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1SDA056343R1 ABB E3H800 PR123/P-LSIG 800 A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA056343R1 E3H800 is an 800 A three-pole fixed SACE Emax air circuit breaker with a PR123/P-LSIG electronic overcurrent release, LSIG protection, rear horizontal terminals and up to 100 kA ultimate short-circuit breaking capacity for demanding low-voltage power distribution.
£15,383.21
Why Choose the ABB 1SDA056343R1 E3H800 Air Circuit Breaker?
The ABB 1SDA056343R1 is a high-performance SACE Emax E3H air circuit breaker (ACB) designed for protection and switching in demanding low-voltage electrical distribution systems. As part of the ABB New Emax E3 series, this three-pole fixed circuit breaker combines an 800 A rated current with the advanced PR123/P-LSIG electronic overcurrent release for comprehensive protection of industrial, commercial and infrastructure power installations.
The E3H800 is equipped with ABB's PR123/P-LSIG R800 electronic trip unit, providing long-time, short-time, instantaneous and ground-fault protection. This LSIG configuration provides comprehensive protection against overloads, short circuits and earth faults, making the breaker particularly suitable for critical distribution systems requiring advanced electronic protection and dependable fault management.
With an 800 A rated uninterrupted current, three-pole fixed construction and rear horizontal terminals, the 1SDA056343R1 is engineered for permanent integration into low-voltage switchboards. The E3H high-performance version provides an ultimate short-circuit breaking capacity of up to 100 kA and a service short-circuit breaking capacity of 85 kA, supporting installations with substantial prospective fault currents.
Key Advantages
- High-performance ABB SACE Emax E3H air circuit breaker for demanding low-voltage distribution.
- 800 A rated current for industrial, commercial and infrastructure power systems.
- PR123/P-LSIG electronic overcurrent release for advanced circuit protection.
- LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
- Ultimate short-circuit breaking capacity of up to 100 kA for high-fault-level installations.
- Three-pole fixed construction for permanent integration into compatible switchboards.
- Rear horizontal terminals facilitate connection to switchboard busbars and conductors.
- Four auxiliary contacts with open/closed position indication support monitoring and control.
Key Features
- ABB SACE Emax E3H800 series air circuit breaker.
- 800 A rated uninterrupted current.
- Three-pole configuration.
- Fixed circuit-breaker version.
- Rear flat horizontal terminals.
- PR123/P-LSIG R800 electronic overcurrent release.
- LSIG protection covering long-time, short-time, instantaneous and ground-fault protection.
- Rated operational voltage up to 690 V AC.
- Rated insulation voltage of 1000 V.
- Rated impulse withstand voltage of 12 kV.
- Rated service short-circuit breaking capacity of 85 kA.
- Four auxiliary contacts with circuit-breaker open/closed position indication.
Advanced Protection for High-Performance Power Distribution
Air circuit breakers such as the ABB E3H800 provide switching, isolation and protection for demanding low-voltage distribution systems. By detecting overload, short-circuit and ground-fault conditions, the electronic protection system enables the breaker to interrupt potentially damaging fault currents and help protect busbars, cables, transformers and connected electrical equipment.
The integrated PR123/P-LSIG electronic trip unit provides long-time, short-time, instantaneous and ground-fault protection for comprehensive fault management. Combined with the E3H breaker's 800 A current rating, ultimate breaking capacity of up to 100 kA and fixed construction, the 1SDA056343R1 is particularly suitable for critical feeders and distribution circuits requiring advanced protection and high short-circuit performance.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Manufacturing and process plants.
- Commercial and large-building electrical distribution.
- Main incomer and feeder protection.
- Generator and transformer distribution circuits.
- Installations requiring ground-fault protection.
- Power control centres and switchgear assemblies.
- Infrastructure and utility installations with high prospective fault currents.
Technical Specifications
| Product group | 310513-New Emax |
|---|---|
| Series | SACE Emax / New Emax E3 |
| ABB order code | 1SDA056343R1 |
| Product type | Air circuit breaker |
| Frame / performance type | E3H |
| Short-circuit performance level | H |
| Rated current (In) | 800 A |
| Rated operational current (Ie) | 800 A |
| Rated uninterrupted current (Iu) | 800 A |
| Number of poles | 3 |
| Mounting version | Fixed |
| Terminal arrangement | Rear flat horizontal terminals |
| Trip unit | PR123/P-LSIG R800 electronic overcurrent release |
| Release type | Electronic |
| Protection functions | LSIG – long-time, short-time, instantaneous and ground fault |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated ultimate short-circuit breaking capacity (Icu), 220–500 V AC | 100 kA |
| Rated ultimate short-circuit breaking capacity (Icu), 660–690 V AC | 85 kA |
| Rated service short-circuit breaking capacity (Ics), 220–690 V AC | 85 kA |
| Rated short-time withstand current (Icw) | 75 kA for 1 s; 65 kA for 3 s |
| Current type | AC |
| Power loss | 22 W |
| Electrical durability | 12,000 cycles |
| Electrical operating frequency | 20 cycles per hour |
| Mechanical durability | 20,000 cycles |
| Mechanical operating frequency | 60 cycles per hour |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Standards | IEC |
| Dimensions (H × W × D) | 418 × 404 × 302 mm |
| Net weight | 60 kg |
| EAN | 8015644576837 |
| Customs tariff number | 85362090 |
Frequently Asked Questions
What is the ABB 1SDA056343R1 used for?
The ABB 1SDA056343R1 is a fixed air circuit breaker used for switching and protecting low-voltage electrical distribution circuits against overload, short-circuit and ground-fault conditions.
What is the rated current of the ABB E3H800 1SDA056343R1?
The circuit breaker has a rated uninterrupted current of 800 A, making it suitable for demanding industrial and commercial power distribution applications.
What protection unit is fitted to this circuit breaker?
The 1SDA056343R1 is fitted with an ABB PR123/P-LSIG R800 electronic overcurrent release, providing long-time, short-time, instantaneous and ground-fault protection functions.
What does LSIG protection mean?
LSIG denotes long-time overload protection, short-time short-circuit protection, instantaneous short-circuit protection and ground-fault protection, providing comprehensive electronic protection for low-voltage distribution circuits.
What is the short-circuit breaking capacity of the ABB E3H800?
The E3H800 1SDA056343R1 provides an ultimate short-circuit breaking capacity of 100 kA from 220–500 V AC and 85 kA at 660–690 V AC, with a rated service short-circuit breaking capacity of 85 kA across the specified operating-voltage range.
Is the ABB 1SDA056343R1 fixed or withdrawable?
The 1SDA056343R1 is a three-pole fixed air circuit breaker with rear flat horizontal terminals for permanent integration into compatible low-voltage switchboards.
Trusted ABB Power Distribution Technology
ABB SACE Emax air circuit breakers provide robust switching and advanced electronic protection for demanding low-voltage distribution systems, combining high short-circuit performance with sophisticated protection and dependable switchgear integration.
