A securing member for use in a switch assembly of a circuit breaker includes a support post and a fastener. Resistance R2 may be replaced by inductance L, and bipolar transistors may be replaced by other types such MOS transistors. The message data are written to a message storage 7. A rotor is connected to the second element, the rotor including a first and a second portion. The guide pins extend from a front movable clamp leg.