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1SDA056538R1 ABB E3V800 PR121/P-LSIG 800A 4P Fixed Air Circuit Breaker
ABB 1SDA056538R1 E3V800 SACE Emax 800 A four-pole fixed air circuit breaker with rear horizontal terminals and a PR121/P-LSIG electronic release for comprehensive low-voltage power distribution protection.
£12,612.20
Why Choose the ABB E3V800 PR121/P-LSIG 800A 4P F HR Air Circuit Breaker?
The ABB E3V800 PR121/P-LSIG, order code 1SDA056538R1, 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 E3 V range, this configuration combines an 800 A rated current, four-pole construction and a sophisticated PR121/P-LSIG electronic overcurrent release.
This circuit breaker is supplied in a fixed version with rear horizontal terminals, providing a robust installation arrangement for industrial and commercial switchboards. The PR121/P-LSIG release provides long-time, short-time, instantaneous and earth-fault protection functions, enabling comprehensive protection against overloads and electrical faults.
With a rated operational voltage of up to 690 V AC, a rated insulation voltage of 1000 V and a rated impulse withstand voltage of 12 kV, the E3V800 is engineered for substantial electrical distribution duties. Its V-performance breaking capability reaches 130 kA at 220–440 V AC, providing strong fault interruption performance for installations with high prospective short-circuit currents.
Key Advantages
- High-performance ABB SACE Emax air circuit breaker for low-voltage power distribution.
- 800 A rated current for substantial industrial and commercial loads.
- Four-pole configuration provides switching and protection across all four poles.
- PR121/P-LSIG electronic release provides comprehensive overload, short-circuit and earth-fault protection.
- Fixed installation with rear horizontal terminals for switchboard integration.
- High short-circuit breaking performance with Icu up to 130 kA.
Key Features
- ABB SACE Emax E3 V circuit breaker platform.
- 800 A rated current.
- Four-pole construction.
- PR121/P-LSIG R800 electronic overcurrent release.
- Long-time, short-time, instantaneous and ground-fault protection functions.
- Fixed version for permanent switchboard installation.
- Rear horizontal terminals.
- Rated operational voltage up to 690 V AC.
- Supplied with four auxiliary contacts and open/closed circuit-breaker position indication.
- High V-class short-circuit interruption performance.
Reliable Protection for High-Power Distribution Systems
Air circuit breakers such as the ABB SACE Emax E3V800 protect major low-voltage distribution circuits against overloads, short circuits and earth faults while also providing dependable switching of high-current electrical loads. High breaking capacity is particularly important in main distribution boards and industrial installations where substantial prospective fault currents may be present.
The PR121/P-LSIG electronic release provides adjustable protection across long-time, short-time, instantaneous and ground-fault functions. Combined with the E3 V breaker platform and fixed rear-terminal arrangement, this makes the 1SDA056538R1 a capable solution for coordinated protection in industrial and commercial power distribution systems.
Typical Applications
- Main low-voltage distribution switchboards.
- Industrial power distribution systems.
- Main incomer and feeder circuit protection.
- Manufacturing and process plants.
- Commercial building electrical infrastructure.
- Power distribution centres and high-current switchgear assemblies.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA056538R1 |
| Product type | Air circuit breaker |
| Frame | E3 |
| Performance level | V |
| Rated current (In) | 800 A |
| Rated uninterrupted current (Iu) | 800 A |
| Number of poles | 4P |
| Current type | AC |
| Release | PR121/P-LSIG R800 |
| Release type | Electronic |
| Protection functions | Long-time, short-time, instantaneous and ground-fault (LSIG) |
| Version | Fixed |
| Terminal configuration | Rear horizontal terminals |
| 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) | 130 kA at 220–440 V AC; 100 kA at 500–690 V AC |
| Rated service short-circuit breaking capacity (Ics) | 100 kA at 220–440 V AC; 85 kA at 500–690 V AC |
| Rated short-time withstand current (Icw) | 85 kA for 1 s; 65 kA for 3 s |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| EAN | 8015644578787 |
Frequently Asked Questions
What is the ABB 1SDA056538R1?
The ABB 1SDA056538R1 is an E3V800 SACE Emax four-pole fixed air circuit breaker rated at 800 A, fitted with a PR121/P-LSIG electronic overcurrent release and rear horizontal terminals.
What protection functions does the PR121/P-LSIG release provide?
The PR121/P-LSIG release provides long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection functions.
Is the ABB E3V800 1SDA056538R1 fixed or withdrawable?
This particular configuration is a fixed circuit breaker with rear horizontal terminals for permanent integration into a suitable low-voltage switchboard.
What is the rated current of the ABB E3V800 PR121/P-LSIG?
The circuit breaker has a rated current of 800 A and is equipped with a PR121/P-LSIG R800 electronic release.
What is the short-circuit breaking capacity of this E3V800?
The rated ultimate short-circuit breaking capacity reaches 130 kA at 220–440 V AC and 100 kA at 500–690 V AC.
What terminals are fitted to ABB 1SDA056538R1?
The breaker is configured with rear horizontal terminals, suitable for fixed installation within compatible switchboard assemblies.
Trusted by Electrical Distribution Professionals Worldwide
ABB SACE Emax air circuit breakers are widely specified for industrial and commercial low-voltage power distribution, combining high breaking performance, electronic protection and robust switching capability for critical electrical infrastructure.
