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1SDA072809R1 ABB E1.2B 1250 Ekip Hi-Touch LSIG 4p WMP Air Circuit Breaker
ABB 1SDA072809R1 SACE Emax 2 E1.2B 1250 A four-pole withdrawable air circuit breaker mobile part with Ekip Hi-Touch LSIG electronic protection, 42 kA short-circuit breaking capacity at 440 V AC and integrated earth-fault protection.
£6,951.79
Why Choose the ABB E1.2B 1250 Ekip Hi-Touch LSIG 4p WMP Air Circuit Breaker?
The ABB 1SDA072809R1 is a SACE Emax 2 E1.2B air circuit breaker (ACB) designed for advanced protection, monitoring and switching in low-voltage electrical distribution systems. Rated at 1250 A, this four-pole breaker combines ABB’s compact E1.2B frame with an Ekip Hi-Touch LSIG solid-state electronic trip unit providing long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection.
The Ekip Hi-Touch release is part of ABB’s advanced electronic protection platform, combining comprehensive circuit protection with measurement, monitoring and power-management functionality. The LSIG configuration provides a complete set of core distribution protection functions, including integrated earth-fault protection, making it suitable for installations requiring sophisticated selectivity and visibility of electrical system performance.
The 1SDA072809R1 is a four-pole withdrawable mobile part (WMP) with a rated uninterrupted current of 1250 A. The E1.2B performance level provides an ultimate short-circuit breaking capacity of 42 kA at 440 V AC and a rated short-time withstand current of 42 kA for 1 second, supporting dependable protection in commercial, industrial and infrastructure power distribution systems.
Key Advantages
- 1250 A rated uninterrupted current for substantial low-voltage distribution loads.
- 42 kA ultimate short-circuit breaking capacity at 440 V AC for dependable fault interruption.
- 42 kA short-time withstand current for 1 second supports selective protection strategies.
- Ekip Hi-Touch LSIG electronic trip unit combines advanced protection, measurement and monitoring functionality.
- Long-time, short-time, instantaneous and earth-fault protection provides comprehensive circuit protection.
- Integrated earth-fault protection enhances protection against faults to earth.
- Four-pole configuration suits three-phase four-wire electrical distribution systems requiring neutral switching.
- Withdrawable mobile-part construction facilitates isolation, inspection, servicing and switchboard maintenance.
Key Features
- ABB SACE Emax 2 E1.2B series.
- 1250 A rated uninterrupted current.
- Four-pole configuration.
- B short-circuit performance level.
- 42 kA Icu at 440 V AC.
- 42 kA Icw for 1 second.
- Ekip Hi-Touch LSIG solid-state electronic trip unit.
- LSIG protection provides long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection.
- Advanced measurement, monitoring and power-management functionality through the Ekip Hi-Touch platform.
- Integrated earth-fault protection for enhanced distribution-system protection.
- Withdrawable mobile part (WMP) configuration.
- Four auxiliary contacts for status and control applications.
- Circuit-breaker open/closed position indication.
- Designed for connection through the corresponding Emax 2 E1.2 fixed part.
Advanced Hi-Touch LSIG Power Protection
The ABB SACE Emax 2 E1.2B combines compact air circuit breaker construction with advanced electronic protection for low-voltage networks requiring reliable overload, short-circuit and earth-fault interruption. With a rated uninterrupted current of 1250 A, an ultimate breaking capacity of 42 kA at 440 V AC and a short-time withstand capability of 42 kA for 1 second, this configuration delivers robust protection within ABB’s compact E1.2 frame.
The Ekip Hi-Touch LSIG solid-state electronic trip unit provides long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection. The combination of short-time and earth-fault functions supports selective coordination and comprehensive fault protection, while the Hi-Touch platform provides advanced measurement, monitoring and power-management capabilities for demanding electrical distribution systems.
Typical Applications
- Low-voltage main and sub-distribution switchboards.
- Three-phase four-wire electrical distribution systems.
- Commercial building power distribution.
- Industrial main incomers and feeder protection.
- Transformer secondary distribution systems.
- Infrastructure and utility installations.
- Manufacturing and process facilities.
- Critical-power distribution systems.
- Systems requiring selective short-circuit and earth-fault protection.
- Advanced power monitoring and energy-management installations.
- Switchboards requiring withdrawable four-pole circuit breaker construction.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Frame | E1.2 |
| Order code / SKU | 1SDA072809R1 |
| EAN | 8015644766597 |
| Product type | Air circuit breaker |
| Rated uninterrupted current (Iu) | 1250 A |
| Number of poles | 4 |
| Performance level | B |
| Trip unit | Ekip Hi-Touch |
| Release type | Solid-state electronic |
| Protection functions | LSIG |
| Long-time overload protection | Yes |
| Short-time delayed short-circuit protection | Yes |
| Instantaneous short-circuit protection | Yes |
| Integrated earth-fault protection | Yes |
| Ultimate short-circuit breaking capacity (Icu) at 440 V AC | 42 kA |
| Rated short-time withstand current (Icw, 1 s) | 42 kA |
| Execution | Withdrawable mobile part |
| Main circuit connection | Connection through corresponding fixed part |
| Auxiliary contacts | 4 |
| Open / closed position indication | Yes |
| Dimensions | 348 × 363.5 × 271 mm |
| Weight | 20 kg |
| Application | Low-voltage power distribution |
| Breaker family | Emax 2 |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the ABB 1SDA072809R1?
The ABB 1SDA072809R1 is a four-pole SACE Emax 2 E1.2B withdrawable air circuit breaker mobile part rated at 1250 A and equipped with an Ekip Hi-Touch LSIG solid-state electronic trip unit.
What is the rated current of the ABB E1.2B 1SDA072809R1?
The breaker has a rated uninterrupted current of 1250 A, making it suitable for substantial commercial, industrial and infrastructure low-voltage distribution loads.
What is the breaking capacity of the ABB E1.2B 1250?
The E1.2B 1250 provides an ultimate short-circuit breaking capacity of 42 kA at 440 V AC and a rated short-time withstand current of 42 kA for 1 second.
What does Ekip Hi-Touch LSIG mean?
Ekip Hi-Touch is ABB’s advanced electronic trip unit providing protection, measurement, monitoring and power-management functionality, while LSIG denotes long-time, short-time, instantaneous and earth-fault protection.
Is the ABB 1SDA072809R1 fixed or withdrawable?
The 1SDA072809R1 is a four-pole withdrawable mobile part designed for use with the corresponding Emax 2 E1.2 fixed part, allowing the breaker to be isolated and withdrawn from the switchboard for inspection, servicing and maintenance.
Trusted for Advanced Low-Voltage Power Protection
ABB SACE Emax 2 air circuit breakers combine compact construction, dependable short-circuit performance and advanced LSIG electronic protection for commercial, industrial and infrastructure low-voltage distribution systems requiring selectivity, earth-fault protection, monitoring and flexible withdrawable switchboard integration.
