NKK Switches Bushing Mount Miniature Pushbutton MB2181SS1W01-BF

The MB2000 series is a line of miniature pushbuttons with a stainless steel frame and diallyl phthalate resin case rated UL94V-0. It offers silver or gold-plated contacts with electrical ratings of 6A at 125V AC, 3A at 250V AC, or 0.4VA maximum at 28V AC/DC. The device has a 3.35mm threaded bushing with keyway, solder lug terminals, and a 4-pole DPDT ON-(ON) circuit configuration. It operates from -30°C to +85°C and meets IP67 sealing with B3 or D3 bushings. Mechanical life is rated at 100,000 operations for non-splashproof models. The case provides 1,500V AC dielectric strength between contacts and case. The plunger travel is 0.175 inches (4.45mm) for snap-on caps, with an operating force of 25.54N for momentary action. Epoxy-sealed terminals and over-center actuator design enhance reliability and environmental resistance.