Devanco Canada - Get The Right Garage Door Opener‎ and Parts

LIMIT023

Single limit switch (SPDT) used to stop the door at top and Bottom or as disconnect switch
Unimax
Snap-action

LIMIT021

Single limit switch (SPDT) used to stop the door at top and bottom or as disconnect switch
Unimax
Snap-action

Limit Switch Chart

LIMIT020

Single limit switch (SPDT) used to stop the door at top and bottom or as disconnect switch
Unimax
Snap-action

M3A

Provides a bearing to support the shaft and prevent the fall of a door if sudden acceleration occurs.
Ideal for commercial and industrial use; specifically with rolling shutters and balanced and well maintained rolling doors.
Fully resettable and reusable after lockout ocurrs.
Commonly paired with commercial safety bottom brackets in sectional door applications.
Fits 1" shaft
Note: Sectional torsion door systems must be well maintained to ensure desired inertia brake activation.

M15A

Provides a bearing to support the shaft and prevent the fall of a door if sudden acceleration occurs.
Ideal for commercial and industrial use; specifically with rolling shutters and balanced and well maintained rolling doors.
Fully resettable and reusable after lockout ocurrs.
Commonly paired with commercial safety bottom brackets in sectional door applications.
Fits 2" shaft
Note: Sectional torsion door systems must be well maintained to ensure desired inertia brake activation.

Reference manual Technical data Sell sheet