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1SDA055669R1 ABB E1B 1600 PR122/P-LSIG 1600A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA055669R1 SACE Emax E1B 1600 is a 1600 A three-pole fixed air circuit breaker with horizontal rear terminals, a PR122/P-LSIG R1600 electronic trip unit providing LSIG protection and 42 kA short-circuit breaking capacity at 415 V AC.
£8,999.24
Why Choose the ABB E1B 1600 PR122/P-LSIG 1600A Air Circuit Breaker?
The ABB E1B 1600 PR122/P-LSIG, order code 1SDA055669R1, is a high-performance 1600 A three-pole fixed air circuit breaker designed for protection and switching in demanding low-voltage electrical distribution systems. Part of the proven ABB SACE Emax / New Emax range, it combines robust E1B circuit-breaking performance with a PR122/P-LSIG R1600 electronic overcurrent release.
The fitted PR122/P-LSIG R1600 electronic trip unit provides long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection. This comprehensive LSIG configuration supports selective and coordinated protection strategies while helping safeguard cables, busbars, switchgear and connected equipment against a wide range of electrical fault conditions.
This model is supplied in a fixed three-pole configuration with horizontal rear terminals for permanent installation within compatible low-voltage switchboards. Four auxiliary contacts and open/closed circuit-breaker position indication support integration with switchboard signalling, control and monitoring systems.
Key Advantages
- High-current 1600 A air circuit breaker for demanding low-voltage distribution systems.
- PR122/P-LSIG R1600 electronic trip unit provides comprehensive electronic protection.
- LSIG protection functions cover overload, short-time short circuit, instantaneous short circuit and earth-fault conditions.
- 42 kA rated ultimate short-circuit breaking capacity at 415 V AC.
- 42 kA short-time withstand current for 1 s supports demanding distribution applications.
- Fixed construction provides a robust solution for permanent switchboard installation.
- Horizontal rear terminals provide a practical connection arrangement for switchboard busbars.
- Four auxiliary contacts support circuit-breaker status signalling and automation.
Key Features
- ABB SACE Emax E1B series.
- 1600 A rated current.
- Three-pole configuration.
- PR122/P-LSIG R1600 electronic overcurrent release.
- Long-time (L) overload protection.
- Short-time (S) delayed short-circuit protection.
- Instantaneous (I) short-circuit protection.
- Integrated earth-fault (G) protection.
- 690 V AC rated operational voltage.
- 42 kA rated ultimate short-circuit breaking capacity at 415 V AC.
- 42 kA Icw for 1 s.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- Fixed construction with horizontal rear terminals (HR).
Comprehensive LSIG Protection for High-Current Distribution
Air circuit breakers such as the ABB SACE Emax E1B protect high-current electrical distribution systems by detecting and interrupting abnormal current conditions before cables, busbars, switchgear and connected equipment can be damaged. The E1B 1600 combines a continuous current capability of 1600 A with robust short-circuit performance, making it suitable for main distribution and feeder duties in demanding industrial installations.
The PR122/P-LSIG electronic release combines long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection within one trip unit. The addition of the G function enables earth-fault protection alongside conventional overcurrent protection, while the fixed construction and horizontal rear terminals provide a secure arrangement for permanent switchboard installation.
Typical Applications
- Industrial low-voltage distribution switchboards.
- Main incoming and feeder circuit protection.
- High-current three-phase distribution systems.
- Manufacturing plants and production facilities.
- Commercial and infrastructure electrical distribution systems.
- Motor control centres and industrial power systems.
- Generator and transformer distribution installations.
- Fixed switchboard installations requiring comprehensive LSIG protection.
Technical Specifications
| Series | SACE Emax / New Emax |
|---|---|
| ABB order code | 1SDA055669R1 |
| Product type | Air circuit breaker |
| Frame / sub-type | E1B 1600 |
| Short-circuit performance level | B |
| Rated current (In) | 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) | 42 kA at 415 V AC |
| Rated short-time withstand current (Icw) | 42 kA for 1 s |
| Trip unit | PR122/P-LSIG R1600 |
| Release type | Electronic overcurrent release |
| Protection functions | L, S, I and G |
| Long-time protection | Overload protection |
| Short-time protection | Delayed short-circuit protection |
| Instantaneous protection | Short-circuit protection |
| Earth-fault protection | Integrated G function |
| Installation | Fixed |
| Terminal arrangement | Horizontal rear terminals (HR) |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Product net weight | 50 kg |
| EAN | 8015644570095 |
Frequently Asked Questions
What is the ABB 1SDA055669R1 used for?
The ABB 1SDA055669R1 is a 1600 A three-pole fixed SACE Emax air circuit breaker used for switching and protecting high-current low-voltage industrial and commercial electrical distribution systems.
What protection functions does the PR122/P-LSIG trip unit provide?
The PR122/P-LSIG R1600 electronic trip unit provides long-time overload (L), short-time delayed short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection.
What is the rated current of the ABB E1B 1600?
The ABB E1B 1600 has a rated current of 1600 A, and this version uses a three-pole configuration for three-phase low-voltage distribution systems.
Does the ABB 1SDA055669R1 provide earth-fault protection?
Yes. Its PR122/P-LSIG electronic release includes an integrated G earth-fault protection function in addition to long-time, short-time and instantaneous overcurrent protection.
Is the ABB 1SDA055669R1 fixed or withdrawable?
The 1SDA055669R1 is a fixed air circuit breaker with horizontal rear terminals, designed for permanent installation within compatible ABB SACE Emax low-voltage switchgear assemblies.
Trusted by Industrial Power Professionals Worldwide
ABB SACE Emax air circuit breakers are widely used in low-voltage distribution systems where dependable high-current switching, comprehensive electronic protection and robust switchboard integration are required.
