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1SDA056469R1 ABB E3H2500 PR122/P-LSIG 2500A 3P Fixed Air Circuit Breaker
ABB 1SDA056469R1 is a SACE Emax E3H 2500 A three-pole fixed air circuit breaker with rear horizontal terminals and a PR122/P-LSIG electronic release providing comprehensive LSIG protection for high-current low-voltage power distribution.
£18,163.43
Why Choose the ABB E3H2500 PR122/P-LSIG 2500A 3P Fixed Air Circuit Breaker?
The ABB E3H2500 PR122/P-LSIG, order code 1SDA056469R1, is a high-performance SACE Emax air circuit breaker designed for protection and switching in demanding low-voltage power distribution systems. Part of the ABB SACE Emax E3H series, this three-pole fixed circuit breaker has a rated current of 2500 A and incorporates the advanced PR122/P-LSIG electronic overcurrent release.
The PR122/P-LSIG release provides comprehensive long-time, short-time, instantaneous and earth-fault protection functions. This combination enables coordinated protection against overloads, short circuits and earth faults, making the breaker suitable for critical industrial switchboards, main distribution systems and high-current feeder applications.
This version is a fixed three-pole breaker with rear horizontal terminals and is fitted with four auxiliary contacts together with circuit-breaker open/closed position indication. With a rated operational voltage up to 690 V AC and the E3H high short-circuit performance level, it provides robust protection for demanding electrical distribution installations.
Key Advantages
- High-performance ABB SACE Emax E3H air circuit breaker for demanding low-voltage distribution systems.
- 2500 A rated current for high-current industrial and commercial applications.
- Three-pole fixed configuration for three-phase power distribution.
- PR122/P-LSIG electronic trip unit provides comprehensive overcurrent and earth-fault protection.
- LSIG functions provide long-time, short-time, instantaneous and earth-fault protection.
- Rear horizontal terminals support integration into fixed switchboard assemblies.
- Rated operational voltage up to 690 V AC.
- High E3H short-circuit performance with up to 100 kA ultimate breaking capacity.
Key Features
- ABB SACE Emax E3H series.
- 2500 A rated current.
- 3-pole fixed configuration.
- PR122/P-LSIG electronic overcurrent release.
- Long-time (L), short-time (S), instantaneous (I) and earth-fault (G) protection.
- Rear horizontal terminals.
- 690 V AC rated operational voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- 85 kA rated service short-circuit breaking capacity up to 690 V AC.
- 75 kA short-time withstand current for 1 s.
- Four auxiliary contacts and circuit-breaker open/closed position indication.
Reliable LSIG Protection for High-Current Distribution
Air circuit breakers such as the ABB SACE Emax E3H protect high-current low-voltage distribution systems against damaging electrical faults while also providing dependable switching and isolation. The E3H performance level combines high interruption capability with the flexibility required for major industrial and commercial power distribution installations.
The PR122/P-LSIG electronic release provides four principal protection functions: long-time protection against sustained overloads, short-time protection for selective short-circuit coordination, instantaneous protection against severe faults and earth-fault protection. This comprehensive protection package makes the 1SDA056469R1 particularly suitable for critical switchboards where system selectivity, equipment protection and continuity of supply are important.
Typical Applications
- Main low-voltage distribution switchboards.
- Industrial power distribution systems.
- Manufacturing and process plants.
- Commercial and infrastructure electrical installations.
- Transformer secondary protection.
- Main incoming circuit-breaker applications.
- High-current outgoing feeder protection.
- Power distribution centres and electrical substations.
Technical Specifications
| Series | SACE Emax E3H |
|---|---|
| ABB order code | 1SDA056469R1 |
| Product type | Air circuit breaker |
| Frame / performance level | E3H |
| Rated current (In) | 2500 A |
| Rated operational current (Ie) | 2500 A |
| Rated uninterrupted current (Iu) | 2500 A |
| Number of poles | 3 |
| Current type | AC |
| Version | Fixed |
| Terminal arrangement | Rear horizontal |
| Trip unit | PR122/P-LSIG |
| Release type | Electronic |
| Protection functions | Long-time (L), short-time (S), instantaneous (I), earth fault (G) |
| Rated operational voltage | up to 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated ultimate short-circuit breaking capacity (Icu) | 100 kA at 220–500 V AC; 85 kA at 660–690 V AC |
| Rated service short-circuit breaking capacity (Ics) | 85 kA up to 690 V AC |
| Rated short-time withstand current (Icw) | 75 kA for 1 s; 65 kA for 3 s |
| Power loss | 205 W |
| Electrical durability | 8,000 cycles at Ue ≤ 440 V; 7,000 cycles at 500–690 V |
| Mechanical durability | 20,000 cycles |
| Product dimensions (W × H × D) | 404 × 418 × 302 mm |
| Product net weight | 60 kg |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Standard | IEC |
| EAN | 8015644578091 |
Frequently Asked Questions
What is the ABB 1SDA056469R1?
The ABB 1SDA056469R1 is a SACE Emax E3H 2500 A three-pole fixed air circuit breaker with rear horizontal terminals and a PR122/P-LSIG electronic overcurrent release.
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 earth-fault protection.
What is the rated current of this Emax circuit breaker?
The E3H2500 is rated at 2500 A for high-current low-voltage power distribution applications.
Is the ABB 1SDA056469R1 fixed or withdrawable?
This model is a fixed three-pole circuit breaker equipped with rear horizontal power terminals.
What is the breaking capacity of the ABB E3H2500?
The breaker has an ultimate short-circuit breaking capacity of up to 100 kA at 220–500 V AC and 85 kA at 660–690 V AC, with an 85 kA service breaking capacity up to 690 V AC.
Trusted Protection for Critical Power Systems
ABB SACE Emax air circuit breakers combine high interruption performance, advanced electronic protection and robust construction to provide dependable protection for demanding industrial, commercial and infrastructure power distribution systems.
