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1SDA071356R1 ABB Emax 2 E1.2N 630A Ekip Touch LSIG 4P Air Circuit Breaker
ABB 1SDA071356R1 is a SACE Emax 2 E1.2N 630 A fixed four-pole air circuit breaker with front terminals, an Ekip Touch LSIG electronic trip unit, 690 V AC rated operational voltage and 66 kA breaking capacity at 400–440 V AC.
£5,793.17
Why Choose the ABB 1SDA071356R1 Emax 2 Air Circuit Breaker?
The ABB 1SDA071356R1 is a high-performance SACE Emax 2 E1.2N air circuit breaker (ACB) designed for protection, control and management of low-voltage electrical distribution systems. Rated at 630 A, this fixed four-pole circuit breaker combines ABB’s compact E1.2 frame with the advanced Ekip Touch LSIG electronic trip unit for comprehensive and configurable circuit protection.
As part of the ABB SACE Emax 2 series, the E1.2N provides dependable protection for industrial, commercial and infrastructure power systems. The Ekip Touch LSIG solid-state release provides long-time, short-time, instantaneous and ground-fault protection functions, while its touchscreen interface simplifies configuration, monitoring and interaction with the protection unit.
With a rated uninterrupted current of 630 A, a 690 V AC rated operational voltage and a rated ultimate short-circuit breaking capacity of 66 kA at 400–440 V AC, the 1SDA071356R1 is suitable for demanding low-voltage distribution applications. This version features a fixed four-pole configuration with front terminals, allowing straightforward integration into switchboards and power distribution assemblies.
Key Advantages
- Compact 630 A air circuit breaker for low-voltage power distribution.
- 66 kA ultimate short-circuit breaking capacity at 400–440 V AC.
- Advanced Ekip Touch LSIG electronic trip unit for configurable circuit protection.
- LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
- Four-pole configuration provides switching and protection for three phases and the neutral pole.
- Fixed installation with front terminals supports convenient switchboard integration.
Key Features
- ABB SACE Emax 2 E1.2N air circuit breaker.
- 630 A rated uninterrupted current.
- 690 V AC rated operational voltage.
- 66 kA Icu at 400–440 V AC.
- Ekip Touch LSIG solid-state electronic release.
- Adjustable overload, short-time, instantaneous and ground-fault protection.
- Touchscreen interface for protection configuration and monitoring.
- Fixed four-pole construction with 100% neutral pole current rating.
- Front terminals for main circuit connections.
- Four auxiliary change-over contacts with circuit-breaker open/closed position indication.
- Motor operating mechanism can be added as an option.
- Designed in accordance with IEC 60947-2.
Advanced Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB SACE Emax 2 E1.2N protect low-voltage distribution circuits against damaging overload, short-circuit and earth-fault conditions. The 1SDA071356R1 combines a compact E1.2 frame with a 630 A continuous-current rating and high short-circuit performance, making it suitable for main incomers, distribution feeders and other critical circuits within industrial and commercial switchboards.
The Ekip Touch LSIG trip unit provides adjustable long-time, short-time, instantaneous and ground-fault protection. Its electronic architecture and touchscreen interface allow protection settings to be configured to suit the electrical installation, helping engineers achieve effective protection, coordination and selectivity across complex low-voltage distribution networks.
Typical Applications
- Main incoming protection for low-voltage switchboards.
- Industrial electrical distribution systems.
- Commercial building power distribution.
- Transformer secondary and distribution protection.
- Manufacturing and process facilities.
- Data centres and critical-power installations.
- Infrastructure and utility distribution systems.
- IEC low-voltage switchgear and controlgear assemblies.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Frame / sub-type | E1.2N |
| Order code / MPN | 1SDA071356R1 |
| Product type | Air circuit breaker |
| Short-circuit performance level | N |
| Rated current (In) | 630 A |
| 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 |
| Rated ultimate short-circuit breaking capacity (Icu) at 400 V AC | 66 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 415 V AC | 66 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 440 V AC | 66 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 500–525 V AC | 50 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 690 V AC | 50 kA |
| Rated service short-circuit breaking capacity (Ics) at 400 V AC | 50 kA |
| Rated service short-circuit breaking capacity (Ics) at 415 V AC | 50 kA |
| Rated service short-circuit breaking capacity (Ics) at 440 V AC | 50 kA |
| Rated service short-circuit breaking capacity (Ics) at 500 V AC | 50 kA |
| Rated service short-circuit breaking capacity (Ics) at 690 V AC | 50 kA |
| Ics as percentage of Icu | 100% |
| Rated short-time withstand current (Icw) | 50 kA for 1 s / 30 kA for 3 s |
| Number of poles | 4 |
| Neutral pole current | 100% of Iu |
| Trip unit | Ekip Touch LSIG |
| Release type | Electronic |
| Protection functions | LSIG |
| Overload release adjustment range | 252–630 A |
| Short-time delayed short-circuit adjustment range | 378–6300 A |
| Instantaneous short-circuit adjustment range | 945–9450 A |
| Integrated earth-fault protection | Yes |
| Current type | AC |
| Installation version | Fixed |
| Terminal connection | Front |
| Terminal type | Bolt |
| Main circuit tightening torque | 45 N·m |
| Auxiliary contacts | 4 change-over contacts |
| Power loss | 31 W |
| Mechanical durability | 20,000 operating cycles |
| Dimensions (W × H × D) | 280 × 296 × 183 mm |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the ABB 1SDA071356R1 used for?
The ABB 1SDA071356R1 is a 630 A Emax 2 air circuit breaker used to protect and control low-voltage electrical distribution circuits in industrial, commercial and infrastructure switchboards.
What is the current rating of the ABB 1SDA071356R1?
The circuit breaker has a rated current and rated uninterrupted current of 630 A.
What breaking capacity does the E1.2N 630 provide?
The E1.2N version has a rated ultimate short-circuit breaking capacity of 66 kA at 400–440 V AC and 50 kA at 500–690 V AC.
What protection does the Ekip Touch LSIG trip unit provide?
The Ekip Touch LSIG electronic trip unit provides long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection functions.
Is the ABB 1SDA071356R1 a fixed or withdrawable circuit breaker?
The 1SDA071356R1 is a fixed four-pole air circuit breaker equipped with front terminals for integration into low-voltage switchboards.
Trusted High-Performance Circuit Protection
ABB SACE Emax 2 air circuit breakers combine advanced electronic protection, high short-circuit performance and flexible power-management capabilities for modern industrial, commercial and infrastructure low-voltage distribution systems.
