Sectional Door Operator

MODEL "MT"

mt

Supply Powermaster Model “MT” Drawbar Operator(s)

Rated 1/2 hp, 115 volts, single phase, for use on standard lift sectional doors. motor shall be instantly reversible, permanent split capacitor type, protected from overload by a current sensing or thermal type overload device. Primary speed reduction shall be by means of an industrial duty v belt. Secondary reduction shall be by heavy duty chain and sprockets. an adjustable torque limiting clutch shall be provided to prevent overloading of operator. all shafts shall be a minimum of ¾” diameter and shall be supported by bronze bushings. a disconnect arm shall be provided for manual operation of door.

Control of the operator shall be by a class ii, 24 volt powered circuit, consisting of solid-state control board, transformer and limit switches.

All components of control system shall be ul recognized. electrical components shall be installed in a nema 1 enclosure.

A transformer shall be provided to reduce control voltage to 24 vac maximum. terminal strips shall be provided for connection of power supply line and all control devices. operator shall be wired for connection of a radio control, push button station and an obstruction sensing device without additional wiring modifications.

Control circuit shall provide instant reverse motor wiring. positive chain driven, rotary type limit switches shall be provided to limit full open and close travel of door. limit switches shall not be affected by removal of motor or by manual operation of door.

MODEL "GT"

gt

Supply Powermaster Model “GT” Drawbar Operator(s)

Rated ____ Hp, ____ Volts, ____ Phase, for use on standard lift sectional doors. 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.

MODEL "APT"

apt
Supply PowerMaster Model “APT” Drawbar Operator(s)
 
RATED 1/2 HP, 115 VOLTS, 1 PHASE, for use on Standard Lift Sectional Doors where high cycles and quiet operation are required.
Primary reduction shall be by heavy duty V-Belt Drive.
Secondary reduction shall be a chain and sprocket arrangement. Motor shall be 115 VAC Resilient Mount PSC, continuous duty industrial type protected from overload by a current sensing or thermal type overload device.
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 to accept control stations, safety devices and other access control equipment.
Control circuit shall provide instant reverse motor wiring. Positive chain driven, rotary type limit switches shall be provided to limit full open and close travel of door. Limit switch adjustment shall not be affected by removal of motor or by manual operation of door.
 
An adjustable torque limiting clutch shall be provided to prevent overloading of the operator. A disconnect arm for manual operation of the door shall be provided in case of power failure. The final reduction and drive shall be heavy duty roller chain and sprockets. The drive shaft shall be supported by oilite bearings and be a minimum of 3/4 inch diameter.

MODEL "GSL"

gsl
Supply PowerMaster Model “GSL” Slide Door Operator(s)
 
RATED ____ HP, ____ VOLTS, ____ PHASE, for use on Sliding Doors. Primary speed reduction shall be by means of an industrial gear box with bronze worm gear in an oil bath.
Motor shall be continuous duty industrial type protected from overload by a current sensing or thermal type overload device.
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 station. Control circuit shall provide instant reverse motor wiring on 1Ø operators. Positive chain driven, rotary type limit switches shall be provided to limit full open and close travel of door. Limit switch adjustment shall not be affected by removal of motor or by manual operation of door.
 
An adjustable torque limiting clutch shall be provided to prevent overloading of the operator. A spring set solenoid released brake, and a disconnect arm for manual operation of the door shall be provided in case of power failure. The final reduction and drive shall be heavy duty # 41 roller chain and sprockets. The drive shaft shall be supported by pillow block bearings and be a minimum of _ In diameter.

MODEL "SL"

sl
Supply PowerMaster Model “SL” Slide Door Operator(s)
 
RATED ____ HP, ____ VOLTS, ____ PHASE, for use on Sliding Doors. Primary reduction shall be by heavy duty V-Belt Drive. Secondary reduction shall be a chain and sprocket arrangement. Motor shall be continuous duty industrial type protected from overload by a current sensing or thermal type overload device.
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 station. Control circuit shall provide instant reverse motor wiring on 1Ø operators. Positive chain driven, rotary type limit switches shall be provided to limit full open and close travel of door. Limit switch adjustment shall not be affected by removal of motor or by manual operation of door.
 
An adjustable torque limiting clutch shall be provided to prevent overloading of the operator. A spring set solenoid released brake, and a disconnect arm for manual operation of the door shall be provided in case of power failure. The final reduction and drive shall be heavy duty # 41 roller chain and sprockets. The drive shaft shall be supported by pillow block bearings and be a minimum of _ In diameter.
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