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1SDA054628R1 ABB PR221DS-I In=320 T4 320 3P
ABB 1SDA054628R1 PR221DS-I is a 320 A three-pole solid-state electronic protection release providing instantaneous short-circuit protection for compatible SACE Tmax T4 320 moulded case circuit breaker assemblies.
£1,022.09
Why Choose the ABB PR221DS-I In=320 T4 320 3P?
The ABB PR221DS-I In=320 T4 320 3P, order code 1SDA054628R1, is a solid-state electronic protection release designed for compatible ABB SACE Tmax T4 320 moulded case circuit breaker assemblies. Rated at 320 A, this three-pole release provides dedicated instantaneous short-circuit protection for AC electrical distribution applications.
The PR221DS-I is an instantaneous-only electronic release. Its I protection function is designed to initiate rapid tripping when a sufficiently high short-circuit current is detected, helping the compatible Tmax T4 breaking unit interrupt severe fault currents without an intentional time delay.
The 1SDA054628R1 is specifically configured for the Tmax T4 320 platform in a three-pole arrangement. It is supplied as a protection release rather than a complete moulded case circuit breaker and is intended to be combined with a compatible ABB Tmax T4 breaking part and associated components to create the required complete MCCB assembly.
Key Advantages
- Genuine ABB PR221DS-I electronic protection release.
- 320 A rated current for compatible Tmax T4 320 assemblies.
- Three-pole (3P) configuration for three-phase applications.
- Provides dedicated instantaneous short-circuit protection.
- Electronic protection technology designed for rapid response to high-current faults.
- Designed specifically for compatible ABB SACE Tmax T4 320 moulded case circuit breakers.
- Modular construction allows pairing with a suitable Tmax T4 breaking unit.
- Suitable for industrial and commercial AC distribution applications requiring instantaneous fault protection.
Key Features
- ABB PR221DS-I series.
- Rated current (In): 320 A.
- Three-pole (3P) version.
- Designed for the ABB SACE Tmax T4 320 platform.
- Solid-state electronic release.
- I protection function for instantaneous short-circuit protection.
- Designed for three-phase AC circuit breaker applications.
- Suitable for compatible power circuit breakers.
- Supplied as a protection component rather than a complete MCCB.
- ABB EAN 8015644557331.
Instantaneous Protection for ABB SACE Tmax T4 320
An electronic protection release monitors the current passing through a compatible circuit breaker and initiates tripping when its protection threshold is reached. The PR221DS-I is dedicated to instantaneous short-circuit protection, while the associated Tmax T4 breaking part performs the physical interruption of the fault current.
With a rated current of 320 A and a three-pole configuration, the 1SDA054628R1 is suited to compatible T4 320 assemblies where instantaneous high-current fault protection is required. Because this PR221DS-I version is focused on the I protection function, overload protection must be considered separately as part of the overall protection design where required.
Typical Applications
- Compatible ABB SACE Tmax T4 320 moulded case circuit breaker assemblies.
- Three-phase industrial electrical distribution systems.
- Applications requiring instantaneous short-circuit protection.
- Electrical switchboards and distribution panels.
- Industrial feeder circuits with separately coordinated overload protection.
- Industrial machinery and process equipment.
- Commercial power distribution systems.
- OEM electrical distribution and control assemblies.
Technical Specifications
| Series | PR221DS-I / SACE Tmax T4 |
|---|---|
| ABB product group | 310511-T-Max T4 - T8 |
| Order code | 1SDA054628R1 |
| EAN | 8015644557331 |
| 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-I |
| Protection function | Instantaneous short-circuit protection (I) |
| Application | AC |
| Suitable for power circuit breaker | Yes |
| Complete circuit breaker | No |
Frequently Asked Questions
What is the ABB 1SDA054628R1?
The ABB 1SDA054628R1 is a PR221DS-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 1SDA054628R1 a complete circuit breaker?
No. The 1SDA054628R1 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-I provide?
The PR221DS-I provides instantaneous short-circuit protection, designed to initiate rapid circuit breaker operation when a high-current fault reaches the applicable instantaneous protection threshold.
What is the rated current of the ABB 1SDA054628R1?
The 1SDA054628R1 has a rated current of 320 A and is designed for compatible three-pole Tmax T4 320 circuit breaker assemblies.
Does the PR221DS-I provide overload protection?
The PR221DS-I is an instantaneous short-circuit protection release rather than an LS/I overload-and-short-circuit release. Where overload protection is required, it must be addressed by the overall protection arrangement using suitable compatible protective equipment.
Trusted ABB Circuit Protection
ABB SACE Tmax electronic releases provide dedicated protection functions for compatible moulded case circuit breaker assemblies, supporting dependable and coordinated fault protection across industrial and commercial electrical distribution systems.
