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1SDA056666R1 ABB E3V2500 PR121/P-LSIG 2500A 4P Fixed Rear Horizontal Air Circuit Breaker
ABB 1SDA056666R1 E3V2500 SACE Emax 2500 A four-pole fixed air circuit breaker with rear horizontal terminals and a PR121/P-LSIG R2500 electronic release for comprehensive low-voltage power distribution protection.
£22,563.92
Why Choose the ABB E3V2500 PR121/P-LSIG 2500A 4P Fixed Air Circuit Breaker?
The ABB E3V2500 PR121/P-LSIG, order code 1SDA056666R1, is a high-performance SACE Emax air circuit breaker designed for switching and comprehensive protection in demanding low-voltage power distribution systems. This E3 V configuration combines a 2500 A rated current, four-pole construction and a PR121/P-LSIG R2500 electronic overcurrent release.
Supplied as a fixed circuit breaker with rear horizontal terminals, the E3V2500 provides a robust arrangement for permanent installation in industrial, commercial and infrastructure switchboards. The PR121/P-LSIG electronic release provides long-time, short-time, instantaneous and ground-fault protection functions, helping protect distribution circuits against overloads, short circuits and earth faults.
The E3 V performance class delivers substantial fault-interruption capability, including a rated ultimate short-circuit breaking capacity of 130 kA at 400 V AC, 50 Hz. The breaker is also equipped with four auxiliary contacts and open/closed position indication for integration with switchboard signalling and control systems.
Key Advantages
- High-performance ABB SACE Emax E3 V air circuit breaker.
- 2500 A rated uninterrupted current for high-current low-voltage distribution.
- Four-pole configuration for four-pole switching and circuit protection.
- PR121/P-LSIG R2500 electronic release provides comprehensive LSIG protection.
- Fixed configuration with rear horizontal terminals for robust switchboard integration.
- High V-class fault performance with 130 kA Icu at 400 V AC.
Key Features
- ABB SACE Emax E3 V air circuit breaker platform.
- 2500 A rated uninterrupted current.
- Four-pole construction.
- PR121/P-LSIG R2500 electronic overcurrent release.
- Long-time, short-time, instantaneous and ground-fault LSIG protection functions.
- Fixed version (F).
- Rear horizontal (HR) terminals.
- Four auxiliary contacts for signalling and control.
- Open/closed circuit-breaker position indication.
- IP20 degree of protection.
Comprehensive High-Current Protection for Low-Voltage Distribution
Air circuit breakers such as the ABB SACE Emax E3V2500 provide switching and protection for main incomers, feeders and other high-current circuits in low-voltage distribution systems. The E3 V performance class provides substantial short-circuit interruption capability for installations where high prospective fault currents require robust circuit protection.
The PR121/P-LSIG electronic release combines long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection. Combined with the fixed E3 V platform and rear horizontal terminal arrangement, the 1SDA056666R1 provides comprehensive circuit protection for demanding industrial, commercial and infrastructure power distribution systems.
Typical Applications
- Main low-voltage distribution switchboards.
- Industrial power distribution systems.
- Main incomer circuit protection.
- High-current feeder protection.
- Manufacturing and process facilities.
- Commercial and infrastructure electrical distribution.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA056666R1 |
| Product group | New Emax |
| Product type | Air circuit breaker |
| Frame | E3 |
| Performance level | V |
| Rated current (In) | 2500 A |
| Rated uninterrupted current (Iu) | 2500 A |
| Number of poles | 4P |
| Current type | AC |
| Release | PR121/P-LSIG R2500 |
| Release type | Electronic overcurrent release |
| Protection functions | Long-time, short-time, instantaneous and ground-fault (LSIG) |
| Overload release adjustment range | 400–2500 A |
| Short-time delayed short-circuit adjustment range | 2500–25000 A |
| Instantaneous short-circuit adjustment range | 3750–37500 A |
| Integrated ground-fault protection | Yes |
| Version | Fixed (F) |
| Terminal configuration | Rear horizontal (HR) |
| Main circuit connection | Busbar connection |
| Rated ultimate short-circuit breaking capacity (Icu) | 130 kA at 400 V AC, 50 Hz |
| Degree of protection | IP20 |
| Auxiliary contacts | 4 (2 NO + 2 NC) |
| Position indication | Open / closed |
| Trip indication | Yes |
| Motor operator | Optional |
| Electrical durability | 8,000 cycles at Ue ≤ 440 V; 7,000 cycles at Ue 500–690 V |
| Mechanical durability | 20,000 cycles |
| Dimensions (W × H × D) | 530 × 418 × 302 mm |
| Net weight | 76 kg |
| EAN | 8015644580063 |
| Customs tariff number | 85362090 |
Frequently Asked Questions
What is the ABB 1SDA056666R1?
The ABB 1SDA056666R1 is a SACE Emax E3V2500 four-pole fixed air circuit breaker rated at 2500 A, supplied with rear horizontal terminals and a PR121/P-LSIG R2500 electronic overcurrent release.
What protection functions does the PR121/P-LSIG release provide?
The PR121/P-LSIG electronic release provides long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection functions.
Is the ABB E3V2500 1SDA056666R1 fixed or withdrawable?
This configuration is a fixed circuit breaker with rear horizontal terminals for permanent installation in a compatible low-voltage switchboard.
What is the rated current of ABB 1SDA056666R1?
The E3V2500 has a rated uninterrupted current of 2500 A and uses a PR121/P-LSIG R2500 electronic overcurrent release.
What is the short-circuit breaking capacity of ABB 1SDA056666R1?
The breaker has a rated ultimate short-circuit breaking capacity of 130 kA at 400 V AC, 50 Hz.
Does ABB 1SDA056666R1 provide ground-fault protection?
Yes. The PR121/P-LSIG release includes ground-fault protection in addition to long-time, short-time and instantaneous overcurrent protection.
Trusted by Electrical Distribution Professionals Worldwide
ABB SACE Emax air circuit breakers are widely used in industrial, commercial and infrastructure power distribution systems, combining dependable switching, configurable electronic protection and high short-circuit performance for critical low-voltage electrical installations.
