Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SDA056925R1 ABB E4V 4000 PR122/P-LSIG 4000A 4P Fixed Air Circuit Breaker
ABB 1SDA056925R1 E4V 4000 four-pole fixed SACE Emax air circuit breaker rated at 4000 A with rear horizontal terminals and a PR122/P-LSIG R4000 electronic overcurrent release.
£37,287.20
Why Choose the ABB E4V 4000 PR122/P-LSIG 4000A 4P Fixed Air Circuit Breaker?
The ABB E4V 4000 PR122/P-LSIG, order code 1SDA056925R1, is a high-performance four-pole fixed air circuit breaker (ACB) designed for protection and switching in high-current low-voltage electrical distribution systems. Part of the established ABB SACE Emax E4 series, it combines a rated current of 4000 A with the advanced PR122/P-LSIG R4000 electronic overcurrent release.
The E4V performance level is engineered for demanding power distribution installations requiring very high short-circuit interruption capability. Its PR122/P-LSIG electronic release provides long-time, short-time, instantaneous and ground-fault protection functions, helping protect conductors, switchboards and connected equipment against overloads, short circuits and earth faults while supporting selective protection coordination.
This configuration is a four-pole fixed circuit breaker with rear horizontal terminals. It is fitted with four auxiliary contacts and circuit-breaker open/closed position indication, providing a robust solution for major switchboards, transformer distribution systems, industrial power centres and other critical high-current installations.
Key Advantages
- High-capacity 4000 A air circuit breaker for demanding low-voltage power distribution.
- Four-pole fixed configuration for comprehensive switching and protection.
- Advanced PR122/P-LSIG R4000 electronic overcurrent release.
- Provides long-time, short-time, instantaneous and ground-fault protection.
- V performance class designed for systems with high prospective short-circuit currents.
- Rear horizontal terminals support integration into high-current switchboard assemblies.
- Four auxiliary contacts provide circuit-breaker status signalling.
Key Features
- ABB SACE Emax E4V air circuit breaker.
- 4000 A rated current.
- 4-pole configuration.
- PR122/P-LSIG R4000 electronic overcurrent release.
- Fixed circuit-breaker version.
- Rear horizontal terminal connections.
- Long-time overload protection.
- Short-time short-circuit protection.
- Instantaneous short-circuit protection.
- Ground-fault protection.
- Four auxiliary contacts for status signalling.
- Open/closed circuit-breaker position indication.
Advanced Protection for High-Current Power Distribution
Air circuit breakers such as the ABB E4V 4000 provide primary switching and protection for high-current low-voltage electrical systems. The E4V performance class is intended for demanding installations with substantial prospective fault currents, making this 4000 A SACE Emax breaker suitable for major industrial, commercial and infrastructure distribution networks.
The PR122/P-LSIG electronic release provides comprehensive LSIG protection by responding to long-time overloads, short-time faults, severe instantaneous short circuits and ground faults. Combined with the robust fixed Emax architecture, these protection functions support dependable fault clearance and coordinated protection throughout critical electrical distribution systems.
Typical Applications
- Main incoming protection in high-capacity low-voltage switchboards.
- Industrial power distribution and process plants.
- Transformer secondary and distribution protection.
- Generator and utility distribution systems.
- Data centres and critical infrastructure power systems.
- Large commercial and manufacturing facilities.
- High-current feeder and distribution protection.
Technical Specifications
| Product family | SACE Emax |
|---|---|
| Series / frame | E4V |
| ABB order code | 1SDA056925R1 |
| EAN | 8015644582654 |
| Product type | Air circuit breaker (ACB) |
| Rated current (In) | 4000 A |
| Number of poles | 4 |
| Version | Fixed |
| Terminal connection | Rear horizontal |
| Trip unit | PR122/P-LSIG electronic overcurrent release |
| Rating plug | R4000 |
| Protection functions | Long-time, short-time, instantaneous and ground fault (LSIG) |
| Current type | AC |
| Short-circuit performance level | V |
| Mechanical durability | 15,000 operating cycles |
| Electrical durability at ≤440 V | 5,000 operating cycles |
| Electrical durability at 500–690 V | 4,000 operating cycles |
| Operating frequency | 10 cycles per hour |
| Dimensions (W × H × D) | 656 × 418 × 302 mm |
| Product net weight | 92 kg |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
Frequently Asked Questions
What is the ABB 1SDA056925R1?
The ABB 1SDA056925R1 is an E4V 4000 four-pole fixed SACE Emax air circuit breaker rated at 4000 A and equipped with a PR122/P-LSIG R4000 electronic overcurrent release.
What protection functions does the PR122/P-LSIG release provide?
The PR122/P-LSIG provides long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection functions.
Is the ABB 1SDA056925R1 fixed or withdrawable?
This model is a fixed four-pole air circuit breaker with rear horizontal terminals for integration into compatible low-voltage switchgear assemblies.
Does the ABB 1SDA056925R1 include auxiliary contacts?
Yes. The circuit breaker is fitted with four auxiliary contacts together with circuit-breaker open/closed position indication.
Where is the E4V 4000 PR122/P-LSIG typically used?
It is designed for high-current low-voltage distribution applications including industrial switchboards, transformer distribution systems, power centres, data centres, large commercial facilities and critical infrastructure installations.
Trusted Protection for Critical Power Systems
ABB SACE Emax air circuit breakers provide high-performance switching and protection for demanding low-voltage power distribution systems, combining high current capacity, advanced electronic LSIG protection and robust construction for critical switchgear applications.
