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ABB 1SDA054727R1 TMA 500-5000 is a 500 A three-pole thermomagnetic release providing thermal overload and instantaneous magnetic short-circuit protection for compatible SACE Tmax T5 630 moulded-case circuit breakers.
£1,093.42
The ABB 1SDA054727R1 is a TMA 500-5000 three-pole thermomagnetic release designed for compatible ABB SACE Tmax T5 630 moulded-case circuit breakers. Rated at 500 A, it combines thermal overload protection with magnetic short-circuit protection for dependable industrial and commercial low-voltage distribution.
The TMA release uses two complementary protection principles. Its thermal element responds to sustained overload currents that could overheat conductors and equipment, while its magnetic element provides rapid tripping when severe short-circuit current is detected.
This TMA configuration has a rated current of 500 A and an instantaneous magnetic trip setting of 5000 A. Its three-pole configuration is suited to three-phase installations requiring conventional thermomagnetic protection on the ABB SACE Tmax T5 630 platform.
Thermomagnetic releases combine overload and short-circuit protection without relying on a microprocessor-based electronic trip unit. The thermal element responds according to the duration and magnitude of an overload, while the magnetic mechanism operates rapidly when current reaches the short-circuit trip level.
With its 500 A current rating and 5000 A instantaneous magnetic trip setting, the ABB TMA 500-5000 provides a practical protection solution for higher-current three-phase distribution circuits using a compatible Tmax T5 630 breaker.
| Product family | SACE Tmax T4–T8 |
|---|---|
| Release type | TMA thermomagnetic |
| ABB order code | 1SDA054727R1 |
| Product type | Thermomagnetic trip unit / release |
| Rated current (In) | 500 A |
| Instantaneous magnetic trip setting | 5000 A |
| Protection | Thermal overload and magnetic short-circuit |
| Number of poles | 3 |
| Compatible circuit breaker | ABB SACE Tmax T5 630 |
The ABB 1SDA054727R1 is a TMA 500-5000 three-pole thermomagnetic release designed for compatible ABB SACE Tmax T5 630 moulded-case circuit breakers.
The TMA 500-5000 has a rated current (In) of 500 A.
It combines thermal overload protection with magnetic short-circuit protection, protecting against sustained overcurrent and severe short-circuit faults.
The TMA 500-5000 has an instantaneous magnetic trip setting of 5000 A.
It is designed for compatible three-pole ABB SACE Tmax T5 630 moulded-case circuit breakers.
ABB SACE Tmax thermomagnetic releases combine established thermal and magnetic protection principles to provide dependable overload and short-circuit protection for demanding low-voltage distribution applications.
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