The Schurter 4430.0721 is an Illuminated Pushbutton Switch. It is designed for use in the aerospace and electrical industries. The switch is double insulated, with a solder lug terminals, and it has 4 solder lugs which enable a two-pole connection. The contact rating is 6A 250VAC and 10A 125V AC. It has a momentary switching type, and an off on-momentary or off on-latching operation. It is available in two versions, 16mm diameter, and 19mm diameter. The external illumination is a small round green LED which remains lit when the switch is engaged and off when the switch is off. The body of the switch is a chrome plated zinc die cast body with a matte black knob. The switch meets VDE 801, IEC 108, UL1054, and CSA C22.2 requirements.