A circuit breaker is an electromechanical switching device to switch the circuit of a machine or installation on or off. In case of a short circuit or overload the circuit breaker switches off automatically. This protects the installation and the load. The circuit breaker is also used for the safe separation of the installation from the mains for maintenance and changes or for switching machines with limited switching frequency under normal operating conditions. It is differentiated between circuit breakers for motor protection, so-called motor-protective circuit-breakers, with integrated overload monitoring and circuit breakers for starter combinations for mere short-circuit protection.
Circuit breakers are used in almost all fields of industry. For example:
The screw connection technology allows easy mounting and wiring of the circuit breakers.
Within the protection equipment category, Automation24 carries Siemens and Schneider Electric circuit breakers, which can be perfectly combined with contactors, overload relays, and soft starters, as part of the SIRIUS modular system. The components are available in both the S0 and S00 sizes. The operating current at AC -3 400 V varies from 0.2 A to 36 A depending on the breaker.
Depending on the version, the motor circuit breakers from Schneider Electric within the AC-3 400 V operating range cover a range from 0.16 to 32 A.
Siemens circuit breakers can be perfectly combined with contactors, overload relays, and soft starters, as part of the SIRIUS modular system.
The motor circuit breakers from Schneider Electric, on the other hand, can be perfectly complemented by the switching and protection equipment modules from the TeSys Deca series.
In addition to Siemens circuit breakers for motor protection, you can also purchase circuit breakers for starter combinations from this manufacturer.
Automation24 has also thought about compatible accessories for circuit breakers, offering auxiliary and connection modules for example, as well as surface mounting enclosures.
At Automation24 you will find a large selection of circuit breakers for motors and starters at very attractive prices.
Select the right circuit breaker for your application now and protect your motors and systems! Automation24 dispatches products that are in stock within 24 hours.
If you have questions, feel free to contact the experts at Automation24!