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1SDA054632R1 ABB PR221DS-I In=320 T4 4p Electronic Trip Unit
ABB PR221DS-I In=320 T4 4p electronic trip unit providing instantaneous short-circuit protection for ABB Tmax T4 moulded case circuit breakers.
£1,169.96
Why Choose the ABB PR221DS-I In=320 T4 4p Electronic Trip Unit?
The ABB PR221DS-I In=320 T4 4p is a reliable electronic trip unit designed for ABB Tmax T4 moulded case circuit breakers, providing accurate instantaneous short-circuit protection for low-voltage electrical distribution systems. As part of the ABB Tmax electronic release family, this protection unit delivers dependable fault response and improved circuit breaker performance for industrial and commercial applications.
Engineered for use with compatible ABB Tmax T4 circuit breakers, the PR221DS-I combines electronic protection technology with compact construction to enhance system safety and operational reliability. Its instantaneous protection function helps safeguard electrical equipment against high fault currents while maintaining efficient circuit breaker operation.
With a rated current setting of 320 A and four-pole Tmax T4 compatibility, the ABB PR221DS-I electronic release is suitable for applications requiring dependable short-circuit protection in modern low-voltage distribution systems.
Key Advantages
- Electronic instantaneous protection for reliable short-circuit fault response.
- 320 A rated current setting suitable for higher-power distribution applications.
- Designed specifically for ABB Tmax T4 moulded case circuit breakers.
- Improves circuit breaker protection performance and system reliability.
- Compact electronic design enables efficient integration into MCCB assemblies.
- Reliable ABB protection technology for industrial electrical systems.
Key Features
- ABB PR221DS-I electronic trip unit.
- Compatible with ABB Tmax T4 circuit breakers.
- Instantaneous (I) short-circuit protection.
- Rated current setting: 320 A.
- Four-pole Tmax T4 application.
- Electronic protection release for improved accuracy and reliability.
- Designed for low-voltage AC distribution systems.
- Suitable for industrial and commercial protection assemblies.
Reliable Protection for Industrial Power Systems
The ABB PR221DS-I electronic trip unit enhances Tmax T4 circuit breaker performance by providing fast and accurate response to short-circuit conditions. This helps protect electrical equipment, cables and distribution systems from damaging fault currents.
ABB Tmax electronic releases are designed for dependable protection solutions in industrial environments, combining precise current sensing with straightforward integration into established MCCB platforms.
Typical Applications
- Industrial switchboards and distribution panels.
- Electrical protection assemblies.
- Motor and machinery supply systems.
- Commercial power distribution equipment.
- Industrial automation installations.
- Low-voltage switchgear systems.
Technical Specifications
| Series | Tmax T4 |
|---|---|
| Order code | 1SDA054632R1 |
| Product type | Electronic trip unit |
| Compatible circuit breaker | ABB Tmax T4 |
| Rated current setting | 320 A |
| Protection function | Instantaneous short-circuit protection |
| Trip unit type | Electronic I release |
| Number of poles | 4 poles |
| Application | Low-voltage circuit protection systems |
Frequently Asked Questions
What is the ABB PR221DS-I In=320 T4 4p used for?
This electronic trip unit provides instantaneous short-circuit protection for compatible ABB Tmax T4 moulded case circuit breakers.
What is the rated current setting of this trip unit?
The ABB PR221DS-I In=320 has a rated current setting of 320 A.
Which circuit breaker series is this release compatible with?
The trip unit is designed for use with ABB Tmax T4 moulded case circuit breakers.
What protection function is included?
The PR221DS-I provides instantaneous short-circuit protection.
How many poles is this application designed for?
This trip unit configuration is intended for four-pole ABB Tmax T4 circuit breaker applications.
Trusted by Industrial Engineers Worldwide
ABB Tmax electronic trip units are widely selected by electrical engineers and system designers for accurate protection, reliable operation and seamless integration with ABB moulded case circuit breakers.
