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1SDA054558R1 ABB T4S 250 Breaking Part 3P F F
ABB 1SDA054558R1 is a SACE Tmax T4S 250 fixed three-pole MCCB breaking part with front terminals, a 250 A rated uninterrupted current and 50 kA breaking capacity at 400/415 V AC.
£526.32
Why Choose the ABB T4S 250 Breaking Part 3P F F?
The ABB T4S 250 Breaking Part 3P F F, order code 1SDA054558R1, 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 capability required when combined with a compatible ABB T4 protection release.
This T4S 250 version has a rated uninterrupted current of 250 A and the ABB S short-circuit performance level. Its ultimate and service short-circuit breaking capacities are both 50 kA at 400/415 V AC, with rated operational voltage extending to 690 V AC and 750 V DC.
The 1SDA054558R1 features a fixed three-pole configuration with front terminals, making it suitable for integration into industrial switchboards and power-distribution assemblies. As a breaking part rather than a complete circuit breaker with trip release, it is intended to be combined with compatible ABB Tmax T4 components to create the required protection configuration.
Key Advantages
- Genuine ABB SACE Tmax T4S 250 breaking part.
- 250 A rated uninterrupted current.
- Three-pole fixed configuration for three-phase systems.
- 50 kA Icu and Ics at 400/415 V AC.
- Operational capability up to 690 V AC and 750 V DC.
- Front terminals for straightforward switchboard integration.
- Designed for combination with compatible ABB Tmax T4 protection releases and accessories.
Key Features
- ABB SACE Tmax T4 series.
- T4S 250 breaking unit.
- 250 A rated uninterrupted current (Iu).
- Three-pole configuration.
- S short-circuit performance level.
- 50 kA breaking capacity at 400/415 V AC.
- 1000 V rated insulation voltage.
- 8 kV rated impulse withstand voltage.
- Fixed circuit-breaker configuration.
- Front terminals.
- Electrical durability of 8000 operating cycles.
- Mechanical durability of 20000 operating cycles.
High-Performance Breaking Unit for ABB Tmax T4 Circuit Breaker Assemblies
The ABB T4S 250 breaking part forms the power 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 intended to be combined with the appropriate ABB Tmax T4 trip unit and associated components to provide the required overload and short-circuit protection characteristics.
Its S performance level provides substantial fault-interruption capability, including 50 kA at 400/415 V AC and 25 kA at 690 V AC. Together with a 250 A current rating, fixed construction and front terminals, the 1SDA054558R1 provides a robust foundation for configurable industrial distribution protection.
Typical Applications
- ABB SACE Tmax T4 circuit breaker assemblies.
- Industrial low-voltage distribution switchboards.
- 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 | 1SDA054558R1 |
| Product type | MCCB breaking part |
| Frame | T4 250 |
| Short-circuit performance level | S |
| Rated uninterrupted current (Iu) | 250 A |
| Number of poles | 3 |
| Rated operational voltage | up to 690 V AC / 750 V DC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Icu / Ics at 220–230 V AC | 85 kA / 85 kA |
| Icu / Ics at 380–415 V AC | 50 kA / 50 kA |
| Icu / Ics at 440 V AC | 40 kA / 40 kA |
| Icu / Ics at 500 V AC | 30 kA / 30 kA |
| Icu / Ics at 690 V AC | 25 kA / 25 kA |
| DC breaking capacity at 250 V DC | 50 kA with 2 poles in series |
| DC breaking capacity at 500 V DC | 36 kA with 2 poles in series |
| DC breaking capacity at 750 V DC | 25 kA with 3 poles in series |
| Mounting | Fixed |
| Terminal configuration | Front terminals |
| Electrical durability | 8000 cycles |
| Mechanical durability | 20000 cycles |
| Dimensions (W × H × D) | 105 × 162 × 103.5 mm |
| Net weight | 2.35 kg |
| EAN | 8015644555962 |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA054558R1?
The ABB 1SDA054558R1 is a T4S 250 fixed three-pole breaking part with front terminals for the SACE Tmax T4 moulded case circuit breaker platform.
Is the ABB 1SDA054558R1 a complete circuit breaker?
No. The 1SDA054558R1 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 T4S 250 breaking part?
The T4S 250 breaking unit has a rated uninterrupted current of 250 A.
What is the breaking capacity of the ABB T4S 250 at 400 V AC?
The T4S 250 has an ultimate short-circuit breaking capacity and service short-circuit breaking capacity of 50 kA at 400 V AC.
How many poles does the ABB 1SDA054558R1 have?
The breaking unit has a three-pole configuration and is designed for fixed installation with front terminals.
What voltages can the ABB T4S 250 breaking unit support?
The unit has a rated operational voltage of up to 690 V AC and 750 V DC, subject to the applicable pole arrangement and circuit-breaker 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 electrical distribution.
