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1SDA072703R1 ABB E1.2N 630 Ekip Dip LSIG 4p WMP Air Circuit Breaker
ABB 1SDA072703R1 SACE Emax 2 E1.2N 630 A four-pole withdrawable air circuit breaker mobile part with Ekip Dip LSIG electronic protection, 690 V AC rated operational voltage, 66 kA short-circuit breaking capacity at 400 V AC and integrated earth-fault protection.
£5,748.02
Why Choose the ABB E1.2N 630 Ekip Dip LSIG 4p WMP Air Circuit Breaker?
The ABB 1SDA072703R1 is a SACE Emax 2 E1.2N air circuit breaker (ACB) designed for comprehensive protection and switching in low-voltage electrical distribution systems. Rated at 630 A, this four-pole breaker combines ABB’s compact E1.2N frame with an Ekip Dip LSIG solid-state electronic trip unit providing long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection.
As part of the ABB SACE Emax 2 air circuit breaker series, the E1.2N combines compact construction with high short-circuit performance and flexible switchboard integration. Its four-pole configuration provides switching of all three phases and the neutral conductor, while the LSIG protection functions provide comprehensive coverage for distribution systems requiring overload, selective short-circuit and earth-fault protection.
The 1SDA072703R1 is a four-pole withdrawable mobile part (WMP) with a rated uninterrupted current of 630 A and rated operational voltage of 690 V AC. The E1.2N performance level provides an ultimate short-circuit breaking capacity of 66 kA at 400 V AC and a rated short-time withstand current of 50 kA for 1 second, supporting dependable protection and selective coordination in demanding low-voltage networks.
Key Advantages
- 630 A rated uninterrupted current for low-voltage main and feeder protection.
- 66 kA ultimate short-circuit breaking capacity at 400 V AC for robust fault interruption.
- 50 kA short-time withstand current for 1 second supports selective protection strategies.
- Ekip Dip LSIG solid-state electronic trip unit provides comprehensive circuit protection.
- Long-time, short-time, instantaneous and earth-fault protection covers major distribution-system fault conditions.
- Four-pole configuration with 100% neutral-pole current capability suits three-phase four-wire networks.
- Withdrawable mobile-part construction facilitates isolation, inspection, servicing and switchboard maintenance.
Key Features
- ABB SACE Emax 2 E1.2N series.
- 630 A rated uninterrupted current.
- 690 V AC rated operational voltage.
- Four-pole configuration.
- 100% neutral-pole current rating.
- N short-circuit performance level.
- 66 kA Icu at 400 V AC.
- 50 kA Icw for 1 second.
- Ekip Dip LSIG solid-state electronic trip unit.
- LSIG protection provides long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection.
- 252 A minimum overload release setting.
- 378 A minimum short-time delayed short-circuit setting.
- 945 A minimum instantaneous short-circuit setting.
- Withdrawable mobile part (WMP) configuration.
- Four auxiliary change-over contacts for status and control applications.
- IP30 degree of protection.
Comprehensive LSIG Four-Pole Protection
The ABB SACE Emax 2 E1.2N provides compact air circuit breaker protection for low-voltage networks requiring dependable interruption of overload, short-circuit and earth-fault currents. With a rated current of 630 A, an ultimate breaking capacity of 66 kA at 400 V AC and a short-time withstand capability of 50 kA for 1 second, this configuration combines compact dimensions with substantial fault-current performance.
The Ekip Dip LSIG solid-state electronic trip unit provides long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection. The combination of short-time and earth-fault functions supports selective coordination and comprehensive fault protection, while the four-pole arrangement with a 100% rated neutral makes the breaker suitable for three-phase four-wire electrical distribution systems.
Typical Applications
- Low-voltage main and sub-distribution switchboards.
- Three-phase four-wire electrical distribution systems.
- Commercial building power distribution.
- Industrial feeder and distribution protection.
- Transformer secondary distribution systems.
- Infrastructure and utility installations.
- Systems requiring selective short-circuit and earth-fault protection.
- Switchboards requiring withdrawable four-pole circuit breaker construction.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Frame | E1.2 |
| Order code / SKU | 1SDA072703R1 |
| EAN | 8015644765538 |
| Product type | Air circuit breaker |
| Rated uninterrupted current (Iu) | 630 A |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V AC |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Number of poles | 4 |
| Neutral-pole current | 100% of Iu |
| Current type | AC |
| Performance level | N |
| Trip unit | Ekip Dip |
| Release type | Solid-state electronic |
| Protection functions | LSIG |
| Overload release setting | from 252 A |
| Short-time delayed short-circuit setting | from 378 A |
| Instantaneous short-circuit setting | from 945 A |
| Ultimate short-circuit breaking capacity (Icu) at 400 V AC | 66 kA |
| Rated short-time withstand current (Icw, 1 s) | 50 kA |
| Integrated earth-fault protection | Yes |
| Execution | Withdrawable mobile part |
| Main circuit connection | Connection through separate fixed part |
| Auxiliary change-over contacts | 4 |
| Open / closed position indication | Yes |
| Control element | Push button |
| Integrated motor operator | No |
| Motor operator | Optional |
| DIN rail mounting | No |
| Degree of protection | IP30 |
| Power loss | 62 W |
| Electrical durability at ≤440 V AC | 8000 operations |
| Electrical durability at 500–690 V AC | 8000 operations |
| Mechanical durability | 20000 operations |
| Dimensions (W × H × D) | 348 × 363.5 × 271 mm |
| Net weight | 20 kg |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the ABB 1SDA072703R1?
The ABB 1SDA072703R1 is a four-pole SACE Emax 2 E1.2N withdrawable air circuit breaker mobile part rated at 630 A and equipped with an Ekip Dip LSIG solid-state electronic trip unit.
What are the current and voltage ratings of the ABB E1.2N 1SDA072703R1?
The breaker has a rated uninterrupted current of 630 A and a rated operational voltage of 690 V AC.
What is the breaking capacity of the ABB E1.2N 630?
The E1.2N 630 provides an ultimate short-circuit breaking capacity of 66 kA at 400 V AC and a rated short-time withstand current of 50 kA for 1 second.
What does Ekip Dip LSIG mean?
Ekip Dip is ABB’s solid-state electronic trip unit, while LSIG denotes long-time, short-time, instantaneous and earth-fault protection. This provides comprehensive protection against overload, short-circuit and earth-fault conditions.
Is the ABB 1SDA072703R1 fixed or withdrawable?
The 1SDA072703R1 is a four-pole withdrawable mobile part designed for connection through the corresponding Emax 2 E1.2 fixed part, allowing the breaker to be isolated and withdrawn from the switchboard for inspection, servicing and maintenance.
Trusted for Comprehensive Low-Voltage Power Protection
ABB SACE Emax 2 air circuit breakers combine compact construction, robust short-circuit performance and comprehensive LSIG electronic protection for commercial, industrial and infrastructure low-voltage power distribution systems requiring reliable selectivity and flexible withdrawable switchboard integration.
