1SDA073143R1 ABB E4.2H 3200 Ekip Dip LSIG 4p WMP Air Circuit Breaker 3200 A

Why Choose the ABB E4.2H 3200 Ekip Dip LSIG 4p WMP Air Circuit Breaker?

The ABB E4.2H 3200 Ekip Dip LSIG 4p WMP, order code 1SDA073143R1, is a high-performance SACE Emax 2 air circuit breaker designed for protection and switching in demanding low-voltage electrical distribution systems. This four-pole withdrawable moving part combines a rated continuous current of 3200 A with the dependable Ekip Dip LSIG solid-state electronic trip unit.

The Ekip Dip LSIG release provides comprehensive long-time, short-time, instantaneous and earth-fault protection. Protection settings are adjustable using DIP switches, allowing the breaker to be configured for overload, selective short-circuit, instantaneous short-circuit and ground-fault protection while maintaining straightforward commissioning and operation.

The E4.2H performance level provides an ultimate short-circuit breaking capacity of 100 kA at 400–440 V AC and 85 kA at 500–690 V AC. Its four-pole withdrawable construction, high fault-interruption capability and adjustable LSIG protection make it particularly suitable for high-current industrial, commercial, infrastructure and critical power-distribution switchboards.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage distribution systems.
• 3200 A rated continuous current for high-current installations.
• Four-pole configuration for comprehensive circuit switching.
• Reliable Ekip Dip LSIG electronic trip unit.
• LSIG functionality provides long-time, short-time, instantaneous and earth-fault protection.
• 100 kA ultimate short-circuit breaking capacity at 400–440 V AC.
• Adjustable overload and short-circuit protection supports effective system coordination.
• Withdrawable moving-part design facilitates isolation, inspection and maintenance.

Key Features

• ABB SACE Emax 2 E4.2H series.
• 3200 A rated continuous current.
• Four-pole air circuit breaker.
• Ekip Dip electronic trip unit.
• LSIG protection functions for comprehensive circuit protection.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 100 kA Icu at 400–440 V AC.
• 85 kA Icu at 500–690 V AC.
• Adjustable overload protection from 1280–3200 A.
• Adjustable short-time delayed short-circuit protection from 1920–32000 A.
• Adjustable instantaneous short-circuit protection from 4800–48000 A.
• Integrated adjustable earth-fault protection.
• Four auxiliary contacts with open/closed circuit-breaker position indication.
• Withdrawable moving-part configuration for a separately ordered compatible SACE Emax 2 fixed part.

High Fault-Level Circuit Protection and Selectivity

ABB SACE Emax 2 air circuit breakers are engineered to protect high-current low-voltage installations while providing dependable switching and selective fault interruption. The E4.2H platform combines a substantial 3200 A continuous-current rating with up to 100 kA short-circuit breaking capability, making it suitable for distribution systems where prospective fault currents are particularly high.

The Ekip Dip LSIG electronic trip unit combines long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection. Adjustable settings allow the breaker to be coordinated with upstream and downstream protective devices, helping isolate faults effectively while reducing unnecessary interruption to unaffected sections of the electrical installation.

Typical Applications

• Low-voltage main distribution switchboards.
• High fault-level industrial power distribution systems.
• Transformer secondary and installation protection.
• Manufacturing and process-industry electrical systems.
• Commercial and infrastructure power distribution.
• Data centres and critical power installations.
• High-current switchgear and power-distribution assemblies.