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1SDA054701R1 ABB PR221DS-I In=320 T5 4p Electronic Trip Unit
ABB PR221DS-I In=320 T5 4p electronic trip unit providing instantaneous short-circuit protection for Tmax T5 moulded case circuit breakers.
£1,250.66
Why Choose the ABB PR221DS-I In=320 T5 4p Electronic Trip Unit?
The ABB PR221DS-I In=320 T5 4p is a reliable electronic trip unit designed for ABB SACE Tmax T5 moulded case circuit breakers, providing accurate instantaneous short-circuit protection for low-voltage electrical distribution systems. As part of the ABB Tmax T electronic protection accessory range, it delivers dependable fault monitoring and rapid circuit interruption for industrial and commercial applications.
This electronic release continuously monitors current conditions and provides fast response when short-circuit levels exceed the configured protection threshold. The PR221DS-I design offers a compact and efficient protection solution for applications requiring reliable instantaneous fault protection and ABB Tmax T5 compatibility.
With a rated current of 320 A and compatibility with ABB Tmax T5 4-pole circuit breakers, the ABB PR221DS-I In=320 T5 4p is suitable for demanding low-voltage distribution applications requiring dependable electronic protection.
Key Advantages
- Electronic instantaneous protection technology for ABB Tmax T5 moulded case circuit breakers.
- 320 A rated current suitable for industrial electrical distribution systems.
- Provides rapid short-circuit fault protection.
- Four-pole configuration for three-phase systems with neutral.
- Improves fault response accuracy compared with traditional magnetic releases.
- Designed for reliable integration with ABB SACE Tmax T circuit breaker systems.
Key Features
- ABB PR221DS-I In=320 T5 4p electronic trip unit.
- Suitable for ABB SACE Tmax T5 circuit breakers.
- Four-pole (4P) configuration.
- Rated current In: 320 A.
- Instantaneous short-circuit protection.
- Solid-state electronic release technology.
- Fast response to high fault current conditions.
- Designed for industrial low-voltage circuit protection applications.
Reliable Electronic Protection for Low-Voltage Systems
Electronic trip units such as the ABB PR221DS-I In=320 T5 4p provide accurate and rapid protection by electronically monitoring electrical current conditions and responding immediately to dangerous short-circuit events. This enables improved protection performance and dependable circuit breaker operation.
Installed within ABB Tmax T5 moulded case circuit breakers, the PR221DS-I release provides a durable and efficient solution for industrial switchboards, distribution panels and electrical infrastructure where reliable fault protection is essential.
Typical Applications
- Industrial power distribution boards.
- Low-voltage switchgear assemblies.
- Commercial electrical installations.
- Machinery and automation systems.
- Factory electrical distribution networks.
- Applications requiring dependable electronic short-circuit protection.
Technical Specifications
| Series | Tmax T |
|---|---|
| Order code | 1SDA054701R1 |
| Product type | Electronic trip unit |
| Suitable for | ABB SACE Tmax T5 circuit breakers |
| Release type | PR221DS-I |
| Rated current (In) | 320 A |
| Number of poles | 4P |
| Protection function | Instantaneous short-circuit protection |
| Standards | IEC |
| Product category | Accessories for Tmax T moulded case circuit breakers |
Frequently Asked Questions
What is the ABB PR221DS-I In=320 T5 4p used for?
This electronic trip unit provides instantaneous short-circuit protection for ABB Tmax T5 moulded case circuit breakers.
Which circuit breakers is the PR221DS-I In=320 T5 4p compatible with?
The unit is designed for ABB SACE Tmax T5 circuit breakers.
What is the rated current of this trip unit?
The ABB PR221DS-I In=320 T5 4p has a rated current of 320 A.
What type of protection does this release provide?
The PR221DS-I release provides electronic instantaneous short-circuit protection.
How many poles does this trip unit have?
The ABB PR221DS-I In=320 T5 4p is a four-pole (4P) trip unit.
Trusted by Industrial Power Engineers Worldwide
ABB Tmax T electronic trip units are widely used in low-voltage electrical systems to deliver dependable protection, accurate fault response and reliable integration with ABB moulded case circuit breakers.
