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1SDA056594R1 ABB E3V 1600 PR121/P-LSIG 1600A 3P Fixed Air Circuit Breaker
ABB 1SDA056594R1 E3V 1600 PR121/P-LSIG is a 1600 A three-pole fixed SACE Emax air circuit breaker with rear horizontal terminals and electronic LSIG protection for demanding low-voltage power distribution systems.
£11,019.74
Why Choose the ABB E3V 1600 PR121/P-LSIG Air Circuit Breaker?
The ABB E3V 1600 PR121/P-LSIG, order code 1SDA056594R1, is a high-performance fixed air circuit breaker (ACB) 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 a 1600 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 safeguard electrical installations against overloads, short circuits and ground faults. The E3V performance level provides 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 fixed breaker with rear horizontal terminals and a PR121/P-LSIG R1600 release. It is also fitted with four auxiliary contacts and open/closed circuit-breaker position indication, supporting effective integration into switchboard monitoring, signalling and control systems.
Key Advantages
- High-performance ABB SACE Emax E3V air circuit breaker for low-voltage distribution.
- 1600 A rated current for substantial industrial and commercial loads.
- PR121/P-LSIG electronic protection release with overload, short-circuit and earth-fault protection.
- 3-pole fixed configuration for permanent switchboard installation.
- Rear horizontal terminals support practical busbar and conductor connections.
- High short-circuit performance for demanding power distribution systems.
Key Features
- ABB SACE Emax E3V air circuit breaker.
- 1600 A rated current.
- 3-pole configuration.
- PR121/P-LSIG R1600 electronic overcurrent release.
- LSIG protection functions: long-time, short-time, instantaneous and earth-fault.
- Fixed (F) breaker version.
- Rear horizontal (HR) terminals.
- 130 kA ultimate short-circuit breaking capacity at 415 V AC.
- 85 kA short-time withstand current for 1 s.
- 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 PR121/P-LSIG electronic release monitors current and provides long-time, short-time, instantaneous and earth-fault protection functions, helping safeguard cables, busbars and connected equipment against damaging electrical faults.
The fixed SACE Emax configuration is suited to switchboards where a permanently installed circuit breaker is required. Rear horizontal terminals facilitate integration with suitable busbar arrangements, while the auxiliary contacts and breaker position indication support signalling, supervision and automation functions.
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 fixed switchgear assemblies.
Technical Specifications
| Series | SACE Emax E3 |
|---|---|
| Order code | 1SDA056594R1 |
| Product type | Air circuit breaker |
| Rated current (In) | 1600 A |
| Number of poles | 3P |
| Release | PR121/P-LSIG R1600 |
| Release type | Electronic overcurrent release |
| Protection functions | LSIG – long-time, short-time, instantaneous and earth-fault |
| Version | Fixed |
| Terminal arrangement | Rear horizontal |
| Rated ultimate short-circuit breaking capacity (Icu) at 415 V AC | 130 kA |
| Rated short-time withstand current (Icw) | 85 kA for 1 s |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| EAN | 8015644579340 |
| Weight | 72 kg |
Frequently Asked Questions
What is the ABB 1SDA056594R1 used for?
It is a 1600 A air circuit breaker used for switching and protecting low-voltage electrical distribution systems against overload, short-circuit and earth-fault conditions.
What protection release does the ABB 1SDA056594R1 use?
The breaker uses an ABB PR121/P-LSIG R1600 electronic release, providing long-time, short-time, instantaneous and earth-fault protection functions.
How many poles does the ABB E3V 1600 1SDA056594R1 have?
This version is a 3-pole air circuit breaker with a rated current of 1600 A.
Is the ABB 1SDA056594R1 fixed or withdrawable?
The 1SDA056594R1 is a fixed-version SACE Emax E3V circuit breaker equipped with rear horizontal terminals.
What is the short-circuit performance of the E3V 1600?
The E3V platform provides a rated ultimate short-circuit breaking capacity of 130 kA at 415 V AC and a short-time withstand current of 85 kA for 1 s.
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 construction and high short-circuit performance.
