With high permeability core to operate takeoff device on standard automatic distilling heads. Fastened to head with special clamp. Furnished complete with clamp and wires to connect to automatic time switch. For operation at 120 volt, 50/60 Hz AC max. or 24 volts DC max. For intermittent service only; 30 sec. maximum ON, 50% max. duty cycle. Diameter of Core 12.5mm, Diameter of Coil 38mm, Height 32mm. For use with our 6671 series repeat cycle timer.