Contacts of TP series motive switch are made of silver alloy, slow motioning double-break contact structure of the bridge, for which can directly control a small three-phase motor, widely applied in industrial machineries and equipment. Motive Switch may directly cut off single motor which tolerate AC 50Hz or 60Hz, voltage up to 380V rated current up to 15A power system.

The protection structure is adopted in TP Motive switch series, insulated cover is shielded by thermosetting polymer, fixed silver-coated contacts and firmly screwed rivets are fixed on the switch base. Moving contacts are composed by rivets and silver-contacts copper-based alloy into bridge-shaped moving contacts. By the spring action to complete the closure and separation movements from start and stop. Operation buttons, supporting components and three dynamic and fixed contacts are rigidly mounted on insulated base, lead connections are well-sealed by rubber.