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1SDA055535R1 ABB E4H 4000A 4P PR123/P-LSIG Withdrawable Air Circuit Breaker Moving Part
ABB 1SDA055535R1 is a SACE Emax E4H 4000 A four-pole withdrawable air circuit breaker moving part with full-size neutral and a PR123/P-LSIG R4000 electronic overcurrent release.
£50,636.12
Why Choose the ABB E4H/f 4000 PR123/P-LSIG 1SDA055535R1 Circuit Breaker?
The ABB 1SDA055535R1 is the moving part of a SACE Emax E4H 4000 A withdrawable air circuit breaker, designed for demanding low-voltage power distribution systems. This four-pole unit combines ABB's E4H high-performance platform with the advanced PR123/P-LSIG R4000 electronic overcurrent release.
The breaker features a four-pole configuration with full-size neutral and is supplied as the moving part for a compatible SACE Emax withdrawable installation. Its PR123/P-LSIG electronic trip unit provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, delivering comprehensive LSIG protection for high-current distribution circuits.
Rated at 4000 A with a rated voltage of 690 V AC and an ultimate short-circuit breaking capacity of 100 kA at 400 V AC, the 1SDA055535R1 is suited to high-capacity switchboard applications. Four auxiliary change-over contacts and circuit-breaker open/closed position indication support integration with control and signalling systems.
Key Advantages
- High-current 4000 A SACE Emax E4H air circuit breaker moving part.
- Withdrawable construction supports isolation, servicing and switchboard maintenance.
- Four-pole configuration with full-size neutral.
- PR123/P-LSIG R4000 electronic trip unit provides advanced circuit protection.
- LSIG protection functions cover overload, short-time, instantaneous and earth-fault conditions.
- 100 kA ultimate short-circuit breaking capacity at 400 V AC.
- Four auxiliary change-over contacts support signalling and control requirements.
Key Features
- ABB SACE Emax E4H air circuit breaker moving part.
- 4000 A rated permanent current.
- Four-pole (4P) configuration.
- Full-size neutral.
- Withdrawable (W) execution.
- Moving part (MP) for a compatible SACE Emax fixed part.
- PR123/P-LSIG R4000 electronic overcurrent release.
- LSIG protection: long-time, short-time, instantaneous and earth fault.
- 690 V AC rated voltage.
- 100 kA ultimate short-circuit breaking capacity at 400 V AC.
- Four auxiliary change-over contacts.
- Open/closed circuit-breaker position indication.
Advanced PR123/P-LSIG Protection for Withdrawable Distribution Systems
The withdrawable SACE Emax configuration is designed for low-voltage switchboards where maintainability and operational flexibility are important. The ABB 1SDA055535R1 forms the moving part of the circuit breaker and is intended to interface with the corresponding fixed part, allowing the breaker to be withdrawn for isolation, inspection and maintenance.
The PR123/P-LSIG electronic release provides long-time protection against sustained overloads, short-time protection for controlled fault response, instantaneous protection against severe short circuits and integrated earth-fault protection. Combined with the 4000 A E4H platform, it provides comprehensive protection for high-capacity incoming and distribution circuits.
Typical Applications
- Withdrawable low-voltage distribution switchboards.
- Industrial power distribution systems.
- Main incoming circuit protection.
- High-current feeder circuits.
- Manufacturing and process plants.
- Commercial and infrastructure power systems.
- Transformer and generator distribution systems.
- High-capacity power distribution and switchgear assemblies.
Technical Specifications
| Series | SACE Emax |
|---|---|
| Product designation | E4H/f 4000 PR123/P-LSIG In=4000A 4p W MP |
| ABB order code | 1SDA055535R1 |
| Product type | Air circuit breaker moving part |
| Frame / performance level | E4H |
| Rated permanent current | 4000 A |
| Rated voltage | 690 V AC |
| Rated ultimate short-circuit breaking capacity at 400 V AC | 100 kA |
| Number of poles | 4P |
| Neutral | Full size |
| Execution | Withdrawable |
| Component | Moving part (MP) |
| Trip unit | PR123/P-LSIG R4000 |
| Release type | Electronic |
| Protection functions | Long-time, short-time, instantaneous and earth fault (LSIG) |
| Overload release setting range | 1600–4000 A |
| Short-time short-circuit release setting | 2400 A |
| Instantaneous short-circuit release setting range | 6000–60000 A |
| Integrated earth-fault protection | Yes |
| Auxiliary contacts | 4 change-over contacts |
| Position indication | Circuit breaker open / closed |
| Electrical durability | 5000 cycles at ≤440 V; 4000 cycles at 500–690 V |
| Mechanical durability | 15000 cycles |
| Dimensions (W × H × D) | 774 × 461 × 396.5 mm |
| Product net weight | 96 kg |
| EAN | 8015644568757 |
| Product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA055535R1?
The ABB 1SDA055535R1 is the 4000 A four-pole moving part of a SACE Emax E4H withdrawable air circuit breaker, fitted with a PR123/P-LSIG R4000 electronic overcurrent release.
Is the ABB 1SDA055535R1 fixed or withdrawable?
The 1SDA055535R1 is a withdrawable circuit breaker moving part (W MP) intended for use with the corresponding compatible SACE Emax fixed part.
What protection functions does the PR123/P-LSIG provide?
The PR123/P-LSIG electronic trip unit provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection.
What is the rated current of the ABB 1SDA055535R1?
The circuit breaker moving part has a rated permanent current of 4000 A.
What is the short-circuit breaking capacity of the ABB 1SDA055535R1?
The E4H circuit breaker has a rated ultimate short-circuit breaking capacity of 100 kA at 400 V AC.
Trusted ABB Power Distribution Protection
ABB SACE Emax air circuit breakers provide purpose-designed switching and advanced electronic protection for demanding low-voltage power distribution systems, with withdrawable configurations supporting flexible integration, servicing and maintenance within industrial and commercial switchgear.
