1SDA072183R1 ABB E1.2C 1250 Ekip Dip LSIG 3p WMP Air Circuit Breaker Moving Part

Why Choose the ABB E1.2C 1250 Ekip Dip LSIG 3p WMP Air Circuit Breaker Moving Part?

The ABB E1.2C 1250 Ekip Dip LSIG 3p WMP, order code 1SDA072183R1, is the three-pole moving part of a withdrawable SACE Emax 2 air circuit breaker, designed for protection and switching in demanding low-voltage AC distribution systems. Rated at 1250 A, it combines ABB's compact E1.2C breaker platform with an Ekip Dip solid-state electronic protection release.

The Ekip Dip LSIG trip unit provides long-time overload (L), short-time delayed short-circuit (S), instantaneous short-circuit (I) and integrated ground-fault (G) protection. Its adjustable protection thresholds allow the breaker to be coordinated with other protective devices, supporting selective and dependable operation throughout industrial and commercial distribution networks.

As a WMP moving part, the 1SDA072183R1 is intended for use with the corresponding ABB Emax 2 fixed chassis. The E1.2C performance level provides a rated ultimate short-circuit breaking capacity of 50 kA at 400–440 V AC and 42 kA at 500–690 V AC, together with a rated short-time withstand current of 42 kA for 1 s.

Key Advantages

• 1250 A three-pole Emax 2 moving part for withdrawable air circuit breaker installations.
• Ekip Dip LSIG electronic trip unit provides comprehensive four-function circuit protection.
• Integrated ground-fault protection complements overload and short-circuit protection.
• 50 kA ultimate short-circuit breaking capacity at 400–440 V AC.
• 42 kA short-time withstand current for 1 s supports selective protection strategies.
• 500–1250 A adjustable overload setting supports application-specific protection.
• Withdrawable construction facilitates inspection, servicing and replacement of the breaker assembly.
• Four change-over auxiliary contacts support switchboard monitoring and control functions.

Key Features

• ABB SACE Emax 2 E1.2C series.
• 1250 A rated uninterrupted current (Iu).
• Three-pole configuration.
• Withdrawable moving-part construction.
• Ekip Dip LSIG solid-state electronic release.
• Long-time overload (L) protection.
• Short-time delayed short-circuit (S) protection.
• Instantaneous short-circuit (I) protection.
• Integrated earth-fault / ground-fault (G) protection.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 50 kA Icu at 400–440 V AC.
• 42 kA Icu at 500–690 V AC.
• Ics equal to 100% of Icu.
• 42 kA Icw for 1 s.

Comprehensive LSIG Protection for Withdrawable Power Distribution

Withdrawable air circuit breakers allow the active breaker assembly to be disconnected and removed from its fixed chassis, simplifying inspection, servicing and replacement while the switchboard's permanent connections remain installed. The ABB SACE Emax 2 E1.2 platform combines this service-friendly arrangement with compact construction and robust short-circuit performance for modern low-voltage distribution systems.

The Ekip Dip LSIG release protects against sustained overloads, delayed short circuits, severe instantaneous faults and ground faults. Combined with the E1.2C frame's 50 kA ultimate breaking capacity at 400–440 V AC and 42 kA short-time withstand capability for 1 s, the 1SDA072183R1 provides comprehensive protection for appropriately coordinated industrial and commercial electrical networks.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process plant switchboards.
• Transformer secondary distribution systems.
• Incoming and high-current feeder protection.
• Withdrawable switchgear requiring convenient breaker servicing.
• Distribution networks requiring integrated ground-fault protection.
• Systems requiring configurable LSIG electronic protection.