DHJ – Industrial-Duty Hoist/Jackshaft Operator with Internal Door Lock Sensor
Door Lock Hoist/Jackshaft (DHJ) style commercial door operators are ideal for shopping mall applications with heavier rolling doors and grilles. The operators provide a floor level chain hoist to ease manual operation and include a door lock sensor to prevent damage. Contact us about this product
Dual Voltage Connections increase flexibility by enabling the installer to select the required voltage within phase, to meet job-site requirements.
Single-Phase: 115V and 230V, 3-Phase: 208V, 230V and 460V, 575V is a discrete model without field-selectable voltage.
Internal Door Lock Sensor eliminates jamming and damage to door and operator if door is opened when locked.
Control Function Selector Dial enables easy selection and programming of (7) wiring types, from constant pressure to close, to specialized Timer-to-Close functionality to meet end-user needs.
Continuous-Duty High-Starting Torque Motor performs in demanding industrial overhead door applications.
Motor Removable without Affecting Limit Switch Settings saves time and money for maintenance.
Adjustable Friction Clutch helps to protect door and operator from damage should the door meet an obstruction.
Mid-Stop enables partial opening of door to a preprogrammed position for energy savings, time savings and convenience.
Maximum Run Timer reverses or stops door if closing time exceeds expected time-frame to limit damage to door and operator.
Delay-On-Reverse Circuit prevents abrupt reversal of door, reducing wear on the door and operator system.
3-Button Control Station with Maintenance Alert System (MAS) provides open/close/stop functions and notification when routine maintenance is required.
Continuous-duty high-starting torque motor with instant reverse and overload protection. Available in 1/2 and 3/4 HP; single- or three-phase. Capacitor start on single-phase. Removable without affecting limit switch settings.
Operators are factory preset to C2 wiring, providing momentary contact to open and stop, with constant contact to close.