1SDA071520R1 ABB Emax 2 E1.2N 1600A Ekip G Hi-Touch LSIG 4P Air Circuit Breaker

Why Choose the ABB 1SDA071520R1 Emax 2 Air Circuit Breaker?

The ABB 1SDA071520R1 is a high-performance SACE Emax 2 E1.2N air circuit breaker (ACB) designed for advanced protection, monitoring and control of low-voltage generator and electrical distribution systems. Rated at 1600 A, this fixed four-pole circuit breaker combines ABB’s compact E1.2N frame with the advanced Ekip G Hi-Touch LSIG electronic trip unit for comprehensive overload, short-circuit, ground-fault and generator-oriented protection.

As part of the ABB SACE Emax 2 series, the E1.2N combines high short-circuit performance with sophisticated protection and power-management capabilities. The Ekip G Hi-Touch LSIG release provides long-time, short-time, instantaneous and ground-fault protection together with specialised generator protection functions, advanced measurement capabilities and integrated power-quality analysis.

With a rated uninterrupted current of 1600 A, rated operational voltage of 690 V AC and rated ultimate short-circuit breaking capacity of 66 kA at 400 V AC, the 1SDA071520R1 provides robust fault protection for demanding low-voltage installations. This version features a fixed four-pole configuration with front terminals, four auxiliary change-over contacts and open/closed circuit-breaker position indication.

Key Advantages

• High-current 1600 A air circuit breaker for generator and low-voltage distribution applications.
• 66 kA ultimate short-circuit breaking capacity at 400 V AC.
• 50 kA rated short-time withstand current for 1 s supports effective selectivity and protection coordination.
• Advanced Ekip G Hi-Touch LSIG electronic trip unit with generator-oriented protection functionality.
• LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
• Integrated advanced measurement capabilities support detailed electrical system supervision.
• Integrated Network Analyzer functionality supports real-time power-quality monitoring.
• Four-pole fixed configuration with front terminals supports efficient integration into generator and distribution switchboards.

Key Features

• ABB SACE Emax 2 E1.2N air circuit breaker.
• 1600 A rated uninterrupted current.
• 690 V AC rated operational voltage.
• 66 kA Icu at 400 V AC.
• 50 kA Icw for 1 s.
• Ekip G Hi-Touch LSIG solid-state electronic release.
• Long-time overload, short-time delayed, instantaneous short-circuit and ground-fault protection.
• Generator-oriented protection functions for demanding generating-set applications.
• Adjustable overload protection from 640–1600 A.
• Adjustable short-time delayed short-circuit protection from 960–16,000 A.
• Adjustable instantaneous short-circuit protection from 2400–24,000 A.
• Integrated Network Analyzer for real-time power-quality monitoring.
• Advanced Hi-Touch interface for protection configuration, measurement and monitoring.
• Fixed four-pole construction.
• Front terminals for main circuit connections.
• Four change-over auxiliary contacts fitted as standard.
• Open/closed circuit-breaker position indication.
• Optional motor operating mechanism for remote operation.

Advanced Generator and Power Distribution Protection

Air circuit breakers such as the ABB SACE Emax 2 E1.2N protect critical low-voltage circuits against damaging overload, short-circuit and ground-fault conditions. The 1SDA071520R1 combines a 1600 A continuous-current rating with 66 kA ultimate short-circuit breaking capability at 400 V AC and 50 kA short-time withstand capability for 1 s, making it suitable for demanding generator and high-current distribution systems.

The Ekip G Hi-Touch LSIG trip unit extends conventional LSIG protection with functionality developed specifically for generator applications. Advanced measurement and Network Analyzer capabilities provide detailed supervision of electrical parameters and power quality, while the Emax 2 platform supports integration with modern automation, energy-management and intelligent power-distribution architectures.

Typical Applications

• Generator protection and generator switchboards.
• Emergency and standby generating systems.
• Main incoming protection for low-voltage switchboards.
• Industrial electrical distribution systems.
• Transformer and generator protection.
• Manufacturing and process facilities.
• Data centres and critical-power installations.
• Infrastructure and intelligent low-voltage distribution systems.