Overview of device circuit breakers

Device circuit breakers

Device circuit breakers protect your equipment against overload and short-circuit currents and selectively shut down just the affected circuit in the event of a fault. To provide the ideal protection, our circuit breakers use various technologies: electronic, thermomagnetic, and thermal. Optimize your production process and minimize downtimes by using our overcurrent protection.

Product Family

Various device circuit breakers

Electronic and thermomagnetic device circuit breakers

Various circuit breaker technologies

Based on their function, device circuit breakers can be divided into the following groups:

  • Thermal device circuit breakers for overload protection
  • Thermomagnetic circuit breakers for overload and short-circuit protection
  • Electronic circuit breakers for protection in the event of overload, short circuit, cable attenuation, and high input capacitance
PTCB - the narrowest single-channel circuit breaker

PTCB - the narrowest single-channel circuit breaker measuring just 6 mm

Miniature circuit breakers or device circuit breakers

Here is a brief explanation of the difference between miniature circuit breakers and device circuit breakers:

Miniature circuit breakers protect power distribution cables in buildings or systems. To protect the power supply line against overload, they safely shut down only in the event of a short circuit in the end device.

In contrast, device circuit breakers are the effective protection stage for end devices and protect against short circuit and overload. They can be optimally adapted to consumers. For this reason, their nominal currents start at less than 1 A and they are subdivided into small current increments. If you protect individual consumers or small function groups individually, unaffected system parts can continue operating in the event of an error, insofar as the overall process allows this.