Supply PowerMaster model "GJ" Industrial Duty Gear
Reduced Jackshaft type operator rated for use on Rolling Service
Doors, Rolling Grilles, and Counter Shutters.
Primary speed reduction shall be by means of an
industrial gear box with bronze worm gear in an oil bath.
Motor shall be of the high starting torque, continuous
duty industrial type, protected from overload by a current
sensing or thermal type overload device. Motor controller
shall be a heavy duty, full voltage, across the line,
magnetic reversing contactor, that is mechanically and
electrically interlocked. Electrical components shall be
installed in a NEMA 1 enclosure integral to the operator.
A transformer shall be provided to reduce control voltage
to 24 VAC. Separate terminal strips shall be provided for
connection of power supply line and all control devices.
Operator shall be wired for an open/close/stop control