H frame with ABB's advanced Ekip Touch LSIG solid-state electronic trip unit.

The Ekip Touch LSIG release provides comprehensive long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection. This combination supports selective coordination and comprehensive fault protection, making the breaker suitable for main incomers, high-current feeders and critical distribution systems where continuity and dependable protection are essential.

This configuration is a fixed three-pole breaker fitted with rear horizontal (HR) terminals. The E4.2H platform provides high short-circuit performance, with a 100 kA performance rating for this fixed three-pole electronic ACB range and operation at up to 690 V AC, making the 1SDA071166R1 suitable for demanding industrial and infrastructure switchboards.

Key Advantages

• High-capacity 3200 A SACE Emax 2 air circuit breaker for demanding low-voltage power systems.
• Advanced Ekip Touch LSIG electronic trip unit for comprehensive circuit protection.
• LSIG functionality protects against overload, short-time short circuits, instantaneous short circuits and earth faults.
• 100 kA performance class for demanding high-fault-level installations.
• Rated for low-voltage AC systems up to 690 V AC.
• Short-time withstand capability supports selective coordination in multi-level distribution systems.
• Three-pole fixed configuration with rear horizontal terminals for switchboard integration.
• Fitted with four auxiliary change-over contacts and circuit-breaker open/closed position indication.

Key Features

• ABB SACE Emax 2 E4.2H frame.
• 3200 A rated uninterrupted current.
• Three-pole configuration.
• Fixed mounting version.
• Ekip Touch LSIG solid-state electronic release.
• Long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection.
• 100 kA performance class.
• 690 V AC rated operational voltage.
• Rear horizontal (HR) main terminals.
• Four auxiliary change-over contacts.
• Circuit-breaker open/closed position indication.
• Motor drive can be added as an optional accessory.

Advanced Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 protect high-current low-voltage networks against overloads and short circuits while providing switching and isolation of major electrical circuits. The E4.2H frame combines a substantial 3200 A current rating with high short-circuit performance for main distribution boards, transformer-fed systems and other demanding electrical installations.

The Ekip Touch LSIG trip unit adds short-time and earth-fault protection to long-time overload and instantaneous short-circuit protection. This comprehensive protection arrangement supports selective coordination and allows a correctly engineered distribution system to isolate faults effectively while helping maintain continuity across unaffected sections of the installation.

Typical Applications

• Industrial low-voltage main distribution switchboards.
• Main incomer and high-current feeder protection.
• High-fault-level electrical distribution systems.
• Manufacturing and process-industry installations.
• Data centres and critical electrical infrastructure.
• Transformer secondary distribution systems.
• Generator and utility distribution circuits.
• Systems requiring selective coordination and LSIG earth-fault protection.