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1SDA071458R1 ABB E1.2B 1250 Ekip Hi-Touch LSI 4-Pole Air Circuit Breaker
ABB 1SDA071458R1 is a SACE Emax 2 E1.2B 1250 A fixed four-pole air circuit breaker with front terminals and an Ekip Hi-Touch LSI solid-state electronic trip unit for advanced protection, measurement and monitoring in low-voltage power distribution systems.
£7,749.28
Why Choose the ABB 1SDA071458R1 E1.2B 1250 Ekip Hi-Touch LSI Air Circuit Breaker?
The ABB 1SDA071458R1 is a high-performance SACE Emax 2 E1.2B air circuit breaker designed for advanced protection, measurement and switching in low-voltage power distribution systems. Rated at 1250 A, this four-pole fixed breaker combines ABB's compact E1.2B frame with the advanced Ekip Hi-Touch LSI solid-state electronic trip unit.
The Ekip Hi-Touch LSI release provides long-time overload (L), short-time selective short-circuit (S) and instantaneous short-circuit (I) protection. The Hi-Touch platform also provides advanced measurement and Network Analyzer capabilities, helping operators monitor electrical parameters and power quality while maintaining configurable circuit protection.
The 1SDA071458R1 is supplied in a fixed four-pole configuration with front terminals and is fitted with four auxiliary change-over contacts plus open/closed breaker position indication. With a rated voltage of 690 V AC and an ultimate short-circuit breaking capacity of 42 kA at 400 V AC, it provides dependable protection for industrial, commercial and infrastructure power distribution systems.
Key Advantages
- 1250 A SACE Emax 2 air circuit breaker for substantial low-voltage distribution circuits.
- Compact E1.2B frame supports space-efficient switchboard construction.
- Advanced Ekip Hi-Touch LSI electronic protection release.
- Long-time, short-time and instantaneous protection functions.
- Short-time protection supports selective coordination between protective devices.
- 42 kA ultimate short-circuit breaking capacity at 400 V AC.
- Integrated advanced measurement and Network Analyzer functionality.
- Four-pole fixed construction with front terminals for permanent switchboard installation.
Key Features
- ABB SACE Emax 2 E1.2B series.
- 1250 A rated uninterrupted current.
- 4-pole fixed configuration.
- Front terminal connections.
- Ekip Hi-Touch LSI solid-state electronic trip unit.
- Long-time overload protection (L).
- Short-time selective short-circuit protection (S).
- Instantaneous short-circuit protection (I).
- Overload release adjustable from 500–1250 A.
- Short-time delayed protection adjustable from 750–12500 A.
- Instantaneous protection adjustable from 1875–18750 A.
- 690 V AC rated voltage.
- 42 kA Icu at 400 V AC.
- Four auxiliary change-over contacts.
- Open/closed breaker position indication.
- Advanced electrical measurement and power-quality analysis capabilities.
Advanced LSI Protection and Power-System Monitoring
The ABB SACE Emax 2 E1.2B platform provides switching, isolation and electronic fault protection for low-voltage electrical distribution networks. Its compact construction, 1250 A current rating and robust short-circuit performance make the 1SDA071458R1 suitable for switchboards where dependable protection, selective coordination and efficient use of installation space are important.
The Ekip Hi-Touch LSI release combines adjustable overload, delayed short-circuit and instantaneous short-circuit protection with advanced electrical monitoring. Network Analyzer functionality supports real-time supervision of power quality, while Ekip Connect and optional communication modules allow the Emax 2 platform to be integrated into modern automation, monitoring and energy-management architectures.
Typical Applications
- Low-voltage switchboard incomer protection.
- Industrial power distribution systems.
- Commercial building electrical distribution.
- Transformer secondary distribution systems.
- Feeder and distribution circuit protection.
- Manufacturing and process facilities.
- Data centres and critical infrastructure.
- Power distribution systems requiring advanced measurement and network analysis.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Frame | E1.2B |
| ABB order code | 1SDA071458R1 |
| EAN | 8015644753085 |
| Product type | Air circuit breaker |
| Rated uninterrupted current (Iu) | 1250 A |
| Number of poles | 4 |
| Installation | Fixed |
| Main terminal arrangement | Front terminals |
| Main circuit connection | Bolt connection |
| Trip unit | Ekip Hi-Touch LSI |
| Release type | Solid-state electronic |
| Protection functions | Long-time (L), short-time (S), instantaneous (I) |
| Overload release setting | 500–1250 A |
| Short-time delayed short-circuit setting | 750–12500 A |
| Instantaneous short-circuit setting | 1875–18750 A |
| Integrated earth-fault protection | No |
| Rated voltage | 690 V AC |
| Ultimate short-circuit breaking capacity (Icu) at 400 V AC | 42 kA |
| Auxiliary contacts | 4 change-over contacts |
| Breaker position indication | Open / closed |
| Network analysis | Integrated Network Analyzer functionality |
| Communication expansion | Compatible with Emax 2 communication modules |
| Configuration and diagnostics | Ekip Connect compatible |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the ABB 1SDA071458R1?
The ABB 1SDA071458R1 is a SACE Emax 2 E1.2B 1250 A four-pole fixed air circuit breaker with front terminals and an Ekip Hi-Touch LSI solid-state electronic protection release.
What protection functions does the Ekip Hi-Touch LSI trip unit provide?
The Ekip Hi-Touch LSI release provides long-time overload protection (L), short-time selective short-circuit protection (S) and instantaneous short-circuit protection (I).
What is the breaking capacity of the ABB E1.2B 1250?
The ABB E1.2B 1250 has an ultimate short-circuit breaking capacity of 42 kA at 400 V AC.
What is the overload setting range of the ABB 1SDA071458R1?
The overload release setting range is 500–1250 A, allowing the long-time protection function to be configured for the protected circuit.
Does the ABB 1SDA071458R1 include earth-fault protection?
No. This model uses an LSI trip configuration providing long-time, short-time and instantaneous protection; the corresponding LSIG configuration adds the G earth-fault protection function.
Does the Ekip Hi-Touch platform support power-quality monitoring?
Yes. The Ekip Hi-Touch platform includes advanced measurement and Network Analyzer functionality for monitoring electrical parameters and power quality.
Is the ABB 1SDA071458R1 fixed or withdrawable?
This model is a fixed four-pole air circuit breaker with front terminals, designed for permanent installation within a suitable low-voltage switchboard or power distribution assembly.
Trusted by Power Distribution Professionals Worldwide
ABB SACE Emax 2 air circuit breakers combine compact construction, advanced electronic protection, electrical monitoring and dependable short-circuit performance for industrial, commercial and infrastructure low-voltage power distribution systems.
