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1SDA056789R1 ABB E4S4000 PR122/P-LSIG 4000A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA056789R1 E4S4000 PR122/P-LSIG is a 4000 A three-pole fixed SACE Emax air circuit breaker with comprehensive LSIG electronic protection and rear horizontal terminals for high-current low-voltage power distribution.
£26,509.22
Why Choose the ABB E4S4000 PR122/P-LSIG 4000A Air Circuit Breaker?
The ABB E4S4000 PR122/P-LSIG, order code 1SDA056789R1, is a high-performance SACE Emax air circuit breaker (ACB) designed for switching and protection in high-current low-voltage electrical distribution systems. Part of the proven ABB SACE Emax E4S series, this three-pole fixed circuit breaker combines a 4000 A rated uninterrupted current with the advanced PR122/P-LSIG R4000 electronic overcurrent release.
The PR122/P-LSIG electronic trip unit provides long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection. These LSIG functions provide comprehensive protection against damaging electrical faults while supporting selective and coordinated protection of switchboards, busbars, cables and connected equipment.
The E4S4000 is supplied in a three-pole fixed configuration with rear horizontal main terminals for integration into high-capacity low-voltage switchboards. With a 690 V AC rated operational voltage and 75 kA short-circuit breaking capacity across its principal AC operating voltage range, the E4S performance level is engineered for demanding industrial and infrastructure power distribution applications.
Key Advantages
- High-performance ABB SACE Emax air circuit breaker for high-current power distribution.
- 4000 A rated uninterrupted current for demanding electrical installations.
- Three-pole fixed construction for three-phase distribution networks.
- PR122/P-LSIG R4000 electronic overcurrent release.
- LSIG functions provide overload, short-time, instantaneous and ground-fault protection.
- 75 kA short-circuit breaking capacity for robust fault interruption.
- Rear horizontal terminals facilitate integration with switchboard busbar systems.
Key Features
- ABB SACE Emax E4S series.
- 4000 A rated uninterrupted current.
- Three-pole fixed construction.
- PR122/P-LSIG R4000 electronic trip unit.
- Long-time (L) overload protection.
- Short-time (S) short-circuit protection.
- Instantaneous (I) short-circuit protection.
- Ground-fault (G) protection.
- 690 V AC rated operational voltage.
- Rear horizontal main terminals.
- Fitted with four auxiliary contacts and circuit-breaker open/closed position indication.
Reliable Protection for High-Power Distribution Systems
Air circuit breakers such as the ABB SACE Emax E4S provide switching, isolation and electronic overcurrent protection for high-capacity low-voltage distribution systems. Their high current handling and short-circuit interruption capabilities help protect switchboards, busbars, cables and downstream equipment against potentially damaging electrical faults.
The PR122/P-LSIG electronic release combines overload, short-time, instantaneous and ground-fault protection in a single trip unit. Together with the E4S4000 platform's 4000 A current rating and fixed three-pole construction, this provides a robust protection solution for major industrial, commercial and infrastructure electrical distribution systems.
Typical Applications
- Main incoming protection in high-capacity low-voltage switchboards.
- Industrial power distribution systems.
- Transformer secondary protection.
- Generator and utility distribution circuits.
- High-current feeder protection.
- Manufacturing and process plants.
- Data centres and critical infrastructure.
- Large commercial and infrastructure electrical installations.
Technical Specifications
| Series | SACE Emax E4S |
|---|---|
| ABB order code | 1SDA056789R1 |
| Product type | Air circuit breaker |
| Rated uninterrupted current (Iu) | 4000 A |
| Rated operational current (Ie) | 4000 A |
| Rated operational voltage | 690 V AC |
| Number of poles | 3 |
| Execution | Fixed |
| Main terminals | Rear horizontal |
| Protection release | PR122/P-LSIG R4000 |
| Release type | Electronic |
| Protection functions | Long-time, short-time, instantaneous and ground fault (LSIG) |
| Ultimate short-circuit breaking capacity (Icu) at 400 V AC | 75 kA |
| Service short-circuit breaking capacity (Ics) at 400 V AC | 75 kA |
| Ultimate short-circuit breaking capacity (Icu) at 690 V AC | 75 kA |
| Rated short-time withstand current (Icw), 1 s | 75 kA |
| Mechanical durability | 15,000 cycles |
| Electrical durability at ≤440 V | 5,000 cycles |
| Electrical durability at 500–690 V | 4,000 cycles |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Dimensions (W × H × D) | 566 × 418 × 302 mm |
| Net weight | 81 kg |
| EAN | 8015644581299 |
Frequently Asked Questions
What is the ABB 1SDA056789R1 used for?
The ABB 1SDA056789R1 is a 4000 A three-pole fixed SACE Emax air circuit breaker designed for switching and protecting high-current low-voltage power distribution systems.
What protection functions does the PR122/P-LSIG provide?
The PR122/P-LSIG electronic release provides long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection, represented by the LSIG designation.
What is the rated current of the ABB E4S4000 1SDA056789R1?
The circuit breaker has a rated uninterrupted current of 4000 A.
What is the breaking capacity of the ABB E4S4000?
The E4S4000 has an ultimate short-circuit breaking capacity of 75 kA at 400 V AC and 75 kA at 690 V AC.
Is the ABB 1SDA056789R1 fixed or withdrawable?
The 1SDA056789R1 is a three-pole fixed circuit breaker equipped with rear horizontal main terminals for permanent switchboard installation.
Trusted Protection for Industrial Power Distribution
ABB SACE Emax air circuit breakers provide robust high-current switching and advanced electronic protection, supporting dependable operation and coordinated fault protection in demanding industrial, commercial and infrastructure power distribution systems.
