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1SDA059179R1 ABB E1B 1000A 4-Pole Fixed Air Circuit Breaker with PR121/P-LSIG
ABB 1SDA059179R1 is a SACE Emax E1B 1000 A four-pole fixed air circuit breaker with rear horizontal terminals and a PR121/P-LSIG electronic release providing long-time, short-time, instantaneous and earth-fault protection.
£10,513.31
Why Choose the ABB 1SDA059179R1 E1B 1000 Air Circuit Breaker?
The ABB 1SDA059179R1 is a SACE Emax E1B 1000 air circuit breaker designed for protection and switching in demanding industrial low-voltage power-distribution systems. This four-pole fixed version is rated at 1000 A and is equipped with ABB's PR121/P-LSIG electronic overcurrent release.
The PR121/P-LSIG provides long-time (L), short-time (S), instantaneous (I) and earth-fault (G) protection functions, delivering comprehensive protection against overloads, short circuits and earth faults. The E1B platform provides a rated ultimate short-circuit breaking capacity of 42 kA at 400 V AC, making this breaker suitable for substantial industrial distribution duties.
Unlike the withdrawable E1B versions, the 1SDA059179R1 is a fixed circuit breaker with rear horizontal terminals. It also incorporates four auxiliary changeover contacts and open/closed position indication, supporting switchboard signalling, monitoring and control requirements.
Key Advantages
- 1000 A E1B air circuit breaker for industrial power distribution.
- PR121/P-LSIG electronic release provides comprehensive LSIG protection.
- 42 kA ultimate breaking capacity at 400 V AC.
- Four-pole configuration for compatible four-conductor distribution systems.
- Fixed installation for permanent switchboard integration.
- Rear horizontal terminals provide a defined main-circuit connection arrangement.
- Integrated earth-fault protection.
- Includes four auxiliary changeover contacts for signalling and control.
Key Features
- ABB SACE Emax E1B 1000 platform.
- 1000 A rated uninterrupted current.
- 4-pole construction.
- Fixed (F) installation.
- Rear horizontal (HR) main terminals.
- PR121/P-LSIG electronic protection release.
- LSIG protection: long-time, short-time, instantaneous and earth-fault.
- 42 kA Icu at 400 V AC.
- Rated voltage up to 690 V AC.
- Four auxiliary changeover contacts.
- Open/closed circuit-breaker position indication.
- Optional motor operator capability.
Reliable LSIG Protection for Industrial Power Distribution
The ABB PR121/P-LSIG electronic release combines four important protection functions in one circuit breaker. Long-time protection responds to sustained overload conditions, short-time and instantaneous protection address high short-circuit currents, and the integrated earth-fault function provides additional protection against faults to earth.
Combined with the E1B breaker's 1000 A rating, 42 kA breaking capacity at 400 V AC and robust fixed construction, these functions make the 1SDA059179R1 suitable for main distribution, feeder and equipment-protection duties where dependable fault interruption and comprehensive electronic protection are required.
Typical Applications
- Industrial low-voltage main distribution boards.
- Transformer and generator protection.
- Main incomer and feeder protection.
- Four-pole power-distribution systems.
- Manufacturing and process plant switchgear.
- Commercial and infrastructure electrical distribution.
- Systems requiring integrated earth-fault protection.
- OEM fixed switchboard assemblies.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA059179R1 |
| Extended product type | E1B1000PR121/P-LSIGIn=1000A4pFHR |
| Product type | Air circuit breaker |
| Frame | E1 |
| Performance level | B |
| Rated current (In) | 1000 A |
| Rated uninterrupted current (Iu) | 1000 A |
| Rated voltage | 690 V AC |
| Number of poles | 4 |
| Release | PR121/P-LSIG |
| Release type | Electronic |
| Protection functions | L, S, I, G |
| Overload release adjustment range | 400–1000 A |
| Short-time delayed short-circuit release adjustment range | 1000–10000 A |
| Instantaneous short-circuit release adjustment range | 1500–15000 A |
| Rated ultimate short-circuit breaking capacity (Icu) at 400 V AC | 42 kA |
| Earth-fault protection | Integrated |
| Installation | Fixed |
| Main terminal position | Rear |
| Terminal orientation | Horizontal rear (HR) |
| Main-circuit connection | Bolted connection |
| Auxiliary contacts | 4 changeover contacts |
| Position indication | Open / closed |
| Motor operator | Optional |
| Degree of protection | IP30 |
| Net weight | 62 kg |
| EAN | 8015644615406 |
Frequently Asked Questions
What is the ABB 1SDA059179R1?
The ABB 1SDA059179R1 is a SACE Emax E1B 1000 A four-pole fixed air circuit breaker with rear horizontal terminals and a PR121/P-LSIG electronic protection release.
What protection functions does the PR121/P-LSIG provide?
The PR121/P-LSIG provides long-time, short-time, instantaneous and earth-fault protection, collectively identified as LSIG protection.
What is the breaking capacity of the ABB 1SDA059179R1?
The E1B circuit breaker has a rated ultimate short-circuit breaking capacity of 42 kA at 400 V AC.
Is the ABB 1SDA059179R1 fixed or withdrawable?
The 1SDA059179R1 is a fixed circuit breaker and uses rear horizontal terminals for its main-circuit connections.
Does the ABB 1SDA059179R1 include earth-fault protection?
Yes. Its PR121/P-LSIG electronic release includes an integrated earth-fault protection function in addition to long-time, short-time and instantaneous protection.
Trusted ABB SACE Emax Circuit Protection
ABB SACE Emax air circuit breakers combine high-current switching, electronic protection and robust switchboard integration to provide dependable protection for demanding industrial low-voltage distribution systems.
