1SDA073103R1 ABB E4.2V 2500 Ekip Dip LSIG 4p WMP Air Circuit Breaker

Why Choose the ABB E4.2V 2500 Ekip Dip LSIG 4p WMP Air Circuit Breaker?

The ABB E4.2V 2500 Ekip Dip LSIG 4p WMP, order code 1SDA073103R1, is a high-performance four-pole air circuit breaker (ACB) from the ABB SACE Emax 2 range, designed for protection and switching in demanding low-voltage power distribution systems. Rated at 2500 A, this withdrawable moving part combines the E4.2 frame with ABB's high-performance V breaking-capacity level and an Ekip Dip LSIG electronic trip unit.

The Ekip Dip LSIG release provides long-time overload (L), short-time selective short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection. Its electronic protection functions provide adjustable settings for coordinating the circuit breaker with transformers, feeders and downstream protective devices while retaining straightforward configuration through the Ekip Dip interface.

With a rated operational voltage of 690 V AC, rated insulation voltage of 1000 V AC and an ultimate short-circuit breaking capacity of 150 kA at 400–440 V AC, the E4.2V 2500 is engineered for electrical networks with very high prospective fault currents. Its four-pole withdrawable construction allows the moving part to connect through a separate Emax 2 chassis, supporting efficient maintenance and servicing within high-current switchboards.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage distribution systems.
• 2500 A rated current for high-current industrial and infrastructure applications.
• Four-pole configuration with 100% neutral-pole current capability.
• Ekip Dip LSIG electronic trip unit provides overload, short-circuit and earth-fault protection.
• 150 kA ultimate short-circuit breaking capacity at 400–440 V AC.
• 100 kA short-time withstand current for 1 s supports demanding selectivity requirements.
• Withdrawable moving-part construction simplifies inspection, servicing and switchboard maintenance.
• Suitable for 690 V IT networks.

Key Features

• ABB SACE Emax 2 E4.2V air circuit breaker platform.
• 2500 A rated current.
• Four-pole construction.
• Ekip Dip LSIG solid-state electronic release.
• Long-time (L), short-time (S), instantaneous (I) and earth-fault (G) protection.
• 1000–2500 A overload release adjustment range.
• 1500–25000 A short-time delayed short-circuit adjustment range.
• 3750–37500 A instantaneous short-circuit adjustment range.
• 150 kA Icu at 400–440 V AC.
• 100 kA Icu at 500–690 V AC.
• 12 kV rated impulse withstand voltage.
• Four auxiliary change-over contacts and circuit-breaker open/closed position indication.
• Withdrawable moving part with connection through a separate chassis.
• Optional motor operating mechanism.

High-Performance Protection for Critical Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 protect high-current low-voltage networks against overloads, short circuits and earth faults while providing dependable switching and isolation. The E4.2V platform combines a 2500 A continuous-current rating with very high short-circuit performance, making it suitable for installations where fault levels can exceed the capabilities of conventional distribution circuit breakers.

The Ekip Dip LSIG trip unit provides adjustable long-time, short-time, instantaneous and earth-fault protection for selective coordination within complex electrical networks. Combined with a 100 kA 1-second short-time withstand rating and 100% Ics-to-Icu performance, the breaker is well suited to main distribution and high-current feeder applications where selectivity and continuity of supply are important.

Typical Applications

• Main low-voltage distribution switchboards.
• High-fault-level industrial electrical networks.
• Transformer secondary protection.
• High-current feeder protection.
• Manufacturing plants and process facilities.
• Data centres and critical power infrastructure.
• Commercial and infrastructure electrical distribution.
• Large switchgear and power distribution installations.