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1SDA054559R1 ABB T4H 250 Breaking Part 3P F F
ABB 1SDA054559R1 is a SACE Tmax T4H 250 fixed three-pole MCCB breaking part with front terminals, a 250 A rated uninterrupted current and high-breaking-capacity performance for demanding power-distribution applications.
£636.56
Why Choose the ABB T4H 250 Breaking Part 3P F F?
The ABB T4H 250 Breaking Part 3P F F, order code 1SDA054559R1, is a fixed three-pole breaking unit for the ABB SACE Tmax T4 moulded case circuit breaker platform. Designed as the breaking part of a modular Tmax T4 circuit breaker assembly, it provides the current-carrying and fault-interruption section required when combined with a compatible ABB T4 protection release.
This T4H 250 version has a rated uninterrupted current of 250 A and uses ABB's H high-breaking-capacity performance level. The T4H platform provides a breaking capacity of up to 100 kA and supports rated operational voltages up to 690 V AC and 750 V DC, making it suitable for demanding industrial distribution systems with high prospective fault currents.
The 1SDA054559R1 features a fixed three-pole configuration with front terminals and compact T4 frame dimensions, supporting straightforward integration into switchboards and distribution assemblies. As a breaking part rather than a complete MCCB with a protection release, it is intended to be combined with compatible ABB Tmax T4 trip units and accessories to create the required circuit-protection configuration.
Key Advantages
- Genuine ABB SACE Tmax T4H 250 breaking part.
- 250 A rated uninterrupted current.
- H high-breaking-capacity performance level for demanding distribution systems.
- Breaking capacity up to 100 kA.
- Three-pole fixed configuration for three-phase applications.
- Rated operational voltage up to 690 V AC and 750 V DC.
- Front terminals for convenient switchboard integration.
- Designed for combination with compatible ABB Tmax T4 protection releases and accessories.
Key Features
- ABB SACE Tmax T4 series.
- T4H 250 breaking unit.
- 250 A rated uninterrupted current (Iu).
- Three-pole configuration.
- H high-breaking-capacity performance level.
- 1000 V rated insulation voltage.
- 8 kV rated impulse withstand voltage.
- Fixed circuit-breaker configuration.
- Front terminals.
- Compact 105 × 162 × 103.5 mm T4 frame dimensions.
- Designed for compatible ABB Tmax T4 electronic or thermomagnetic protection releases.
High-Breaking-Capacity Unit for ABB Tmax T4 Circuit Breaker Assemblies
The ABB T4H 250 breaking part forms the switching and fault-interruption section of a compatible Tmax T4 circuit breaker assembly. Unlike a complete MCCB supplied with a protection release, this component is designed to be combined with the appropriate ABB Tmax T4 trip unit and associated components, allowing the finished circuit breaker to be configured for the required overload and short-circuit protection characteristics.
The H performance level provides enhanced fault-interruption capability for installations where prospective short-circuit currents exceed the requirements of standard breaking-capacity versions. Combined with its 250 A current rating, fixed three-pole construction and front terminals, the 1SDA054559R1 provides a robust foundation for industrial power-distribution protection.
Typical Applications
- ABB SACE Tmax T4 circuit breaker assemblies.
- Industrial low-voltage distribution switchboards.
- Electrical systems with high prospective short-circuit currents.
- Main and sub-distribution panels.
- Manufacturing and process plant electrical systems.
- Commercial and infrastructure power distribution.
- Replacement or configuration of compatible Tmax T4 MCCB assemblies.
Technical Specifications
| Series | SACE Tmax T4 |
|---|---|
| Order code | 1SDA054559R1 |
| EAN | 8015644555979 |
| Product type | MCCB breaking part |
| Frame | T4 250 |
| Short-circuit performance level | H |
| Rated uninterrupted current (Iu) | 250 A |
| Number of poles | 3 |
| Maximum breaking capacity | 100 kA |
| Rated operational voltage | up to 690 V AC / 750 V DC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Mounting | Fixed |
| Terminal configuration | Front terminals |
| Dimensions (W × H × D) | 105 × 162 × 103.5 mm |
| Operating mechanism | Lever |
| Standards | IEC 60947 |
Frequently Asked Questions
What is the ABB 1SDA054559R1?
The ABB 1SDA054559R1 is a T4H 250 fixed three-pole breaking part with front terminals for the SACE Tmax T4 moulded case circuit breaker platform.
Is the ABB 1SDA054559R1 a complete circuit breaker?
No. The 1SDA054559R1 is the breaking part of a Tmax T4 circuit breaker assembly and is intended to be combined with a compatible ABB protection release and other required components.
What is the current rating of the ABB T4H 250 breaking part?
The T4H 250 breaking unit has a rated uninterrupted current of 250 A.
What is the breaking capacity of the ABB T4H 250?
The T4H 250 is the H high-breaking-capacity version of the Tmax T4 platform and provides a breaking capacity of up to 100 kA, depending on the operating voltage and circuit configuration.
How many poles does the ABB 1SDA054559R1 have?
The breaking unit has a three-pole configuration and is designed for fixed installation with front terminals.
What voltages can the ABB T4H 250 breaking unit support?
The T4H 250 platform supports rated operational voltages up to 690 V AC and 750 V DC, subject to the applicable circuit and pole configuration.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax circuit breaker components are used in industrial and commercial power-distribution systems worldwide, providing configurable, robust and dependable solutions for switchboard protection and demanding electrical distribution applications.
