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.
1SDA070839R1 ABB E1.2C 1250 Ekip Hi-Touch LSIG 3P F F Air Circuit Breaker
ABB 1SDA070839R1 E1.2C is a 1250 A three-pole fixed SACE Emax 2 air circuit breaker with front terminals, an Ekip Hi-Touch LSIG electronic trip unit, 50 kA breaking capacity at 440 V AC and integrated overload, short-circuit and ground-fault protection.
£7,312.91
Why Choose the ABB E1.2C 1250 Ekip Hi-Touch LSIG 3P F F Air Circuit Breaker?
The ABB E1.2C 1250 Ekip Hi-Touch LSIG 3P F F (1SDA070839R1) is a high-performance three-pole fixed air circuit breaker (ACB) from the ABB SACE Emax 2 range, designed for demanding low-voltage power distribution systems. Built around the compact E1.2 frame, this configuration provides a rated uninterrupted current of 1250 A and combines strong short-circuit performance with ABB's advanced Ekip Hi-Touch electronic protection technology.
The integrated Ekip Hi-Touch LSIG solid-state electronic trip unit provides long-time, short-time, instantaneous and ground-fault protection. This comprehensive LSIG protection package helps safeguard cables, busbars and connected equipment against overloads, short circuits and earth-fault conditions while supporting selective protection and advanced power-management strategies.
The E1.2C performance level provides a rated ultimate short-circuit breaking capacity of 50 kA at 440 V AC together with a rated short-time withstand current of 42 kA for 1 s. Supplied as a fixed three-pole breaker with front terminals, the 1SDA070839R1 is also fitted with four auxiliary contacts and circuit breaker open/closed position indication for effective switchboard integration.
Key Advantages
- High-performance 1250 A ABB SACE Emax 2 air circuit breaker.
- Advanced Ekip Hi-Touch LSIG electronic trip unit for comprehensive circuit protection.
- Provides long-time, short-time, instantaneous and ground-fault protection.
- 50 kA ultimate short-circuit breaking capacity at 440 V AC.
- 42 kA short-time withstand current for 1 s supports selective protection strategies.
- Compact fixed three-pole construction with front terminals for permanent switchboard integration.
Key Features
- ABB SACE Emax 2 E1.2C series.
- 1250 A rated uninterrupted current.
- Ekip Hi-Touch LSIG solid-state electronic release.
- Long-time (L) overload protection.
- Short-time (S) short-circuit protection.
- Instantaneous (I) short-circuit protection.
- Ground-fault (G) protection.
- Fixed three-pole construction with front terminals and four auxiliary contacts.
Advanced Ekip Hi-Touch LSIG Circuit Protection
The Ekip Hi-Touch LSIG trip unit combines four complementary electronic protection functions. Long-time protection responds to sustained overloads, short-time protection provides a controlled response to elevated short-circuit currents, instantaneous protection rapidly interrupts severe faults, and ground-fault protection detects potentially damaging current flowing to earth. Together, these functions provide comprehensive protection for demanding low-voltage distribution networks.
Combined with the E1.2C breaker's 50 kA ultimate breaking capacity at 440 V AC and 42 kA 1-second short-time withstand capability, the Ekip Hi-Touch LSIG configuration provides a sophisticated platform for applications requiring advanced protection, selectivity and power management. Its fixed construction and front terminals make the 1SDA070839R1 particularly suitable for permanent integration into modern low-voltage switchboards.
Typical Applications
- Industrial low-voltage main switchboards.
- Main and sub-main electrical distribution systems.
- Feeder and distribution circuit protection.
- Manufacturing and process industry electrical networks.
- Commercial building and critical infrastructure power distribution.
- Systems requiring advanced LSIG protection and selective coordination.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Order code | 1SDA070839R1 |
| EAN | 8015644746896 |
| Product group | Emax2 Air Circuit Breaker |
| Product type | Air circuit breaker |
| Frame | E1.2 |
| Performance level | C |
| Rated uninterrupted current (Iu) | 1250 A |
| Trip unit rated current | 1250 A |
| Number of poles | 3 |
| Current type | AC |
| Trip unit | Ekip Hi-Touch LSIG |
| Release type | Solid-state electronic |
| Protection functions | L, S, I, G |
| Long-time protection | Overload protection |
| Short-time protection | Delayed short-circuit protection |
| Instantaneous protection | Instantaneous short-circuit protection |
| Ground-fault protection | Integrated |
| Rated operational voltage | up to 690 V AC |
| Rated ultimate short-circuit breaking capacity (Icu) at 440 V AC | 50 kA |
| Rated short-time withstand current (Icw), 1 s | 42 kA |
| Mounting type | Fixed |
| Terminal configuration | Front terminals |
| Auxiliary contacts | 4 |
| Circuit breaker position indication | Open / closed |
| Approximate product weight | 14 kg |
| Country of origin | Italy |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA070839R1?
The ABB 1SDA070839R1 is an E1.2C 1250 A three-pole fixed SACE Emax 2 air circuit breaker with front terminals and an Ekip Hi-Touch LSIG solid-state electronic trip unit.
What protection does the Ekip Hi-Touch LSIG trip unit provide?
The Ekip Hi-Touch LSIG trip unit provides long-time (L), short-time (S), instantaneous (I) and ground-fault (G) protection, helping protect low-voltage electrical systems against overloads, short circuits and earth-fault conditions.
What is the breaking capacity of the ABB E1.2C 1250?
The E1.2C 1250 has a rated ultimate short-circuit breaking capacity of 50 kA at 440 V AC.
What is the difference between Ekip Hi-Touch LSI and Ekip Hi-Touch LSIG?
Ekip Hi-Touch LSI provides long-time, short-time and instantaneous protection, while Ekip Hi-Touch LSIG additionally provides ground-fault protection. The additional G function allows the breaker to detect and respond to earth-fault currents according to the configured protection settings.
Is the ABB 1SDA070839R1 fixed or withdrawable?
The ABB 1SDA070839R1 is a fixed three-pole air circuit breaker with front terminals, designed for permanent installation within a compatible low-voltage switchboard.
Trusted ABB Emax 2 Circuit Protection
ABB SACE Emax 2 air circuit breakers combine advanced electronic protection, high short-circuit performance and compact switchgear design to provide dependable switching, isolation and circuit protection for demanding industrial, commercial and infrastructure low-voltage power distribution systems.
