NKK Switches Bushing Mount Miniature Pushbutton MBN45SS4W01-BA

The MBN45SS4W01-BA is a miniature pushbutton switch in the Series M, designed for momentary or alternate action with silver contacts rated at 3A at 125V AC and 2A at 250V AC, or 0.4VA maximum at 28V AC/DC for logic-level applications. It features a .335" (8.5mm) threaded bushing with keyway, solder lug terminals, and a black .394" (10.0mm) diameter screw-on cap. The unit has a stainless steel frame, a diallyl phthalate resin case rated UL94V-0, and operates within a temperature range of -30°C to +85°C. Mechanical life is rated at 50,000 operations, with an electrical life of 25,000 operations for silver contacts. The installation torque is 0.7Nm for a single nut, and the bushing design provides splashproof protection compatible with IP67 when specified with D3 or B3 bushing codes. The actuator employs an over-center mechanism to reduce sparking and extend life in AC circuits.