Somfy · 40 series · ref. 1245993
Sonesse 40 WireFree Zigbee — lithium-ion battery
The most powerful battery motor, and yet the quietest. Four newton-metres at 40 decibels, without a single wire.
Price
$703 MSRP
Motor only. The USB-C charger, which is required, is sold separately.
Request a quote for a price tailored to your project: more motors, better price.Prices subject to change without notice.
- Torque 4 Nm
- Noise 40 dB
- Min. width 28 1/8 in
- Power supply Built-in lithium-ion battery
- Protocol Zigbee
Motor 15 / 19 — All 19 motors
- 01 · Sonesse 28 WireFree RTS — External Battery$308 MSRP
- 02 · Sonesse 30 RTS 24V DC$470 MSRP
- 03 · Sonesse 30 RS485 24V DC$577 MSRP
- 04 · Sonesse 30 Zigbee 24V DC$550 MSRP
- 05 · Roll Up 28 WireFree RTS V2 — lithium-ion battery$341 MSRP
- 06 · Sonesse 28 WireFree RTS — lithium-ion battery$359 MSRP
- 07 · Sonesse ULTRA 30 WireFree Zigbee — lithium-ion battery$424 MSRP
- 08 · Sonesse ULTRA 30 WireFree RTS — lithium-ion battery$404 MSRP
- 09 · Sonesse 40 RS485 404S2 — 120 V$731 MSRP
- 10 · Sonesse 40 Zigbee 404S2 — 120 V$608 MSRP
- 11 · Sonesse 40 RTS 404S2 — 120 V$579 MSRP
- 12 · Sonesse 40 WT 404S2 — 120 V$355 MSRP
- 13 · Sonesse 40 Zigbee 409R2 — 120 V$639 MSRP
- 14 · Sonesse 40 WireFree RTS — lithium-ion battery$589 MSRP
- 15 · Sonesse 40 WireFree Zigbee — lithium-ion battery$703 MSRP
- 16 · Maestria+ 50 RTS 510A2$642 MSRP
- 17 · Maestria+ 50 RTS 525A2$723 MSRP
- 18 · Maestria+ 50 RTS 535A2$790 MSRP
- 19 · Maestria+ 50 RTS 550R2$819 MSRP
01 — At a glance
What sets this motor apart.
This motor delivers 4 newton-metres, double the Sonesse ULTRA 30 and a third more than the Sonesse 40 RTS. It handles the largest shades and heaviest fabrics in the interior lineup, while running on a rechargeable battery.
What sets it apart is that it makes no compromise. Usually, a more powerful motor is noisier. This one goes down to 40 decibels, the lowest level in the entire interior catalogue.
It charges through a USB-C connector, which speeds up charging compared with previous-generation magnetic-head models. A single charge per year is enough under normal use.
4 newton-metres of torque
The most powerful of the battery motors. Lifting capacity of about 35 lb.
40 dB noise level
The lowest noise level in the interior lineup, despite its power.
USB-C charging
Faster charging than previous-generation magnetic heads. USB-C solar panel available.
Replaceable battery
The battery can be changed instead of the motor, which extends the life of the installation.
Interchangeable head
White included, black and grey available, to match the fabric and hardware.
ETL listed
Meets building code requirements, useful in commercial and new construction.
02 — Spec sheet
The numbers, straight up.
Somfy documentation
All the official documentation (32 documents, French and English)
Specifications checked one by one against the Somfy Pro Canada catalogue on October 1, 2026.
| Torque | 4 Nm |
|---|---|
| Speed | 20 rpm |
| Noise level | 40 dB |
| Radio protocol | Zigbee 3.0, 2.45 GHz |
| Open-field range | 80 m |
| Power supply | Built-in, replaceable 12 V lithium-ion battery |
| Charging | USB-C connector |
| Battery life | About one charge per year |
| Power draw in operation | 18.4 W |
| Rated current | 1.7 A |
| Motor length | 25.59 in (650 mm) |
| Minimum blind width | 28 1/8 in |
| Motor diameter | 40 mm |
| Compatible tube | 2 in and 2 in heavy duty |
| Limit capacity | 200 turns |
| Weight | 2.43 lb |
| Protection rating | IP 30 — indoor use |
| Certification | ETL, FCC, CE |
| Operating temperature | 0 to 60 °C |
| Standby power | 0.78 W |
| Insulation class | Class III |
| Antenna | External |
| Warranty | 5 years |
Official Somfy documentation
Every official Somfy document for this motor, gathered in one place by Le Gars des Stores, certified Somfy Expert. The PDFs open on Somfy's website.
In English (24)
Programming
Technical catalogues
Home automation integration
- TaHoma switch integration — Amazon Alexa
- TaHoma switch integration — Brilliant
- TaHoma switch integration — Control4
- TaHoma switch integration — Crestron
- TaHoma switch integration — Crestron Home
- TaHoma switch integration — ELAN
- TaHoma switch integration — Google Home
- TaHoma switch integration — Josh.ai
- TaHoma switch integration — Philips Hue
- TaHoma switch integration — RTI
- TaHoma switch integration — Savant
- TaHoma switch integration — Sonos
In French (8)
Spec sheets
03 — Which blinds
The right blind for this motor.
