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1SDA055788R1 ABB E1N 1600 PR122/P-LSI 1600 A 4-Pole Withdrawable Air Circuit Breaker Moving Part
ABB 1SDA055788R1 SACE Emax E1N 1600 is a 1600 A four-pole withdrawable air circuit breaker moving part with a PR122/P-LSI electronic release and 50 kA breaking capacity at 415 V AC.
£11,860.66
Why Choose the ABB 1SDA055788R1 E1N 1600 Air Circuit Breaker Moving Part?
The ABB 1SDA055788R1 is a SACE Emax E1N 1600 moving part for a withdrawable air circuit breaker, designed for high-current switching and protection in low-voltage AC power distribution systems. This four-pole unit has a rated current of 1600 A and is equipped with an electronic PR122/P-LSI R1600 overcurrent release providing long-time, short-time and instantaneous protection.
Part of the established ABB SACE Emax range, the E1N 1600 combines dependable high-current performance with the maintainability of a withdrawable circuit-breaker arrangement. Its N short-circuit performance level provides rated ultimate and service short-circuit breaking capacities of 50 kA at 415 V AC, making it suitable for demanding industrial, commercial and infrastructure distribution systems.
The 1SDA055788R1 is a four-pole withdrawable (W) moving portion intended for use with the corresponding SACE Emax fixed part. It has a rated operational voltage of 690 V AC, rated insulation voltage of 1000 V and rated impulse withstand voltage of 12 kV. The moving part is also fitted with four auxiliary contacts and circuit-breaker open/closed position indication for integration with switchboard signalling and monitoring systems.
Key Advantages
- High-current 1600 A E1N air circuit breaker moving part for low-voltage distribution.
- PR122/P-LSI electronic overcurrent release provides long-time, short-time and instantaneous protection.
- 50 kA short-circuit breaking capacity at 415 V AC for demanding electrical systems.
- Four-pole configuration supports switching and protection of three phases and neutral.
- Withdrawable construction supports inspection, maintenance and replacement within compatible Emax switchgear.
- 50 kA short-time withstand current for 1 s provides robust fault-current capability.
- Four auxiliary contacts and open/closed position indication support switchboard monitoring.
Key Features
- ABB SACE Emax E1N 1600 air circuit breaker moving part.
- 1600 A rated current.
- 4-pole configuration.
- PR122/P-LSI R1600 electronic release.
- LSI protection provides long-time, short-time and instantaneous overcurrent protection.
- Withdrawable (W) circuit-breaker configuration.
- Moving portion for installation with a compatible SACE Emax fixed part.
- 690 V AC rated operational voltage.
- 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.
- Four auxiliary contacts with circuit-breaker open/closed position indication.
Reliable LSI Protection for High-Current Distribution
Air circuit breakers such as the ABB SACE Emax E1N 1600 provide switching and overcurrent protection for high-current low-voltage distribution circuits. The PR122/P-LSI electronic release provides long-time protection against sustained overloads, short-time protection for selective fault coordination and instantaneous protection against severe short-circuit currents, helping protect switchgear, conductors and connected equipment.
The withdrawable construction allows the circuit-breaker moving portion to be isolated and removed from its compatible fixed part, supporting maintenance, inspection and replacement strategies in critical switchboards. Combined with four-pole switching, 50 kA short-circuit performance at 415 V AC and advanced PR122/P electronic protection, the 1SDA055788R1 is well suited to main incoming and high-current distribution applications where protection selectivity and serviceability are important.
Typical Applications
- Industrial low-voltage distribution switchboards.
- Main incoming circuit protection.
- Four-pole power distribution systems.
- High-current feeder protection.
- Withdrawable switchgear assemblies.
- Manufacturing and process plants.
- Commercial and infrastructure electrical distribution.
- Power distribution systems requiring selective LSI protection and serviceable breaker arrangements.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA055788R1 |
| Product type | Air circuit breaker moving part |
| Frame / sub-type | E1 |
| Short-circuit performance level | N |
| Rated current (In) | 1600 A |
| Rated uninterrupted current (Iu) | 1600 A |
| Rated operational current (Ie) | 1600 A |
| Number of poles | 4 |
| Current type | AC |
| Rated operational voltage | 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 |
| Release | PR122/P-LSI R1600 |
| Release type | Electronic |
| Protection functions | LSI – long-time, short-time and instantaneous |
| Long-time protection (L) | Overload protection |
| Short-time protection (S) | Selective short-circuit protection |
| Instantaneous protection (I) | Instantaneous short-circuit protection |
| Version | Withdrawable |
| Configuration | Moving portion |
| Terminal connection type | Withdrawable circuit breaker |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Power loss | 378 W |
| Standard | IEC |
| EAN | 8015644571283 |
Frequently Asked Questions
What is the ABB 1SDA055788R1?
The ABB 1SDA055788R1 is the moving portion of a four-pole SACE Emax E1N 1600 withdrawable air circuit breaker, rated at 1600 A and fitted with a PR122/P-LSI electronic overcurrent release.
What protection release is fitted to the ABB 1SDA055788R1?
The unit is fitted with a PR122/P-LSI R1600 electronic release providing long-time, short-time and instantaneous overcurrent protection.
What does LSI protection mean?
LSI provides long-time overload, short-time short-circuit and instantaneous short-circuit protection, supporting both dependable fault protection and selective coordination in low-voltage distribution systems.
Is the ABB 1SDA055788R1 fixed or withdrawable?
This model is a withdrawable circuit-breaker moving part designed for installation with the corresponding compatible ABB SACE Emax fixed part.
What is the short-circuit breaking capacity of the E1N 1600?
The E1N 1600 has rated ultimate and service short-circuit breaking capacities of 50 kA at 415 V AC and a rated short-time withstand current of 50 kA for 1 s.
Trusted ABB Protection for Critical Distribution Systems
ABB SACE Emax air circuit breakers provide robust switching and protection for low-voltage power distribution, combining high current capability, advanced electronic protection and serviceable withdrawable construction for demanding industrial switchboards and infrastructure.
