Image is Representational - See Manufacturer Specs | DSD Cover And Device Subassemblies - Front Operated - 600VAC - Heavy Duty - 1 Universal Circuit - Mushroom - The DSD918-S769-EM-SP is a fornt opperated heavy duty pushbutton station, rated for 600VAC. It has one maintained contact mushroom head with lockout and guard. Normal position is 1 circuit, universal.