B Series toggle switches incorporate NKK’s award-winning Sliding Twin Crossbar contact mechanism to ensure unparalleled switching reliability and smooth positive detent action. Contact reliability is increased even further as a result of the series’ antistatic superstructure, which consists of a carbon-impregnated bushing. When configured with a support bracket, this prevents static discharge to the contacts. Static electricity from the operator’s touch travels from the actuator through the bushing and bracket directly to the PC board. With a case housing constructed of glass-reinforced polyamide, these toggle switches also feature process-sealed body construction that prevents contact contamination. Terminals are ultrasonically welded to lock out flux and other contaminants. An optional threaded 6mm diameter bushing for panel-seal mounting is also available and meets IP65 of IEC60529 specifications. Engineers can specify from several different mounting options, including straight PC in bracketed and unbracketed models, vertical and right-angle mounts.

The B Series is available in both single- and double-pole models with a comprehensive offering of eleven circuits in momentary and maintained actions. The B Series is the smallest switch in the marketplace to offer a locking lever actuator. Actuators can be specified in a variety of styles, lengths and colors. Other actuator options include standard bat, antistatic lever, flatted lever, colored sleeves and snap-on paddles. The body of the B Series, including bushing, is a compact 0.515” in height. Including a 0.106” long bushing, the single pole version is 0.268” wide and the double pole is 0.346” wide. Terminal spacing is 0.100” x 0.100” and conforms to standard PC board grids for easier board layout. These toggle switches are rated 0.4 VA maximum at 28 V AC/DC maximum. The mechanical life is rated at 100,000 operations minimum for maintained circuits and 50,000 operations minimum for momentary circuits. Electrical life is rated at 50,000 operations minimum.