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1SDA059353R1 ABB E3H 1000 PR121/P-LSIG 1000 A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA059353R1 is a SACE Emax E3H 1000 A three-pole fixed air circuit breaker with horizontal rear terminals and a PR121/P-LSIG electronic trip unit for comprehensive low-voltage power distribution protection.
£10,126.03
Why Choose the ABB 1SDA059353R1 E3H 1000 Air Circuit Breaker?
The ABB 1SDA059353R1 is a high-performance SACE Emax E3H 1000 air circuit breaker designed for protection, switching and isolation in demanding low-voltage power distribution systems. Configured as E3H 1000 PR121/P-LSIG In=1000A 3p F HR, it combines a 1000 A rated current, three-pole construction and ABB's PR121/P-LSIG electronic overcurrent release.
The PR121/P-LSIG release provides long-time, short-time, instantaneous and ground-fault protection functions, delivering comprehensive electronic protection against overload, short-circuit and earth-fault conditions. The E3H performance class provides a rated ultimate short-circuit breaking capacity of 100 kA at 400 V AC, 50 Hz, making the breaker suitable for electrical systems with demanding prospective fault levels.
The 1SDA059353R1 features a three-pole fixed construction with horizontal rear terminals for permanent integration into low-voltage switchboards. It is fitted with four auxiliary contacts and circuit-breaker open/closed position indication, combining high-current protection with useful switchboard status signalling.
Key Advantages
- High-performance 1000 A E3H air circuit breaker for demanding low-voltage distribution.
- Three-pole configuration suitable for three-phase electrical systems.
- PR121/P-LSIG electronic overcurrent release.
- Long-time, short-time, instantaneous and ground-fault protection.
- Fixed construction for permanent switchboard installation.
- Horizontal rear terminals for practical rear busbar or conductor connections.
- 100 kA ultimate short-circuit breaking capacity at 400 V AC, 50 Hz.
- Part of the proven ABB SACE Emax air circuit breaker platform.
Key Features
- ABB SACE Emax E3H 1000 air circuit breaker.
- 1000 A rated current.
- Three-pole construction.
- PR121/P-LSIG electronic trip unit.
- LSIG protection functions for long-time, short-time, instantaneous and ground-fault protection.
- Fixed (F) execution.
- Horizontal rear (HR) terminals.
- 690 V AC rated operational voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- Four auxiliary contacts with open/closed position indication.
Reliable Protection for Low-Voltage Power Distribution
The ABB SACE Emax E3H is engineered to protect high-current low-voltage distribution circuits while providing dependable switching and isolation. Its PR121/P-LSIG electronic release combines long-time overload protection, short-time selective protection, instantaneous short-circuit protection and ground-fault protection, helping safeguard feeders, busbars, switchgear and connected electrical equipment.
The fixed three-pole construction of the 1SDA059353R1 makes it particularly suitable for permanent installation in industrial and commercial switchboards. Horizontal rear terminals provide a practical interface for rear connections, while the E3H performance class and LSIG protection functions support applications requiring high fault-interruption capability and comprehensive electronic circuit protection.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Commercial and infrastructure electrical distribution.
- Manufacturing and process plant switchgear.
- Protection of high-current feeders and distribution circuits.
- Three-phase systems requiring ground-fault protection.
- Fixed switchgear with demanding short-circuit protection requirements.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA059353R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Frame | E3H |
| Rated current | 1000 A |
| Rated uninterrupted current | 1000 A |
| Number of poles | 3 |
| Trip unit | PR121/P-LSIG |
| Release type | Electronic |
| Protection functions | Long-time, short-time, instantaneous and ground fault (LSIG) |
| Execution | Fixed |
| Terminal arrangement | Horizontal rear (HR) |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage | 1000 V |
| Rated impulse withstand voltage | 12 kV |
| Rated ultimate short-circuit breaking capacity | 100 kA at 400 V AC, 50 Hz |
| Rated service short-circuit breaking capacity | 85 kA at 400 V AC, 50 Hz |
| Rated short-time withstand current | 75 kA for 1 s |
| Overload release adjustment range | 400–1000 A |
| Short-time delayed short-circuit adjustment range | 1000–10000 A |
| Instantaneous short-circuit adjustment range | 1500–15000 A |
| Ground-fault protection | Integrated |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Electrical durability | 12000 cycles |
| Mechanical durability | 20000 cycles |
| Power loss | 38.4 W |
| Product dimensions (W × H × D) | 404 × 418 × 302 mm |
| Product net weight | 60 kg |
| EAN | 8015644617141 |
Frequently Asked Questions
What is the ABB 1SDA059353R1?
The ABB 1SDA059353R1 is a SACE Emax E3H 1000 three-pole fixed air circuit breaker with horizontal rear terminals and a PR121/P-LSIG electronic overcurrent release.
What is the rated current of the ABB 1SDA059353R1?
The circuit breaker has a rated current of 1000 A.
Which trip unit is fitted to the ABB 1SDA059353R1?
The breaker is equipped with the ABB PR121/P-LSIG electronic trip unit.
What does LSIG protection mean?
LSIG denotes long-time, short-time, instantaneous and ground-fault protection, providing electronic protection against overload, short-circuit and earth-fault conditions.
Does the ABB 1SDA059353R1 provide ground-fault protection?
Yes. The PR121/P-LSIG configuration includes integrated ground-fault protection in addition to long-time, short-time and instantaneous overcurrent protection.
Is the ABB 1SDA059353R1 fixed or withdrawable?
The 1SDA059353R1 is a fixed (F) air circuit breaker designed for permanent installation within compatible low-voltage switchgear.
What does HR mean on the ABB 1SDA059353R1?
HR identifies the horizontal rear terminal arrangement used for the main electrical connections.
What is the short-circuit breaking capacity of the ABB 1SDA059353R1?
The E3H breaker has a rated ultimate short-circuit breaking capacity of 100 kA at 400 V AC, 50 Hz and a rated service short-circuit breaking capacity of 85 kA at 400 V AC, 50 Hz.
Trusted by Electrical Engineers Worldwide
ABB SACE Emax air circuit breakers are engineered for demanding industrial, commercial and infrastructure power distribution systems where dependable high-current protection, advanced electronic trip functionality and robust switchgear integration are required.
