What is NOT a characteristic of magnetic breakers?

Magnetic breakers are primarily designed to respond to overcurrent conditions by utilizing magnetic fields to trip the circuit quickly, which adds to their high-speed characteristics. One key aspect of magnetic breakers is their sensitivity to low overcurrent; they can react within milliseconds to protect electrical circuits from small overloads.

Regarding operating temperatures, magnetic breakers typically operate effectively within a specific temperature range, and while their performance can vary with temperature changes, describing them as having "higher operating temperatures" is not a characteristic. In fact, many circuit breakers, including magnetic breakers, are designed to operate within a standard temperature range, which helps prevent false tripping or inadequate operation.

The precision in operation is also crucial, as magnetic breakers must reliably trip under certain overcurrent conditions, ensuring the protection of electrical systems. Therefore, identifying "higher operating temperatures" as an incorrect characteristic highlights that magnetic breakers ideally function within specified thermal limits, reflecting their effectiveness and reliability in protecting circuits.