1SDA072825R1 ABB E1.2N 1250 Ekip Touch LSI 4p WMP Air Circuit Breaker

Why Choose the ABB E1.2N 1250 Ekip Touch LSI 4p WMP Air Circuit Breaker?

The ABB E1.2N 1250 Ekip Touch LSI 4p WMP, order code 1SDA072825R1, is a high-performance four-pole withdrawable air circuit breaker moving part designed for protection, switching and power management in demanding low-voltage distribution systems. Part of the ABB SACE Emax 2 E1.2 series, it combines a 1250 A rated current with an Ekip Touch LSI electronic trip unit for advanced overload and short-circuit protection.

The Ekip Touch LSI solid-state electronic release provides long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection. Its touch-based interface supports precise protection configuration and monitoring, while the short-time function enables selective coordination between protective devices in complex industrial and commercial distribution networks.

The E1.2N performance level provides an ultimate short-circuit breaking capacity of 66 kA at 400 V AC. Its withdrawable construction enables the moving breaker to be separated from the corresponding fixed chassis for inspection and servicing, while the four-pole arrangement provides switching and protection across all four conductors in suitable low-voltage systems.

Key Advantages

• 1250 A rated current for demanding low-voltage power distribution.
• Four-pole configuration for comprehensive switching and circuit protection.
• Ekip Touch LSI electronic trip unit with advanced electronic configuration.
• Long-time, short-time delayed and instantaneous protection functions.
• 66 kA ultimate short-circuit breaking capacity at 400 V AC.
• Short-time protection supports selective coordination within distribution networks.
• Withdrawable moving-part design facilitates inspection, servicing and replacement.
• Part of the modular ABB SACE Emax 2 air circuit breaker platform.

Key Features

• ABB SACE Emax 2 E1.2N air circuit breaker moving part.
• 1250 A rated uninterrupted current.
• 4-pole construction.
• Ekip Touch LSI solid-state electronic protection release.
• Long-time overload protection.
• Short-time delayed short-circuit protection.
• Instantaneous short-circuit protection.
• Overload release adjustable from 500–1250 A.
• Short-time delayed short-circuit release adjustable from 750–12500 A.
• Instantaneous short-circuit release adjustable from 1875–18750 A.
• 690 V AC rated voltage.
• Withdrawable execution for connection through the corresponding separate fixed chassis.
• Four auxiliary changeover contacts.
• Circuit breaker open/closed position indication.
• Optional motor operator capability.

Advanced Protection and Power Management

The ABB Ekip Touch platform combines sophisticated electronic circuit protection with an intuitive interface for configuration and supervision. On this LSI version, long-time protection responds to sustained overloads, short-time protection enables selective coordination during short-circuit events, and instantaneous protection provides rapid tripping when severe fault currents occur.

The withdrawable E1.2N construction is particularly suitable for switchboards where serviceability, continuity and operational flexibility are important. The breaker moving part connects through a separate fixed chassis and can be withdrawn when required, while auxiliary contacts and open/closed position indication support integration with switchboard signalling and control systems.

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process facilities.
• Transformer and feeder protection.
• Infrastructure and utility installations.
• Critical power distribution systems.
• Withdrawable switchgear requiring advanced selective LSI protection.