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1SDA055765R1 ABB E1N 1600 PR122/P-LSIG 1600A 3P Fixed Air Circuit Breaker
ABB 1SDA055765R1 E1N 1600 three-pole fixed air circuit breaker rated at 1600 A with a PR122/P-LSIG R1600 electronic release, integrated earth-fault protection, horizontal rear terminals and 50 kA short-circuit breaking capacity.
£9,150.12
Why Choose the ABB E1N 1600 PR122/P-LSIG 1600A 3P Fixed Air Circuit Breaker?
The ABB E1N 1600 PR122/P-LSIG, order code 1SDA055765R1, is a high-performance three-pole fixed air circuit breaker (ACB) designed for protection and switching in demanding low-voltage electrical distribution systems. Part of the ABB SACE Emax E1N series, it combines a 1600 A rated current with the advanced PR122/P-LSIG R1600 electronic overcurrent release for comprehensive overload, short-circuit and earth-fault protection.
This E1N breaker is supplied in a fixed configuration with horizontal rear flat terminals, making it suitable for integration into industrial switchboards, main distribution boards and power-control assemblies. The three-pole construction is designed for three-phase circuits, while four auxiliary contacts provide circuit-breaker open/closed position indication for signalling, monitoring and control applications.
The E1N 1600 provides rated ultimate and service short-circuit breaking capacities of 50 kA throughout its specified 220–690 V AC range. Its PR122/P-LSIG electronic release provides long-time, short-time, instantaneous and earth-fault protection functions, supporting selective protection coordination and reliable fault interruption in high-current industrial and commercial power networks.
Key Advantages
- Heavy-duty ABB SACE Emax air circuit breaker for low-voltage power distribution.
- 1600 A rated current for high-current industrial and commercial installations.
- Three-pole configuration for three-phase electrical distribution systems.
- PR122/P-LSIG R1600 electronic protection release provides comprehensive overcurrent and earth-fault protection.
- 50 kA ultimate and service short-circuit breaking capacity throughout the specified AC voltage range.
- Fixed construction with horizontal rear flat terminals for robust switchboard integration.
- Four auxiliary contacts provide circuit-breaker open/closed position indication.
Key Features
- ABB SACE Emax E1N series.
- 1600 A rated uninterrupted current.
- 3-pole fixed air circuit breaker.
- PR122/P-LSIG R1600 electronic overcurrent release.
- Long-time (L), short-time (S), instantaneous (I) and earth-fault (G) protection functions.
- 690 V AC rated operational voltage.
- 50 kA rated ultimate short-circuit breaking capacity.
- 50 kA rated service short-circuit breaking capacity.
- 50 kA short-time withstand current for 1 s.
- Fixed mounting with horizontal rear flat terminals.
Comprehensive Protection for High-Current Distribution Systems
Air circuit breakers such as the ABB E1N 1600 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 PR122/P-LSIG release combines long-time overload protection with short-time selective, instantaneous short-circuit and earth-fault protection. This combination provides flexibility for coordinating upstream and downstream protective devices, while the E1N platform delivers the fault interruption capability required for demanding industrial, commercial and infrastructure distribution systems.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Main incomer and high-current feeder protection.
- Manufacturing and process plants.
- Commercial and infrastructure electrical installations.
- Generator and transformer distribution systems.
- Fixed switchgear requiring selective overcurrent and earth-fault protection.
Technical Specifications
| Series | SACE Emax E1N |
|---|---|
| ABB order code | 1SDA055765R1 |
| Product group | 310513-New Emax |
| EAN | 8015644571054 |
| Product type | Air circuit breaker (ACB) |
| Performance level | N |
| Frame size | E1 |
| Rated current (In) | 1600 A |
| Rated operational current (Ie) | 1600 A |
| Rated uninterrupted current (Iu) | 1600 A |
| Number of poles | 3 |
| 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) | 50 kA at 220–690 V AC |
| Rated service short-circuit breaking capacity (Ics) | 50 kA at 220–690 V AC |
| Rated short-time withstand current (Icw) | 50 kA for 1 s; 36 kA for 3 s |
| Protection release | PR122/P-LSIG R1600 |
| 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 | Fixed |
| Terminal connection | Horizontal rear flat terminals |
| Auxiliary contacts | 4 |
| Auxiliary indication | Circuit breaker open / closed position |
| Power loss | 253 W |
| Product net weight | 50 kg |
| Mechanical durability | 25,000 operating cycles |
| Electrical durability | 10,000 cycles at ≤440 V; 8,000 cycles at 500–690 V |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA055765R1?
The ABB 1SDA055765R1 is an E1N 1600 three-pole fixed SACE Emax air circuit breaker rated at 1600 A, supplied with horizontal rear terminals and a PR122/P-LSIG R1600 electronic overcurrent release.
What protection functions does the PR122/P-LSIG provide?
The PR122/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 1600?
The E1N 1600 provides rated ultimate and service short-circuit breaking capacities of 50 kA throughout its specified 220–690 V AC range, together with a rated short-time withstand current of 50 kA for 1 s.
Is the ABB 1SDA055765R1 fixed or withdrawable?
The 1SDA055765R1 is a fixed three-pole air circuit breaker supplied with horizontal rear flat terminals for integration into low-voltage switchboards.
What auxiliary contacts are included with the ABB 1SDA055765R1?
The circuit breaker is fitted with four auxiliary contacts providing open and closed position indication for integration with switchboard signalling, monitoring and control systems.
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, comprehensive electronic protection and robust construction for industrial power control.
