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1SDA057303R1 ABB E2N-A 1200 PR121/P-LI 1200A 3P Fixed Air Circuit Breaker
ABB 1SDA057303R1 E2N-A 1200 PR121/P-LI is a 1200 A three-pole fixed SACE Emax air circuit breaker with LI electronic overcurrent protection for high-current low-voltage power distribution systems.
£6,922.18
Why Choose the ABB E2N-A 1200 PR121/P-LI 1200A 3P Fixed Air Circuit Breaker?
The ABB E2N-A 1200 PR121/P-LI, order code 1SDA057303R1, is a robust SACE Emax air circuit breaker (ACB) designed for protection, switching and isolation in low-voltage power distribution systems. Built on the ABB E2N-A platform, this three-pole circuit breaker has a rated current of 1200 A and is suitable for industrial switchboards, power distribution centres and other demanding electrical installations.
The breaker is equipped with an ABB PR121/P-LI electronic overcurrent release, providing long-time overload and instantaneous short-circuit protection. This electronic protection helps safeguard cables, busbars, switchgear and connected equipment against damaging overcurrent conditions while providing reliable operation in critical distribution networks.
Configured as a three-pole fixed circuit breaker, the E2N-A 1200 PR121/P-LI is intended for permanent installation within a compatible low-voltage switchboard. Its 1200 A current rating, N performance level and electronic trip technology make it well suited to main incomer, feeder and general power distribution duties.
Key Advantages
- High-capacity 1200 A SACE Emax air circuit breaker for low-voltage power distribution.
- Three-pole fixed configuration for permanent switchboard installation.
- Integrated PR121/P-LI electronic overcurrent release.
- LI protection provides long-time overload and instantaneous short-circuit protection.
- N performance level for demanding electrical distribution applications.
- Electronic trip technology provides dependable protection of high-current circuits.
- Suitable for main incomer and feeder protection.
- ABB SACE Emax construction provides reliable switching, protection and isolation.
Key Features
- ABB SACE Emax E2N-A air circuit breaker.
- 1200 A rated current.
- Three-pole (3P) configuration.
- Fixed (F) installation version.
- PR121/P-LI electronic protection release.
- Long-time (L) overload protection.
- Instantaneous (I) short-circuit protection.
- N short-circuit performance level.
- Electronic overcurrent protection for dependable circuit safeguarding.
- Designed for low-voltage industrial power distribution.
- Suitable for fixed switchboard and power distribution assemblies.
Reliable LI Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB SACE Emax E2N-A provide switching, isolation and overcurrent protection for important low-voltage distribution circuits. The electronic release monitors current conditions and trips the breaker when protection thresholds are exceeded, helping prevent overload and short-circuit currents from damaging electrical infrastructure and connected equipment.
The PR121/P-LI release combines long-time protection against sustained overload conditions with instantaneous protection against severe short-circuit currents. Together with the fixed E2N-A construction, this provides a dependable protection solution for main incomers, feeders and other high-current circuits in industrial power distribution systems.
Typical Applications
- Industrial low-voltage switchboards.
- Main incomer circuit protection.
- High-current feeder protection.
- Manufacturing and process plants.
- Commercial and infrastructure power distribution.
- Transformer secondary distribution systems.
- Power distribution centres.
- Fixed low-voltage switchgear assemblies.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA057303R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker (ACB) |
| Frame / size | E2 |
| Performance level | N |
| Rated current (In) | 1200 A |
| Number of poles | 3P |
| Installation version | Fixed |
| Trip unit | PR121/P-LI electronic release |
| Protection functions | Long-time (L), instantaneous (I) |
| Current type | AC |
Frequently Asked Questions
What is the ABB 1SDA057303R1 used for?
The ABB 1SDA057303R1 is a 1200 A three-pole SACE Emax air circuit breaker designed for protection, switching and isolation of high-current low-voltage power distribution circuits.
What trip unit is fitted to the ABB E2N-A 1200?
This circuit breaker is equipped with an ABB PR121/P-LI electronic release, providing long-time overload and instantaneous short-circuit protection.
What is the rated current of the ABB 1SDA057303R1?
The E2N-A circuit breaker has a rated current of 1200 A.
What protection functions does PR121/P-LI provide?
The PR121/P-LI provides long-time protection against sustained overloads and instantaneous protection against severe short-circuit currents.
Is the ABB 1SDA057303R1 fixed or withdrawable?
The 1SDA057303R1 is a fixed three-pole circuit breaker intended for permanent installation within a compatible low-voltage switchgear assembly.
Trusted Power Distribution Protection from ABB
ABB SACE Emax air circuit breakers provide dependable switching and electronic overcurrent protection for demanding low-voltage distribution systems, helping protect critical feeders, incomers and electrical infrastructure.
