1SDA073141R1 ABB E4.2H 3200 Ekip Dip LI 4p WMP Air Circuit Breaker

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

The ABB E4.2H 3200 Ekip Dip LI 4p WMP, order code 1SDA073141R1, 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 3200 A, this withdrawable moving part combines the E4.2 frame with ABB's high-breaking-capacity H performance level and an Ekip Dip LI electronic trip unit.

The Ekip Dip LI release provides long-time overload (L) and instantaneous short-circuit (I) protection. Its solid-state electronic design provides dependable circuit protection while retaining straightforward configuration, making this breaker well suited to high-current feeders, transformer protection and main distribution applications where advanced LSI or earth-fault functions are not required.

With a rated operational voltage of 690 V AC, rated insulation voltage of 1000 V AC and an ultimate short-circuit breaking capacity of 100 kA at 400–440 V AC, the E4.2H 3200 is engineered for electrical networks with substantial prospective fault currents. Its four-pole withdrawable moving-part construction enables connection through a separate Emax 2 fixed chassis and supports efficient inspection, servicing and replacement within high-current switchboards.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage distribution systems.
• 3200 A rated current for high-current industrial, commercial and infrastructure applications.
• Four-pole configuration with 100% neutral-pole current capability.
• Ekip Dip LI electronic trip unit provides overload and instantaneous short-circuit protection.
• 100 kA ultimate short-circuit breaking capacity at 400–440 V AC.
• 85 kA ultimate short-circuit breaking capacity at 500–690 V AC.
• 85 kA short-time withstand current for 1 s supports demanding distribution applications.
• Withdrawable moving-part construction simplifies switchboard inspection, maintenance and servicing.

Key Features

• ABB SACE Emax 2 E4.2H air circuit breaker platform.
• 3200 A rated current.
• Four-pole construction.
• Ekip Dip LI solid-state electronic release.
• Long-time overload (L) and instantaneous short-circuit (I) protection.
• 100 kA Icu at 400–440 V AC.
• 85 kA Icu at 500–690 V AC.
• 100% Ics-to-Icu performance.
• 85 kA short-time withstand current for 1 s.
• 66 kA short-time withstand current for 3 s.
• 12 kV rated impulse withstand voltage.
• Four auxiliary contacts fitted.
• Circuit-breaker open/closed position indication.
• Withdrawable moving part for connection through a separate fixed chassis.

High-Current Protection for Demanding Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 provide switching, isolation and protection for high-current low-voltage electrical networks. The E4.2H platform combines a substantial 3200 A continuous-current rating with high short-circuit breaking performance, making it suitable for main distribution systems where prospective fault currents require robust and dependable circuit protection.

The Ekip Dip LI trip unit provides electronic long-time overload and instantaneous short-circuit protection for the connected circuit. Combined with the E4.2H breaker's 100 kA breaking capability at 400–440 V AC and high short-time withstand performance, this configuration is well suited to transformers, main feeders and high-current distribution circuits in appropriately engineered electrical networks.

Typical Applications

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