Up to twenty-five parts are assembled to produce the ULV switches. The Series provides a large tamper-resistant, anti-jamming pushbutton surface, a long travel of 3.2mm and an actuation force of 2.5 N (250 grams) for Single Pole and 3.5 N (350 grams) for Double Pole. The ULV Series offers momentary or latching operation and provides a long mechanical life expectancy of 1,000,000 cycles for momentary operation and 500,000 cycles for latching operation.