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1SDA056362R1 ABB E3H800 PR121/P-LSIG 800A 4P Withdrawable Air Circuit Breaker
ABB 1SDA056362R1 E3H800 is an 800 A four-pole withdrawable SACE Emax air circuit breaker with a PR121/P-LSIG electronic release for comprehensive low-voltage power distribution protection.
£12,297.09
Why Choose the ABB E3H800 PR121/P-LSIG 800A 4P Withdrawable Air Circuit Breaker?
The ABB E3H800 PR121/P-LSIG, order code 1SDA056362R1, is a high-performance 800 A four-pole air circuit breaker from the ABB SACE Emax E3 series, designed for protection and switching in low-voltage industrial and commercial power distribution systems. This H-performance version combines a withdrawable configuration with the electronic PR121/P-LSIG overcurrent release for comprehensive circuit protection.
The PR121/P-LSIG electronic release provides long-time, short-time, instantaneous and earth-fault protection, enabling the breaker to protect electrical installations against overloads, short circuits and ground faults. Its withdrawable construction supports maintainability and operational flexibility in switchboards where rapid inspection, servicing or replacement is important.
Rated at 800 A with four poles and a rated operational voltage of up to 690 V AC, the E3H800 offers an ultimate short-circuit breaking capacity of up to 100 kA at voltages up to 500 V AC. It is engineered for demanding power distribution applications requiring high breaking performance, selective protection and dependable operation.
Key Advantages
- High-performance ABB SACE Emax E3 air circuit breaker.
- 800 A rated current for substantial low-voltage distribution loads.
- Four-pole configuration for switching and protecting three-phase systems with neutral.
- PR121/P-LSIG electronic release provides comprehensive overcurrent and earth-fault protection.
- Ultimate short-circuit breaking capacity up to 100 kA at 220–500 V AC.
- Withdrawable construction supports convenient switchboard maintenance and servicing.
Key Features
- ABB SACE Emax E3H800 circuit breaker platform.
- 800 A rated current.
- 4-pole configuration.
- PR121/P-LSIG electronic overcurrent release.
- LSIG protection: long-time, short-time, instantaneous and ground-fault functions.
- 690 V AC rated operational voltage.
- 100 kA Icu at 220–500 V AC.
- 85 kA Ics across rated operational voltages up to 690 V AC.
- Withdrawable moving-part version for SACE Emax switchgear.
Reliable Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB SACE Emax E3H800 provide switching, isolation and overcurrent protection for high-current low-voltage electrical systems. The PR121/P-LSIG electronic trip unit monitors current conditions and initiates tripping when configured protection thresholds are exceeded, helping protect cables, busbars, equipment and downstream circuits.
The withdrawable Emax design is particularly suited to switchboards where continuity of service and maintainability are important. Its high short-circuit performance and configurable LSIG protection make the E3H800 suitable for incoming feeders, distribution feeders and other critical protection duties in industrial and commercial installations.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Incoming and outgoing feeder protection.
- Manufacturing plants and process facilities.
- Commercial and infrastructure electrical installations.
- Power distribution systems requiring selective LSIG protection.
Technical Specifications
| Series | SACE Emax E3 |
|---|---|
| ABB order code | 1SDA056362R1 |
| Product type | Air circuit breaker |
| Version | W (withdrawable) |
| Number of poles | 4P |
| Rated current (In) | 800 A |
| Rated uninterrupted current (Iu) | 800 A |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Release | PR121/P-LSIG |
| Release type | Electronic |
| Protection functions | L, S, I, G |
| Short-circuit performance level | H |
| Rated ultimate short-circuit breaking capacity (Icu) | 100 kA at 220–500 V AC; 85 kA at 660–690 V AC |
| Rated service short-circuit breaking capacity (Ics) | 85 kA at 220–690 V AC |
| Rated short-time withstand current (Icw) | 75 kA for 1 s; 65 kA for 3 s |
| Power loss | 36 W |
| Mechanical durability | 20,000 operating cycles |
| Electrical durability | 12,000 operating cycles |
| Standards | IEC |
| Product net dimensions (W × H × D) | 558 × 461 × 396.5 mm |
| Product net weight | 81 kg |
| EAN | 8015644577025 |
Frequently Asked Questions
What is the ABB 1SDA056362R1 used for?
It is an 800 A four-pole air circuit breaker used for switching and protecting low-voltage power distribution circuits against overloads, short circuits and earth faults.
What protection release is fitted to this circuit breaker?
The breaker is fitted with the ABB PR121/P-LSIG electronic release, providing long-time, short-time, instantaneous and ground-fault protection functions.
What is the rated current of the E3H800?
This ABB E3H800 configuration has a rated current of 800 A and uses a four-pole arrangement.
What is the breaking capacity of the ABB E3H800?
The H-performance breaker has a rated ultimate short-circuit breaking capacity of 100 kA at 220–500 V AC and 85 kA at 660–690 V AC.
Is ABB 1SDA056362R1 a fixed or withdrawable circuit breaker?
The 1SDA056362R1 is the withdrawable moving-part version of the SACE Emax E3H800 circuit breaker, designed for compatible withdrawable switchboard installations.
Trusted Protection from ABB SACE
ABB SACE Emax air circuit breakers are engineered for demanding low-voltage power distribution applications, combining high short-circuit performance, electronic protection and maintainable switchgear construction for industrial and commercial electrical systems.
