Item Type: Commercial Garage Door Opener Model: TPB-2 Material: ABS+brass Purpose: Suitable for electrical equipment such as power distribution cabinets, CNC lathes, etc. Rated Current: 3A Working Voltage: 250VAC 3C Rated Voltage: AC600V(maximum) Number of Contacts: 2 Open and 2 closed Operation Mode: Self holding button Reset Method: Self reset Mechanical Life: 1 Million times Package List 1 x Commercial Garage Door Opener 11 Million Times Mechanical Life: Adopt elite manufacturing process, mechanical life is not less than 1 million times, electrical life is up to 1 million times 2Brass Conductive Parts: Made of good quality materials, brass conductive parts can improve conductivity, use more efficiently 3Clear And Complete Information Identification: Appearance of this push button is beautiful, information identification is clear and complete, and installation is convenient and quick 4Suitable For Electrical Equipment: Push button switch is suitable for electrical equipment such as power distribution cabinets, CNC lathes, etc. 52 Open And 2 Closed: The number of contacts is 2 open and 2 closed, self holding button operation mode with self reset method