Woods 120 Volt /40 Amp indoor 24-hour SPST mechanical time switch with metal box is ideal for water heaters, spas, pools & fountains, commercial lighting & signs, heating & air conditioning and other heavy-duty applications. Mounted in a metal indoor enclosure it is rated for up to 2HP (24FLA), 120-volts/60Hz, SPST, 40A general use, 40A Tungsten, 20A Ballast, 1000 VA pilot duty. It features 1/2 & 3/4-inch knockouts; industrial-grade lockable metal box; manual override switch so you never lose pins; and up to 24 on/off repeat settings per day to help save on energy costs. It is CSA Listed in Canada and US.