(under subclass 2) Subject matter wherein the structure includes at least one means whereby the device is protected from physical or electrical damage; such as, burnout, contact burning or pitting, physical breakage or damage due to jar, overheating, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
157+, for switches with locking or holding structure to prevent or inhibit unwanted operation of the contacts from a first condition to a second condition.
193, for significant contact activating means with means for preventing vibration bounce or chatter.
SEE OR SEARCH CLASS
200, Electricity: Circuit Makers and Breakers,
166+, for nonmagnetic switches with protective means. 307, Electrical Transmission or Interconnection Systems,
134+, for electrical switching systems with operation facilitating or self-protective features.