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1SDA055727R1 ABB E1N 800 PR123/P-LSIG 800A 4P Withdrawable Air Circuit Breaker Moving Part
ABB 1SDA055727R1 E1N 800 four-pole withdrawable air circuit breaker moving part rated at 800 A with a PR123/P-LSIG electronic release, integrated earth-fault protection and 50 kA short-circuit breaking capacity at 415 V AC.
£16,358.98
Why Choose the ABB E1N 800 PR123/P-LSIG 800A 4P Withdrawable Air Circuit Breaker Moving Part?
The ABB E1N 800 PR123/P-LSIG, order code 1SDA055727R1, is a high-performance four-pole withdrawable air circuit breaker moving part designed for protection and switching in demanding low-voltage electrical distribution systems. As part of the ABB SACE New Emax E1N series, it combines an 800 A rated current with the advanced PR123/P-LSIG electronic protection release for comprehensive circuit protection.
This E1N configuration is the withdrawable moving part (W MP) of the circuit breaker and is designed for use with the corresponding ABB Emax withdrawable fixed part. Its draw-out construction supports efficient inspection, servicing and replacement in switchboards, while the four-pole arrangement enables simultaneous switching and protection of three phases and neutral where required.
The E1N 800 platform provides a 50 kA rated ultimate short-circuit breaking capacity at 415 V AC and a 50 kA short-time withstand current for 1 s. The PR123/P-LSIG electronic trip unit provides long-time, short-time, instantaneous and earth-fault protection, making this breaker moving part suitable for sophisticated industrial and commercial distribution systems requiring protection selectivity and reliable fault interruption.
Key Advantages
- Heavy-duty ABB SACE New Emax air circuit breaker moving part for low-voltage distribution.
- 800 A rated current for high-current electrical installations.
- Four-pole configuration enables switching of three phases and neutral.
- PR123/P-LSIG electronic protection release provides comprehensive overcurrent and earth-fault protection.
- 50 kA short-circuit breaking capacity at 415 V AC.
- 50 kA short-time withstand current for 1 s for demanding distribution networks.
- Withdrawable moving-part construction facilitates switchboard inspection, servicing and maintenance.
Key Features
- ABB SACE New Emax E1N series.
- 800 A rated current.
- 4-pole air circuit breaker moving part.
- PR123/P-LSIG electronic trip unit.
- Long-time (L), short-time (S), instantaneous (I) and earth-fault (G) protection functions.
- 50 kA rated ultimate short-circuit breaking capacity at 415 V AC.
- 50 kA rated service short-circuit breaking capacity at 415 V AC.
- 50 kA rated short-time withstand current for 1 s.
- Withdrawable / draw-out moving-part construction.
- Designed for use with the corresponding ABB Emax withdrawable fixed part.
Advanced Protection for Low-Voltage Distribution Systems
Air circuit breakers such as the ABB E1N 800 provide switching and automatic protection for high-current low-voltage circuits. The electronic protection release monitors current conditions and commands the breaker to interrupt the circuit when configured thresholds are exceeded, helping protect cables, switchgear and connected equipment against overloads, short circuits and earth faults.
The PR123/P-LSIG release combines long-time overload, short-time selective, instantaneous short-circuit and earth-fault protection. Together with the E1N breaker platform and its withdrawable architecture, this provides a flexible protection solution for switchboards where selectivity, maintainability and continuity of electrical service are important.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Main incomer and feeder circuit protection.
- Manufacturing and process plants.
- Commercial and infrastructure electrical installations.
- Generator and transformer distribution systems.
- Withdrawable switchgear requiring advanced overcurrent and earth-fault protection.
Technical Specifications
| Series | SACE New Emax E1N |
|---|---|
| ABB order code | 1SDA055727R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker withdrawable moving part |
| Performance level | E1N |
| Frame size | E1 |
| Rated current (In) | 800 A |
| Rated uninterrupted current (Iu) | 800 A |
| Number of poles | 4 |
| Current type | AC |
| Rated operational voltage (Ue) | up to 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated ultimate short-circuit breaking capacity (Icu) at 415 V AC | 50 kA |
| Rated service short-circuit breaking capacity (Ics) at 415 V AC | 50 kA |
| Rated short-time withstand current (Icw) | 50 kA for 1 s |
| Protection release | PR123/P-LSIG |
| Release type | Electronic overcurrent release |
| Protection functions | Long-time (L), short-time (S), instantaneous (I) and earth-fault (G) |
| Earth-fault protection | Integrated |
| Mounting version | Withdrawable / draw-out |
| Component | Moving part (W MP) |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the ABB 1SDA055727R1?
The ABB 1SDA055727R1 is an E1N 800 four-pole withdrawable SACE New Emax air circuit breaker moving part rated at 800 A and equipped with a PR123/P-LSIG electronic protection release.
What protection functions does the PR123/P-LSIG provide?
The PR123/P-LSIG electronic release provides long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection.
What is the breaking capacity of the ABB E1N 800?
The E1N 800 has a rated ultimate short-circuit breaking capacity of 50 kA at 415 V AC, with a rated service short-circuit breaking capacity of 50 kA at the same voltage.
Is the ABB 1SDA055727R1 a fixed or withdrawable circuit breaker?
The 1SDA055727R1 is the withdrawable moving part of the E1N 800 circuit breaker and is designed for use with the corresponding ABB Emax withdrawable fixed part.
Why use a four-pole E1N 800 circuit breaker?
The four-pole configuration enables simultaneous switching of all three phase conductors and the neutral, making it suitable for low-voltage distribution systems where neutral switching is required.
Trusted Low-Voltage Protection from ABB
ABB SACE Emax air circuit breakers are engineered for dependable switching and protection in demanding low-voltage distribution systems, combining high interruption performance, advanced electronic protection and service-friendly withdrawable configurations.
