This motor is used for Roll down Shutters or Shades.
Specify 40, 60 or 70 millimeter crown and drive.
NO MANUAL OVERRIDE: you cannot crank with handle if the power is out.

This motor comes with instructions

Small Motor (50nm) without manual override

  • Product Description: Motors without manual override 20NM motor, Speed RPM 19 This comes in 40, 60 and 70 millimeter sizes