Thermal Magnetic Circuit Breaker Vs Electronic Trip. In some cases however basic overcurrent protection might not be enough. Thermal magnetic circuit breakers will meet the requirements of the electrical system design.
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Thermal magnetic units don t trip if the overload isn t dangerous but will trip instantly with heavy short circuit currents. Excessive electrical currents will heat the bimetallic strip enough to bend it towards a trip bar that turns the circuit off. Thermal magnetic circuit breakers will meet the requirements of the electrical system design.
Thermal magnetic electronic trip thermal magnetic molded case circuit breakers are the most common overcurrent protection devices.
Figure 2 tm thermal magnetic and ma magnetic tripping units. Thermal magnetic circuit breakers will meet the requirements of the electrical system design. Their primary functions are to provide a means to manually open a circuit and automatically open a circuit under overload or short circuit conditions. Electronic trip circuit breakers can prov ide the additional features needed in those cases.
