1SDA056092R1 ABB E2L1600 PR122/P-LSI 1600 A 4P Fixed Air Circuit Breaker

Why Choose the ABB E2L1600 PR122/P-LSI Air Circuit Breaker?

The ABB E2L1600 PR122/P-LSI, order code 1SDA056092R1, is a high-performance four-pole fixed air circuit breaker (ACB) designed for switching and protection in demanding low-voltage power distribution systems. Part of the ABB SACE Emax E2 series, it combines a rated uninterrupted current of 1600 A with the advanced PR122/P-LSI R1600 electronic overcurrent release.

The PR122/P-LSI release provides long-time, short-time and instantaneous protection, helping safeguard conductors, switchgear and connected equipment against sustained overloads and short-circuit conditions. Its adjustable electronic protection functions support selective coordination in industrial, commercial and infrastructure electrical distribution networks.

This E2L1600 version uses fixed construction with rear flat horizontal terminals and is fitted with four change-over auxiliary contacts plus circuit-breaker open/closed position indication. With a rated operational voltage of 690 V AC and an ultimate short-circuit breaking capacity of 130 kA at 400/415 V AC, it is engineered for switchboards with particularly demanding prospective fault levels.

Key Advantages

• High-performance ABB SACE Emax E2L air circuit breaker.
• 1600 A rated uninterrupted current for high-current power distribution.
• Four-pole configuration for comprehensive switching and isolation.
• Advanced PR122/P-LSI R1600 electronic overcurrent release.
• Long-time, short-time and instantaneous protection against overload and short-circuit conditions.
• High 130 kA Icu and Ics at 400/415 V AC.
• Fixed construction with rear flat horizontal terminals for switchboard integration.
• Four change-over auxiliary contacts support status signalling and control integration.

Key Features

• ABB SACE Emax E2L series.
• 1600 A rated current.
• Four-pole fixed air circuit breaker.
• PR122/P-LSI R1600 electronic overcurrent release.
• LSI protection functions: Long-time, Short-time and Instantaneous.
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 130 kA Icu and Ics at 400/415 V AC.
• 85 kA Icu at 690 V AC.
• Rear flat horizontal main terminals.
• Four change-over auxiliary contacts.
• Open/closed circuit-breaker position indication.
• Optional motor operating mechanism capability.

High-Breaking-Capacity LSI Protection for Critical Distribution

The ABB SACE Emax E2L1600 is designed for low-voltage installations where substantial prospective short-circuit currents require high interruption performance. Its E2L execution provides an ultimate and service short-circuit breaking capacity of 130 kA at 400/415 V AC, making it particularly suitable for main distribution boards, transformer-fed systems and demanding industrial switchgear.

The PR122/P-LSI electronic release combines long-time overload protection, short-time protection for selective fault coordination and instantaneous protection against severe short circuits. Together with fixed rear-horizontal-terminal construction, four auxiliary change-over contacts and open/closed position indication, the E2L1600 provides robust protection and practical integration into suitably designed ABB Emax switchgear.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution systems.
• Manufacturing and process plant switchgear.
• Commercial and infrastructure electrical distribution.
• Transformer secondary protection.
• Generator and standby power installations.
• High-current incoming and feeder protection.
• Installations requiring high breaking capacity and adjustable LSI protection.