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LJ8950W

LiftMaster Light Duty Commercial Jackshaft Op. for Rolling Doors

  • Ideal for smaller/lighter commercial doors with light duty cycle requirements
  • MyQ Technology Built-In Wi-Fi Real-Time Alerts
  • Smooth Start/Stop
  • Optional Accesories 827LM MyQ Remote LED light 485LM Battery Back-up 841LM Automatic Door Lock 480LMB Alternate Mounting Kit and LC-36A Light Curtain
  • Powerful Add-Ons 811LM and KPW5/KPW250
LJH-311-1/2-RH

Doorlec 1/2 HP 115V 1PH Jackshaft Operator Right Hand

  • CSA approved
  • Heavy duty industrial type control station open close stop 24V. control circuit
  • Universal mounting right or left
  • Floor level disconnect device electrical and mechanical
  • Emergency chain hoist operation on LJH model only
  • Colour code wiring diagrams
    • .......more details
Technical information
LJH-311-3/4

Doorlec 3/4HP 115V 1PH Jackshaft Operator

  • Nema 4/12 now included (11/2025)
Technical information
LJH-353-1/2

Doorlec 1/2 HP 575V 3PH Jackshaft Operator

  • Heavy duty industrial type control station open close stop 24V. control circuit
  • Universal mounting right or left
  • Floor level disconnect device electrical and mechanical
  • Emergency chain hoist operation on LJH model only
  • Colour code wiring diagrams
  • Rotary type limit switches readily adjustable in both directions
    • .......more details
LJH-353-1-RH

Doorlec 1 HP 575V 3PH Jackshaft Operator

  • Model LJH lasts an average of 10 million cycles
  • Available with ⅓ HP to 1 HP single-phase or three-phase motor and is equipped with self-adjusting solenoid brake
  • LJH installation is universal regardless of side (left or right)
  • Speed is approximately 1.4 feet per second or about 0.3 meters per second
  • Comes equipped with a manual chain hoist
LJH-353-3/4

Doorlec 3/4HP 575V 3PH Jackshaft Operator

Technical information
LJH-383-1/2-RH

Doorlec 1/2 HP 208V 3PH Jackshaft Operator Right Hand

  • Heavy duty industrial type control station open close stop 24V. control circuit
  • Universal mounting right or left
  • Floor level disconnect device electrical and mechanical
  • Emergency chain hoist operation on LJH model only
  • Colour code wiring diagrams
  • Rotary type limit switches readily adjustable in both directions
    • .......more details
Technical information
LJHW-311-1/2

Doorlec Ind Jackshaft Op. Watertight ECB 1/2 HP 115V-1Ph

  • Heavy-Duty Industrial Operator with Waterproof Mod. for Sectional or Rolling Steel Doors
  • DC-2000 logic with adjustable Timer-To-Close Delay On Reverse and Traffic Light Control (monitored board optional)
  • Solenoid Brake prevents coasting and secures the door when closed
  • TEFC (sealed) continuous duty electric motor with overload protection
  • Automatic Friction Clutch protects the door and operator
  • Self-aligning Heavy Duty sealed Pillow Block bearings on all shafts for high cycle applications
    • .......more details
LJHW-321-1/2

Doorlec Ind Jackshaft Op. Watertight ECB 1/2 HP 230V-1Ph

  • Heavy-Duty Industrial Operator with Waterproof Mod. for Sectional or Rolling Steel Doors
  • DC-2000 logic with adjustable Timer-To-Close Delay On Reverse and Traffic Light Control (monitored board optional)
  • Solenoid Brake prevents coasting and secures the door when closed
  • TEFC (sealed) continuous duty electric motor with overload protection
  • Automatic Friction Clutch protects the door and operator
  • Self-aligning Heavy Duty sealed Pillow Block bearings on all shafts for high cycle applications
    • .......more details
LJHW-343-1/2

Doorlec Ind Jackshaft Op. Watertight ECB 1/2 HP 460V-3Ph

  • Heavy-Duty Industrial Operator with Waterproof Mod. for Sectional or Rolling Steel Doors
  • DC-2000 logic with adjustable Timer-To-Close Delay On Reverse and Traffic Light Control (monitored board optional)
  • Solenoid Brake prevents coasting and secures the door when closed
  • TEFC (sealed) continuous duty electric motor with overload protection
  • Automatic Friction Clutch protects the door and operator
  • Self-aligning Heavy Duty sealed Pillow Block bearings on all shafts for high cycle applications
    • .......more details
LJHW-353-1/2

Doorlec Ind Jackshaft Op. Watertight ECB 1/2 HP 575V-3Ph

  • Heavy-Duty Industrial Operator with Waterproof Mod. for Sectional or Rolling Steel Doors
  • DC-2000 logic with adjustable Timer-To-Close Delay On Reverse and Traffic Light Control (monitored board optional)
  • Solenoid Brake prevents coasting and secures the door when closed
  • TEFC (sealed) continuous duty electric motor with overload protection
  • Automatic Friction Clutch protects the door and operator
  • Self-aligning Heavy Duty sealed Pillow Block bearings on all shafts for high cycle applications
    • .......more details
LJHW-383-1/2

