A wide folding arm awning with a heavy acrylic cover asks for more torque than a 40 Nm motor can hand it, and a retrofit shutter on a finished exterior wall leaves an installer nowhere to pull control cable. The Somfy DMI5Hz answers both jobs at once. Somfy rates reference 2004675 at 50 Nm and 12 rpm, with a 433.420 MHz Hz radio receiver built into the motor, so a handheld transmitter drives the curtain with no receiver box and no control conductor in the wall.
Torque, speed and the openings this motor suits
Somfy publishes two applications for reference 2004675: awning and rolling shutter. The 50 Nm rating sits at the top of the DMI5 range, and 12 rpm keeps a heavy slat curtain moving at a pace the guide rails tolerate over thousands of cycles. Size the motor from the weight of the curtain and the diameter of the tube, then check the result against Somfy's sizing tables before you place the order.
The Shade Motors Direct description for this SKU also names exterior solar screens. Somfy lists awning and rolling shutter on its e-catalogue page and on its US product page, and names no third application. Order against the two Somfy publishes.
Shops that already run the wired DMI5 (reference 2000776) will recognize the mechanics here. Somfy gives the DMI5Hz the same 50 Nm output and the same 12 rpm, then adds the receiver, which removes the wall box and the run of control wire from the bill of materials.
Verified specifications
Every figure below comes from Somfy's published record for reference 2004675 on somfypro.com and somfysystems.com.
| Specification | Value |
|---|---|
| Official designation | DMI5 HZ01 50/12 120/60 C6M WHI |
| Reference | 2004675 |
| Torque | 50 Nm |
| Speed | 12 rpm |
| Power supply | 120V / 60 Hz |
| Rated current | 2.1 A |
| Power in operation | 250 W |
| Standby power | 0.34 W |
| Radio frequency | 433.420 MHz |
| Radio coding | Rolling code, 16 million combinations |
| Protection index | IP 44 |
| Insulation class | Class I |
| Limit switch | Mechanical, 28 turn capacity |
| Head type | CMO (crank manual override) |
| Cable | SJTW, 19.69 ft |
| Operating temperature | -4 to 140 F |
| Thermal protection | 4 min |
| Applications | Awning, rolling shutter |
| Approval | UL |
| Warranty | 5 years |
The store spec table for this SKU prints five rows and leaves out the current draw, the power figures, the radio frequency, the IP rating, the insulation class, the limit switch type, the head type and the temperature range. Use the table above when you specify the job.
The CMO head and what it changes on site
Somfy publishes head type CMO for this reference. A crank manual override head carries an eye that takes a crank rod, so the building owner can drive the shutter by hand when the power drops. That eye also dictates the bracket. A star bracket will not hold a CMO head, and an installer who orders one discovers the mismatch at the top of a ladder with the awning already on the wall.
The CMO head brings a second requirement. Somfy expects the override eye to clear the fascia or the hood, so measure the pocket depth before you fix the plate. Crank rods and universal joints come from the DMI accessory line and get ordered to the drop of the opening.
Brackets, plates and the parts that mount it
Three mounting parts in the Shade Motors Direct catalogue carry the DMI5Hz. The Somfy Simu DMI Motor Bracket Plate, 100mm x 100mm (9706034) gives a flat square face for a shutter box or a steel angle, and it is the plate most awning shops keep on the van. The Somfy Simu DMI Bracket, 1-Piece Round Adjustable Cast Plate (9420647) adds rotational adjustment, which earns its price on a retrofit where the existing fixings refuse to line up with the tube centre.
Installers working on the wider Simu Type 5 platform also fit the Somfy Simu T5 Operator Bracket, 80mm x 80mm Square (9520049), an 80mm square plate that suits a tighter shutter box. Somfy lists T5 and T6 drive wheels and brackets among the accessories for this motor, so the Type 5 hardware family is the right place to shop for its mounting.
Crowns and drives ship as separate parts and get matched to the tube profile, whether that is a 60mm or 70mm octagonal shutter tube or a round awning roller. Measure the tube inside the shutter box before ordering, since two shutters on one elevation can carry different profiles after a partial refurbishment.
Hz radio control and the wiring you still run
The receiver inside the DMI5Hz listens at 433.420 MHz with rolling code security across 16 million combinations. Pair a Somfy or Simu Hz transmitter to the motor and the shutter answers a button press with no receiver box mounted behind the fascia. Somfy's Hz range covers handheld transmitters and keychain units, and the store description points at the 4 channel keychain transmitter (2008329) for this motor.
Power wiring stays conventional. The DMI5Hz ships with 19.69 ft of SJTW cable and draws 2.1 A at 120V, and Somfy classifies it Class I, so the installation needs a proper earth connection and an accessible means of isolation. IP 44 covers splash from any direction, which suits a motor sitting inside a shutter box or an awning hood on an exposed elevation.
Standby draw sits at 0.34 W. On a facade carrying twenty shutters, that figure decides the annual standby load of the installation, and specifiers on commercial work get asked for it.
Setting limits and getting the first cycle right
Somfy fits mechanical limit switches with a 28 turn capacity to this motor. An installer sets the upper and lower stops with the adjusters on the motor head, cycles the curtain, then trims each stop until the slats seat in the guides without straining the arms. Mechanical limits hold their setting through a power cut, which is one reason exterior shops keep specifying them on shutters that see winter weather.
Thermal protection cuts in after 4 minutes of continuous running. On a large shutter, that window covers several full cycles, and a motor that trips during commissioning needs a cooling period before the next test. Plan the commissioning sequence across several openings so the DMI5Hz on any one opening gets a rest between cycles.
Check the crank eye position before the final fix. Somfy builds the override into the head, and a plate rotated a quarter turn from where it should sit puts the eye against the hood.
Shade Motors Direct stocks the Somfy DMI5Hz 50Nm 12rpm 120V (2004675) with the mounting plates alongside it. Order the motor, the plate that matches your box, and the crown and drive for your tube profile in one go, since a missing drive wheel holds a whole elevation.
Frequently asked questions
What torque does the Somfy DMI5Hz produce?
Somfy publishes 50 Nm at 12 rpm for reference 2004675. That output places it at the top of the DMI5 range and suits large awnings and rolling shutters. Confirm the figure against the weight of your curtain and the diameter of your tube using Somfy's sizing tables before you order the motor.
Does the DMI5Hz need an external radio receiver?
No. Somfy builds a 433.420 MHz Hz receiver into the motor, with rolling code security across 16 million combinations. Pair a Somfy or Simu Hz transmitter to the motor and it responds with no receiver box on the wall and no control conductor in the run.
Which bracket fits the DMI5Hz head?
Somfy publishes head type CMO for this reference, so it takes a DMI or Simu Type 5 mounting plate rather than a star bracket. The 100mm square DMI plate (9706034) and the adjustable round cast plate (9420647) both carry it, and the 80mm T5 operator bracket (9520049) suits a tighter shutter box.
What applications does Somfy list for reference 2004675?
Somfy lists awning and rolling shutter on both its e-catalogue page and its US product page. The motor carries an IP 44 rating and a -4 to 140 F operating range, which covers an exterior shutter box or an awning hood through a cold winter and a hot summer.
Shade Motors Direct is an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
