1SDA070803R1 ABB E1.2N 1000 Ekip Dip LSIG 3P Fixed Air Circuit Breaker

Why Choose the ABB E1.2N 1000 Ekip Dip LSIG 3P Fixed Air Circuit Breaker?

The ABB 1SDA070803R1 is a high-performance SACE Emax 2 E1.2N air circuit breaker (ACB) designed for comprehensive protection and switching in low-voltage power distribution systems. Rated at 1000 A, this three-pole breaker incorporates an Ekip Dip LSIG electronic trip unit providing long-time overload, selective short-time short-circuit, instantaneous short-circuit and earth-fault protection.

As part of the ABB SACE Emax 2 range, the E1.2N combines compact construction with strong short-circuit performance and configurable electronic protection. The Ekip Dip LSIG release uses DIP switches for straightforward adjustment, with overload protection adjustable from 0.4–1 × In, short-time protection from 0.6–10 × In, instantaneous protection from 1.5–15 × In and earth-fault protection from 0.1–1 × In.

This configuration is a three-pole fixed circuit breaker with front terminals. It provides an ultimate short-circuit breaking capacity of 66 kA at 400–440 V AC and 50 kA at 500–690 V AC, together with a short-time withstand current of 50 kA for 1 second.

Key Advantages

• High-performance ABB SACE Emax 2 E1.2N air circuit breaker.
• 1000 A rated current for demanding low-voltage distribution systems.
• Ekip Dip LSIG electronic trip unit for comprehensive circuit protection.
• Long-time, short-time, instantaneous and earth-fault protection functions.
• 66 kA ultimate short-circuit breaking capacity at 400–440 V AC.
• 50 kA short-time withstand current for 1 second.
• DIP-switch adjustment for straightforward protection configuration.
• Fixed three-pole construction with front terminals.

Key Features

• ABB SACE Emax 2 E1.2N air circuit breaker.
• 1000 A rated uninterrupted current.
• 3-pole configuration.
• Fixed circuit-breaker execution.
• Front terminal connection arrangement.
• Ekip Dip LSIG solid-state electronic release.
• Long-time overload (L) protection.
• Selective short-time short-circuit (S) protection.
• Instantaneous short-circuit (I) protection.
• Earth-fault (G) protection.
• Protection settings configured using DIP switches.
• Four auxiliary change-over contacts for breaker status signalling.

Comprehensive LSIG Protection for Power Distribution

Air circuit breakers provide switching, isolation and fault protection at critical points in low-voltage distribution systems. The ABB SACE Emax 2 platform combines high short-circuit performance with configurable electronic trip technology for dependable protection of switchboards, busbars, cables and connected electrical equipment.

The Ekip Dip LSIG trip unit fitted to this E1.2N configuration provides four complementary protection functions covering overload, delayed short-circuit, instantaneous short-circuit and earth-fault conditions. The short-time function supports selective coordination between protective devices, while the integrated earth-fault function provides additional protection against faults to earth.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process facilities.
• Infrastructure and utility installations.
• Systems requiring selective short-circuit and earth-fault protection.
• OEM switchboards and electrical distribution assemblies.