Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SDA055794R1 ABB E2B1600 PR121/P-LSIG 1600 A 3-Pole Air Circuit Breaker
ABB 1SDA055794R1 SACE New Emax E2B1600 three-pole fixed air circuit breaker with 1600 A rated current, PR121/P-LSIG electronic protection and horizontal rear terminals for low-voltage power distribution.
£9,146.91
Why Choose the ABB 1SDA055794R1 E2B1600 Air Circuit Breaker?
The ABB 1SDA055794R1 is a robust SACE Emax E2B1600 air circuit breaker (ACB) designed for switching and protection in low-voltage electrical distribution systems. As part of the ABB New Emax series, this three-pole fixed circuit breaker combines a rated uninterrupted current of 1600 A with the PR121/P-LSIG electronic overcurrent release.
The PR121/P-LSIG trip unit provides comprehensive long-time (L), short-time (S), instantaneous (I) and earth-fault (G) protection. These electronic protection functions help safeguard electrical installations against overloads, short circuits and earth faults, making the breaker suitable for demanding industrial and commercial power distribution applications.
This E2B1600 configuration features a three-pole fixed construction with horizontal rear terminals. Its 1600 A current rating and electronically adjustable LSIG protection make it well suited to switchboards, distribution panels and electrical infrastructure requiring dependable high-current circuit protection.
Key Advantages
- Heavy-duty ABB SACE Emax air circuit breaker for low-voltage power distribution.
- 1600 A rated uninterrupted current for high-current electrical installations.
- Three-pole configuration suitable for three-phase distribution systems.
- Advanced PR121/P-LSIG electronic overcurrent release.
- Provides long-time, short-time, instantaneous and earth-fault protection.
- Fixed construction designed for permanent switchboard installation.
- Horizontal rear terminals support practical integration into low-voltage switchgear.
Key Features
- ABB SACE New Emax E2B1600 series.
- 1600 A rated uninterrupted current.
- Three-pole fixed configuration.
- PR121/P-LSIG electronic trip unit.
- Long-time overload protection.
- Short-time short-circuit protection.
- Instantaneous short-circuit protection.
- Integrated earth-fault protection.
- Electronic protection settings for coordinated power distribution.
- Horizontal rear main terminals.
- Designed for integration into industrial and commercial low-voltage switchboards.
Reliable Circuit Protection for Power Distribution
Air circuit breakers such as the ABB SACE Emax E2B1600 provide switching, isolation and protection for high-current low-voltage distribution circuits. The electronic trip unit monitors electrical conditions and operates the circuit breaker when configured overload, short-circuit or earth-fault thresholds are reached.
The PR121/P-LSIG release combines four important protection functions in a single electronic trip unit. Long-time, short-time, instantaneous and earth-fault protection support coordinated protection throughout electrical distribution networks, while the fixed three-pole construction makes the 1SDA055794R1 suitable for permanent integration into compatible switchboards.
Typical Applications
- Industrial low-voltage switchboards and distribution panels.
- Main incoming and feeder circuit protection.
- Commercial building electrical distribution systems.
- Manufacturing and process industry power systems.
- Infrastructure and utility distribution equipment.
- High-current machinery and plant electrical installations.
Technical Specifications
| Series | SACE New Emax E2B |
|---|---|
| Order code / MPN | 1SDA055794R1 |
| ABB product group | 310513-New Emax |
| Product type | Air circuit breaker (ACB) |
| Breaker frame | E2B1600 |
| Rated uninterrupted current | 1600 A |
| Number of poles | 3 |
| Trip unit | PR121/P-LSIG |
| Release technology | Electronic |
| Protection functions | L (long-time), S (short-time), I (instantaneous) and G (earth fault) |
| Earth-fault protection | Integrated |
| Construction | Fixed |
| Main terminals | Horizontal rear terminals |
Frequently Asked Questions
What is the ABB 1SDA055794R1 used for?
The ABB 1SDA055794R1 is a 1600 A three-pole fixed air circuit breaker designed for switching and protecting high-current low-voltage electrical distribution circuits.
What protection functions does the ABB 1SDA055794R1 provide?
The fitted PR121/P-LSIG electronic trip unit provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection.
What is the rated current of the ABB 1SDA055794R1?
The E2B1600 circuit breaker has a rated uninterrupted current of 1600 A.
How many poles does the ABB 1SDA055794R1 have?
The 1SDA055794R1 is a three-pole air circuit breaker designed for three-phase low-voltage distribution systems.
Is the ABB 1SDA055794R1 fixed or withdrawable?
The 1SDA055794R1 is a fixed air circuit breaker with horizontal rear terminals for permanent installation within compatible low-voltage switchgear.
Trusted by Electrical Professionals Worldwide
ABB SACE Emax air circuit breakers are designed for dependable switching and protection in demanding low-voltage power distribution systems, combining high-current performance with advanced electronic protection and flexible switchboard integration.
