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1SDA055762R1 ABB E1N 1600 PR121/P-LSIG 1600 A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA055762R1 E1N 1600 PR121/P-LSIG is a 1600 A three-pole fixed SACE Emax air circuit breaker with a PR121/P-LSIG electronic release for comprehensive low-voltage power distribution protection.
£8,995.83
Why Choose the ABB E1N 1600 PR121/P-LSIG Air Circuit Breaker?
The ABB E1N 1600 PR121/P-LSIG, order code 1SDA055762R1, is a high-performance 1600 A three-pole air circuit breaker designed for protection and switching in low-voltage power distribution systems. As part of the ABB SACE Emax series, this fixed circuit breaker combines robust power switching with the PR121/P-LSIG electronic overcurrent release for comprehensive protection of industrial electrical installations.
The breaker incorporates LSIG protection, providing long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. This combination enables effective protection against the principal electrical faults encountered in low-voltage distribution networks while providing adjustable protection characteristics for system coordination.
With a rated current of 1600 A, a three-pole fixed configuration and rear horizontal terminals, the E1N 1600 is suited to switchboards, distribution panels and industrial power systems requiring reliable high-current circuit protection. The breaker is supplied with the PR121/P-LSIG R1600 electronic trip unit, four auxiliary contacts and circuit-breaker open/closed position indication.
Key Advantages
- Heavy-duty 1600 A air circuit breaker for low-voltage power distribution.
- PR121/P-LSIG electronic trip unit provides comprehensive LSIG protection.
- Three-pole fixed construction for permanent switchboard installation.
- Rear horizontal terminals simplify integration into suitable busbar systems.
- Integrated earth-fault protection for enhanced distribution-system protection.
- Four auxiliary contacts support signalling and control functions.
Key Features
- ABB SACE Emax E1N series.
- 1600 A rated current.
- Three-pole configuration.
- Fixed-mounted circuit breaker.
- PR121/P-LSIG R1600 electronic overcurrent release.
- Long-time, short-time, instantaneous and earth-fault protection functions.
- Rear horizontal terminals.
- Four auxiliary contacts and open/closed breaker position indication.
- IP20 protection rating.
Reliable Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB SACE Emax E1N are designed to protect high-current low-voltage distribution circuits against overloads and short circuits while providing dependable switching and isolation. Their electronic protection releases allow the protection characteristics to be coordinated with downstream devices for improved selectivity and continuity of supply.
The PR121/P-LSIG release extends protection to earth faults in addition to overload and short-circuit conditions. This makes the E1N 1600 particularly suitable for industrial switchboards and distribution systems where comprehensive electrical protection, operational reliability and effective fault management are required.
Typical Applications
- Industrial low-voltage switchboards.
- Main power distribution panels.
- Manufacturing and process plants.
- Commercial and infrastructure electrical distribution.
- Generator and transformer distribution circuits.
- High-current feeder protection.
Technical Specifications
| Series | SACE Emax E1N |
|---|---|
| ABB order code | 1SDA055762R1 |
| Product type | Air circuit breaker |
| Rated current | 1600 A |
| Number of poles | 3 |
| Mounting | Fixed |
| Terminal arrangement | Rear horizontal |
| Trip unit | PR121/P-LSIG R1600 |
| Protection functions | LSIG – long-time, short-time, instantaneous and earth fault |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Protection rating | IP20 |
Frequently Asked Questions
What is the ABB 1SDA055762R1 used for?
It is a 1600 A air circuit breaker designed for switching and protection of low-voltage power distribution circuits in industrial and commercial electrical systems.
What is the rated current of this circuit breaker?
The ABB E1N 1600 PR121/P-LSIG has a rated current of 1600 A.
What protection functions does the PR121/P-LSIG provide?
The PR121/P-LSIG electronic release provides long-time, short-time, instantaneous and earth-fault protection, commonly abbreviated as LSIG.
Is the ABB 1SDA055762R1 fixed or withdrawable?
This version is a fixed three-pole circuit breaker with rear horizontal terminals.
What additional signalling features are supplied with the breaker?
The breaker is fitted with four auxiliary contacts and circuit-breaker open/closed position indication for integration with control and signalling systems.
Trusted ABB Power Distribution Technology
ABB SACE Emax air circuit breakers are engineered for dependable switching and protection in demanding low-voltage power distribution systems, combining robust construction with electronic protection for industrial and infrastructure applications.
