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1SDA054572R1 ABB T4N 320 Breaking Part 4p F F
ABB 1SDA054572R1 is a T4N 320 four-pole fixed breaking unit with front terminals, a 320 A rated uninterrupted current and 36 kA ultimate breaking capacity at 415 V AC for compatible SACE Tmax T4 circuit breaker assemblies.
£865.50
Why Choose the ABB T4N 320 Breaking Part 4p F F?
The ABB T4N 320 Breaking Part 4p F F, order code 1SDA054572R1, is a four-pole breaking unit from the ABB SACE Tmax T moulded case circuit breaker range. Built on the T4N 320 platform, it provides the principal switching and current-carrying section for compatible Tmax T4 circuit breaker configurations.
This breaking part has a rated uninterrupted current of 320 A at 40 °C and an ultimate short-circuit breaking capacity of 36 kA at 415 V AC. It is supplied in a fixed four-pole configuration with front terminals, providing a practical foundation for three-phase systems where switching of the neutral conductor is also required.
The T4N designation identifies ABB's N breaking-performance class within the Tmax T4 family. As the 1SDA054572R1 is supplied as a breaking part rather than a complete circuit breaker with a protection release, it is intended to be combined with a compatible ABB Tmax T4 trip unit and the accessories required for the finished protection assembly.
Key Advantages
- Genuine ABB SACE Tmax T4N 320 breaking unit.
- 320 A rated uninterrupted current at 40 °C.
- Four-pole configuration for three-phase systems with neutral switching.
- 36 kA ultimate breaking capacity at 415 V AC.
- ABB N breaking-performance class.
- Fixed-mounted construction for switchboard installation.
- Front terminals provide accessible main-circuit connections.
- Designed for compatible ABB Tmax T4 protection releases and accessories.
Key Features
- ABB SACE Tmax T series.
- T4N 320 frame.
- 320 A rated uninterrupted current.
- Four-pole breaking part.
- Fixed execution.
- Front-terminal configuration.
- N short-circuit performance level.
- 36 kA Icu at 415 V AC.
- Designed as the breaking section of a compatible Tmax T4 MCCB assembly.
- Modular construction supports selection of a suitable ABB protection release.
Modular ABB Tmax T4 Breaking Unit
The breaking unit forms the principal current-carrying, switching and fault-interruption section of a modular moulded case circuit breaker. The T4N 320 version combines a 320 A current rating with 36 kA ultimate breaking capacity at 415 V AC, making it suitable for a broad range of industrial and commercial distribution applications.
Its four-pole construction enables all three phase conductors and the neutral pole to be incorporated into the breaker assembly. ABB's modular Tmax T architecture allows the breaking part to be combined with the appropriate compatible protection release and accessories to create a circuit breaker matched to the electrical installation.
Typical Applications
- ABB SACE Tmax T4 circuit breaker assemblies.
- Four-pole industrial power distribution systems.
- Three-phase systems requiring neutral switching.
- Industrial switchboards and distribution panels.
- Machinery and process electrical systems.
- OEM electrical distribution and control equipment.
Technical Specifications
| Series | SACE Tmax T |
|---|---|
| ABB order code | 1SDA054572R1 |
| Product type | Circuit breaker breaking unit / breaking part |
| Frame | T4N 320 |
| Performance level | N |
| Rated uninterrupted current (Iu) | 320 A at 40 °C |
| Number of poles | 4 |
| Rated ultimate short-circuit breaking capacity (Icu) at 415 V AC | 36 kA |
| Installation | Fixed |
| Terminal arrangement | Front terminals |
| Compatible product family | ABB SACE Tmax T4 |
| Weight | approx. 3.5 kg |
| Country of origin | Italy |
| GTIN / EAN | 8015644556709 |
Frequently Asked Questions
What is the ABB 1SDA054572R1?
The ABB 1SDA054572R1 is a T4N 320 four-pole fixed breaking unit with front terminals for compatible ABB SACE Tmax T4 moulded case circuit breaker configurations.
Is the ABB 1SDA054572R1 a complete circuit breaker?
No. It is supplied as a breaking part and is designed to be combined with the appropriate compatible ABB Tmax T4 protection release and accessories for the required circuit breaker configuration.
What is the current rating of the ABB T4N 320 breaking part?
The breaking unit has a rated uninterrupted current of 320 A at 40 °C.
What is the breaking capacity of the ABB T4N 320 1SDA054572R1?
The T4N 320 breaking unit has an ultimate short-circuit breaking capacity of 36 kA at 415 V AC.
How is the ABB T4N 320 breaking part configured?
The 1SDA054572R1 is a fixed four-pole breaking unit with front terminals, making it suitable for compatible three-phase Tmax T4 assemblies that require a fourth pole.
Trusted ABB Circuit Breaker Components
ABB SACE Tmax breaking units provide a robust modular foundation for industrial moulded case circuit breaker assemblies, combining dependable short-circuit interruption with flexible selection of compatible protection releases and accessories.
