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1SDA056546R1 ABB E3V 800 PR121/P-LSIG 800A 3P Withdrawable Air Circuit Breaker
ABB 1SDA056546R1 E3V 800 PR121/P-LSIG is an 800 A three-pole withdrawable SACE Emax air circuit breaker moving part with electronic LSIG protection for demanding low-voltage power distribution systems.
£10,288.21
Why Choose the ABB E3V 800 PR121/P-LSIG Air Circuit Breaker?
The ABB E3V 800 PR121/P-LSIG, order code 1SDA056546R1, is a high-performance withdrawable air circuit breaker (ACB) moving part designed for protection and switching in demanding low-voltage electrical distribution systems. As part of the proven ABB SACE Emax E3 series, this three-pole breaker combines an 800 A rated current with the PR121/P-LSIG electronic overcurrent release.
The PR121/P-LSIG trip unit provides long-time, short-time, instantaneous and earth-fault protection, helping protect electrical installations against overloads, short circuits and ground faults. The E3V performance level delivers high short-circuit capability for industrial switchboards, power distribution assemblies and infrastructure applications where dependable protection and service continuity are essential.
This version is configured as a 3-pole withdrawable breaker moving part (W MP) with a rated operational voltage up to 690 V AC. It is supplied with four auxiliary contacts and open/closed position indication, while its withdrawable construction facilitates inspection, maintenance and replacement within compatible SACE Emax switchgear.
Key Advantages
- High-performance ABB SACE Emax air circuit breaker moving part for low-voltage distribution.
- 800 A rated current for substantial industrial and commercial loads.
- PR121/P-LSIG electronic protection release with comprehensive overcurrent and earth-fault protection.
- 3-pole withdrawable moving-part configuration supports maintainable switchboard designs.
- Rated operational voltage up to 690 V AC.
- High short-circuit performance for demanding electrical distribution systems.
Key Features
- ABB SACE Emax E3V air circuit breaker moving part.
- 800 A rated current.
- 3-pole configuration.
- PR121/P-LSIG electronic overcurrent release.
- LSIG protection functions: long-time, short-time, instantaneous and earth-fault.
- Withdrawable (W) moving part (MP) version.
- 690 V AC rated operational voltage.
- 100 kA service short-circuit breaking capacity at 400 V AC.
- 130 kA ultimate short-circuit breaking capacity at 400 V AC.
- Fitted with four auxiliary contacts and open/closed position indication.
Reliable Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB E3V provide switching and protection for high-current low-voltage distribution circuits. The electronic PR121/P-LSIG release monitors current and provides configurable protection against overloads, short circuits and earth faults, supporting reliable operation of critical electrical installations.
The withdrawable SACE Emax design is particularly suited to switchboards where serviceability and operational flexibility are important. The moving breaker section can be disconnected and withdrawn from its compatible fixed part, simplifying inspection and maintenance in industrial and commercial power distribution installations.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Manufacturing and process plants.
- Commercial and infrastructure electrical installations.
- Generator and transformer distribution systems.
- Power control centres and withdrawable switchgear assemblies.
Technical Specifications
| Series | SACE Emax E3 |
|---|---|
| Order code | 1SDA056546R1 |
| Product type | Air circuit breaker moving part |
| Rated current (In) | 800 A |
| Number of poles | 3P |
| Release | PR121/P-LSIG |
| Release type | Electronic |
| Protection functions | LSIG – long-time, short-time, instantaneous and earth-fault |
| Version | Withdrawable (W), moving part (MP) |
| Rated operational voltage | 690 V AC |
| Rated service short-circuit breaking capacity (Ics) at 400 V AC | 100 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 400 V AC | 130 kA |
| Rated service short-circuit breaking capacity (Ics) at 690 V AC | 85 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 690 V AC | 100 kA |
| Rated short-time withstand current (Icw) | 85 kA for 1 s |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Standard | IEC |
| EAN | 8015644578862 |
| Weight | 77 kg |
Frequently Asked Questions
What is the ABB 1SDA056546R1 used for?
It is an 800 A withdrawable air circuit breaker moving part used for switching and protecting low-voltage electrical distribution systems against overload, short-circuit and earth-fault conditions.
What protection release does this circuit breaker use?
The breaker uses an ABB PR121/P-LSIG electronic release, providing long-time, short-time, instantaneous and earth-fault protection functions.
How many poles does the ABB E3V 800 1SDA056546R1 have?
This version is a 3-pole air circuit breaker moving part with a rated current of 800 A.
Is the ABB 1SDA056546R1 fixed or withdrawable?
The 1SDA056546R1 is a withdrawable moving-part (W MP) version designed for use with the corresponding ABB SACE Emax fixed part.
What is the rated operational voltage of this breaker?
The ABB E3V 800 PR121/P-LSIG has a rated operational voltage of up to 690 V AC.
Trusted ABB Power Distribution Protection
ABB SACE Emax air circuit breakers are engineered for dependable protection and switching in demanding low-voltage power distribution systems, combining advanced electronic protection with robust and serviceable withdrawable switchgear construction.
