1SDA054573R1 ABB T4S 320 Breaking Part 4p FF Moulded Case Circuit Breaker

1SDA054573R1 ABB T4S 320 Breaking Part 4p FF Moulded Case Circuit Breaker

ABB T4S 320 Breaking Part 4p FF moulded case circuit breaker component with 320 A rated current and fixed front terminals for Tmax T4 protection assemblies.

SKU: 1SDA054573R1MPN: 1SDA054573R1
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List Price £1,435.94 ex VAT
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Why Choose the ABB T4S 320 Breaking Part 4p FF Moulded Case Circuit Breaker?

The ABB T4S 320 Breaking Part 4p FF is a high-performance moulded case circuit breaker (MCCB) breaking unit designed for reliable switching and protection applications within low-voltage electrical distribution systems. As part of the proven ABB SACE Tmax T4 series, this four-pole breaking part delivers dependable interruption capability and robust construction for industrial and commercial switchgear assemblies.

Designed for integration into compatible ABB Tmax T4 circuit breaker configurations, the T4S 320 breaking part combines compact dimensions with reliable ABB switching technology. Its fixed front terminal arrangement enables straightforward installation while maintaining the performance and durability expected from the Tmax platform.

With a rated uninterrupted current of 320 A, four-pole configuration and S breaking capacity class, the ABB T4S 320 Breaking Part is suitable for applications requiring reliable circuit isolation, switching and fault interruption in modern electrical distribution systems.

Key Advantages

  • 320 A rated current capability for industrial and commercial distribution applications.
  • ABB Tmax T4S series construction for dependable circuit breaker performance.
  • Four-pole (4P) configuration for systems requiring neutral pole switching.
  • Fixed front terminals simplify integration into switchboards and assemblies.
  • High mechanical strength and reliable fault interruption capability.
  • Compact design helps optimise electrical panel space.

Key Features

  • ABB SACE Tmax T4S 320 breaking part.
  • Four-pole (4P) configuration.
  • Fixed front terminal connection (FF).
  • Rated uninterrupted current: 320 A.
  • Rated operational voltage up to 690 V AC.
  • Rated insulation voltage: 1000 V.
  • Rated impulse withstand voltage: 8 kV.
  • Designed for ABB Tmax T4 moulded case circuit breaker assemblies.
  • Suitable for industrial low-voltage protection systems.

Reliable Switching Performance for Industrial Power Systems

The ABB Tmax T4S 320 breaking part provides the essential switching and interruption functions required within complete MCCB assemblies. Its robust design supports reliable operation during normal switching conditions and electrical fault events.

The Tmax T4 platform combines compact construction, high performance and proven ABB engineering, making it suitable for professional switchgear manufacturers, maintenance applications and industrial distribution projects where dependable circuit protection is required.

Typical Applications

  • Industrial switchboards and distribution panels.
  • Low-voltage electrical distribution systems.
  • Motor and machinery protection assemblies.
  • Commercial power distribution equipment.
  • Industrial automation control panels.
  • Energy management and infrastructure installations.

Technical Specifications

Series SACE Tmax T4
Order code 1SDA054573R1
Product type Moulded case circuit breaker breaking part
Suitable for ABB Tmax T4 circuit breaker systems
Rated uninterrupted current (Iu) 320 A
Number of poles 4 poles
Terminal connection Fixed front terminals
Rated operational voltage (Ue) 690 V AC
Rated insulation voltage (Ui) 1000 V
Rated impulse withstand voltage (Uimp) 8 kV
Breaking capacity class S
Mechanical durability Up to 20,000 operations
Electrical durability Up to 6,000 operations
Dimensions (H × W × D) approx. 162 × 140 × 103.5 mm
Weight approx. 3.0 kg

Frequently Asked Questions

What is the ABB T4S 320 Breaking Part 4p FF used for?

This ABB Tmax T4 component is a breaking unit used within compatible moulded case circuit breaker assemblies for low-voltage protection and switching applications.

What is the rated current of the ABB T4S 320 breaking part?

The ABB T4S 320 breaking part has a rated uninterrupted current of 320 A.

How many poles does this ABB breaking part have?

The unit has a four-pole (4P) configuration.

What terminal connection type is provided?

The ABB T4S 320 Breaking Part is supplied with fixed front terminals.

Which ABB product family is this part designed for?

This breaking part is designed for use with the ABB Tmax T4 moulded case circuit breaker family.

Trusted by Industrial Engineers Worldwide

ABB Tmax moulded case circuit breakers and components are widely selected by electrical engineers and switchgear specialists for reliable protection, efficient installation and long-term performance in industrial power systems.