1SDA070753R1 ABB E1.2C 800 Ekip Dip LSIG 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E1.2C 800 Ekip Dip LSIG Air Circuit Breaker?

The ABB E1.2C 800 Ekip Dip LSIG, order code 1SDA070753R1, is a SACE Emax 2 air circuit breaker engineered for dependable protection and control of low-voltage power distribution systems. This configuration combines an 800 A rated current, three-pole construction, fixed installation and front terminals with ABB's Ekip Dip LSIG solid-state electronic protection release.

The E1.2C performance level provides an ultimate short-circuit breaking capacity of 50 kA at 400–440 V AC and 42 kA at 500–690 V AC. Its rated short-time withstand current is 42 kA for 1 s and 24 kA for 3 s, supporting selective protection strategies in industrial, commercial and infrastructure distribution systems.

The fitted Ekip Dip LSIG electronic release provides long-time overload, short-time selective short-circuit, instantaneous short-circuit and ground-fault protection. This comprehensive protection package makes the 1SDA070753R1 particularly suitable for distribution systems requiring both selective overcurrent protection and integrated earth-fault protection in a compact fixed air circuit breaker.

Key Advantages

• 800 A rated current for substantial low-voltage distribution circuits.
• 50 kA ultimate breaking capacity at 400–440 V AC.
• 42 kA ultimate breaking capacity at 500–690 V AC.
• 42 kA short-time withstand current for 1 s supports selective coordination.
• Comprehensive Ekip Dip LSIG electronic protection.
• Integrated ground-fault protection in addition to overload and short-circuit protection.
• Ics equal to 100% of Icu across the specified operating-voltage range.
• 690 V AC rated operational voltage for broad low-voltage system compatibility.
• Three-pole fixed construction with front terminals simplifies switchboard integration.

Key Features

• ABB SACE Emax 2 E1.2C air circuit breaker.
• Rated current (In): 800 A.
• Rated uninterrupted current (Iu): 800 A.
• Three-pole configuration.
• Fixed (F) execution.
• Front (F) main terminals.
• Ekip Dip LSIG electronic release.
• LSIG protection: long-time, short-time, instantaneous and ground-fault functions.
• C short-circuit performance level.
• 50 kA Icu at 400–440 V AC.
• 42 kA Icu at 500–690 V AC.
• Integrated earth-fault protection.
• Four auxiliary change-over contacts.
• Open/closed circuit-breaker position indication.
• Optional motor-drive capability for enhanced automation.

Comprehensive Ekip Dip LSIG Protection

The Ekip Dip LSIG release combines four complementary protection functions. Long-time protection responds to sustained overload conditions, short-time protection provides a controlled response to short circuits for selective coordination, instantaneous protection rapidly clears severe high-current faults, and the ground-fault function detects potentially damaging current flowing to earth.

The E1.2C's 42 kA one-second short-time withstand capability complements its selective short-time protection function, allowing properly coordinated downstream devices time to clear appropriate faults. Integrated ground-fault protection extends this protection strategy to earth-fault conditions, making the 1SDA070753R1 a versatile solution for distribution systems where comprehensive electronic protection and continuity of unaffected circuits are important.

Typical Applications

• Low-voltage main and sub-distribution switchboards.
• Industrial power distribution systems.
• Manufacturing and process plant electrical systems.
• Commercial building power distribution.
• Infrastructure and utility installations.
• Generator and transformer distribution assemblies.
• Applications requiring comprehensive LSIG electronic protection.
• Systems requiring integrated ground-fault protection.
• Fixed switchboard installations requiring an 800 A three-pole air circuit breaker.