Chain spreader for installation with 1" operator shaft & 1" door shaft.
Includes 2 shaft collars and set screws.
Designed to keep tension on the chain when used with a wall mount commercial operator. It helps avoid premature wear on the door shaft bearing and commercial operator output shaft bearing
Air pressure is lead via a hose or pipe to a diaphragm contact. This contact converts the positive or negative pressure into an electrical contact and pulse.
Molded enclosure
Applications: commercial sectional doors rolling doors and mass transit
Works on doors up to 60ft
Can be used with standard pneumatic hose and Miller Edge extrusion
Automated battery backup - the unit continues to work on batteries with full functionality (but does move more slowly) until the unit gets to about 75% of battery capacity then transitions to push and hold operation.
The 300 series also works with and powers 12V automatic lock systems
Option available: 5-conductor cable (5') to reduce the risks of miswiring incidents available in 5' 10' 15' 20' or 25' lengths
Integrated software fuse that shuts down the unit to help prevent board component disasters should these be incorrectly installed on grossly imbalanced or improperly sized doors.
30:1 40:1 50:1 gearbox ratio are available. Please specify when ordering
Compatible with the PPWR Receiver for gate access control all 315MHz Security+ LiftMaster and Elite Series Gate Openers and all LiftMaster Garage Door Openers manufacture since January 1995
3/4 HP230V 1PH Industrial Continuous Duty Jackshaft Operator
Ideal for Sectional Doors Rolling Steel
Monitored logic board with integral 372Mhz radio receiver that can hold up to 20 transmitters (MK-00647/ MK-00653/ MK-00659) or 200 of the 1 channel hand held transmitters (MK-00660).
N-1 Through-beam (MK-00649) photocells included. Other options available.
3-btn O/S/C (02-103) wall control station included