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1SDA054253R1 ABB T4V 250 TMD 32-320 4-Pole MCCB
ABB 1SDA054253R1 is a T4V 250 fixed four-pole moulded case circuit breaker with a 32 A TMD thermal-magnetic release and 320 A magnetic short-circuit protection for demanding low-voltage power distribution systems.
£1,410.48
Why Choose the ABB 1SDA054253R1 T4V 250 Moulded Case Circuit Breaker?
The ABB 1SDA054253R1, designated T4V 250 TMD 32-320 4p F F, is a high-performance moulded case circuit breaker (MCCB) designed for reliable protection of low-voltage power distribution systems. Part of the ABB SACE Tmax T4 series, it combines a compact 250 A frame with a TMD thermal-magnetic release and the high short-circuit performance of the T4V platform.
This circuit breaker incorporates an ABB TMD thermal-magnetic release rated at 32 A, with magnetic short-circuit protection identified by the 32-320 designation. The thermal element provides overload protection, while the magnetic element provides rapid operation under severe short-circuit conditions, helping protect conductors and connected electrical equipment.
The T4V 250 is supplied as a fixed four-pole circuit breaker with front terminals. Its four-pole configuration enables switching across four conductors, while the V short-circuit performance level makes it particularly suitable for demanding distribution systems where high prospective fault currents must be safely interrupted.
Key Advantages
- High-performance ABB SACE Tmax T4V moulded case circuit breaker.
- 32 A TMD thermal-magnetic release provides overload and short-circuit protection.
- Magnetic protection rated at 320 A for rapid response to high fault currents.
- Four-pole configuration supports switching and protection across four conductors.
- Fixed mounting with front terminals supports straightforward switchboard integration.
- V short-circuit performance class is designed for demanding installations with high prospective fault currents.
Key Features
- ABB SACE Tmax T4V 250 series.
- 250 A rated uninterrupted current frame.
- 32 A rated TMD thermal-magnetic release.
- Thermal overload protection.
- 320 A magnetic short-circuit protection.
- Four-pole circuit breaker configuration.
- Fixed mounting construction.
- Front terminals for main circuit connections.
- V short-circuit performance level.
- Compact Tmax T4 construction for low-voltage switchboard applications.
Reliable Thermal-Magnetic Protection for Power Distribution
Thermal-magnetic moulded case circuit breakers such as the ABB T4V 250 combine two complementary protection principles. The thermal element responds to sustained overload currents that can cause excessive heating in conductors and equipment, while the magnetic element provides rapid interruption when a severe short-circuit current occurs.
For the 1SDA054253R1, the TMD release is rated at 32 A with 320 A magnetic short-circuit protection. Combined with the T4V platform, four-pole construction, fixed mounting and front terminals, this configuration provides a practical protection solution for demanding industrial and commercial low-voltage distribution systems.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and feeder protection in electrical switchboards.
- Three-phase four-wire distribution systems.
- Manufacturing and process plant electrical systems.
- Commercial building power distribution.
- Installations requiring high short-circuit interruption performance.
Technical Specifications
| Series | SACE Tmax T4 |
|---|---|
| ABB order code | 1SDA054253R1 |
| Product group | 310511-T-Max T4 - T8 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | T4V 250 |
| Rated uninterrupted current | 250 A |
| Rated current | 32 A |
| Trip unit | TMD thermal-magnetic release |
| Magnetic short-circuit protection | 320 A |
| Protection functions | Thermal overload and magnetic short-circuit protection |
| Number of poles | 4 |
| Mounting | Fixed |
| Terminal arrangement | Front terminals |
| Short-circuit performance level | V |
| Dimensions (H × W × D) | 205 × 140 × 103.5 mm |
| Product net weight | 3.05 kg |
| EAN | 8015644553500 |
Frequently Asked Questions
What is the ABB 1SDA054253R1 used for?
The ABB 1SDA054253R1 is a four-pole moulded case circuit breaker designed to protect low-voltage distribution circuits against overload and short-circuit conditions.
What is the rated current of the ABB 1SDA054253R1?
The circuit breaker is equipped with a 32 A TMD thermal-magnetic release within the T4V 250 frame.
What does TMD 32-320 mean on this ABB circuit breaker?
The designation identifies a 32 A TMD thermal-magnetic release with magnetic short-circuit protection rated at 320 A.
What type of trip unit does the ABB 1SDA054253R1 use?
It uses an ABB TMD thermal-magnetic trip unit, combining thermal overload protection with magnetic short-circuit protection.
How many poles does the ABB 1SDA054253R1 have?
The 1SDA054253R1 is a four-pole MCCB, providing switching and protection across four conductors in suitable low-voltage distribution systems.
How is the ABB 1SDA054253R1 installed?
This model has a fixed mounting configuration with front terminals, making it suitable for permanent integration into electrical switchboards and distribution assemblies.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax moulded case circuit breakers provide dependable overcurrent protection, robust short-circuit interruption and flexible integration for industrial and commercial low-voltage power distribution systems.
