Tube inside diameter sets the first constraint
Somfy publishes a 1.13 in minimum tube inside diameter for the Sonesse 30 Zigbee. The motor body measures 1.14 in across and 18.98 in long, so it hides inside a 1.5 in or 2 in roller tube with room left for the crown and drive. Measure the inside diameter of your tube before you order. A tube with a heavy internal seam can close that clearance even when the nominal size reads correct on the spec sheet.
Torque lands at 2 Nm, close to 17.7 in-lb. That figure carries a standard interior roller shade on a small tube across most residential and light commercial openings. Fabric weight, tube length, and roll-up diameter pull against the motor together, and a wide blackout shade on a short tube loads it harder than a narrow solar screen of the same width.
Shades this motor suits
Interior roller shades on small-diameter tubes are the home ground for the Sonesse 30 Zigbee. Somfy rates it IP 30 with an operating range of 32 F to 140 F, which keeps it inside the building envelope. Designers reach for it in headrails, cassettes, and tight pocket details where a 40 mm or 50 mm motor would force the pocket wider and change the ceiling detail.
Sound level reads 47 dB. Somfy regulates the speed at 25 rpm, and that regulation is what holds a bank of adjacent shades in step across a long wall instead of letting them drift apart over a few cycles. Bedrooms and media rooms gain the most from it. A boardroom wall of eight shades gains even more, because the eye catches one lagging hembar across a run that wide.
Verified specs
Every figure below comes from Somfy's own published record for SKU 1241970.
| Specification | Published figure |
|---|---|
| Official designation | SONESSE 30 ZIGBEE HP 2/25 WEID |
| Torque | 2 Nm (17.7 in-lb) |
| Speed | 25 rpm, regulated |
| Supply voltage | 24V DC (21.6V to 26.4V) |
| Current | 0.8 A |
| Power in operation | 18 W |
| Power in standby | 0.25 W |
| Control protocol | Zigbee 3.0 |
| Radio frequency | 2.450 GHz |
| Radio range | 492.15 ft open field |
| Sound level | 47 dB |
| Minimum tube inside diameter | 1.13 in |
| Motor diameter | 1.14 in |
| Motor length | 18.98 in |
| Cable length | 0.62 ft |
| Head type | Round |
| IP rating | IP 30 |
| Insulation class | Class III |
| Operating temperature | 32 F to 140 F |
| Thermal protection | 4 min |
| Warranty | 5 years |
Crowns, drives, plates, and brackets that fit
A tubular motor needs three parts around it before it turns a shade. The crown locates the motor head inside the tube, the drive couples the output to the tube wall, and the bracket holds the head at the wall or ceiling. Somfy sizes each of those to the tube you picked, and the motor itself stays the same across them.
For a 1.5 in RollEase tube, order the Somfy RollEase 1.5" Crown & Drive (9020674). Move up to a 2 in RollEase tube and the matching set is the Sonesse 30 Crown & Drive Kit for RollEase 2" tubes (9021017). Pick the set that matches your tube, not your motor, because one motor serves both.
On the bracket side, the RollEase SkyLine Bracket Set with 2 in projection (9017910) gives you a clean 2 in standoff from the wall. Somfy pairs it with the RollEase Sonesse 30 Motor Bracket Adapter Plate in white (9016378), which carries the round motor head into a SkyLine or ZMC XL bracket. Order the plate with the bracket. An installer who discovers the gap on site loses the day.
Zigbee control and the TaHoma pro path
The Sonesse 30 Zigbee speaks Zigbee 3.0 on 2.450 GHz, with 492.15 ft of range in open field. Walls, glass, and metal framing cut that number down, and the mesh is what recovers it. Each motor on the network repeats for its neighbors, so a run of shades down a corridor extends coverage rather than straining a single hub link.
Two-way reporting is the practical gain over a one-way radio. The motor answers back with its position, which lets an integrator confirm a scene ran instead of trusting that the command left the hub. Somfy routes commissioning and scene building through the TaHoma pro app. An integrator who already runs a Zigbee ecosystem in the building can fold these shades into it without a second radio standard on the ceiling.
Power and install notes
Plan the low-voltage run first. Somfy specifies 24V DC across a 21.6V to 26.4V window, with 0.8 A draw and 18 W in operation. Standby sits at 0.25 W, which matters when a project puts forty of these on one power supply. Size the supply for the motors that move at once, not for the full count, and keep voltage drop inside that window on long home runs.
The motor ships with a 0.62 ft lead, close to 7.5 in. Put your junction or power distribution point near the motor head, because that pigtail gives you no slack to reach a box across the pocket. Confirm the connector style against the motor you receive before you order a cable or a power supply.
Thermal protection trips after 4 minutes of continuous run, which no interior shade cycle approaches. Testing a full tube of shades in sequence can reach it, so pause between groups during commissioning.
The Somfy Sonesse 30 Zigbee 24V DC Motor (1241970) ships as the motor alone. Add the crown and drive for your tube size, the bracket set, and the adapter plate in the same order, and the shade assembles in one pass. Somfy backs the motor with a 5 year warranty.
Common questions
What tube size does the Sonesse 30 Zigbee need?
Somfy publishes a 1.13 in minimum tube inside diameter. The motor measures 1.14 in in outside diameter and 18.98 in long. Most installers pair it with 1.5 in or 2 in RollEase tubes, matching the crown and drive set to the tube rather than to the motor.
Does this motor work with RTS remotes?
No. The Sonesse 30 Zigbee carries a Zigbee 3.0 radio at 2.450 GHz. RTS remotes transmit on 433.42 MHz and the two radios do not meet. Somfy offers a Sonesse 30 RTS version for RTS projects, and the TaHoma pro app commissions the Zigbee model.
How quiet is the Sonesse 30 Zigbee?
Somfy publishes 47 dB for this motor at a regulated 25 rpm. That level suits bedrooms, media rooms, and executive offices, where a louder exterior-grade motor would carry across the room. The regulated speed also keeps adjacent shades aligned through a full cycle.
What power supply does it need?
The motor runs on 24V DC inside a 21.6V to 26.4V window, drawing 0.8 A and 18 W in operation. Size the supply for the motors that run at the same moment. Confirm the connector on the motor you receive before you order a cable or power supply.
Shade Motors Direct is an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
