1SDA072748R1 ABB E1.2N 800 Ekip Hi-Touch LSI 4p WMP Air Circuit Breaker

Why Choose the ABB E1.2N 800 Ekip Hi-Touch LSI 4p WMP Air Circuit Breaker?

The ABB 1SDA072748R1 is a SACE Emax 2 E1.2N air circuit breaker (ACB) designed for advanced protection, monitoring and switching in low-voltage electrical distribution systems. Rated at 800 A, this four-pole breaker combines ABB’s compact E1.2N frame with an Ekip Hi-Touch LSI solid-state electronic trip unit providing long-time overload, short-time delayed and instantaneous short-circuit protection.

The Ekip Hi-Touch release is part of ABB’s advanced Ekip electronic protection platform, combining configurable protection with enhanced measurement, monitoring and power-management capabilities. Its LSI protection configuration supports selective coordination between upstream and downstream protective devices while avoiding integrated earth-fault protection where that function is provided separately or is not required.

The 1SDA072748R1 is a four-pole withdrawable mobile part (WMP) with a rated uninterrupted current of 800 A and rated voltage of 690 V. The E1.2N performance level provides a short-circuit breaking capacity of up to 66 kA and a rated short-time withstand current of 50 kA, making this breaker suitable for demanding commercial, industrial and infrastructure distribution systems.

Key Advantages

• 800 A rated current for low-voltage main and feeder protection.
• 690 V rated voltage supports a broad range of low-voltage distribution applications.
• 66 kA breaking capacity provides robust short-circuit interruption performance.
• 50 kA short-time withstand capability supports selective distribution-system protection.
• Ekip Hi-Touch LSI electronic trip unit combines advanced protection, measurement and monitoring functionality.
• Long-time, short-time and instantaneous protection supports effective coordination with upstream and downstream protective devices.
• Four-pole configuration with 100% neutral-pole current capability suits three-phase four-wire distribution networks.
• Withdrawable mobile-part construction facilitates isolation, inspection, servicing and switchboard maintenance.

Key Features

• ABB SACE Emax 2 E1.2N series.
• 800 A rated current.
• 690 V rated voltage.
• Four-pole configuration.
• 100% neutral-pole current rating.
• N short-circuit performance level.
• 66 kA breaking capacity.
• 50 kA short-time withstand current.
• Ekip Hi-Touch LSI solid-state electronic trip unit.
• LSI protection provides long-time overload, short-time delayed and instantaneous short-circuit protection.
• No integrated earth-fault protection in the LSI configuration.
• Withdrawable mobile part (WMP) configuration.
• Four auxiliary contacts fitted as standard on this configuration.
• Circuit-breaker open/closed position indication.
• Designed for connection through the corresponding Emax 2 E1.2 fixed part.

Advanced Hi-Touch Selective Protection

The ABB SACE Emax 2 E1.2N combines compact air circuit breaker construction with advanced electronic protection for low-voltage networks requiring reliable overload and short-circuit interruption. With a rated current of 800 A, breaking capacity of up to 66 kA and short-time withstand capability of 50 kA, this configuration provides substantial fault-current performance within ABB’s compact E1.2 frame.

The Ekip Hi-Touch LSI solid-state release provides long-time overload, short-time delayed and instantaneous short-circuit protection. The short-time function supports selective coordination within multi-level distribution systems, while the Hi-Touch platform provides enhanced protection, measurement and power-management capabilities for installations requiring greater visibility and control than a basic electronic trip unit.

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.
• Manufacturing and process facilities.
• Systems requiring selective short-circuit protection.
• Advanced power monitoring and energy-management installations.
• Switchboards requiring withdrawable four-pole circuit breaker construction.