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1SDA072787R1 ABB E1.2N 1000 Ekip G Touch LSIG 4P Air Circuit Breaker
ABB 1SDA072787R1 SACE Emax 2 E1.2N 1000 four-pole withdrawable air circuit breaker moving part with Ekip G Touch LSIG electronic protection, 1000 A rated current and 66 kA breaking capacity at 400–440 V AC.
£8,501.64
Why Choose the ABB 1SDA072787R1 Emax 2 Air Circuit Breaker?
The ABB 1SDA072787R1 is a high-performance SACE Emax 2 E1.2N air circuit breaker designed for advanced protection, control and management of low-voltage electrical distribution and generator systems. Configured as an E1.2N 1000 Ekip G Touch LSIG 4p WMP, this four-pole withdrawable moving part combines a 1000 A rated uninterrupted current with ABB's Ekip G Touch LSIG solid-state electronic protection release.
As part of the ABB SACE Emax 2 air circuit breaker series, the E1.2N is engineered for demanding industrial, commercial, infrastructure and power-generation applications. The Ekip G Touch LSIG trip unit provides long-time, short-time, instantaneous and earth-fault protection together with generator-oriented protection and monitoring functionality through ABB's advanced Ekip platform.
The E1.2N performance level provides a rated ultimate short-circuit breaking capacity of 66 kA at 400–440 V AC and 50 kA at 500–690 V AC, together with a rated short-time withstand current of 50 kA for 1 s. Its four-pole withdrawable construction enables convenient isolation and removal of the moving portion from the corresponding fixed part, supporting efficient inspection and maintenance in critical switchboard installations.
Key Advantages
- Advanced ABB SACE Emax 2 air circuit breaker for generator and low-voltage distribution protection.
- 1000 A rated uninterrupted current for substantial industrial and commercial electrical loads.
- 66 kA ultimate short-circuit breaking capacity at 400–440 V AC.
- 50 kA short-time withstand current for 1 s.
- Advanced Ekip G Touch LSIG electronic protection release.
- Integrated long-time, short-time, instantaneous and earth-fault protection functions.
- Generator-oriented protection and monitoring capabilities through the Ekip G platform.
- Four-pole withdrawable moving-part construction supports convenient isolation, inspection and maintenance.
Key Features
- ABB SACE Emax 2 E1.2N series.
- 1000 A rated uninterrupted current.
- 4-pole configuration.
- Ekip G Touch LSIG solid-state electronic trip unit.
- 66 kA Icu at 400–440 V AC.
- 50 kA Icu at 500–690 V AC.
- 50 kA Icw for 1 s.
- 690 V AC rated operational voltage.
- 1000 V AC rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- Long-time overload protection.
- Short-time selective short-circuit protection.
- Instantaneous short-circuit protection.
- Integrated earth-fault protection.
- Four change-over auxiliary contacts.
- Open/closed circuit-breaker position indication.
- Optional motor operating mechanism.
- Suitable for IT networks up to 690 V.
- Withdrawable moving-part design for use with the corresponding Emax 2 fixed part.
Advanced Generator and Circuit Protection
Air circuit breakers such as the ABB SACE Emax 2 E1.2N protect low-voltage electrical systems against overloads, short circuits and earth faults while providing dependable switching and isolation. With a 66 kA breaking capacity at 400–440 V AC and 50 kA short-time withstand current for 1 s, this E1.2N configuration provides robust fault performance for demanding switchboards, feeders and generator installations.
The Ekip G Touch LSIG electronic trip unit combines adjustable long-time, short-time, instantaneous and earth-fault protection with functionality developed for generator and advanced power-management applications. Its protection capabilities and the wider Emax 2 architecture make the breaker well suited to modern electrical systems where protection selectivity, operational visibility and dependable generator protection are important.
Typical Applications
- Generator and generating-set protection.
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Commercial building electrical distribution.
- Manufacturing and process facilities.
- Data centres and critical infrastructure.
- Incoming and outgoing high-current switchboard feeders.
- Electrical systems requiring integrated earth-fault protection.
- Switchboards requiring four-pole withdrawable circuit breaker assemblies.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Frame | E1.2N |
| Order code / MPN | 1SDA072787R1 |
| EAN | 8015644766375 |
| Product type | Air circuit breaker |
| Construction | Withdrawable moving part |
| Number of poles | 4 |
| Rated uninterrupted current (Iu) | 1000 A |
| Rated operational voltage (Ue) | 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) | 50 kA |
| Rated short-time withstand current (Icw) | 50 kA for 1 s / 30 kA for 3 s |
| Protection release | Ekip G Touch LSIG |
| Release type | Solid-state electronic |
| Protection functions | Long-time, short-time, instantaneous and earth fault (LSIG) |
| Overload release setting range | 400–1000 A |
| Short-time delayed short-circuit setting range | 600–10000 A |
| Instantaneous short-circuit setting range | 1500–15000 A |
| Integrated earth-fault protection | Yes |
| Auxiliary contacts | 4 change-over contacts |
| Position indication | Circuit breaker open / closed |
| Motor drive | Optional |
| Degree of protection | IP30 |
| Mechanical durability | 20,000 cycles |
| Electrical durability | 8,000 cycles |
| Suitable for IT networks | Yes, up to 690 V |
| Product dimensions | 348 × 363.5 × 271 mm |
| Product net weight | 20 kg |
| Standard | IEC 60947-2 |
| Product family | Emax 2 Air Circuit Breakers |
Frequently Asked Questions
What is the ABB 1SDA072787R1 used for?
The ABB 1SDA072787R1 is an Emax 2 air circuit breaker moving part designed to protect generators and low-voltage electrical distribution systems against overloads, short circuits and earth faults.
What is the current rating of the ABB E1.2N 1SDA072787R1?
The breaker has a rated uninterrupted current of 1000 A, making it suitable for substantial industrial, commercial, infrastructure and generator power distribution loads.
What breaking capacity does the E1.2N 1000 provide?
The E1.2N 1000 provides a rated ultimate short-circuit breaking capacity of 66 kA at 400–440 V AC and 50 kA at 500–690 V AC, together with a rated short-time withstand current of 50 kA for 1 s.
What protection release is fitted to 1SDA072787R1?
This model is fitted with the ABB Ekip G Touch LSIG electronic release, providing long-time overload, short-time selective short-circuit, instantaneous short-circuit and earth-fault protection together with generator-oriented protection functionality.
Is the ABB 1SDA072787R1 a fixed or withdrawable circuit breaker?
The 1SDA072787R1 is a four-pole withdrawable moving part for the Emax 2 E1.2N circuit breaker system and is designed for use with the corresponding fixed part in a low-voltage switchboard.
Trusted for Generator and Power Distribution Protection
ABB SACE Emax 2 air circuit breakers combine high fault interruption performance with advanced electronic protection, generator-oriented functionality and maintainable withdrawable construction for demanding low-voltage electrical distribution systems.
