Two power versions of the Roll Up 28 WireFree RTS V2 sit next to each other in the Somfy catalog, and the battery is the whole difference between them. Reference 1241150 carries a lithium-ion cell inside the motor. Reference 1241162, the motor covered here, draws its 12V DC from a source you pick and order alongside it.
The battery decision behind reference 1241162
Somfy ships 1241162 as a motor with a short two-wire lead and a JST connector. Nothing inside the tube stores energy. A buyer who orders this reference on its own ends up with a shade that will not move, so the power source belongs on the same order as the motor.
The external form pays you back in choice. Hang a rechargeable lithium-ion pack behind the headrail. Load alkaline cells into a reloadable wand and swap them at the window. Run a plug-in supply where an outlet sits close. Feed the motor from a Somfy solar panel kit on a bright elevation and let the sun carry the load. Somfy rates the input window at 9.5 to 16.5 volts, and each of those options lands inside it.
Somfy redesigned the V2 motor head for the installer. The programming button sits recessed in the head. An LED on the head reports a low battery. The quick-lock drive seats the crown and drive without hardware.
Shades this motor drives
Somfy publishes two applications for reference 1241162: interior blinds and interior shades. Fabricators run the Roll Up 28 in roller shades, Roman shades, woven woods and zebra shades. The 1.1 Nm rating and the 20 rpm speed place it in the mid-size residential range, where fabric weight stays modest and the tube stays small.
Tube profile decides the fit before torque enters the conversation. Somfy publishes a 1.05 in minimum internal tube diameter for this reference, a 1.1 in motor diameter and a 1.97 in external diameter across the head. Measure the tube you already have in the headrail and match the crown and drive to that measurement.
Verified specifications for 1241162
Every figure below comes from Somfy's own product record for this reference.
| Specification | Published value |
|---|---|
| Torque | 1.1 Nm |
| Speed | 20 rpm |
| Supply voltage | 12V DC, 9.5 to 16.5 V |
| Rated current | 1.1 A |
| Consumption in operation | 13.2 W |
| Standby consumption | 0.096 W |
| Radio frequency | 433.420 MHz RTS |
| Channels | 12 |
| Range, open field | 656.2 ft |
| Noise level | 54 dB |
| Protection index | IP 20 |
| Insulation class | Class III |
| Head type | Round |
| Motor diameter | 1.1 in |
| External diameter | 1.97 in |
| Minimum internal tube diameter | 1.05 in |
| Length | 12.9 in |
| Limit switches | Electronic, 200 turn capacity, +/- 10 repeatability |
| Cable | 2464, 2 wire, 0.98 ft, JST connector |
| Operating temperature | 32 to 140 F |
| Storage temperature | -4 to 140 F |
| Weight | 0.66 lb |
| Warranty | 5 years |
Somfy publishes a single speed of 20 rpm for reference 1241162. Size the cycle time from 20 rpm.
Crowns, drives and the bracket plate
A Roll Up 28 reaches the tube through a crown and drive matched to that tube's internal profile. Somfy and the fabricators who build around this motor cover the two roller sizes that carry most residential work.
- The RollEase 1.25 in crown and drive (9025815) suits the narrow tubes common in small and mid-width roller shades.
- The crown and drive kit for RollEase 2 in tubes (9021017) covers the wider tube a longer or heavier shade calls for.
Bracket work runs through an adaptor plate. The RollEase SkyLine and ZMC XL bracket adapter plate (9016378) lets the round head land in a bracket built for a neighboring Somfy family, which keeps a retrofit on the existing hardware.
Use 28 mm crowns and drives on this motor. 40 mm parts will not seat.
Power sources and charging
The rechargeable lithium-ion battery pack (9021217) gives the cleanest result on a finished window. It mounts out of sight behind the headrail and recharges from a plug-in charger, which suits a homeowner who wants no cord hanging at the glass.
The reloadable 12V DC battery wand (9018685) takes standard alkaline cells. A property manager with twenty shades in a building keeps cells on the shelf and swaps them in a minute, with no charging cycle to schedule. Somfy also sells a Y harness for running two wands together and wall clips for tidying the tube against the frame.
Somfy publishes 13.2 W in operation and 0.096 W in standby for this motor. Those two figures drive the whole battery-life conversation. A shade that cycles twice a day spends most of its life at 0.096 W, and the standby draw is what sets the interval between charges rather than the travel itself.
RTS control and programming notes
The receiver sits inside the motor, so 1241162 pairs straight to Somfy RTS controls with no separate receiver in the run. Somfy publishes 433.420 MHz, 12 channels of memory and 656.2 ft of open-field range. Walls and steel cut that figure, and a Somfy RTS repeater covers a long run when the remote sits far from the window.
Situo handheld remotes, DecoFlex wall switches and the TaHoma switch all speak to this motor. TaHoma adds scheduling, sun and wind logic on an exterior job, and voice control through the assistants Somfy supports. The RTS "my" position gives the homeowner one button for the favorite stop between open and closed.
Limits are electronic with a 200 turn capacity and +/- 10 repeatability. An installer sets them from the remote through the recessed programming button on the head, so the shade comes off the bench ready and the fine adjustment happens at the window. Keep the RTS Pocket Programming Guide within reach for the button sequences.
Frequently asked questions
Does the Roll Up 28 WireFree RTS V2 include a battery?
Reference 1241162 arrives with no battery. Somfy builds this version for an external 12V DC supply that you choose, which can be the rechargeable lithium-ion pack 9021217, the reloadable wand 9018685, a plug-in supply or a solar panel kit. Order the power source on the same order as the motor.
What tube does a Roll Up 28 fit?
Somfy publishes a 1.05 in minimum internal tube diameter for this reference, with a 1.1 in motor diameter and a 1.97 in external diameter at the head. The crown and drive set matches the motor to the tube, and RollEase 1.25 in and 2 in kits cover most roller shade work.
How fast does reference 1241162 run?
Somfy publishes a single speed of 20 rpm at 1.1 Nm of torque. Size the cycle time of a shade from the 20 rpm figure and the drum diameter the crown gives you.
Which remotes work with this motor?
The RTS receiver is built into the motor, so Somfy Situo remotes, DecoFlex wall switches, Telis timers and the TaHoma switch all pair to it at 433.420 MHz. The motor holds 12 channels of memory, which covers a handheld, a wall switch and a hub on the same shade.
The Somfy Roll Up 28 WireFree RTS V2 (External Battery), part 1241162 ships as a motor and lead. Add the crown and drive for your tube, then the battery pack or wand that fits the way the building will maintain it. Those two decisions turn the reference into a working shade.
Shade Motors Direct is an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