28 1/8 in
Blind width
This motor requires a blind at least 28 1/8 in wide.
Below this width, the motor does not fit in the aluminum tube the fabric rolls onto.
This width is identical to that of the Sonesse 40 RTS and the Sonesse ULTRA 30 Zigbee. For the same size, however, this motor offers double the torque of the ULTRA 30.
What to consider before choosing
- The USB-C charger is not included and differs from the one used by the other motors in the lineup. The Sonesse 28, ULTRA 30 and Sonesse 40 RTS models use a magnetic-head charger; this one requires a USB-C charger. The two are not interchangeable.
- Open-field range reaches 80 m, compared with 200 m for RTS models. Zigbee makes up for it with a mesh network between devices, which requires enough devices in a large home.
- A TaHoma is required for the app, schedules and voice control. Without a TaHoma, a Ysia remote provides local control.
- No RTS remote is compatible: not Situo, Telis or Smoove. Control goes through a Ysia device, a DecoFlex Zigbee or a TaHoma.
- For a job with several motors, Somfy offers a USB-C charging station that can handle sixteen motors at once.
04 — Compatibility and power
How it's powered and controlled.
- Power supply
- Built-in lithium-ion battery
- No wires to run, installation in one visit: the right choice for renovations. An occasional recharge.
- Protocol
- Zigbee
- Requires a TaHoma or Ysia bridge. Every continuously powered motor extends the home's Zigbee network.
- Compatible tube
- 2 in and 2 in heavy duty
- Family: 40 series
- Length
- 25.59 in
- Min. width: 28 1/8 in
05 — Frequently asked questions
What customers ask.
What is the most powerful blind motor with no electrical wiring?
The Sonesse 40 Zigbee, with 4 newton-metres. It lifts about 35 lb, double the Sonesse ULTRA 30, while running on a rechargeable battery.
Is a more powerful motor noisier?
Not this one. It is the most powerful battery motor, and its 40 dB is the lowest noise level in the interior lineup. The less powerful Sonesse 40 RTS runs at 49 dB.
What charger does this motor need?
A USB-C charger, sold separately. Note: the Sonesse 28, ULTRA 30 and Sonesse 40 RTS use a magnetic-head charger. The two types are not interchangeable.
Can the battery be replaced?
Yes. Somfy designed this motor with a replaceable battery, which extends the life of the installation without changing the motor.
How is it different from the Sonesse 40 RTS?
The Zigbee model offers 4 newton-metres compared with 3, runs at 40 dB rather than 49, charges via USB-C and reports the blind's position and charge level in the app. On the other hand, it requires a TaHoma for remote control.
How many motors can be charged at once on a job site?
Somfy offers a USB-C charging station that can handle sixteen motors at once, designed for large-scale installations.
Do you install in Montreal, Sherbrooke and the Eastern Townships?
Yes. Le Gars des Stores serves the West Island and Montreal, Vaudreuil-Dorion, the South Shore, the North Shore, western Laval and the Eastern Townships (Sherbrooke, Magog); elsewhere, depending on the project. We handle measuring, made-to-measure ordering, installation and programming.
06 — Same family
Compare with its neighbours.
40 series — compatible tube: 2 in and 2 in heavy duty
| Motor | Length | Min. width | Torque | Noise | Power supply | Price | View page |
|---|---|---|---|---|---|---|---|
| Sonesse 40 RS485 404S2 — 120 V | 20.24 in | 22 3/4 in | 4 Nm | 42 dB | Wired 120 V | $731 MSRP | |
| Sonesse 40 Zigbee 404S2 — 120 V | 20.24 in | 22 3/4 in | 4 Nm | 42 dB | Wired 120 V | $608 MSRP | |
| Sonesse 40 RTS 404S2 — 120 V | 20.47 in | 23 in | 4 Nm | 42 dB | Wired 120 V | $579 MSRP | |
| Sonesse 40 WT 404S2 — 120 V | 18.82 in | Confirmed when measuring | 4 Nm | 42 dB | Wired 120 V | $355 MSRP | |
| Sonesse 40 Zigbee 409R2 — 120 V | 21.46 in | 24 in | 9 Nm | 40 dB | Wired 120 V | $639 MSRP | |
| Sonesse 40 WireFree RTS — lithium-ion battery | 25.59 in | 28 1/8 in | 3 Nm | 49 dB | Built-in lithium-ion battery | $589 MSRP | |
| Sonesse 40 WireFree Zigbee — lithium-ion battery — this page | 25.59 in | 28 1/8 in | 4 Nm | 40 dB | Built-in lithium-ion battery | $703 MSRP |
Request a quote for a price tailored to your project: more motors, better price.Prices subject to change without notice.
Certified Somfy Expert
A motorization project?
Certified Somfy Expert, authorized distributor and installer. Sales, measuring, installation and programming: one team, since 2014.
The West Island and Montreal, Vaudreuil-Dorion, the South and North Shores, western Laval and the Eastern Townships. Elsewhere, depending on the project.
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