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1SDA059351R1 ABB E3H1000 PR121/P-LSI 1000A 4-Pole Fixed Air Circuit Breaker
ABB 1SDA059351R1 is a SACE Emax E3H 1000 A four-pole fixed air circuit breaker with rear horizontal terminals, a PR121/P-LSI R1000 electronic overcurrent release, LSI protection and four auxiliary contacts for open/closed position indication.
£11,613.96
Why Choose the ABB E3H1000 PR121/P-LSI 1000A 4-Pole Fixed Circuit Breaker?
The ABB E3H1000 PR121/P-LSI, order code 1SDA059351R1, 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 E3H series, this four-pole fixed circuit breaker has a rated current of 1000 A and incorporates the PR121/P-LSI R1000 electronic overcurrent release.
The PR121/P-LSI protection unit provides long-time, short-time and instantaneous overcurrent protection, helping safeguard cables, busbars and connected equipment against overloads and short circuits. The E3H performance level provides an ultimate short-circuit breaking capacity of 100 kA at 400–415 V AC, with high service and short-time withstand ratings for demanding industrial power distribution.
This version is a four-pole fixed circuit breaker with rear horizontal terminals. It is fitted with four auxiliary contacts and circuit-breaker open/closed position indication, supporting status monitoring and integration into industrial switchboards, distribution assemblies and control systems.
Key Advantages
- Heavy-duty ABB SACE Emax air circuit breaker for demanding low-voltage distribution.
- 1000 A rated uninterrupted current for high-current electrical installations.
- Four-pole configuration for switching and protection across four conductors.
- PR121/P-LSI electronic overcurrent release for dependable circuit protection.
- LSI functionality provides long-time, short-time and instantaneous protection.
- 100 kA ultimate breaking capacity at 400–415 V AC for high prospective fault levels.
- Fixed construction with rear horizontal terminals for robust switchboard integration.
Key Features
- ABB SACE Emax E3H air circuit breaker platform.
- 1000 A rated current.
- 4-pole configuration.
- PR121/P-LSI R1000 electronic overcurrent release.
- Long-time L overload protection.
- Short-time S short-circuit protection.
- Instantaneous I short-circuit protection.
- 100 kA ultimate short-circuit breaking capacity at 400–415 V AC.
- Fixed circuit-breaker execution.
- Rear horizontal main terminals.
- Four auxiliary contacts with 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 circuit current and initiates breaker operation when configured protection thresholds are exceeded, helping protect cables, busbars and connected electrical equipment.
The LSI protection configuration combines long-time overload protection with short-time and instantaneous short-circuit protection. Together with the high E3H short-circuit performance level, four-pole configuration and fixed construction, the E3H1000 provides a robust solution for switchboards requiring selective protection, strong fault-clearing capability and dependable high-current switching.
Typical Applications
- Industrial low-voltage distribution switchboards.
- Main and secondary electrical distribution systems.
- Transformer and generator distribution systems.
- Manufacturing and process plant power systems.
- Commercial and infrastructure power distribution.
- High-fault-level industrial distribution assemblies.
- Fixed switchgear requiring LSI overcurrent protection.
Technical Specifications
| Series | SACE Emax E3H |
|---|---|
| ABB order code | 1SDA059351R1 |
| ABB product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Rated current | 1000 A |
| Rated uninterrupted current Iu | 1000 A |
| Rated operational current Ie | 1000 A |
| Number of poles | 4 |
| Trip unit | PR121/P-LSI R1000 |
| Release type | Electronic |
| Protection functions | L, S, I |
| Execution | Fixed |
| Terminal arrangement | Rear horizontal |
| Current type | AC |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage | 1000 V |
| Rated impulse withstand voltage | 12 kV |
| Rated ultimate short-circuit breaking capacity Icu | 100 kA at 400–415 V AC; 85 kA at 690 V AC |
| Rated service short-circuit breaking capacity Ics | 85 kA at 400–415 V AC; 85 kA at 690 V AC |
| Rated short-time withstand current Icw | 75 kA for 1 s; 65 kA for 3 s |
| Short-circuit performance level | H |
| Power loss | 38.4 W |
| Mechanical durability | 20,000 cycles |
| Electrical durability | 12,000 cycles |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open/closed |
| Product dimensions (W × H × D) | 530 × 418 × 302 mm |
| Net weight | 76 kg |
| EAN | 8015644617127 |
| Customs tariff number | 85362090 |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA059351R1?
The ABB 1SDA059351R1 is a four-pole 1000 A SACE Emax E3H fixed air circuit breaker with rear horizontal terminals and a PR121/P-LSI R1000 electronic overcurrent release.
What is the rated current of the ABB E3H1000?
The E3H1000 has a rated uninterrupted current of 1000 A and is designed for demanding high-current low-voltage power distribution applications.
What protection functions does the PR121/P-LSI provide?
The PR121/P-LSI provides long-time overload, short-time short-circuit and instantaneous short-circuit protection, represented by the L, S and I functions.
Is ABB 1SDA059351R1 fixed or withdrawable?
The 1SDA059351R1 is a fixed four-pole circuit breaker equipped with rear horizontal main terminals.
What is the short-circuit breaking capacity of the ABB E3H1000?
The E3H1000 has an ultimate short-circuit breaking capacity of 100 kA at 400–415 V AC and 85 kA at 690 V AC, with a rated short-time withstand current of 75 kA for 1 second.
Trusted ABB Power Distribution Technology
ABB SACE Emax air circuit breakers provide dependable protection and switching for demanding low-voltage power distribution systems, combining electronic overcurrent protection with high short-circuit performance and robust fixed switchboard integration.
