1SDA054150R1 ABB T4V 320 PR221DS-I 320 A 3-Pole MCCB

1SDA054150R1 ABB T4V 320 PR221DS-I 320 A 3-Pole MCCB

ABB 1SDA054150R1 is a T4V 320 fixed three-pole moulded case circuit breaker with a 320 A PR221DS-I electronic trip unit for overload and instantaneous short-circuit protection in demanding low-voltage power distribution systems.

SKU: 1SDA054150R1MPN: 1SDA054150R1
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List Price £4,415.95 ex VAT
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Why Choose the ABB 1SDA054150R1 T4V 320 Moulded Case Circuit Breaker?

The ABB 1SDA054150R1, designated T4V 320 PR221DS-I In=320 3p F F, is a high-performance moulded case circuit breaker (MCCB) designed for dependable protection of low-voltage power distribution circuits. As part of the proven ABB SACE Tmax T4 series, it combines a compact design, electronic overcurrent protection and high short-circuit interruption performance for demanding industrial and commercial electrical systems.

This circuit breaker is equipped with the PR221DS-I solid-state electronic trip unit rated at 320 A. The release provides long-time overload and instantaneous short-circuit protection, helping safeguard conductors, switchgear and downstream electrical equipment against damaging overcurrent and fault conditions.

The T4V 320 is supplied as a fixed three-pole circuit breaker with front terminals. Its high-performance V breaking-capacity class makes the 1SDA054150R1 particularly suitable for three-phase distribution systems where high prospective short-circuit currents require robust and reliable interruption.

Key Advantages

  • High-performance ABB SACE Tmax T4V moulded case circuit breaker.
  • 320 A rated current for substantial industrial distribution loads.
  • PR221DS-I electronic trip unit provides overload and instantaneous short-circuit protection.
  • V short-circuit performance level for demanding electrical distribution systems.
  • Three-pole fixed configuration for three-phase power distribution.
  • Front-terminal construction supports straightforward switchboard integration.

Key Features

  • ABB SACE Tmax T4V 320 series.
  • 320 A rated current.
  • PR221DS-I solid-state electronic release.
  • Long-time overload protection.
  • Instantaneous short-circuit protection.
  • Three-pole circuit breaker configuration.
  • Fixed mounting construction.
  • Front terminals for the main circuit connections.
  • V short-circuit performance level.

Reliable Circuit Protection for Industrial Power Distribution

Moulded case circuit breakers such as the ABB T4V 320 protect low-voltage electrical systems by detecting and interrupting excessive current caused by overload and short-circuit conditions. The PR221DS-I electronic release combines long-time overload protection with instantaneous short-circuit protection to help protect distribution conductors and connected electrical equipment.

The T4V performance level is intended for demanding installations requiring high fault-current interruption capability. Combined with its compact Tmax T4 construction, fixed three-pole arrangement and front terminals, the 1SDA054150R1 provides an effective protection solution for industrial switchboards, distribution panels and other three-phase low-voltage power systems.

Typical Applications

  • Industrial low-voltage power distribution systems.
  • Main and feeder protection in electrical switchboards.
  • Three-phase distribution panels.
  • Manufacturing and process plant electrical systems.
  • Commercial and infrastructure power distribution.
  • Installations requiring high short-circuit interruption performance.

Technical Specifications

Series SACE Tmax T4
ABB order code 1SDA054150R1
Product group 310511-T-Max T4 - T8
Product type Moulded case circuit breaker (MCCB)
Frame T4V 320
Rated current 320 A
Number of poles 3
Trip unit PR221DS-I solid-state electronic release
Protection functions Long-time overload and instantaneous short-circuit protection
Mounting Fixed
Terminal arrangement Front terminals
Short-circuit performance level V

Frequently Asked Questions

What is the ABB 1SDA054150R1 used for?

The ABB 1SDA054150R1 is a three-pole moulded case circuit breaker designed to protect low-voltage power distribution circuits against overload and short-circuit conditions.

What is the rated current of the ABB 1SDA054150R1?

The T4V 320 circuit breaker is equipped with a 320 A PR221DS-I electronic trip unit.

What trip unit does the ABB 1SDA054150R1 use?

It uses the ABB PR221DS-I solid-state electronic trip unit for dependable overcurrent protection.

What protection functions does the PR221DS-I provide?

The PR221DS-I provides long-time overload and instantaneous short-circuit protection for the connected low-voltage distribution circuit.

How many poles does the ABB 1SDA054150R1 have?

The 1SDA054150R1 is a three-pole circuit breaker intended for three-phase low-voltage power distribution systems.

How is the ABB 1SDA054150R1 installed?

This model is a fixed circuit breaker with front terminals, making it suitable for permanent installation within electrical switchboards and distribution assemblies.

Trusted by Electrical Professionals Worldwide

ABB SACE Tmax moulded case circuit breakers are widely used in industrial and commercial power distribution systems to provide dependable overcurrent protection, high short-circuit performance and flexible integration into low-voltage switchboards and electrical installations.