Single-Heat Discs — Have two terminals for
single wattage on-off switch or thermostat.
Three-Heat Discs — Have three terminals that split the heater into 2 equal circuits. Center
terminal is common.
Easy Installation — Circular shape and use
of Mounts with Bolt or Studs simplifies use of
Half Sheath Units Have Reduced Thermal
Gradient to Heated Surface — Provides faster
Nest Disc in Ring heaters - to pack heat in small