Doorlec Ind Jackshaft Op. Watertight ECB 1/2 HP 208V-3Ph

  • Heavy-Duty Industrial Operator with Waterproof Mod. for Sectional or Rolling Steel Doors
  • DC-2000 logic with adjustable Timer-To-Close Delay On Reverse and Traffic Light Control (monitored board optional)
  • Solenoid Brake prevents coasting and secures the door when closed
  • TEFC (sealed) continuous duty electric motor with overload protection
  • Automatic Friction Clutch protects the door and operator
  • Self-aligning Heavy Duty sealed Pillow Block bearings on all shafts for high cycle applications
    • .......more details
LLB420-22

Laminated Bumper Black 4" Projection L-Shaped 20" x 22" Sold Individually

  • For use in low to medium traffic loading docks in factories and warehouses.
  • Fabric reinforced rubber pads cut from recycled truck tires.
  • Rubber pads laminated between steel angles and secured with 3/4” rods
  • Bumper is fastened to dock surface with 3/8” steel angles and/or flat plates depending on the model chosen.
  • Wall mounting hole size is 7/8” diameter.
  • This model has angles on both sides
    • .......more details
LLB420-22SF

Steel Faced Laminated Bumper Black 4" Projection L-Shaped 20" x 22" Sold Individually

  • Used on docks where excessive friction from up and down trailer movement occurs (yard jockeys air ride trailers etc.).
  • Can be used in material handling application where medium to heavy dock protection is required
  • “Gliding” heavy-duty steel face is 3/8” thick and independently anchored with elongated holes to face of bumper allowing bumper to compress AND offer high surface abrasion resistance
  • Rubber pads laminated between steel angles and secured with 3/4” rods
  • Bumper is fastened to dock surface with 3/8” steel angles and/or flat plates depending on the model chosen.
  • Bumper is fastened to dock surface with 3/8” steel angles and/or flat plates depending on the model chosen.
    • .......more details
LLB620-22

Laminated Bumper Black 6" Projection L-Shaped 20" x 22" Sold Individually

  • For use in low to medium traffic loading docks in factories and warehouses.
  • Fabric reinforced rubber pads cut from recycled truck tires.
  • Rubber pads laminated between steel angles and secured with 3/4” rods
  • Bumper is fastened to dock surface with 3/8” steel angles and/or flat plates depending on the model chosen.
  • Wall mounting hole size is 7/8” diameter.
  • This model has angles on both sides
    • .......more details
LLB620-22SF

Steel Faced Laminated Bumper Black 6" Projection L-Shaped 20" x 22" Sold Individually

  • Used on docks where excessive friction from up and down trailer movement occurs (yard jockeys air ride trailers etc.).
  • Can be used in material handling application where medium to heavy dock protection is required
  • “Gliding” heavy-duty steel face is 3/8” thick and independently anchored with elongated holes to face of bumper allowing bumper to compress AND offer high surface abrasion resistance
  • Rubber pads laminated between steel angles and secured with 3/4” rods
  • Bumper is fastened to dock surface with 3/8” steel angles and/or flat plates depending on the model chosen.
  • Bumper is fastened to dock surface with 3/8” steel angles and/or flat plates depending on the model chosen.
    • .......more details
LM21AFCB

LiftMaster Advance Fire Control Release Device

  • UL 864 Revision 9 compliant.
  • 3 count obstruction cycling.
  • Selectable 10 20 30 or 60-second time delay on alarm.
  • Test key switch – Floor level testing.
  • Motor voltage sensing.
  • Form C relay output.
    • .......more details
LM21XP

LiftMaster Extended Performance Fire Door Release Device

  • UL864 Revision 9 compliant
  • Programmable DIP switch delay setting - either 10 20 30 or 60 seconds delay of door release to permit passage clearance
  • Inputs for normally open 2- or 4-wire detectors and 4-wire normally closed detectors
  • Trouble and alarm relays for communication with the fire alarm control panel if required
  • Audible trouble sounder to indicate when the release device is not operational
  • On board diagnostic LEDs for easy troubleshooting
    • .......more details
Installation manual
LM21XPBB

LiftMaster Extended Performance Fire Door Release Device with Battery Backup

  • UL864 Revision 9 compliant
  • Programmable DIP switch delay setting - either 10 20 30 or 60 seconds delay of door release to permit passage clearance
  • Inputs for normally open 2- or 4-wire detectors and 4-wire normally closed detectors
  • Trouble and alarm relays for communication with the fire alarm control panel if required
  • Audible trouble sounder to indicate when the release device is not operational
  • On board diagnostic LEDs for easy troubleshooting
    • .......more details
Installation Manual
LM21XPBBVB

LiftMaster Extended Performance Fire Door Release Device with Battery Backup and Voice Board ** No Longer Available

  • UL864 Revision 9 compliant
  • Programmable DIP switch delay setting - either 10 20 30 or 60 seconds delay of door release to permit passage clearance
  • Inputs for normally open 2- or 4-wire detectors and 4-wire normally closed detectors
  • Trouble and alarm relays for communication with the fire alarm control panel if required
  • Audible trouble sounder to indicate when the release device is not operational
  • On board diagnostic LEDs for easy troubleshooting
    • .......more details
Installation manual