Somfy LS40 404S2 Sonesse RTS 120V Motor without fast connector (1001636)
Somfy LS40 404S2 Sonesse RTS 120V Motor without fast connector (1001636)
Sonesse 40 RTS 404S2 RH (no Fast Connector) -- ultra-quiet 40mm tubular motor for interior window coverings
The Sonesse 40 RTS 404S2 RH (no Fast Connector) is a wired 120V tubular motor from Somfy's quietest interior shading range, delivering 4 Nm (35 in-lb) of torque at 36 rpm for roller shades, solar screens, Roman shades, and large-format blinds. Radio Technology Somfy (RTS) is built in, so it pairs directly with Somfy remotes, sensors, and TaHoma.
Benefits
- Ultra-quiet operation, engineered around 44 dBA with noise-absorbing brake, rotor, and gearbox
- Compact 40mm design fits smaller roller tubes and tighter headrails
- Electronic limits with streamlined RTS programming
- Compatible with Somfy's full range of RTS remotes, sensors, and timers
- Voice and app control by adding TaHoma
- Backed by Somfy's 5-year warranty
Specifications
| Torque / Speed | 4 Nm (35 in-lb) / 36 rpm |
| Radio Frequency | 433.420 MHz |
| Head type | Round |
| Control | Radio Technology Somfy (RTS), built-in receiver |
| Power | 120V AC, 60 Hz |
| Cable | 3-wire, without Fast Connector |
| Limit type | Electronic |
| Protection / Noise | IP 44 / 44 dB |
| Warranty | 5 years |
Compatible with: 40mm round and octagonal tubes with matching Sonesse 40 / 400 Series crowns, drives, and brackets
Official Somfy documentation
- Sonesse 40 RTS – Spec Sheet (PDF)
- 400 Series Databook (PDF)
- RTS Pocket Programming Guide (PDF)
- Sonesse 40 RTS – Somfy Pro Product Page
Sold by ShadeMotorsDirect -- an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
Common questions
What is the Sonesse 40 RTS 404S2 RH built for?
Part 1001636 is a wired 120V motor from Somfy's quiet Sonesse 40 range for interior blinds, shades and projection screens. Its compact 40mm body fits smaller tubes and tighter headrails, and a built-in RTS receiver handles wireless control.
What torque and speed does it deliver?
Somfy rates the 1001636 at 4 Nm and 36 rpm, with a traction force of 15.44 lb. It has a round head, electronic limits with a capacity of 250 turns, and needs a tube with an inside diameter of at least 1.46 in. Somfy lists a noise level of 42 dB.
What does without Fast Connector mean for wiring?
This version ships with a 9.84 ft, 3-wire cable with no Fast Connector on the end, for wiring to the 120V/60Hz power feed. It uses 110 W in operation. If you want a plug-together connection, choose the Sonesse 404S2 RTS with Fast Connector (1240380).
Which remotes and switches work with it?
Any Somfy RTS transmitter, including the Situo 1 and Situo 5 RTS Pure remotes (1870571, 1870575), the Telis 16 RTS Pure (1811081) and DecoFlex RTS wall switches (1810813, 1810830). The motor stores up to 12 transmitters. Somfy lists an open-field range of 164.05 ft for this motor.
Can I control it from an app or a voice assistant?
Yes. Add a Somfy TaHoma Switch (1871037) for app control, schedules and voice commands. For a set daily routine without a hub, the Telis 1 Chronis RTS timer (1805237) raises and lowers the shade at the times you choose.
Which crowns and drives fit?
Sonesse 40 and 400 Series hardware fits this motor. Options include the LS40 Crown and Drive Set (9012224) for 40mm round tube and the LS40 2 in Crown and Drive Set (9016352). Somfy rates the motor IP 44 and backs it with a 5-year warranty.
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How this motor compares
Verified Somfy specs for this motor and its closest alternatives.
| Specification | You're viewing
Somfy LS40 404S2 Sonesse RTS 120V Motor without fast connector (1001636)
| 
Somfy Sonesse 40 404S2 RS485 SDN Motor (4Nm, 36rpm) (1240562)
| 
Somfy LS40 409R2 Sonesse RTS 120V Motor (1240382)
| 
Somfy Sonesse 40 404S2 WT 120V 4-Wire Motor (fast connect) (1240377)
|
|---|---|---|---|---|
| Price | ||||
| Torque (Nm) | 4.0 | 4.0 | 9.0 | 4.0 |
| Speed (rpm) | 36 | 36 | 14 | 36 |
| Control | RTS radio | RS485 (SDN) | RTS radio | Wired 4-wire |
| Power | 120V AC | 120V AC | 120V AC | 120V AC |
| Motor family | Sonesse 40 | Sonesse 40 | Sonesse 40 | Sonesse 40 |
| What's different | The product on this page | Same size, RS485 (SDN) control | 9.0 Nm instead of 4.0 | Same size, Wired 4-wire control |
| Buy | Currently viewing | View details | View details | View details |
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