Thermomagnetic device circuit breakers
Thermomagnetic circuit breakers feature a thermal tripping mechanism as well as a magnetic tripping mechanism.
This means that the protective devices trip faster in the event of a short circuit compared to thermal fuses.
With their various characteristic curves, the device circuit breakers also satisfy the requirements for long cable paths. They, therefore, provide ideal protection against overload and short-circuit currents.
Function and design
Thermomagnetic device circuit breakers are tripped both thermally and magnetically. The two systems, bimetal and solenoid, operate independently of one another.
This means that in the event of a short circuit, the thermomagnetic device circuit breakers trip more quickly than thermal device circuit breakers.
As a rule, in the event of a short circuit, the tripping mechanism is actuated within 3 to 5 ms.
Use device circuit breakers with optimized SFB (Selective Fuse Breaking) characteristic curve to implement longer cable paths in your system. In conjunction with QUINT POWER power supplies from Phoenix Contact, you can achieve maximum protection for your cables and devices. The device circuit breakers can be switched on again at any time.
Our thermomagnetic device circuit breakers are available in a one-piece and a pluggable design. Choose between screw connection and Push-in connection technology.
Thermomagnetic device circuit breakers are primarily used in information and communication technology as well as in process control.
Due to the various tripping characteristics and precise nominal current levels, the device circuit breakers can be used in a wide range of applications.
For example, they are ideal for protecting programmable logic controllers, valves, motors, and frequency converters.
