The 400BWMSP1R2BLKSM6QE is a Series 400B subminiature rocker switch designed for surface-mount applications with sealed construction to IP67 specifications. This switch features a contact rating of 3A @ 120VAC (1A @ 250VAC), a maximum contact resistance of 20 mO at 2-4 VDC 100 mA, and an insulation resistance of 1000 MO. The device operates reliably over a temperature range of -30°C to 85°C and is rated for 50,000 make-and-break cycles at full load, with a dielectric strength of 1,000 V RMS at sea level. The switch features a brass actuator with chrome plating and internal O-ring seal, housed in flame-retardant glass-filled nylon (UL94-V0), making it ideal for telecommunications, instrumentation, test equipment, networking, and computer peripheral applications where durability and environmental sealing are essential.