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1SDA070703R1 ABB E1.2B 630 Ekip Dip LSIG 3P Fixed Air Circuit Breaker
ABB 1SDA070703R1 is an Emax 2 E1.2B 630 A three-pole fixed air circuit breaker with front terminals and an Ekip Dip LSIG electronic trip unit for comprehensive low-voltage power distribution protection.
£3,957.41
Why Choose the ABB E1.2B 630 Ekip Dip LSIG 3P Fixed Air Circuit Breaker?
The ABB 1SDA070703R1 is a high-performance Emax 2 E1.2B air circuit breaker (ACB) designed for protection and switching in low-voltage power distribution systems. Rated at 630 A, this three-pole breaker incorporates an Ekip Dip LSIG electronic trip unit providing long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection.
As part of the advanced ABB Emax 2 range, the E1.2B combines compact construction with electronic protection technology for industrial, commercial and infrastructure switchboards. The Ekip Dip LSIG release provides a comprehensive set of protection functions, helping safeguard cables, busbars and connected equipment against a wide range of electrical faults.
This configuration is a three-pole fixed circuit breaker with front terminals. The E1.2B performance class provides a rated ultimate short-circuit breaking capacity of 42 kA at 440 V AC and a short-time withstand current of 42 kA for 1 second, with a rated operational voltage up to 690 V AC.
Key Advantages
- Compact ABB Emax 2 E1.2B air circuit breaker for low-voltage power distribution.
- 630 A rated uninterrupted current for industrial and commercial electrical systems.
- Ekip Dip LSIG electronic trip unit provides comprehensive overcurrent and earth-fault protection.
- 42 kA ultimate short-circuit breaking capacity at 440 V AC.
- 42 kA short-time withstand current for 1 second.
- Fixed three-pole construction with front terminals for switchboard installation.
Key Features
- ABB Emax 2 E1.2B air circuit breaker.
- 630 A rated uninterrupted current.
- 3-pole configuration.
- Fixed circuit-breaker version.
- Front terminal connection arrangement.
- Ekip Dip LSIG solid-state electronic protection release.
- Long-time overload (L) protection.
- Short-time short-circuit (S) protection.
- Instantaneous short-circuit (I) protection.
- Earth-fault (G) protection.
- Rated operational voltage up to 690 V AC.
Comprehensive LSIG Protection for Power Distribution
Air circuit breakers protect low-voltage distribution systems against damaging overcurrent and fault conditions while providing switching and isolation functions. The ABB Emax 2 platform combines strong short-circuit performance with electronic protection and a compact architecture suitable for modern switchboard designs.
The Ekip Dip LSIG trip unit fitted to this E1.2B configuration provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. This combination supports comprehensive protection of distribution circuits while allowing the breaker to be incorporated into coordinated industrial and commercial electrical systems.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Commercial building electrical distribution.
- Manufacturing and process facilities.
- Infrastructure and utility installations.
- OEM switchboards and electrical distribution assemblies.
Technical Specifications
| Series | Emax 2 |
|---|---|
| Order code | 1SDA070703R1 |
| EAN | 8015644745530 |
| Product type | Air circuit breaker |
| Frame | E1.2B |
| Short-circuit performance level | B |
| Rated uninterrupted current (Iu) | 630 A |
| Rated operational voltage | up to 690 V AC |
| Number of poles | 3 |
| Installation | Fixed |
| Terminal arrangement | Front terminals |
| Terminal type | Bolted |
| Trip unit | Ekip Dip LSIG |
| Release type | Electronic |
| Protection functions | L (overload), S (short-time short circuit), I (instantaneous short circuit), G (earth fault) |
| Ultimate short-circuit breaking capacity (Icu) at 440 V AC | 42 kA |
| Service short-circuit breaking capacity (Ics) | 100% of Icu |
| Short-time withstand current (Icw), 1 s | 42 kA |
| Short-time withstand current (Icw), 3 s | 24 kA |
| Standard | IEC |
| ABB product group | Emax2 Air Circuit Breaker |
Frequently Asked Questions
What is the ABB 1SDA070703R1?
The ABB 1SDA070703R1 is an Emax 2 E1.2B 630 A three-pole fixed air circuit breaker with front terminals and an Ekip Dip LSIG electronic trip unit.
What protection functions does the Ekip Dip LSIG trip unit provide?
The Ekip Dip LSIG provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection.
What is the breaking capacity of the ABB E1.2B 630?
The E1.2B configuration has an ultimate short-circuit breaking capacity of 42 kA at 440 V AC.
Is the ABB 1SDA070703R1 fixed or withdrawable?
The 1SDA070703R1 is a fixed three-pole air circuit breaker with front terminals.
What is the rated operational voltage of the ABB 1SDA070703R1?
The circuit breaker is rated for operation at voltages up to 690 V AC, making it suitable for a wide range of low-voltage industrial distribution systems.
Trusted by Power Distribution Professionals Worldwide
ABB Emax 2 air circuit breakers are engineered for dependable switching and protection in low-voltage power distribution systems, combining compact construction, high short-circuit performance and advanced electronic protection.
