1SDA072826R1 ABB E1.2N 1250 Ekip Touch LSIG 4p WMP Air Circuit Breaker

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

The ABB E1.2N 1250 Ekip Touch LSIG 4p WMP, order code 1SDA072826R1, is a high-performance four-pole withdrawable air circuit breaker moving part designed for protection, switching and control in demanding low-voltage power distribution systems. Part of the ABB SACE Emax 2 E1.2 series, it combines a 1250 A rated current with an Ekip Touch LSIG solid-state electronic trip unit for comprehensive overload, short-circuit and earth-fault protection.

The Ekip Touch LSIG release provides long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection. Its electronic interface enables adjustable protection settings, including overload adjustment from 0.4–1 × In, selective short-circuit adjustment from 0.6–10 × In, instantaneous protection from 1.5–15 × In and earth-fault protection from 0.1–1 × In.

The E1.2N performance level provides an ultimate short-circuit breaking capacity of 66 kA at 400/415 V AC and 50 kA at 690 V AC. Its withdrawable construction allows the moving breaker to be separated from the corresponding fixed chassis for inspection and servicing, while the four-pole configuration supports comprehensive switching and protection of four-conductor systems.

Key Advantages

• 1250 A rated current for demanding low-voltage distribution applications.
• Four-pole configuration for comprehensive switching and circuit protection.
• Ekip Touch LSIG electronic trip unit with adjustable protection settings.
• Long-time, short-time, instantaneous and earth-fault protection.
• 66 kA ultimate short-circuit breaking capacity at 400/415 V AC.
• 50 kA ultimate short-circuit breaking capacity at 690 V AC.
• Withdrawable moving-part design supports convenient 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 LSIG solid-state electronic protection release.
• Long-time overload protection.
• Short-time delayed short-circuit protection.
• Instantaneous short-circuit protection.
• Integrated earth-fault protection.
• Overload protection adjustable from 0.4–1 × In.
• Short-time protection adjustable from 0.6–10 × In.
• Instantaneous protection adjustable from 1.5–15 × In.
• Earth-fault protection adjustable from 0.1–1 × In.
• Withdrawable execution for connection through the corresponding fixed chassis.
• Fitted with four auxiliary changeover contacts and open/closed position indication.

Advanced Protection and Power Management

The ABB Ekip Touch platform combines advanced electronic protection with an intuitive interface for configuration and supervision. In this LSIG version, long-time protection responds to sustained overloads, short-time protection supports selective coordination, instantaneous protection provides rapid response to severe short circuits, and earth-fault protection helps detect damaging current paths to earth.

The withdrawable E1.2N construction is particularly suitable for switchboards where maintainability, operational flexibility and continuity of service are important. The breaker moving part connects through a separate fixed chassis and can be withdrawn when required, while four auxiliary changeover 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 comprehensive LSIG protection.