1SDA072685R1 ABB E1.2B 630 Ekip Touch LSI 4p WMP Air Circuit Breaker

Why Choose the ABB E1.2B 630 Ekip Touch LSI 4p WMP Air Circuit Breaker?

The ABB 1SDA072685R1 is a compact SACE Emax 2 E1.2B air circuit breaker (ACB) designed for reliable protection, switching and monitoring in low-voltage electrical distribution systems. Rated at 630 A, this four-pole breaker combines ABB’s E1.2B frame with an advanced Ekip Touch LSI electronic trip unit providing long-time overload, short-time delayed and instantaneous short-circuit protection.

As part of the ABB SACE Emax 2 air circuit breaker series, the E1.2B combines compact construction with electronic protection and flexible switchboard integration. The Ekip Touch release provides an intuitive touchscreen interface together with protection, measurement and monitoring capabilities, while the four-pole configuration enables switching of the neutral conductor together with all three phases.

The 1SDA072685R1 is a four-pole withdrawable mobile part (WMP) with a rated uninterrupted current of 630 A and rated operational voltage of 690 V AC. The E1.2B performance level provides an ultimate short-circuit breaking capacity of 42 kA at 400–690 V AC and a rated short-time withstand current of 42 kA for 1 second, making it suitable for commercial, industrial and infrastructure distribution systems requiring dependable selective protection.

Key Advantages

• 630 A rated uninterrupted current for low-voltage main and feeder protection.
• 42 kA ultimate short-circuit breaking capacity across key operating voltages up to 690 V AC.
• 42 kA short-time withstand current for 1 second supports selective protection strategies.
• Advanced Ekip Touch LSI electronic trip unit with touchscreen-based configuration and monitoring.
• Long-time, short-time and instantaneous protection enables effective coordination with other protective devices.
• Four-pole configuration enables switching and isolation of the neutral conductor together with the three phases.
• Withdrawable mobile-part construction facilitates isolation, inspection, servicing and switchboard maintenance.

Key Features

• ABB SACE Emax 2 E1.2B series.
• 630 A rated uninterrupted current.
• 690 V AC rated operational voltage.
• Four-pole configuration with 100% neutral-pole current capability.
• B short-circuit performance level.
• 42 kA Icu at 400–690 V AC.
• 42 kA Icw for 1 second.
• Ekip Touch LSI electronic trip unit.
• LSI protection provides long-time overload, short-time delayed and instantaneous short-circuit protection.
• 252–630 A overload release adjustment range.
• 378–6300 A short-time delayed short-circuit adjustment range.
• 945–9450 A instantaneous short-circuit adjustment range.
• Withdrawable mobile part (WMP) configuration.
• Fitted with four auxiliary contacts and circuit-breaker open/closed position indication.

Advanced Selective Four-Pole Power Protection

The ABB SACE Emax 2 E1.2B provides compact air circuit breaker protection for low-voltage networks requiring reliable overload and short-circuit interruption. With a rated current of 630 A, an ultimate breaking capacity of 42 kA and a short-time withstand capability of 42 kA for 1 second, this configuration is well suited to distribution systems where compact switchgear, selectivity and continuity of supply are important.

The Ekip Touch LSI electronic trip unit provides adjustable long-time overload, short-time delayed and instantaneous short-circuit protection. Its short-time function supports selective coordination within multi-level distribution systems, while the touchscreen interface simplifies protection configuration and monitoring. The LSI configuration does not include integrated earth-fault protection.

Typical Applications

• Low-voltage main and sub-distribution switchboards.
• Three-phase four-wire electrical distribution systems.
• Commercial building power distribution.
• Industrial feeder and distribution protection.
• Transformer secondary distribution systems.
• Infrastructure and utility installations.
• Systems requiring selective short-circuit protection.
• Switchboards requiring withdrawable four-pole circuit breaker construction.