Somfy Simu DMI5 10Nm Crank Override Motor Fit Guide

A rolling shutter over a ground-floor door has one hard requirement during an outage: a person has to raise it by hand. The Simu DMI5 10Nm 12rpm 120V (2000772) carries a crank socket in the motor head for that job. Somfy builds the override into every DMI5, which saves the installer from bolting on a separate emergency crank kit. The 10 Nm version sits at the entry point of the DMI5 torque range, and it suits the compact shutters and small cassette awnings that do not need 30 Nm behind them.

Pick the DMI5 10 Nm when the shutter has to move without power

Installers reach for the DMI5 on exterior shutters above doors, on egress windows that a fire code wants openable, and on storefront security shutters where staff need a way up after the breaker trips. The override turns through a 27:1 reduction with 6 mm and 7 mm fittings, so one person raises a loaded curtain from a crank handle at waist height.

Torque sets the ceiling. Somfy rates ref 2000772 at 10 Nm and 12 rpm on 120V/60Hz power. Weigh the finished curtain and measure the tube before you order, because torque headroom decides whether the motor holds the shutter parked at the upper limit over years of cycles. A narrow single-window shutter on a 60 mm octagonal tube lives inside the 10 Nm window. A wide aluminum security shutter does not, and Somfy covers that load with the 20 Nm (2000773), 30 Nm (2000774), 35 Nm (2000771), 40 Nm (2000775) and 50 Nm (2000776) refs in the same line, all with the same crank head.

Shutters and awnings this motor turns

Somfy publishes ref 2000772 for awnings and rolling shutters. Two things make it fit a shallow box. Overall length runs 24.29 in (617 mm), and the motor head measures 24 mm, which leaves clearance at the bracket end where a longer head would foul the guide rail. Exterior boxes also sit in weather, and the IP 44 rating plus Class I insulation covers that placement.

Interior shade work belongs to the Sonesse line, which Somfy engineers around quiet operation for bedrooms and conference rooms. The DMI5 earns its place outdoors, on the shutter and awning jobs where a hand crank matters more than a decibel figure.

Verified specs for ref 2000772

Tube fit starts with the crown and drive pair

The DMI5 body sits in the 50 mm LT50 and T5 class, and Somfy's own accessory list for ref 2000772 names the crowns and drives that seat on it. Match the crown to the tube profile first, then take the drive from the same family. An octagonal tube wants an octagonal pair. A round tube wants a round crown and a clip drive sized to the tube wall.

Four sets cover most shutter and awning tubes on this motor. Somfy lists the 60 mm octagonal LT50/LT60 aluminum drive with stop (9012951) for 60 mm octagonal shutter tube, the T5/T6 70 mm octagonal aluminum drive (9011878) for heavier 70 mm octagonal stock, the 2.5 in round crown (9707026) with a soft clip drive (9206041) for 60 mm round tube, and the 2 in hard clip drive (9206088) for 47 mm round tube. Order the crown and the drive together. A crown that fits the tube and a drive that does not will let the tube spin against the motor under load.

Add a drive stop and screw (9910004) on the drive side of a shutter tube. The stop keeps the drive from walking along the tube once the curtain starts cycling.

Brackets and the crank side

Somfy publishes several DMI bracket plates for this ref, and the box shape picks the one you need. The 1-piece round adjustable cast plate (9420647) bolts flat to a solid box wall and takes the motor head direct. The 2-piece inside mount adjustable U (2005701) suits a box where you need to shift the motor position after the tube goes in. The 100 mm x 100 mm plate (9706034) matches a square mounting pad. On the crank side, the 7 mm hex extension shaft, 330 mm (9420659) brings the override down to a reachable height, and Somfy lists a 220 mm shaft (9420657) for a shallower drop.

Measure from the motor head to the planned crank position before you order a shaft. The hex end has to clear the box lip and the window trim with the handle on it, and a shaft cut long enough to flex will chatter against the box.

Wiring and limit setup

The motor arrives with an 8.2 ft 4-wire VVF cable in white. Run it to a wired rocker switch or into a wired control panel, bond the ground conductor for the Class I insulation, and keep the two travel conductors straight at the switch so up stays up. The DMI5 takes no radio receiver, and control stays on the wired switch. Somfy covers radio control in the same body with the DMI5Hz and T5Hz motors, which carry a built-in receiver for Simu Hz transmitters.

Set the end-limits on the motor head with the tube loaded and the curtain hung. Progressive mechanical limits hold 28 turns of travel, which covers a tall shutter curtain on a 60 mm tube. Curtain weight changes where the shutter settles at the bottom, so limits dialed on a bare tube will drift once the slats go on. Run the shutter through four full cycles after you set them and check the top stop again.

The Somfy Simu DMI5 10Nm 12rpm 120V (2000772) ships as the motor alone. Build the order with a bracket plate, a crown and drive pair for your tube, and an extension shaft if the crank has to reach past the box lip. Those four line items turn the motor into a working shutter drive. Check the tube profile and the tube inner diameter with a caliper before you commit to the crown, since a quarter turn of guesswork there costs a return.

Questions installers ask about the DMI5 10 Nm

Which tube does the Simu DMI5 10 Nm fit?

The DMI5 sits in the 50 mm LT50 and T5 class. Somfy lists crowns and drives for 60 mm and 70 mm octagonal tube, 2.5 in and 2 in round tube, and DS 78 mm and 85 mm round tube on ref 2000772. Pick the crown by tube profile, then take the drive from the same set.

How does the manual override on a DMI5 work?

A crank handle engages a hex socket in the motor head through a 27:1 reduction, with 6 mm and 7 mm fittings supplied. Turning the handle drives the tube with the power off. Add the 7 mm hex extension shaft 9420659 when the head sits above a reachable height inside the shutter box.

Can a Somfy RTS remote run the DMI5 10 Nm?

The DMI5 is a wired motor with no built-in receiver, and it runs from a wired switch. Somfy builds radio control into the DMI5Hz and T5Hz lines, which pair with Simu Hz transmitters out of the box. Order one of those refs when the job calls for a handheld remote.

What power does ref 2000772 draw?

Somfy publishes 80 W while the motor runs and 0 W in standby, on a 120V/60Hz supply at 0.8 A. The 0 W standby figure means the motor pulls nothing between cycles, which keeps a bank of shutters off the panel load calculation when they sit parked.

Shade Motors Direct is an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.