Short answer: The Somfy Sonesse ULTRA 30 WireFree RTS (Li-ion), part 1003310, is a 2 Nm, 20 rpm rechargeable battery roller shade motor with a built-in RTS receiver. It runs at 42 dB, fits tubes with an inside diameter of 1.13 in or larger, recharges through the Somfy Lithium-ion Charger (V2 Head) 9025166, and replaces the earlier Sonesse 30 WireFree RTS (1003128).
Start with the tube and the window
The Somfy Sonesse ULTRA 30 WireFree RTS (Li-ion) (1003310) belongs in an interior roller shade where you would rather not run a wire. Bedrooms, finished rentals, glass walls with no outlet nearby, a nursery retrofit. Somfy builds the battery into the motor body, so the shade carries its own power and the only cable you handle is a charger.
Two measurements settle the order. The first is the tube: Somfy publishes a minimum internal tube diameter of 1.13 in (about 28.7 mm), and the crown and drive have to match the tube profile your shade maker used. The second is room for the motor. With a body length of 25.69 in and a riveting position of 24.92 in, the motor end takes up a fair share of a narrow shade, so measure the tube before you commit on a small window.
Buyers search for this motor as "sonesse ultra 30 wf rts li ion" or by the part number 1003310. Same product. Somfy's own model string reads SONESSE ULTRA 30 WF RTS LI-ION.
Verified Somfy specs for 1003310
The figures below come from Somfy's product page for reference 1003310.
| Somfy name | Sonesse ULTRA 30 WireFree RTS (Li-ion) |
| Torque | 2 Nm (17.7 in-lb) |
| Speed | 20 rpm |
| Power | 12V DC, one embedded rechargeable Li-ion battery |
| Rated current | 1.5 A |
| Consumption | 18 W running, 0.001 W standby |
| Radio | RTS, 433.420 MHz, 12 channels, 656.2 ft open field |
| Noise level | 42 dB |
| Protection | IP 20, Class III |
| Head type | Round |
| Motor diameter | 1.18 in (30 mm) |
| External diameter | 1.97 in (50 mm) |
| Minimum tube inside diameter | 1.13 in (28.7 mm) |
| Length | 25.69 in, riveting position 24.92 in |
| Limits | Electronic, 200-turn capacity |
| Connection | No cable, removable, Molex connector |
| Temperature | 32 to 140 F operating, -4 to 140 F storage |
| Thermal time | 4 min |
| Weight | 1.74 lb |
| Application | Interior blinds and shades |
| Warranty | 5 years |
Read the 2 Nm torque as a light-to-medium interior shade number. For fabric weight, bottom bar and width, run the job through our Somfy shade motor sizing guide before you order.
Crowns, drives and brackets that fit
Somfy publishes crown and drive support for Acmeda, RollEase, Hunter Douglas and Louvolite systems on this motor, so the tube maker picks the adapter. Two common RollEase setups:
- A 1.5 in RollEase tube takes the Somfy RollEase 1.5" Crown & Drive (9020674).
- A 2 in RollEase tube takes the Sonesse 30 WireFree and ULTRA crown and drive kit for RollEase 2" tubes (9021017), which names the ULTRA motor in its title.
Use 30 mm class crowns and drives here. Parts sized for a 40 mm motor will not seat on this head. If the shade came from another brand, match the tube's inside profile and the bracket pattern first, then choose the adapter that matches both. Our guide to Somfy crowns, drives and brackets walks through the profiles.
Charging the embedded Li-ion battery
Somfy lists the Somfy Lithium-ion Charger (V2 Head) (9025166) as the compatible charger for 1003310. It plugs into a standard outlet and connects to the motor's charge port, so the shade stays on its brackets while it charges. Tall windows add a length problem, and Somfy covers it with extension charging cables, an 8 in V2 head lead (9021131) and a 94.5 in lead (9021016), that bring the charge point within reach.
For a window that gets steady daylight, Somfy also names the WireFree Li-ion Solar Panel Kit (9027294) as a charging option for this motor. A solar panel tops the battery up between manual charges. Our WireFree batteries, chargers and cables guide sorts out which charger and cable belongs to which WireFree motor, since the Li-ion and AA-battery families use different hardware.
