A drapery motor earns its keep at the moment the fabric turns heavy. Lined pinch pleat panels on a 20 ft living room track weigh more than most people guess, and a motor sized for a bedroom sheer will strain against them. The Somfy Irismo 35 Mini DC RTS carries drapery to 77 lbs across tracks running out to 32 ft, and it draws that load from a plug-in 24V DC supply rather than a junction box. No electrician, no rough-in, no wall opened up.
Draperies the Irismo 35 Mini DC moves
Somfy positions this reference for interior window coverings, draperies. That covers pinch pleat panels and RippleFold treatments riding a Somfy drapery track. The track can run straight, bend around a bay, or follow a curve. One-way draw and center opening both work once you fit the matching arm kit at the master carrier.
Keep the motor indoors. Somfy rates it IP 24, which covers a splash and nothing past that, and the operating window runs 32 to 140 F. A covered patio with real weather exposure wants a different family.
Weight and track length decide the motor
The Irismo name carries its own rating. The 35 in Irismo 35 points at 35 kg of fabric, which Shade Motors Direct publishes as 77 lbs. Somfy's e-catalog page for reference 1003004 prints the electrical and radio record without a weight or track-length column, so treat 77 lbs and 32 ft as catalog figures and confirm a borderline job against the current Drapery Databook before you order.
Most residential runs sit well under both ceilings. A 14 ft RippleFold track in lined cotton lands near 30 lbs of fabric. Heavy velvet, blackout lining, or a spliced 28 ft run climbs toward the top of the range, and that job wants a heavy duty master carrier and a fresh belt rather than a bigger motor.
Verified specifications
Every figure below comes from Somfy's published record for reference 1003004, the Irismo 35 (Mini DC) RTS with 24V DC power supply.
| Torque | 0.6 Nm |
| Speed | 87.5 rpm |
| Motor supply | 24V DC, plug-in power supply included |
| Current | 2 A |
| Power in operation | 30 W |
| Standby consumption | 0.81 W |
| Control | Radio Technology Somfy (RTS), receiver built into the motor |
| Radio frequency | 433.420 MHz, rolling code |
| Channels | 12 |
| Range in open field | 656.2 ft |
| Noise level | 39 dB |
| Protection index | IP 24 |
| Insulation class | Class I |
| Operating temperature | 32 to 140 F |
| Limit repeatability | +/- 10 |
| Dimensions | 9.09 in L x 3.66 in W x 2.09 in H |
| Cable length | 13.12 ft |
| Warranty | 5 years |
| Application | Interior window coverings, draperies |
Two numbers on that list shape the install more than the rest. The 87.5 rpm belt speed moves a 16 ft panel across in a few seconds, which suits a room where the drapery opens on a morning schedule. The 39 dB reading puts the motor under the sound of ordinary conversation, so a bedroom wake-up scene stays civil.
Track hardware that completes the run
The motor drives a belt, and the belt drives the master carrier. Everything between those two points needs to match the track.
- The Somfy Glydea Drive Pulley (1780945) sits at the idle end of the track and returns the belt. A worn pulley shows up as belt chatter long before it fails.
- Somfy High Performance 10mm Belt (1782084) ships on a 198 ft roll, which covers a whole job of tracks and leaves stock for a splice repair later.
- The Somfy One Touch Ceiling Bracket (1780907) clips the track to a ceiling without a screwdriver at the track itself. Count one bracket every 30 in of track, and add one at each splice joint.
- Somfy RippleFold 80% Carriers (1780903) set the fold depth. The 80% spacing runs 5 carriers per ft and gives a shallower wave than the 120% option, which reads cleaner on a narrow window.
Order the carriers by track length rather than panel width. A 12 ft track at 80% takes 60 carriers before you add the master carrier and the end runner.
RTS control and the TaHoma path
Somfy builds the RTS receiver into the motor head, so a remote pairs to the motor with nothing in between. No external receiver box, no control wiring back to a panel. The motor answers 12 channels and holds 656.2 ft of open field range, which covers a house with room to spare once walls take their cut.
Pair a Situo remote for one room, or bring the drapery into a DecoFlex wall switch where a guest expects to find a control. TaHoma adds app control, schedules and voice, and it puts the drapery on the same scene as the roller shades in the room. Somfy's RTS Pocket Programming Guide walks the limit-setting sequence step by step.
Touch Motion earns a mention here. A light pull on the leading edge of the fabric starts the motor, which people reach for before they find the remote.
Install notes worth knowing first
The motor mounts at either end of the track, so plan the head for the side with the outlet. That 13.12 ft cable gives real freedom, and a drapery pocket or a return wall hides the head in most rooms. Set limits by remote rather than by a screwdriver at the motor, since the radio sequence reaches the head after the track goes up.
Power outages take care of themselves. The manual override lets a homeowner draw the panels by hand, and the motor picks its limits back up when power returns. Limit repeatability of +/- 10 keeps the leading edge landing in the same place run after run, which matters most on a center-opening pair where two panels meet.
One caution on the power supply. The 24V DC brick belongs to this motor, so keep it with the job rather than in a parts bin. A replacement supply has to match the connector on the motor you receive.
FAQ
What track does the Irismo 35 Mini DC need?
It runs on Somfy drapery track with a 10mm belt and a drive pulley at the idle end. Straight, bent and curved track all work. The motor head clamps at one end of the track, and the belt loop between the head and the pulley pulls the master carrier. Track length runs to 32 ft on the catalog rating.
How loud is the Irismo 35 Mini DC RTS?
Somfy publishes 39 dB for reference 1003004. That reading sits below ordinary conversation and below most roller shade motors, which is why the Irismo family shows up in bedrooms and media rooms. Belt drive keeps the sound steady across the travel rather than spiking at the start.
Does the Irismo 35 need hardwiring?
No. The 24V DC power supply ships with the motor and plugs into a standard outlet. The motor carries a 13.12 ft cable, so the head can sit at the track end while the supply reaches a receptacle behind furniture. Somfy draws 30 W during travel and 0.81 W at rest.
Can I draw the drapery by hand during an outage?
Yes. Manual override releases the drive, so the panels pull by hand with the power down. Touch Motion works the other direction during normal use: a light tug on the fabric starts a motorized open or close without touching a remote. Limits hold through the outage.
The Somfy Irismo 35 Mini DC RTS Drapery Motor (1003004) ships with its 24V DC power supply and carries Somfy's 5 year warranty. Pair it with the drive pulley and belt for the track run, then set carrier count from the finished track length.
Shade Motors Direct is an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
