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1SDA054604R1 ABB PR221DS-LS/I In=160 T4 3p Electronic Trip Unit

1SDA054604R1 ABB PR221DS-LS/I In=160 T4 3p Electronic Trip Unit

ABB 1SDA054604R1 PR221DS-LS/I is a 160 A three-pole electronic trip unit providing overload and short-circuit protection for compatible SACE Tmax T4 moulded case circuit breakers.

SKU: 1SDA054604R1MPN: 1SDA054604R1
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List Price £2,042.54 ex VAT
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Why Choose the ABB PR221DS-LS/I In=160 T4 3p Electronic Trip Unit?

The ABB PR221DS-LS/I In=160 T4 3p, order code 1SDA054604R1, is a 160 A three-pole electronic trip unit designed for compatible ABB SACE Tmax T4 moulded case circuit breakers. It provides electronic overload and short-circuit protection as part of a modular Tmax T4 circuit breaker assembly.

The PR221DS-LS/I release provides long-time overload protection together with selectable short-circuit protection functions. Electronic sensing delivers repeatable protection characteristics and enables the completed Tmax T4 MCCB to be configured more precisely for industrial and commercial distribution circuits than a basic fixed protection arrangement.

Supplied as a protection release rather than a complete circuit breaker, the 1SDA054604R1 is intended to be combined with a compatible ABB Tmax T4 breaking part. Its 160 A rated current and three-pole format make it suitable for compatible three-phase AC distribution applications, replacement work and modular MCCB assembly.

Key Advantages

  • Genuine ABB PR221DS-LS/I electronic trip unit.
  • 160 A rated current for compatible Tmax T4 circuit breakers.
  • Three-pole configuration for three-phase electrical systems.
  • Electronic sensing for accurate and repeatable protection.
  • Provides long-time overload and short-circuit protection.
  • Designed specifically for the ABB SACE Tmax T4 platform.
  • Modular format supports new breaker assembly and compatible replacement applications.
  • Suitable for demanding industrial low-voltage distribution systems.

Key Features

  • PR221DS-LS/I electronic release.
  • 160 A rated current.
  • Three-pole configuration.
  • Electronic trip technology.
  • Long-time overload protection function.
  • Short-circuit protection functions.
  • Designed for compatible ABB Tmax T4 MCCBs.
  • Modular circuit breaker protection component.
  • Suitable for industrial and commercial AC distribution circuits.
  • ABB SACE Tmax T construction and compatibility.

PR221DS-LS/I Protection for ABB Tmax T4

The PR221DS-LS/I uses electronic current sensing to supervise the conductors protected by a compatible Tmax T4 circuit breaker. Its long-time function protects against sustained overload conditions, while its short-circuit functions provide faster intervention when substantially higher fault currents occur.

Because the 1SDA054604R1 is the protection release rather than the complete MCCB, the final interrupting performance and installation characteristics depend on the compatible Tmax T4 breaking part with which it is assembled. This modular approach allows ABB Tmax T4 components to be selected according to the current rating, protection requirements and prospective fault level of the installation.

Typical Applications

  • ABB SACE Tmax T4 moulded case circuit breaker assemblies.
  • Industrial switchboards and distribution panels.
  • Three-phase AC power distribution circuits.
  • Machinery and process control panels.
  • Compatible Tmax T4 trip-unit replacement applications.
  • OEM electrical distribution and control equipment.

Technical Specifications

Series SACE Tmax T
ABB order code 1SDA054604R1
Product type Electronic trip unit / protection release
Release PR221DS-LS/I
Trip technology Electronic
Rated current (In) 160 A
Number of poles 3
Protection functions Long-time overload and short-circuit protection
Compatible circuit breaker ABB SACE Tmax T4
Application AC power distribution circuit protection
Installation role Protection release for compatible modular MCCB assembly

Frequently Asked Questions

What is the ABB 1SDA054604R1?

The ABB 1SDA054604R1 is a PR221DS-LS/I electronic trip unit rated at 160 A for compatible three-pole ABB SACE Tmax T4 moulded case circuit breakers.

What is the rated current of the ABB PR221DS-LS/I 1SDA054604R1?

The electronic trip unit has a rated current of 160 A.

How many poles is the ABB PR221DS-LS/I 1SDA054604R1 designed for?

This version is designed for a three-pole ABB Tmax T4 circuit breaker configuration.

What protection does the PR221DS-LS/I provide?

The PR221DS-LS/I provides electronic long-time overload and short-circuit protection for compatible ABB Tmax T4 circuit breaker assemblies.

Is the ABB 1SDA054604R1 a complete circuit breaker?

No. The 1SDA054604R1 is an electronic protection release that must be combined with a compatible ABB Tmax T4 breaking part and any other components required for the completed circuit breaker assembly.

Trusted ABB Electronic Circuit Protection

ABB SACE Tmax electronic trip units provide dependable protection for modular moulded case circuit breaker assemblies, combining electronic current sensing with configurable overload and short-circuit protection for industrial power distribution systems.