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1SDA056855R1 ABB E4H4000PR123/P-LSIG 4000A 3-Pole Air Circuit Breaker
ABB 1SDA056855R1 E4H4000PR123/P-LSIG is a 4000 A three-pole fixed SACE Emax air circuit breaker with rear horizontal terminals, a PR123/P-LSIG R4000 electronic release and 100 kA breaking capacity at 400/415 V AC.
£34,998.47
Why Choose the ABB E4H4000PR123/P-LSIG 4000A Air Circuit Breaker?
The ABB E4H4000PR123/P-LSIG, order code 1SDA056855R1, is a high-performance 4000 A three-pole air circuit breaker designed for demanding low-voltage power distribution systems. Part of the proven ABB SACE Emax E4 series, this fixed breaker combines the E4H high short-circuit performance class with the advanced PR123/P electronic overcurrent protection release.
The breaker is equipped with an ABB PR123/P-LSIG R4000 electronic overcurrent release, providing long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection. This comprehensive LSIG protection configuration supports selective coordination while protecting cables, busbars, transformers and downstream equipment against overloads, phase faults and earth faults.
With a rated uninterrupted current of 4000 A, a three-pole fixed configuration and rear horizontal terminals, the E4H4000PR123/P-LSIG is engineered for permanent installation in high-capacity low-voltage switchgear. Its E4H performance class provides an ultimate short-circuit breaking capacity of 100 kA at 400/415 V AC, retaining 85 kA at 690 V AC for demanding electrical distribution networks.
Key Advantages
- High-capacity 4000 A air circuit breaker for demanding low-voltage power distribution.
- Three-pole fixed configuration for permanent switchboard installation.
- Rear horizontal terminals for integration with compatible switchgear busbar systems.
- Advanced PR123/P-LSIG R4000 electronic protection release.
- Comprehensive long-time, short-time, instantaneous and earth-fault protection.
- High 100 kA ultimate short-circuit breaking capacity at 400/415 V AC.
- Breaking capacity remains 85 kA at 690 V AC.
- 100 kA short-time withstand current for 1 s for demanding fault conditions.
- Fitted with four auxiliary contacts for signalling and control.
- Integrated open/closed breaker position indication.
Key Features
- ABB SACE Emax E4H air circuit breaker platform.
- 4000 A rated uninterrupted current.
- Three-pole construction.
- Fixed (F) breaker execution.
- Rear horizontal (HR) terminal connection.
- PR123/P-LSIG R4000 electronic overcurrent release.
- Long-time overload protection.
- Short-time delayed short-circuit protection.
- Instantaneous short-circuit protection.
- Earth-fault protection.
- 690 V AC rated operational voltage.
- 100 kA Icu and Ics at 400/415 V AC.
- 100 kA Icu and Ics at 500 V AC.
- 85 kA Icu and Ics at 690 V AC.
- 100 kA Icw for 1 s and 75 kA Icw for 3 s.
- 1000 V rated insulation voltage and 12 kV impulse withstand voltage.
- Four auxiliary contacts and breaker open/closed position indication.
Reliable Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E4 protect low-voltage electrical networks against damaging overcurrents while providing dependable switching and isolation of high-current circuits. The E4H performance class offers high fault-interruption capability, making it suitable for main incomers, transformer secondaries, large feeders and other circuits where substantial prospective short-circuit currents can occur.
The PR123/P electronic release provides advanced electronic protection for demanding distribution systems. In this LSIG configuration, long-time protection responds to sustained overloads, short-time protection supports selective short-circuit coordination, instantaneous protection rapidly interrupts severe faults, and earth-fault protection provides an additional layer of protection against ground-fault conditions.
Typical Applications
- Main low-voltage switchboards and power distribution assemblies.
- Industrial high-current power distribution systems.
- Transformer secondary and main incomer protection.
- Large feeder and busbar circuits requiring selective protection.
- Distribution systems requiring integrated earth-fault protection.
- Networks with high prospective short-circuit currents.
- Manufacturing and process plant electrical systems.
- Commercial buildings, utilities and critical infrastructure installations.
Technical Specifications
| Series | SACE Emax E4 |
|---|---|
| ABB order code | 1SDA056855R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Frame / performance class | E4H 4000 |
| Short-circuit performance level | H |
| Rated current (In) | 4000 A |
| Rated uninterrupted current (Iu) | 4000 A |
| Rated operational current (Ie) | 4000 A |
| Rated operational voltage (Ue) | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Number of poles | 3 |
| Current type | AC |
| Execution | Fixed (F) |
| Terminal connection | Rear flat horizontal (HR) |
| Protection release | PR123/P-LSIG R4000 electronic overcurrent release |
| Release type | Electronic |
| Protection functions | L (long-time), S (short-time), I (instantaneous) and G (earth-fault) |
| Ultimate short-circuit breaking capacity (Icu) at 220/230 V AC | 100 kA |
| Ultimate short-circuit breaking capacity (Icu) at 380/400 V AC | 100 kA |
| Ultimate short-circuit breaking capacity (Icu) at 415 V AC | 100 kA |
| Ultimate short-circuit breaking capacity (Icu) at 440 V AC | 100 kA |
| Ultimate short-circuit breaking capacity (Icu) at 500 V AC | 100 kA |
| Ultimate short-circuit breaking capacity (Icu) at 660/690 V AC | 85 kA |
| Service short-circuit breaking capacity (Ics) at 400/415 V AC | 100 kA |
| Service short-circuit breaking capacity (Ics) at 660/690 V AC | 85 kA |
| Rated short-time withstand current (Icw), 1 s | 100 kA |
| Rated short-time withstand current (Icw), 3 s | 75 kA |
| Power loss | 360 W |
| Electrical durability at Ue ≤ 440 V | 5000 cycles |
| Electrical durability at Ue 500–690 V | 4000 cycles |
| Mechanical durability | 15000 cycles |
| Auxiliary contacts | 4 |
| Position indication | Open / closed breaker indication |
| Standard | IEC |
| Dimensions (W × H × D) | 566 × 418 × 302 mm |
| Net weight | 81 kg |
| EAN | 8015644581954 |
| Customs tariff number | 85362090 |
Frequently Asked Questions
What is the ABB E4H4000PR123/P-LSIG used for?
This ABB SACE Emax air circuit breaker is designed for switching and protecting high-current low-voltage distribution systems requiring high short-circuit performance and comprehensive electronic LSIG protection.
What is the rated current of ABB 1SDA056855R1?
The ABB 1SDA056855R1 has a rated uninterrupted current of 4000 A and uses a three-pole fixed E4H air circuit breaker configuration.
What protection release is fitted to ABB 1SDA056855R1?
The breaker is fitted with an ABB PR123/P-LSIG R4000 electronic overcurrent release, providing long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection.
What is the short-circuit breaking capacity of the E4H4000?
The E4H4000 provides an ultimate short-circuit breaking capacity of 100 kA at 400/415 V AC. The rating remains 100 kA through 500 V AC and is 85 kA at 660–690 V AC.
What type of installation and terminals does ABB 1SDA056855R1 use?
The ABB 1SDA056855R1 is a three-pole fixed air circuit breaker with rear horizontal terminals, designed for permanent integration into compatible low-voltage switchgear assemblies.
Trusted for Critical Power Distribution
ABB SACE Emax air circuit breakers are engineered for dependable protection, switching and control of demanding low-voltage electrical distribution systems, combining high-current capability, high short-circuit performance and advanced electronic protection technology.
