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 28.6mm, Diameter of Coil 76mm, Height 44mm. For use with our 6671 series repeat cycle timer.