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1SDA070827R1 ABB E1.2B 1250 Ekip G Touch LSIG 3P Fixed Air Circuit Breaker
ABB 1SDA070827R1 is a SACE Emax 2 E1.2B 1250 A three-pole fixed air circuit breaker with front terminals and an Ekip G Touch LSIG electronic trip unit for advanced generator and low-voltage power distribution protection.
£6,861.51
Why Choose the ABB E1.2B 1250 Ekip G Touch LSIG 3P Fixed Air Circuit Breaker?
The ABB 1SDA070827R1 is a high-performance SACE Emax 2 E1.2B air circuit breaker (ACB) designed for generator protection and low-voltage power distribution applications. Rated at 1250 A, this three-pole breaker incorporates an Ekip G Touch LSIG electronic trip unit providing long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection.
The Ekip G Touch release is part of ABB's generator-oriented protection platform, combining configurable LSIG protection with a touchscreen interface for setting, measurement and operating information. This makes the breaker particularly suitable for generator-fed networks and installations where protection coordination, monitoring and reliable fault management are important.
This configuration is a three-pole fixed air circuit breaker with front terminals. The E1.2B performance level provides an ultimate short-circuit breaking capacity of 42 kA at 440 V AC and a short-time withstand current of 42 kA for 1 second, while the breaker is rated for operation up to 690 V AC.
Key Advantages
- 1250 A ABB SACE Emax 2 E1.2B air circuit breaker.
- Ekip G Touch LSIG trip unit optimised for generator and power distribution protection.
- Long-time, short-time, instantaneous and earth-fault protection functions.
- Touchscreen interface for convenient protection configuration and operating information.
- 42 kA ultimate short-circuit breaking capacity at 440 V AC.
- 42 kA short-time withstand current for 1 second.
- Integrated earth-fault protection for comprehensive fault management.
- Fixed three-pole construction with front terminals for switchboard integration.
Key Features
- ABB SACE Emax 2 E1.2B air circuit breaker.
- 1250 A rated uninterrupted current.
- 3-pole configuration.
- Fixed circuit-breaker execution.
- Front terminal connection arrangement.
- Ekip G Touch LSIG solid-state electronic release.
- Long-time overload (L) protection.
- Short-time short-circuit (S) protection.
- Instantaneous short-circuit (I) protection.
- Earth-fault (G) protection.
- Four auxiliary change-over contacts for status signalling.
- Suitable for AC systems up to 690 V.
Advanced Generator and Power Distribution Protection
Generator-fed electrical systems require protection that can respond effectively to overloads, short circuits and earth faults while supporting coordination with other protective devices. The ABB Ekip G Touch platform is designed for generator applications and combines electronic protection, measurement and monitoring functions within the Emax 2 circuit-breaker architecture.
The LSIG protection package provides four complementary protection functions covering overload, delayed short-circuit, instantaneous short-circuit and earth-fault conditions. Combined with the E1.2B frame's 42 kA breaking and one-second withstand capability, the 1SDA070827R1 provides a robust solution for generator switchboards and demanding low-voltage distribution systems.
Typical Applications
- Generator protection and generator distribution switchboards.
- Low-voltage main distribution boards.
- Industrial power generation and distribution systems.
- Commercial and infrastructure electrical installations.
- Manufacturing and process facilities.
- Systems requiring selective short-circuit and earth-fault protection.
- OEM generator panels and electrical distribution assemblies.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Order code | 1SDA070827R1 |
| EAN / GTIN | 8015644746773 |
| Product type | Air circuit breaker |
| Frame | E1.2B |
| Performance level | B |
| Rated uninterrupted current (Iu) | 1250 A |
| Rated operational voltage | 690 V AC |
| Number of poles | 3 |
| Current type | AC |
| Installation | Fixed |
| Terminal arrangement | Front terminals |
| Trip unit | Ekip G Touch LSIG |
| Release type | Solid-state electronic |
| Protection functions | L (long-time overload), S (short-time short circuit), I (instantaneous short circuit), G (earth fault) |
| Overload release adjustment range | 500–1250 A |
| Short-time short-circuit adjustment range | 750–12500 A |
| Instantaneous short-circuit adjustment range | 1875–18750 A |
| Ultimate short-circuit breaking capacity (Icu) at 400–440 V AC | 42 kA |
| Short-time withstand current (Icw), 1 s | 42 kA |
| Auxiliary contacts | 4 change-over contacts |
| Electrical durability at Ue ≤ 440 V | 8000 cycles |
| Electrical durability at Ue 500–690 V | 6500 cycles |
| Mechanical durability | 20000 cycles |
| Product dimensions (W × H × D) | 214 × 295 × 184 mm |
| Product net weight | 11 kg |
| Standards / approvals | IEC |
| ABB product group | Emax2 Air Circuit Breaker |
Frequently Asked Questions
What is the ABB 1SDA070827R1?
The ABB 1SDA070827R1 is a SACE Emax 2 E1.2B 1250 A three-pole fixed air circuit breaker with front terminals and an Ekip G Touch LSIG electronic trip unit, designed particularly for generator and low-voltage power distribution protection.
What protection functions does the Ekip G Touch LSIG provide?
The Ekip G Touch LSIG provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, together with touchscreen-based configuration, measurement and operating information.
What is the breaking capacity of the ABB E1.2B 1250?
The E1.2B 1250 configuration provides an ultimate short-circuit breaking capacity of 42 kA at 400–440 V AC and a short-time withstand current of 42 kA for 1 second.
Is the ABB 1SDA070827R1 fixed or withdrawable?
The 1SDA070827R1 is a fixed three-pole air circuit breaker with front terminals.
Where is the ABB 1SDA070827R1 typically used?
It is particularly suited to generator switchboards, industrial power systems, main low-voltage distribution boards and infrastructure installations requiring generator-oriented LSIG protection and advanced electronic monitoring.
Trusted by Power Distribution Professionals Worldwide
ABB SACE Emax 2 air circuit breakers combine dependable switching performance, advanced electronic protection and generator-oriented control functionality for demanding low-voltage power distribution applications.