RTS control: remotes, switches and hubs
The built-in RTS receiver works on 433.420 MHz and stores 12 channels, so the motor answers any Somfy RTS transmitter you pair to it. A single shade pairs well with a one-channel remote. A room with several shades suits the Somfy Situo 5 Channel RTS Pure Remote (1870575), which runs five shades or groups from one handset. For a fixed wall control with no wiring, a DecoFlex RTS WireFree wall switch keeps the cordless theme going.
Pairing follows Somfy's standard RTS procedure. Our walkthrough on how to pair, add and delete a Somfy RTS remote covers adding a second remote. For app and voice control, the TaHoma Switch hub reaches RTS motors like this one.
Somfy builds this motor as an RTS product. If you want Zigbee, the Sonesse ULTRA 30 WireFree Zigbee is its sister motor, and RTS remotes will not pair with it.
Replacing a Sonesse 30 WireFree RTS (1003128)
Somfy lists 1003310 as the replacement for the Sonesse 30 WireFree RTS (Li-ion), reference 1003128. Torque and speed carry over at 2 Nm and 20 rpm, along with the 1.13 in minimum tube ID, the 1.18 in motor diameter and the 1.5 A, 18 W electrical figures. Somfy rates the ULTRA at 42 dB, quieter than the 49 dB published for 1003128.
Check one number before you swap. Somfy publishes the ULTRA at 25.69 in long, against 23.7 in for 1003128. That extra 2 in matters inside a tight tube or a narrow shade, so measure the tube length and the room left past the idler end. Our Sonesse 30 WireFree fit guide covers the older motor if you are working on a mixed install.
Setup notes installers ask about
Somfy fits electronic limits with a 200-turn capacity, so you set the upper and lower stops during RTS setup with no limit screws to turn. Follow the motor's Somfy install guide for the button sequence, since it varies by remote. Somfy lists the connection as no cable, with a removable Molex connector.
Keep this motor indoors. Somfy rates it IP 20 with a 32 to 140 F operating range and lists interior blinds and shades as its application. Somfy publishes a weight of 1.74 lb.
Somfy documentation for this motor, including the WireFree databook, sits in our spec library. Browse the rest of the range in our Somfy WireFree and battery motors collection.
FAQ
What does the Somfy 1003310 motor replace?
Somfy lists the Sonesse ULTRA 30 WireFree RTS (Li-ion), part 1003310, as the replacement for the Sonesse 30 WireFree RTS (Li-ion), part 1003128. Torque, speed and minimum tube size match at 2 Nm, 20 rpm and 1.13 in. The ULTRA runs at 42 dB and measures 25.69 in long, about 2 in longer than 1003128, so check your tube length first.
Which charger works with the Sonesse ULTRA 30 WireFree RTS?
Somfy names the Lithium-ion Charger (V2 Head), part 9025166, for this motor. It plugs into a wall outlet and connects to the charge port while the shade stays mounted. For high windows, add an extension charging cable, either 8 in (9021131) or 94.5 in (9021016). Somfy also lists the WireFree Li-ion Solar Panel Kit, part 9027294, as a charging option.
What tube size does the Sonesse ULTRA 30 WireFree fit?
Somfy publishes a minimum internal tube diameter of 1.13 in, about 28.7 mm, with a 1.18 in motor diameter. The crown and drive must match the tube profile. A 1.5 in RollEase tube uses crown and drive 9020674, and a 2 in RollEase tube uses kit 9021017. Use 30 mm class adapters; 40 mm parts will not seat on this motor.
Can I control the 1003310 with a Zigbee remote or hub?
No. The 1003310 carries a built-in RTS receiver on 433.420 MHz with 12 channels, so it pairs with Somfy RTS remotes, RTS wall switches and RTS-capable hubs such as TaHoma Switch. Somfy sells the Sonesse ULTRA 30 WireFree Zigbee as a separate motor for Zigbee systems. Pick the protocol before you order, since the radio sits inside the motor.
Sources: Somfy Pro product page for reference 1003310 (Sonesse ULTRA 30 WireFree RTS (Li-ion)) and reference 1003128, somfypro.com.
Shade Motors Direct is an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
