Tube fit for the Sonesse 30 RS485
Somfy builds the Sonesse 30 RS485 around a 1.14 in motor body, and that body drops into a roller tube with a 1.13 in minimum internal diameter. Fabricators reach for the 30 mm platform when a headrail, cassette, or ceiling pocket leaves no room for a 40 mm motor and the shade still has to run on a wired control bus. The product listing for this SKU prints 1.5 in as the tube minimum. Somfy publishes 1.13 in against reference 1241144, and Somfy's number is the one to cut tube against. Half an inch of tube diameter changes the headrail section, the fascia return, and the bracket you order, so start the takeoff from the e-cat figure.
The other half of the fit question sits at the head. Somfy gives this motor a round head, which lands it on the RollEase and SkyLine bracket family through an adaptor plate rather than a star bracket.
Shades the Sonesse 30 RS485 drives
Somfy lists two applications for reference 1241144: interior window coverings, meaning blinds and shades, and projection screens. The motor turns 2 Nm at 25 rpm, which converts to 17.7 in-lb. That torque covers the interior roller work the 30 mm platform exists for, a bank of 48 in wide screen-fabric shades on a 1.5 in tube, a blackout shade in a bedroom pocket, or a projection screen that has to drop to a repeatable stop every time.
Somfy rates the motor at 47 dB. Conference rooms, media rooms, and hotel guest rooms carry that figure well. Speed regulation on the RS485 platform holds a row of shades in line as they travel, which is the reason spec writers put a wired bus on a mullion wall in the first place.
A projection screen install rewards the electronic limit system here. Somfy gives the motor 125 turns of limit capacity, enough travel for a tall screen without a gearbox change.
Verified specifications
Every figure below comes from Somfy's published record for reference 1241144 on somfypro.com and somfysystems.com.
| Specification | Somfy published value |
|---|---|
| Torque | 2 Nm (17.7 in-lb) |
| Speed | 25 rpm |
| Power supply | 24V DC (21.6 V min, 26.4 V max) |
| Rated current | 0.725 A |
| Power in operation | 16 W |
| Standby power | 0.283 W |
| Control | RS485 two-way bus |
| Head type | Round |
| Minimum tube internal diameter | 1.13 in |
| Motor diameter | 1.14 in |
| Unwrapped length | 18.98 in |
| Limit switch | Electronic, 125 turn capacity |
| Noise level | 47 dB |
| Cable | VVF, 5 conductor, 0.82 ft |
| Protection index | IP 30 |
| Insulation class | Class III |
| Operating temperature | 32 to 140 F |
| Storage temperature | -4 to 176 F |
| Thermal protection | 5 min |
| Applications | Interior blinds, shades, projection screens |
| Warranty | 5 years |
Crown, drive, and bracket parts that fit
The crown and drive set carries the motor inside the tube and transfers torque to the tube wall, so the set has to match the tube profile you specified, not the motor. Two sets cover most Sonesse 30 work on RollEase tube.
- Somfy Sonesse 30 RollEase 1.5 in Crown and Drive (9020674) pairs the motor with 1.5 in RollEase tube, the smallest tube that clears the 1.13 in minimum with room for the drive.
- Somfy Sonesse 30 Crown and Drive Kit for RollEase 2 in Tubes (9021017) steps the same motor up to 2 in tube when the shade is wider and the fabric roll needs the larger diameter to keep the roll off the fascia.
At the bracket, the round head needs an adaptor before it meets standard roller hardware. The Somfy RollEase Sonesse 30 Motor Bracket Adapter Plate (9016378) gives the head a mounting pattern that drops into RollEase SkyLine and ZMC XL brackets. Pair it with the Somfy RollEase SkyLine Bracket Set, 2 in Projection (9017910) on a fresh install, and the shade hangs on a projection that clears most window trim.
Order the crown and drive, the adaptor plate, and the bracket set together. A motor that arrives without its drive sits on the bench until the second box shows up.
RS485 wiring and the SDN bus
Somfy ships this motor with a 0.82 ft VVF cable, 5 conductors, at the head. Two conductors carry 24V DC power and two carry the RS485 data pair. The short factory lead expects a junction close to the bracket, so plan the low-voltage drop into the pocket rather than running the motor lead across the headrail.
RS485 gives the motor two-way communication on the Somfy Digital Network. Each motor on the bus takes an address, reports its own position back to the controller, and accepts a position command in percent rather than an open or close pulse. Integrators get precise intermediate stops that way, and a control system can read the shade state after a power event instead of guessing at it. Somfy Digital Network supports motor grouping on the bus, so one bus run serves a facade of shades that move as a room, a zone, or a single opening.
Power the bus from a Somfy 24V DC SDN supply sized to the total current on the run. Each Sonesse 30 RS485 draws 0.725 A while it travels and 0.283 W at rest, so a motor count times rated current gives the supply the number it needs. Class III insulation and the IP 30 rating keep this motor on the interior side of the wall.
Setup notes before the shade goes up
Set the limits with the motor mounted in the tube and the fabric attached. Somfy's electronic limit system stores the upper and lower stop in the motor, and the 125 turn capacity leaves headroom on a tall screen. A setting tool or the SDN controller writes the limits over the bus, so the installer never reaches behind a fascia to press a button on the head.
Thermal protection cuts in after 5 minutes of continuous run. Commissioning a long row of shades back to back can reach that window, so stagger the test cycles and give a motor a rest before the final walkthrough. Somfy backs the motor with a 5 year warranty.
Check the tube internal diameter with a caliper before the drive goes in. Tube stock varies by supplier, and a 1.5 in nominal tube with a heavy wall can close the clearance the 1.14 in motor body needs.
Ordering the Sonesse 30 RS485
The Somfy Sonesse 30 RS485 24V DC (1241144) ships as the bare motor. Add the crown and drive set for your tube, the adaptor plate, and the bracket set, and the assembly is complete on the bench. Somfy's install guide and the Low Voltage Databook sit on the product page for the wiring diagrams and the bus topology rules.
Does the Sonesse 30 RS485 work with RTS remotes?
This motor communicates over the RS485 wired bus. Control comes from an SDN controller, a wall interface on the bus, or an integration system that speaks Somfy Digital Network. Somfy builds RTS radio control into its own RTS motors, and the Sonesse 30 RTS is the reference to order when a project calls for handheld radio control on the 30 mm platform.
What tube diameter does this motor need?
Somfy publishes a 1.13 in minimum internal tube diameter for reference 1241144, with a 1.14 in motor body. RollEase 1.5 in and 2 in tube both accept the motor with the matching crown and drive set. Measure the actual internal diameter of your tube stock, since wall thickness varies between suppliers on the same nominal size.
How many turns of travel do the limits hold?
The electronic limit system holds 125 turns between the upper and lower stop. That capacity covers tall interior shades and projection screens on a 1.5 in or 2 in tube. Limits get written over the bus from a setting tool or the SDN controller, and the motor keeps them through a power interruption.
Which power supply suits a run of these motors?
Use a Somfy 24V DC SDN power supply rated above the combined draw of the motors on the run. Each motor pulls 0.725 A during travel and 0.283 W in standby. Somfy's Low Voltage Databook prints the supply sizing tables and the maximum cable lengths for the bus.
Shade Motors Direct is an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
