IDEC's HW and TW series are internationally rated 22 mm pushbuttons and pilot devices. The HW IEC style devices feature tamperproof mounting and construction, modular stackable contact blocks with IP20 finger safe screw terminals, and pure silver contacts with a self-cleaning action. Models include illuminated and non-illuminated pushbuttons, pilot lights, selector switches, key switches, mono-levers, pushbutton-selectors, and emergency stop (E-stop) switches.

Safety and ease of use were of paramount concern in the development of this line of switches, as evidenced by the simple mounting procedure, mechanically keyed safety lever lock (to prevent contact separation in heavy vibration applications), and the spring-loaded captive screw terminals, which make ring terminal wiring easier than ever before.

A traditional NEMA style switch, the TW series features a chrome plated octagonal locking ring that fastens from the front of the panel. Modular construction with snap-on contacts allows for great flexibility in configuration. Contacts are slow-make, double-break with a self-cleaning action that produces a wide switching range (from 5 mA to 10 A). Several screw terminal styles are available from the standard exposed full-size M3.5 screw to a finger safe (IP20) screw terminal (contacts are interchangeable with the HW series). Models include illuminated or non-illuminated pushbuttons, pilot lights, selectors, key switches, and E-stop switches.