Covers are cast copper-free aluminum alloy. Push button operator bodies are copper-free aluminum. Operating shaft in push buttons is stainless steel. Standard size push buttons have 1-3/8" overall diameter. Contact blocks are rated heavy duty, 600 VAC max
Copper free cast aluminum alloy.
Ground flange joint between bolted cover and box provide required flame path.
Push button, selector switches and pilot light operator bodies are copper-free aluminum.
Operating shaft in both push buttons and selector switches are stainless steel.