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1SDA054627R1 ABB PR221DS-LS/I In=320 T4 320 3P
ABB 1SDA054627R1 PR221DS-LS/I is a 320 A three-pole solid-state electronic protection release providing overload and short-circuit protection for compatible SACE Tmax T4 320 moulded case circuit breaker assemblies.
£1,022.09
Why Choose the ABB PR221DS-LS/I In=320 T4 320 3P?
The ABB PR221DS-LS/I In=320 T4 320 3P, order code 1SDA054627R1, is a solid-state electronic protection release designed for compatible ABB SACE Tmax T4 320 moulded case circuit breaker assemblies. With a rated current of 320 A and a three-pole configuration, it provides electronic overload and short-circuit protection for AC electrical distribution applications.
The PR221DS-LS/I combines long-time overload protection with short-circuit protection, enabling a compatible Tmax T4 assembly to respond to sustained overcurrents and high-current fault conditions. Its electronic design provides adjustable protection characteristics suited to coordinated industrial and commercial distribution systems.
The 1SDA054627R1 is specifically designed for the 320 A T4 frame in a three-pole configuration. It is supplied as a protection release rather than a complete circuit breaker and must be combined with a compatible ABB SACE Tmax T4 breaking part and associated components to create the required complete MCCB assembly.
Key Advantages
- Genuine ABB PR221DS-LS/I electronic protection release.
- 320 A rated current for the Tmax T4 320 platform.
- Three-pole (3P) configuration for three-phase applications.
- Provides electronic long-time overload and short-circuit protection.
- Adjustable undelayed short-circuit protection from 320–3200 A.
- Designed specifically for compatible ABB SACE Tmax T4 moulded case circuit breakers.
- Electronic protection supports effective coordination within electrical distribution systems.
- Modular construction allows pairing with the appropriate compatible Tmax T4 breaking unit.
Key Features
- ABB PR221DS-LS/I series.
- Rated current (In): 320 A.
- Three-pole (3P) version.
- Designed for the ABB SACE Tmax T4 320 platform.
- Solid-state electronic release.
- LS/I protection functionality.
- Long-time protection for overload conditions.
- Short-circuit protection for high-current fault conditions.
- 320–3200 A undelayed short-circuit release setting range.
- Designed for compatible AC power circuit breaker applications.
- Supplied as a protection component rather than a complete MCCB.
Electronic Protection for ABB SACE Tmax T4 320
The electronic release forms the protection element of a compatible moulded case circuit breaker assembly. It monitors current conditions and initiates operation of the breaker mechanism when the applicable protection thresholds are exceeded, while the associated Tmax T4 breaking unit performs the physical interruption of the electrical circuit.
With a rated current of 320 A and an undelayed short-circuit release adjustment range of 320–3200 A, the 1SDA054627R1 provides configurable protection for compatible three-pole T4 320 assemblies. This makes it suitable for industrial feeders, switchboards and distribution systems where coordinated electronic overload and short-circuit protection is required.
Typical Applications
- Compatible ABB SACE Tmax T4 320 moulded case circuit breaker assemblies.
- Industrial electrical distribution systems.
- Three-phase feeder protection.
- Electrical switchboards and distribution panels.
- Commercial building power distribution.
- Industrial machinery and process equipment.
- OEM electrical distribution assemblies.
- Applications requiring adjustable electronic overload and short-circuit protection.
Technical Specifications
| Series | PR221DS-LS/I / SACE Tmax T4 |
|---|---|
| ABB product group | 310511-T-Max T4 - T8 |
| Order code | 1SDA054627R1 |
| EAN | 8015644557324 |
| Product type | Solid-state electronic protection release |
| Compatible breaker platform | ABB SACE Tmax T4 320 |
| Rated current (In) | 320 A |
| Number of poles | 3 |
| Protection release | PR221DS-LS/I |
| Protection functions | Long-time overload and short-circuit protection |
| Undelayed short-circuit release setting range | 320–3200 A |
| Application | AC |
| Suitable for power circuit breaker | Yes |
| Complete circuit breaker | No |
Frequently Asked Questions
What is the ABB 1SDA054627R1?
The ABB 1SDA054627R1 is a PR221DS-LS/I solid-state electronic protection release rated at 320 A and designed for compatible three-pole ABB SACE Tmax T4 320 moulded case circuit breaker assemblies.
Is the ABB 1SDA054627R1 a complete circuit breaker?
No. The 1SDA054627R1 is an electronic protection release, not a complete MCCB. It is intended to be combined with a compatible ABB SACE Tmax T4 breaking part and associated circuit breaker components.
What protection does the PR221DS-LS/I provide?
The PR221DS-LS/I provides electronic long-time overload and short-circuit protection for compatible ABB SACE Tmax T4 circuit breaker assemblies.
What is the rated current of the ABB 1SDA054627R1?
The 1SDA054627R1 has a rated current of 320 A and is designed for the three-pole Tmax T4 320 platform.
What is the short-circuit release adjustment range?
The undelayed short-circuit release can be adjusted from 320–3200 A, providing a range of short-circuit protection settings for compatible applications.
Trusted ABB Circuit Protection
ABB SACE Tmax electronic releases provide dependable overload and short-circuit protection for compatible moulded case circuit breaker assemblies, supporting coordinated and configurable protection across industrial and commercial electrical distribution systems.
