1SDA056407R1 ABB E3H1600 PR123/P-LSIG 1600A 3P Fixed Air Circuit Breaker

Why Choose the ABB E3H1600 PR123/P-LSIG 1600A 3P Fixed Air Circuit Breaker?

The ABB E3H1600 PR123/P-LSIG, order code 1SDA056407R1, is a high-performance SACE Emax air circuit breaker designed for protection and switching in demanding low-voltage electrical distribution systems. This E3H breaker has a rated current of 1600 A, a three-pole configuration and ABB's advanced PR123/P-LSIG electronic overcurrent release.

Designed for fixed installation with rear horizontal terminals, the E3H1600 provides a robust solution for industrial switchboards and power distribution assemblies. Its H short-circuit performance level delivers a rated ultimate short-circuit breaking capacity of 100 kA at 400 V AC and 85 kA at 690 V AC, supporting installations with substantial prospective fault currents.

The PR123/P-LSIG R1600 electronic release provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. Combined with its 1600 A rating, three-pole architecture and 690 V AC rated operational voltage, the 1SDA056407R1 is well suited to main incomers, high-current feeders and critical industrial distribution circuits.

Key Advantages

• High-performance 1600 A SACE Emax air circuit breaker for demanding power distribution.
• Three-pole configuration for three-phase low-voltage electrical systems.
• PR123/P-LSIG electronic overcurrent release provides comprehensive overload, short-circuit and earth-fault protection.
• Fixed installation with rear horizontal terminals for permanent switchboard integration.
• High H-level short-circuit performance with 100 kA Icu at 400 V AC.
• Fitted with four auxiliary change-over contacts and circuit-breaker open/closed position indication.

Key Features

• ABB SACE Emax E3H air circuit breaker.
• 1600 A rated uninterrupted current.
• Three-pole configuration.
• PR123/P-LSIG R1600 electronic overcurrent release.
• LSIG protection functions for long-time, short-time, instantaneous and earth-fault protection.
• Overload release adjustment range of 640–1600 A.
• Instantaneous short-circuit release adjustment range of 2400–24000 A.
• H short-circuit performance level.
• Rated ultimate short-circuit breaking capacity of 100 kA at 400 V AC.
• Rated ultimate short-circuit breaking capacity of 85 kA at 690 V AC.
• Fixed version with rear horizontal terminals.
• Four auxiliary change-over contacts for circuit-breaker status signalling.

Advanced LSIG Protection for Critical Power Distribution

Air circuit breakers such as the ABB SACE Emax E3H1600 protect high-current electrical distribution systems against overload, short-circuit and earth-fault conditions. The PR123/P-LSIG electronic release combines long-time, short-time, instantaneous and ground-fault protection functions, providing comprehensive protection for important low-voltage distribution circuits.

The fixed construction and rear horizontal terminals support permanent integration into suitably designed switchboards, while the breaker's 1600 A rating and H-level short-circuit performance provide robust protection for demanding three-phase networks. Its 100 kA ultimate breaking capacity at 400 V AC makes the E3H1600 particularly suitable for installations with high prospective fault levels.

Typical Applications

• Main incoming protection for industrial low-voltage switchboards.
• High-current three-phase feeder and distribution circuit protection.
• Manufacturing plants and process facilities.
• Commercial and infrastructure power distribution systems.
• Motor control centres and large electrical distribution assemblies.
• Fixed switchgear requiring comprehensive overload, short-circuit and earth-fault protection.