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1SDA059348R1 ABB E3H1000 PR121/P-LI 1000A 4-Pole Withdrawable Air Circuit Breaker
ABB 1SDA059348R1 E3H1000 is a 1000 A four-pole withdrawable SACE Emax air circuit breaker moving part with a PR121/P-LI R1000 electronic trip unit providing long-time overload and instantaneous short-circuit protection.
£10,985.35
Why Choose the ABB E3H1000 PR121/P-LI 1000A 4-Pole Withdrawable Air Circuit Breaker?
The ABB E3H1000 PR121/P-LI, order code 1SDA059348R1, is a high-performance 1000 A four-pole withdrawable air circuit breaker moving part designed for switching and protecting demanding low-voltage power distribution systems. As part of the proven ABB SACE Emax E3H series, it combines robust high-current switching capability with electronic overcurrent protection for industrial, commercial and infrastructure switchgear.
This Emax circuit breaker is equipped with the PR121/P-LI R1000 electronic trip unit, providing long-time overload (L) and instantaneous short-circuit (I) protection. The electronic release monitors circuit current and initiates breaker operation when configured protection thresholds are exceeded, helping protect cables, busbars, switchgear and connected equipment against overload and severe short-circuit conditions.
With a rated current of 1000 A and the high-performance E3H frame, this breaker is intended for demanding distribution applications where substantial fault-current capability is required. This model is supplied as the four-pole moving part of a withdrawable circuit breaker and is fitted with four auxiliary contacts plus circuit-breaker open/closed position indication for integration into compatible SACE Emax switchgear.
Key Advantages
- Heavy-duty 1000 A air circuit breaker moving part for low-voltage power distribution.
- Four-pole configuration for switching and protecting three-phase systems with neutral.
- PR121/P-LI R1000 electronic trip unit provides overload and instantaneous short-circuit protection.
- E3H high-performance frame designed for demanding fault-current applications.
- Withdrawable construction supports efficient inspection, servicing and breaker replacement.
- Four auxiliary contacts support switchboard signalling and control.
- Open/closed circuit-breaker position indication simplifies operational monitoring.
- Part of the established ABB SACE Emax air circuit breaker platform.
Key Features
- ABB SACE Emax E3H air circuit breaker moving part.
- 1000 A rated current.
- Four-pole construction.
- PR121/P-LI R1000 electronic overcurrent release.
- Long-time overload protection (L).
- Instantaneous short-circuit protection (I).
- Withdrawable version / moving part (W MP).
- High-performance H breaking-capacity class.
- Four auxiliary contacts.
- Circuit-breaker open/closed position indication.
- Service-friendly withdrawable design for compatible Emax switchgear.
- Designed for high-current industrial and commercial power distribution.
Reliable Circuit Protection for Power Distribution
Air circuit breakers such as the ABB SACE Emax E3H are designed to switch and protect high-current low-voltage distribution circuits. The PR121/P electronic trip unit monitors current and trips the breaker when its configured protection thresholds are exceeded, helping safeguard distribution equipment against sustained overloads and high-magnitude short-circuit faults.
The PR121/P-LI release provides essential long-time and instantaneous protection, while the E3H frame is engineered for demanding power-distribution duties. Combined with its four-pole withdrawable construction, the E3H1000 is particularly well suited to installations where high-current protection, neutral switching and straightforward breaker removal for servicing are important.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Commercial building electrical distribution.
- Manufacturing and process plant switchgear.
- Three-phase four-wire distribution systems.
- Transformer and feeder protection.
- Infrastructure and utility installations.
- High-fault-level distribution systems.
- Protection of busbars and high-current distribution circuits.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA059348R1 |
| EAN | 8015644617097 |
| Product group | 310513-New Emax |
| Customs tariff / HS code | 85362090 |
| Product type | Air circuit breaker moving part |
| Frame / subtype | E3 |
| Performance level | H |
| Rated current (In) | 1000 A |
| Number of poles | 4 |
| Current type | AC |
| Trip unit | PR121/P-LI R1000 |
| Release type | Electronic |
| Protection functions | L (long-time overload) and I (instantaneous short-circuit) |
| Version | Withdrawable moving part |
| ABB configuration designation | W MP |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Net weight | 96 kg |
Frequently Asked Questions
What is the ABB 1SDA059348R1 used for?
The ABB 1SDA059348R1 is a 1000 A four-pole SACE Emax air circuit breaker moving part designed for switching and protecting high-current low-voltage electrical distribution circuits.
What trip unit is fitted to the ABB E3H1000 1SDA059348R1?
This circuit breaker is equipped with the ABB PR121/P-LI R1000 electronic trip unit, providing long-time overload and instantaneous short-circuit protection.
What does LI protection mean on the ABB E3H1000?
LI denotes long-time overload (L) and instantaneous short-circuit (I) protection, providing electronic protection against sustained overcurrent and severe short-circuit faults.
Is the ABB 1SDA059348R1 fixed or withdrawable?
The 1SDA059348R1 is the moving part of a four-pole withdrawable air circuit breaker, designed for use with the appropriate compatible SACE Emax fixed part.
What auxiliary contacts are fitted to the ABB 1SDA059348R1?
The breaker moving part is fitted with four auxiliary contacts and provides circuit-breaker open/closed position indication for switchboard signalling and control.
Trusted ABB Power Distribution Technology
ABB SACE Emax air circuit breakers are engineered for dependable low-voltage power distribution, combining robust switching performance, electronic circuit protection and service-friendly withdrawable construction for demanding industrial and commercial switchgear.
