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1SDA054260R1 ABB T4V250 TMA 250-2500 250 A 4-Pole MCCB
ABB 1SDA054260R1 SACE Tmax T4V250 fixed four-pole 250 A moulded case circuit breaker with TMA thermomagnetic trip unit, 1,250–2,500 A instantaneous magnetic protection and 200 kA breaking capacity at 415 V AC.
£2,716.16
Why Choose the ABB T4V250 TMA 250-2500 1SDA054260R1 Circuit Breaker?
The ABB 1SDA054260R1 is a high-performance SACE Tmax T4V 250 moulded case circuit breaker (MCCB) designed for reliable protection and isolation of low-voltage electrical distribution systems. Configured as a fixed four-pole breaker with front terminals, it combines a 250 A rated current with ABB's TMA thermomagnetic trip unit for dependable overload and short-circuit protection.
Part of the proven ABB SACE Tmax T4 series, the T4V250 is engineered for demanding industrial and commercial power distribution applications where very high short-circuit interruption capability is required. Its TMA release combines thermal overload protection with adjustable instantaneous magnetic protection, helping safeguard cables, equipment and distribution circuits against damaging overcurrents.
The TMA release is rated at 250 A, with instantaneous magnetic protection adjustable from 1,250–2,500 A. The four-pole version uses a 50% rated neutral, while the T4V performance level provides an ultimate short-circuit breaking capacity of 200 kA at 415 V AC, making the 1SDA054260R1 suitable for demanding distribution systems with high prospective fault currents.
Key Advantages
- High-performance ABB SACE Tmax T4V moulded case circuit breaker.
- 250 A rated current for industrial and commercial power distribution.
- Four-pole configuration for multipole low-voltage distribution systems.
- TMA thermomagnetic trip unit provides overload and short-circuit protection.
- 1,250–2,500 A instantaneous magnetic adjustment range.
- 200 kA ultimate breaking capacity at 415 V AC.
- Fixed mounting with front terminals for straightforward switchboard integration.
Key Features
- ABB SACE Tmax T4V 250 circuit breaker platform.
- 250 A rated current.
- 4-pole construction.
- 50% rated neutral.
- TMA thermomagnetic release.
- Thermal protection against sustained overload conditions.
- Adjustable instantaneous magnetic protection from 1,250–2,500 A.
- 200 kA Icu at 415 V AC.
- Fixed circuit breaker configuration with front terminals.
Reliable Circuit Protection for Power Distribution
Moulded case circuit breakers such as the ABB SACE Tmax T4V protect electrical distribution circuits against damaging overcurrents while also providing a convenient means of circuit isolation. The T4V performance level combines compact construction with very high short-circuit interruption capability, making it suitable for demanding industrial and commercial low-voltage distribution applications.
The TMA thermomagnetic trip unit provides complementary overload and short-circuit protection. Its thermal element responds to sustained overload currents that could overheat cables and connected equipment, while the adjustable magnetic element provides rapid tripping during severe short-circuit conditions. The four-pole configuration also enables switching of the neutral conductor alongside the three phase conductors.
Typical Applications
- Industrial low-voltage distribution systems.
- Main and sub-distribution switchboards.
- Electrical control and distribution panels.
- Commercial building power distribution.
- Manufacturing and process installations.
- Machinery and plant electrical distribution.
Technical Specifications
| Series | SACE Tmax T4 |
|---|---|
| ABB order code | 1SDA054260R1 |
| Product group | 310511-T-Max T4 - T8 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | T4 250 |
| Performance level | V |
| Rated current (In) | 250 A |
| Instantaneous magnetic protection adjustment (I3) | 1,250–2,500 A |
| Number of poles | 4 |
| Neutral rating | 50% of phase rating |
| Trip unit | TMA thermomagnetic release |
| Protection functions | Thermal overload and magnetic short-circuit protection |
| Ultimate breaking capacity (Icu) at 415 V AC | 200 kA |
| Mounting type | Fixed |
| Terminal type | Front terminals |
Frequently Asked Questions
What is the ABB 1SDA054260R1 used for?
The ABB 1SDA054260R1 is a 250 A moulded case circuit breaker designed to protect low-voltage electrical distribution circuits against overloads and short circuits.
What is the current rating of the ABB T4V250 1SDA054260R1?
The circuit breaker has a rated current of 250 A and is based on the ABB SACE Tmax T4V 250 frame.
What does TMA 250-2500 mean on this ABB circuit breaker?
The breaker uses a TMA thermomagnetic trip unit rated at 250 A, with instantaneous magnetic short-circuit protection adjustable from 1,250–2,500 A.
What is the breaking capacity of the ABB 1SDA054260R1?
The T4V performance level provides an ultimate short-circuit breaking capacity of 200 kA at 415 V AC, making it suitable for electrical systems with high prospective fault currents.
How is the ABB 1SDA054260R1 installed?
This model is a fixed four-pole circuit breaker with front terminals and a 50% rated neutral, designed for installation in electrical distribution panels and switchboards.
Trusted Protection from ABB
ABB SACE Tmax moulded case circuit breakers are engineered for dependable low-voltage power distribution, combining robust switching performance with proven thermomagnetic protection for industrial and commercial electrical systems.
