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1SDA054608R1 ABB PR221DS-I In=250 T4 3P
ABB 1SDA054608R1 is a PR221DS-I 250 A electronic protection release providing instantaneous short-circuit protection for compatible three-pole SACE Tmax T4 moulded case circuit breakers.
£1,531.91
Why Choose the ABB PR221DS-I In=250 T4 3P?
The ABB PR221DS-I In=250 T4 3P, order code 1SDA054608R1, is an electronic protection release for ABB SACE Tmax T4 three-pole moulded case circuit breakers. With a rated current of 250 A, it is designed to provide instantaneous short-circuit protection as part of a compatible Tmax T4 circuit breaker assembly.
The PR221DS-I is the instantaneous-protection version of ABB's PR221DS electronic trip-unit family. Its I protection function detects high short-circuit currents and initiates rapid tripping without an intentional time delay, helping the associated Tmax T4 breaking unit interrupt severe fault conditions.
Designed specifically for the Tmax T4 three-pole platform, the 1SDA054608R1 supports ABB's modular approach to moulded case circuit breaker configuration. The release is intended to be combined with a compatible Tmax T4 breaking part rather than used as a standalone switching or circuit-interruption device.
Key Advantages
- Genuine ABB SACE Tmax PR221DS-I electronic protection release.
- 250 A rated current.
- Provides instantaneous short-circuit protection.
- Electronic fault detection for compatible Tmax T4 circuit breakers.
- Designed specifically for ABB Tmax T4 three-pole assemblies.
- Modular construction supports configuration with compatible T4 breaking parts.
- Suitable for industrial and commercial low-voltage distribution protection.
Key Features
- ABB PR221DS series.
- PR221DS-I electronic protection release.
- Rated current (In): 250 A.
- I instantaneous short-circuit protection function.
- Electronic overcurrent detection technology.
- Designed for the ABB SACE Tmax T4 frame.
- Three-pole circuit breaker compatibility.
- Designed for use with a compatible Tmax T4 breaking unit.
- Suitable for low-voltage power-distribution circuit protection.
Electronic Instantaneous Protection for ABB Tmax T4 Circuit Breakers
The PR221DS-I monitors the current flowing through a compatible Tmax T4 circuit breaker and provides an instantaneous trip function when the current reaches the configured short-circuit protection threshold. This rapid response is intended to protect the electrical distribution system against severe short-circuit faults.
The 1SDA054608R1 is a protection release rather than a complete circuit breaker. When integrated with a compatible three-pole ABB Tmax T4 breaking part, it enables the resulting MCCB assembly to provide 250 A electronic instantaneous short-circuit protection together with the interruption performance of the selected breaking unit.
Typical Applications
- ABB SACE Tmax T4 moulded case circuit breaker assemblies.
- Industrial low-voltage distribution switchboards.
- Feeder short-circuit protection.
- Main and sub-distribution panels.
- Manufacturing and process plant electrical systems.
- Commercial and infrastructure power distribution.
- Replacement or configuration of compatible Tmax T4 protection releases.
Technical Specifications
| Series | SACE Tmax PR221DS |
|---|---|
| Order code | 1SDA054608R1 |
| Product type | Electronic protection release |
| Protection release | PR221DS-I |
| Protection technology | Electronic |
| Rated current (In) | 250 A |
| Protection function | I – instantaneous short-circuit protection |
| Compatible circuit breaker frame | ABB SACE Tmax T4 |
| Number of poles | 3 |
| Application | Moulded case circuit breaker protection |
| Product group | Tmax T4–T8 |
Frequently Asked Questions
What is the ABB 1SDA054608R1?
The ABB 1SDA054608R1 is a PR221DS-I electronic protection release rated at 250 A for compatible three-pole ABB SACE Tmax T4 moulded case circuit breakers.
What protection function does the ABB PR221DS-I provide?
The PR221DS-I provides the I instantaneous short-circuit protection function, which is designed to initiate rapid tripping when a high short-circuit current is detected.
What is the rated current of the ABB 1SDA054608R1?
The protection release has a rated current (In) of 250 A.
Which circuit breaker frame is the ABB 1SDA054608R1 designed for?
The 1SDA054608R1 is designed for compatible ABB SACE Tmax T4 three-pole moulded case circuit breakers.
Is the ABB 1SDA054608R1 a complete circuit breaker?
No. The 1SDA054608R1 is an electronic protection release and is intended to be combined with a compatible ABB Tmax T4 breaking part and the other components required for the completed MCCB assembly.
Is the ABB PR221DS-I a thermomagnetic trip unit?
No. The PR221DS-I is an electronic protection release. This version provides instantaneous short-circuit protection for a compatible ABB Tmax T4 circuit breaker assembly.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax protection releases and moulded case circuit breaker components are used in industrial and commercial power-distribution systems worldwide, providing configurable protection and dependable fault management for low-voltage electrical installations.
