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1SDA054699R1 ABB PR221DS-LS/IIn=320T54p 320 A 4-Pole Electronic Trip Unit

1SDA054699R1 ABB PR221DS-LS/IIn=320T54p 320 A 4-Pole Electronic Trip Unit

ABB PR221DS-LS/IIn=320T54p 1SDA054699R1 is a 320 A four-pole electronic trip unit providing LS/I overload and short-circuit protection for compatible ABB SACE Tmax T5 moulded-case circuit breakers.

SKU: 1SDA054699R1MPN: 1SDA054699R1
Price
List Price £1,667.54 ex VAT
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£1,250.66 25% OFF
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Manufacturer Lead Time Estimated Delivery 10 weeks
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Why Choose the ABB PR221DS-LS/IIn=320T54p Electronic Trip Unit?

The ABB PR221DS-LS/IIn=320T54p, order code 1SDA054699R1, is a four-pole electronic trip unit designed for use with ABB SACE Tmax T5 moulded-case circuit breakers. As part of the ABB Tmax T5 protection system, it provides reliable electronic overcurrent protection for low-voltage electrical distribution applications in industrial and commercial installations.

The PR221DS-LS/I uses electronic protection technology to provide configurable protection against overload and short-circuit conditions. Its LS/I protection functionality combines long-time overload protection with selectable short-time or instantaneous short-circuit protection, providing greater flexibility and precision than conventional thermomagnetic protection.

With a rated current of 320 A and a four-pole configuration, the PR221DS-LS/IIn=320T54p is designed for compatible ABB Tmax T5 circuit breakers. The electronic release is well suited to power distribution systems requiring dependable protection, adjustable operating characteristics and effective coordination with upstream and downstream protective devices.

Key Advantages

  • Genuine ABB electronic trip unit designed for Tmax T5 circuit breakers.
  • 320 A rated current for industrial and commercial power distribution.
  • Four-pole configuration for suitable three-phase, four-wire electrical systems.
  • LS/I protection functionality for overload and short-circuit protection.
  • Electronic operation provides accurate and configurable circuit protection.
  • Supports effective protection coordination in low-voltage distribution systems.

Key Features

  • ABB SACE Tmax T5 series protection component.
  • PR221DS-LS/I electronic release.
  • 320 A rated current.
  • Four-pole design.
  • L function for long-time overload protection.
  • S/I functionality for short-time or instantaneous short-circuit protection.
  • Electronic current sensing for accurate protection performance.
  • Designed specifically for compatible ABB SACE Tmax T5 moulded-case circuit breakers.

Reliable Electronic Protection for Electrical Distribution

Electronic trip units such as the ABB PR221DS-LS/I monitor current conditions and initiate circuit breaker operation when configured protection thresholds are exceeded. Long-time protection responds to sustained overload conditions, while the short-circuit protection functions provide rapid interruption of potentially damaging fault currents.

The PR221DS-LS/I is designed for dependable integration within the ABB SACE Tmax platform. Its electronic protection characteristics make it suitable for distribution systems where accurate overload protection, short-circuit protection and effective coordination between protective devices are important for continuity and safety.

Typical Applications

  • Industrial low-voltage distribution switchboards.
  • Commercial electrical distribution systems.
  • Three-phase, four-wire power distribution.
  • Main and sub-distribution panels.
  • Industrial machinery power distribution.
  • Feeder and branch circuit protection.

Technical Specifications

Series SACE Tmax T5
Order code 1SDA054699R1
Product group 310511-T-Max T4 - T8
Product type Electronic trip unit / release
Trip unit type PR221DS-LS/I
Rated current 320 A
Number of poles 4
Protection functions L and S/I
Protection technology Electronic
Application Low-voltage electrical distribution protection
Compatible circuit breaker family ABB SACE Tmax T5

Frequently Asked Questions

What is the ABB PR221DS-LS/IIn=320T54p used for?

The ABB PR221DS-LS/IIn=320T54p is an electronic trip unit designed to provide overload and short-circuit protection with compatible ABB SACE Tmax T5 moulded-case circuit breakers.

What is the rated current of the ABB PR221DS-LS/I 1SDA054699R1?

The PR221DS-LS/IIn=320T54p has a rated current of 320 A.

What protection functions does the PR221DS-LS/I provide?

The release provides L and S/I protection functionality, combining long-time overload protection with short-time or instantaneous short-circuit protection.

How many poles does the ABB 1SDA054699R1 have?

The PR221DS-LS/IIn=320T54p is a four-pole electronic trip unit for compatible low-voltage distribution systems.

Which circuit breaker series is the ABB 1SDA054699R1 designed for?

The PR221DS-LS/IIn=320T54p is designed for use with compatible ABB SACE Tmax T5 moulded-case circuit breakers.

Trusted ABB Circuit Protection

ABB SACE Tmax electronic protection solutions combine moulded-case circuit breaker technology with configurable electronic trip functions to provide dependable overload and short-circuit protection for industrial and commercial electrical distribution systems.