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1SDA059221R1 ABB E1N1000 PR121/P-LSIG 1000A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA059221R1 is a SACE Emax E1N 1000 A three-pole fixed air circuit breaker with rear horizontal terminals, a PR121/P-LSIG R1000 electronic overcurrent release and integrated LSIG protection.
£8,609.46
Why Choose the ABB E1N1000 PR121/P-LSIG 1000A 3-Pole Fixed Circuit Breaker?
The ABB E1N1000 PR121/P-LSIG, order code 1SDA059221R1, is a high-performance SACE Emax air circuit breaker designed for protection and switching in demanding low-voltage electrical distribution systems. Part of the proven ABB SACE Emax E1N series, this three-pole fixed circuit breaker has a rated current of 1000 A and incorporates the PR121/P-LSIG R1000 electronic overcurrent release.
The PR121/P-LSIG protection unit provides comprehensive long-time, short-time, instantaneous and earth-fault protection, helping safeguard electrical installations against overloads, short circuits and ground faults. Its adjustable electronic protection makes the E1N1000 suitable for industrial switchboards, power distribution assemblies and infrastructure installations requiring dependable high-current circuit protection.
This version is a three-pole fixed circuit breaker with rear horizontal terminals. It is fitted with four auxiliary change-over contacts and circuit-breaker open/closed position indication, supporting status monitoring and integration into industrial control and power distribution systems.
Key Advantages
- Heavy-duty ABB SACE Emax air circuit breaker for low-voltage power distribution.
- 1000 A rated current for high-current industrial installations.
- Three-pole configuration suitable for three-phase distribution systems.
- PR121/P-LSIG electronic overcurrent release for comprehensive circuit protection.
- LSIG functionality provides overload, short-time, instantaneous and earth-fault protection.
- Fixed construction with rear horizontal terminals for switchboard integration.
- Four auxiliary change-over contacts support breaker status signalling.
Key Features
- ABB SACE Emax E1N air circuit breaker platform.
- 1000 A rated current.
- 3-pole configuration.
- PR121/P-LSIG R1000 electronic overcurrent release.
- Long-time L overload protection.
- Short-time S short-circuit protection.
- Instantaneous I short-circuit protection.
- Earth-fault G protection.
- Fixed circuit-breaker execution.
- Rear horizontal terminals.
- Four auxiliary change-over contacts and open/closed position indication.
Reliable Protection for Low-Voltage Power Distribution
ABB SACE Emax air circuit breakers are engineered to provide dependable switching and protection for high-current low-voltage distribution circuits. The PR121/P electronic trip unit monitors current conditions and initiates breaker operation when configured protection thresholds are exceeded, helping protect cables, busbars and connected electrical equipment.
The LSIG protection configuration combines long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. Together with the three-pole fixed construction and rear horizontal terminals, the E1N1000 provides a robust solution for switchboards requiring comprehensive electronic protection and reliable high-current switching.
Typical Applications
- Industrial low-voltage distribution switchboards.
- Main and secondary electrical distribution systems.
- Manufacturing and process plant power systems.
- Commercial and infrastructure power distribution.
- High-current industrial distribution assemblies.
- Fixed switchgear requiring comprehensive LSIG protection.
Technical Specifications
| Series | SACE Emax E1N |
|---|---|
| ABB order code | 1SDA059221R1 |
| Product type | Air circuit breaker |
| Rated current | 1000 A |
| Number of poles | 3 |
| Trip unit | PR121/P-LSIG R1000 |
| Protection functions | L, S, I, G |
| Earth-fault protection | Integrated |
| Execution | Fixed |
| Terminal arrangement | Rear horizontal |
| Rated voltage | 690 V |
| Rated short-circuit breaking capacity Icu at 400 V, 50 Hz | 50 kA |
| Overload release adjustment range | 400–1000 A |
| Short-time short-circuit release adjustment range | 1000–10000 A |
| Instantaneous short-circuit release adjustment range | 1500–15000 A |
| Auxiliary contacts | 4 change-over contacts |
| Position indication | Circuit breaker open/closed |
| Motor drive | Optional |
| Weight | 50 kg |
| EAN | 8015644615826 |
Frequently Asked Questions
What is the ABB 1SDA059221R1?
The ABB 1SDA059221R1 is a three-pole, 1000 A SACE Emax E1N fixed air circuit breaker with rear horizontal terminals and a PR121/P-LSIG R1000 electronic overcurrent release.
What is the rated current of the ABB E1N1000?
The E1N1000 has a rated current of 1000 A, with an overload release adjustment range of 400–1000 A.
What protection functions does the PR121/P-LSIG provide?
The PR121/P-LSIG provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, represented by the L, S, I and G functions.
Is ABB 1SDA059221R1 fixed or withdrawable?
The 1SDA059221R1 is a fixed three-pole circuit breaker equipped with rear horizontal main terminals.
Does the ABB 1SDA059221R1 include auxiliary contacts?
Yes. This configuration is fitted with four auxiliary change-over contacts and provides circuit-breaker open/closed position indication.
Trusted ABB Power Distribution Technology
ABB SACE Emax air circuit breakers are designed for dependable protection and switching in demanding low-voltage power distribution systems, combining electronic overcurrent and earth-fault protection with robust construction and flexible switchgear integration.
