Somfy · 40 series · ref. 1245922
Sonesse 40 Zigbee 409R2 — 120 V
Nine newton-metres at forty decibels. The most powerful motor in the interior lineup, and yet among the quietest.
Price
$639 MSRP
Motor only. Extension cable to be chosen based on the cable run.
Request a quote for a price tailored to your project: more motors, better price.Prices subject to change without notice.
- Torque 9 Nm
- Noise 40 dB
- Min. width 24 in
- Power supply Wired 120 V
- Protocol Zigbee
Motor 13 / 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 9 newton-metres, more than double the battery-powered Sonesse 40 and four times the torque of a Sonesse ULTRA 30. It handles the largest and heaviest shades an interior blind can carry.
This power comes with the lowest noise level in the lineup, at 40 decibels. Somfy places it in its Designed for Silence series, and it has earned two industry awards.
Running on 120 volts, it also acts as a router in the Zigbee network: since it is always plugged in, it relays the signal of other devices instead of depending on it.
9 newton-metres
The highest torque in the interior lineup, for very large shades.
40 dB
The lowest noise level in the lineup, despite its power.
Zigbee network router
Powered at all times, it extends the radio range of all your devices.
0.05 W on standby
Ten times less than the RTS version. Carbon footprint of 5.21 kg compared with 56.4 kg.
Interchangeable head
White included, black and grey available, to match the fabric.
UL listed
Meets building code requirements, in residential and commercial settings alike.
02 — Spec sheet
The numbers, straight up.
Somfy documentation
All the official documentation (31 documents, French and English)
Specifications checked one by one against the Somfy Pro Canada catalogue on October 1, 2026.
| Torque | 9 Nm |
|---|---|
| Speed | 14 rpm |
| Noise level | 40 dB |
| Radio protocol | Zigbee 3.0 |
| Network role | Mesh router — extends Zigbee range |
| Power supply | 120 V AC, 60 Hz |
| Power draw in operation | 120 W |
| Standby power | 0.05 W |
| Rated current | 1 A |
| Motor length | 21.46 in (545 mm) |
| Minimum blind width | 24 in |
| Motor diameter | 40 mm |
| Compatible tube | 2 in and 2 in heavy duty |
| Limit capacity | 250 turns |
| Connection | Fast connector, 1.64 ft cable |
| Protection rating | IP 31 |
| Insulation class | Class II |
| Certification | UL, FCC |
| Carbon footprint | 5.21 kg CO₂ over the life cycle |
| Operating temperature | 0 to 60 °C |
| 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)
Installation and use
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
Brochures and flyers
Environment
03 — Which blinds
The right blind for this motor.
24 in
Blind width
This motor requires a blind at least 24 in wide.
Below this width, the motor does not fit in the aluminum tube the fabric rolls onto.
It has the best power-to-size ratio in the catalogue: 9 newton-metres from 24 in, where the battery-powered Sonesse 40 offers only 4 and requires 28 1/8 in.
What to consider before choosing
- Speed is 14 rpm, compared with 36 for the Sonesse 40 RTS 120 V. Power comes at the cost of speed: a large blind comes down more slowly, but without straining.
- A power outlet must be accessible near the blind, or a circuit must be planned. This is the constraint of any 120 V motor.
- A TaHoma is required for the app, schedules and voice control. No RTS remote is compatible: control goes through a Ysia device, a DecoFlex Zigbee or a TaHoma.
- A 404S2 version exists in the same series, at 4 newton-metres and a higher speed, offered at a lower price. It suits a blind of standard size.
04 — Compatibility and power
How it's powered and controlled.
- Power supply
- Wired 120 V
- Plugs into an ordinary outlet or is hard-wired. The most powerful for its size.
- 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
- 21.46 in
- Min. width: 24 in
05 — Frequently asked questions
What customers ask.
What is the most powerful blind motor?
The Sonesse 40 Zigbee 409R2, with 9 newton-metres. That is more than double the battery-powered Sonesse 40 and four times the torque of a Sonesse ULTRA 30. It handles the largest interior shades.
Is such a powerful motor noisy?
No. At 40 dB, it shares the lowest noise level in the lineup. Somfy places it in its Designed for Silence series.
Why is it slower than the RTS model?
It turns at 14 rpm, compared with 36 for the Sonesse 40 RTS 120 V. Power comes at the cost of speed: a large blind comes down more slowly, but without the mechanism straining.
Does it draw much power at rest?
0.05 W on standby, ten times less than the RTS version. Its life-cycle carbon footprint is 5.21 kg compared with 56.4 kg.
Does it improve the network's range?
Yes. Because it is powered at all times, it acts as a router in the Zigbee network and relays the signal of other devices, which strengthens coverage throughout the home.
Is there a less powerful version?
Yes, the 404S2 version offers 4 newton-metres at a higher speed, at a lower price. It suits a blind of standard size.
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 — this page | 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 | 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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Somfy® and the product names mentioned belong to their respective owners. Product images: © Somfy Systems, Inc. Le Gars des Stores is an independent retailer and installer; this site is not operated or endorsed by Somfy.
