Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SDA071459R1 ABB E1.2B 1250 Ekip Hi-Touch LSIG 4-Pole Air Circuit Breaker
ABB 1SDA071459R1 is a SACE Emax 2 E1.2B 1250 A fixed four-pole air circuit breaker with front terminals and an Ekip Hi-Touch LSIG electronic trip unit providing advanced overload, short-circuit and earth-fault protection with integrated measurement and power-quality analysis.
£8,185.65
Why Choose the ABB 1SDA071459R1 E1.2B 1250 Ekip Hi-Touch LSIG Air Circuit Breaker?
The ABB 1SDA071459R1 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 LSIG solid-state electronic trip unit.
The Ekip Hi-Touch LSIG release provides long-time overload (L), short-time selective short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection. Integrated Ekip Measuring Pro and Network Analyzer functionality adds advanced electrical measurement and real-time power-quality analysis, while the touch-sensitive display provides an intuitive interface for configuration and monitoring.
The 1SDA071459R1 is supplied in a fixed four-pole configuration with front terminals and includes four auxiliary contacts plus open/closed breaker position indication. With a rated operational voltage of 690 V AC, rated insulation voltage of 1000 V AC and an ultimate short-circuit breaking capacity of 42 kA across 380–690 V AC, it provides comprehensive protection for demanding industrial, commercial and infrastructure 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 LSIG electronic protection release.
- Long-time, short-time, instantaneous and earth-fault protection functions.
- Short-time protection supports selective coordination between protective devices.
- 42 kA ultimate short-circuit breaking capacity across 380–690 V AC.
- Integrated Ekip Measuring Pro 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 current.
- 4-pole fixed configuration.
- Front terminal connections.
- Ekip Hi-Touch LSIG solid-state electronic trip unit.
- Long-time overload protection (L).
- Short-time selective short-circuit protection (S).
- Instantaneous short-circuit protection (I).
- Earth-fault protection (G).
- Overload protection adjustable from 0.4–1 × In.
- Short-time protection adjustable from 0.6–10 × In.
- Instantaneous protection adjustable from 1.5–15 × In.
- Earth-fault protection adjustable from 0.1–1 × In.
- 690 V AC rated operational voltage.
- 1000 V AC rated insulation voltage.
- 42 kA Icu across 380–690 V AC.
- Ekip Measuring Pro and Network Analyzer integrated.
- Touch-sensitive display for configuration and monitoring.
Advanced LSIG Protection and Power-Quality 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 consistent 42 kA short-circuit breaking capability across the 380–690 V AC range make the 1SDA071459R1 suitable for switchboards where dependable protection and efficient use of installation space are important.
The Ekip Hi-Touch LSIG release combines adjustable overload, delayed short-circuit, instantaneous short-circuit and earth-fault protection with advanced electrical measurement. Integrated Ekip Measuring Pro and Network Analyzer functionality provides enhanced visibility of electrical parameters and power quality, making this breaker well suited to critical distribution systems requiring protection, selectivity and detailed network supervision.
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.
- Distribution systems requiring integrated earth-fault protection.
- Power systems requiring advanced measurement and power-quality analysis.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Frame | E1.2B |
| ABB order code | 1SDA071459R1 |
| EAN | 8015644753092 |
| Product type | Air circuit breaker |
| Rated current | 1250 A |
| Number of poles | 4 |
| Installation | Fixed |
| Main terminal arrangement | Front terminals |
| Trip unit | Ekip Hi-Touch LSIG |
| Release type | Solid-state electronic |
| Protection functions | Long-time (L), short-time (S), instantaneous (I), earth fault (G) |
| Overload protection adjustment | 0.4–1 × In (500–1250 A) |
| Short-time protection adjustment | 0.6–10 × In |
| Instantaneous protection adjustment | 1.5–15 × In (1875–18750 A) |
| Earth-fault protection adjustment | 0.1–1 × In |
| Integrated earth-fault protection | Yes |
| Measurement | Ekip Measuring Pro |
| Power-quality analysis | Network Analyzer |
| Configuration interface | Touch-sensitive display |
| Current type | AC |
| Rated operational voltage (Ue) | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V AC |
| Frequency | 50 / 60 Hz |
| Ultimate short-circuit breaking capacity (Icu) at 380 V AC | 42 kA |
| Ultimate short-circuit breaking capacity (Icu) at 400/415 V AC | 42 kA |
| Ultimate short-circuit breaking capacity (Icu) at 440 V AC | 42 kA |
| Ultimate short-circuit breaking capacity (Icu) at 500/525 V AC | 42 kA |
| Ultimate short-circuit breaking capacity (Icu) at 690 V AC | 42 kA |
| Auxiliary contacts | 4 |
| Breaker position indication | Open / closed |
| Mechanical durability | 20000 cycles |
| Electrical durability at ≤440 V AC | 8000 cycles |
| Electrical durability at 500–690 V AC | 6500 cycles |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the ABB 1SDA071459R1?
The ABB 1SDA071459R1 is a SACE Emax 2 E1.2B 1250 A four-pole fixed air circuit breaker with front terminals and an Ekip Hi-Touch LSIG solid-state electronic protection release.
What protection functions does the Ekip Hi-Touch LSIG trip unit provide?
The Ekip Hi-Touch LSIG release provides long-time overload protection (L), short-time selective short-circuit protection (S), instantaneous short-circuit protection (I) and earth-fault protection (G).
What is the breaking capacity of the ABB E1.2B 1250?
The E1.2B 1250 has an ultimate short-circuit breaking capacity of 42 kA at 380, 400/415, 440, 500/525 and 690 V AC.
Does the ABB 1SDA071459R1 include earth-fault protection?
Yes. The G function of the Ekip Hi-Touch LSIG release provides adjustable earth-fault protection in addition to overload, short-time and instantaneous short-circuit protection.
What is the overload setting range of the ABB 1SDA071459R1?
The long-time overload protection is adjustable from 0.4–1 × In, corresponding to 500–1250 A for this 1250 A breaker.
Does the ABB 1SDA071459R1 provide electrical measurement and power-quality analysis?
Yes. The Ekip Hi-Touch configuration incorporates Ekip Measuring Pro and Network Analyzer functionality for advanced electrical measurement and real-time power-quality analysis.
Is the ABB 1SDA071459R1 fixed or withdrawable?
This model is a fixed four-pole air circuit breaker with front terminals, intended 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, integrated measurement and dependable short-circuit performance for industrial, commercial and critical infrastructure low-voltage power distribution systems.
