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.
1SDA055905R1 ABB E2N 1600 PR121/P-LSI 1600 A 3-Pole Withdrawable Air Circuit Breaker
ABB 1SDA055905R1 is a SACE Emax E2N 1600 A three-pole withdrawable air circuit breaker moving part with a PR121/P-LSI electronic overcurrent release for low-voltage power distribution protection.
£7,444.47
Why Choose the ABB E2N 1600 PR121/P-LSI 1SDA055905R1 Air Circuit Breaker?
The ABB 1SDA055905R1 is a high-performance SACE Emax E2N 1600 air circuit breaker (ACB) moving part designed for reliable protection and switching in industrial and commercial low-voltage electrical distribution systems. Part of the ABB SACE Emax E2 series, this three-pole withdrawable circuit breaker is equipped with a PR121/P-LSI electronic overcurrent release for comprehensive circuit protection.
Designed with a rated uninterrupted current of 1600 A, the E2N 1600 provides dependable protection for transformers, generators, switchboards and electrical distribution installations. Its PR121/P-LSI electronic trip unit provides overload, short-time short-circuit and instantaneous short-circuit protection, allowing the breaker to respond effectively to a range of electrical fault conditions.
The E2N 1600 has a rated ultimate short-circuit breaking capacity of 65 kA at 400–415 V AC and a rated short-time withstand current of 55 kA for 1 s. This version is supplied as the three-pole withdrawable moving part (W MP), enabling convenient installation, inspection and maintenance within compatible SACE Emax switchgear assemblies.
Key Advantages
- Heavy-duty 1600 A air circuit breaker for low-voltage power distribution.
- 65 kA ultimate short-circuit breaking capacity at 400–415 V AC.
- PR121/P-LSI electronic overcurrent release for advanced circuit protection.
- Provides overload, short-time and instantaneous short-circuit protection.
- Three-pole withdrawable moving-part design simplifies servicing and maintenance.
- Part of the proven ABB SACE Emax E2 circuit breaker platform.
Key Features
- ABB SACE Emax E2N 1600 series.
- 1600 A rated uninterrupted current (Iu).
- Three-pole configuration.
- PR121/P-LSI electronic trip unit.
- 65 kA Icu at 400–415 V AC.
- 55 kA rated short-time withstand current (Icw) for 1 s.
- Adjustable overload protection range of 640–1600 A.
- Withdrawable moving-part configuration for compatible Emax fixed portions.
- Open/closed position indication.
- Four auxiliary contacts fitted.
Reliable Circuit Protection for Power Distribution
Air circuit breakers such as the ABB SACE Emax E2N protect low-voltage electrical distribution systems against overloads and short circuits while also providing reliable switching and isolation. Their high current ratings and substantial short-circuit breaking capabilities make them particularly suitable for main distribution boards and other high-power electrical installations.
The PR121/P-LSI electronic trip unit continuously monitors current and provides configurable protection against overload, delayed short-circuit and instantaneous short-circuit conditions. Combined with the withdrawable Emax construction, this provides a practical solution for installations where dependable protection, maintainability and reduced servicing downtime are important.
Typical Applications
- Main low-voltage electrical distribution switchboards.
- Industrial power distribution systems.
- Transformer protection and distribution.
- Generator protection and switching.
- Manufacturing and process plant electrical systems.
- Commercial and infrastructure power distribution.
Technical Specifications
| Product family | SACE Emax |
|---|---|
| Series | E2N |
| ABB order code | 1SDA055905R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker moving part |
| Rated uninterrupted current (Iu) | 1600 A |
| Number of poles | 3 |
| Execution | Withdrawable moving part (W MP) |
| Trip unit | PR121/P-LSI |
| Protection functions | LSI – overload, short-time and instantaneous protection |
| Rated ultimate short-circuit breaking capacity (Icu) at 400–415 V | 65 kA |
| Rated short-time withstand current (Icw), 1 s | 55 kA |
| Overload release adjustment range | 640–1600 A |
| Short-time short-circuit release adjustment range | 1600–16000 A |
| Instantaneous short-circuit release adjustment range | 2400–24000 A |
| Earth-fault protection | No |
| Degree of protection | IP2X |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| EAN | 8015644572457 |
| Country of origin | Italy |
Frequently Asked Questions
What is the ABB 1SDA055905R1 used for?
The ABB 1SDA055905R1 is a 1600 A three-pole air circuit breaker moving part designed for protection and switching in low-voltage electrical distribution systems.
What is the current rating of the ABB E2N 1600 1SDA055905R1?
The circuit breaker has a rated uninterrupted current of 1600 A, with an adjustable overload release range of 640–1600 A.
What protection does the PR121/P-LSI trip unit provide?
The PR121/P-LSI electronic trip unit provides LSI protection functions covering overload, short-time short-circuit and instantaneous short-circuit faults.
What is the short-circuit breaking capacity of the E2N 1600?
The E2N 1600 has a rated ultimate short-circuit breaking capacity of 65 kA at 400–415 V AC and a rated short-time withstand current of 55 kA for 1 s.
Is the ABB 1SDA055905R1 a fixed or withdrawable circuit breaker?
This product is the three-pole withdrawable moving part (W MP) of the SACE Emax E2N circuit breaker system, designed for use with a compatible fixed portion.
Trusted for Industrial Power Distribution
ABB SACE Emax air circuit breakers are engineered for dependable protection, switching and isolation in demanding low-voltage electrical distribution systems, making the E2N 1600 a robust solution for industrial, commercial and infrastructure applications.
