Somfy Sonesse 40 404S2 WT 120V 4-Wire Motor (fast connect) (1240377)
Somfy Sonesse 40 404S2 WT 120V 4-Wire Motor (fast connect) (1240377)
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Somfy Sonesse 40 404S2 WT 120V 4-Wire Motor (Fast Connector) -- wired interior motor
The Sonesse 40 404S2 WT is a wired 120V motor delivering 4Nm at 36rpm with progressive-adjustment (PA) limits, for interior shades, blinds, and projection screens. This variant includes a Fast Connector for quick power hookup.
Benefits
- Standard wired 4-wire control, progressive-adjustment (PA) limit switch
- Fast Connector for quick, tool-free power hookup
- Fits small-diameter tubes (38mm+ internal diameter)
- IP44 motor / IP55 fast connector rating
- 5-year Somfy warranty
Specifications
| Torque / Speed | 4 Nm (35 in-lb) / 36 rpm |
| Control | Standard 4-wire (PA limits) |
| Power supply | 120V AC, 60Hz |
| Rating | IP44 motor, IP55 fast connector |
| Cable | Fast Connector, 1.6 ft SJTW |
| Warranty | 5 years |
Compatible with: 40mm octagonal and round roller tubes, 400 Series crown and drive sets
Official Somfy documentation
Sold by ShadeMotorsDirect -- an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
Common questions
What is the Sonesse 40 WT 404S2 with Fast Connector?
Part 1240377 is a wired 120V tubular motor for interior blinds, shades and projection screens. It uses 4-wire control and a Fast Connector lead, and its slim round head fits small tubes. Somfy rates it at 4 Nm and 36 rpm.
What size tube does it fit?
Somfy lists a minimum tube inside diameter of 1.46 in, and the motor measures 18.82 in long. The LS40 Crown and Drive Set (9012224) fits 40mm x 1.5mm round tube, and the 40mm Octagonal Tube (1781154) is a listed match.
What power and wiring does it need?
It runs on 120V AC (108-132 V), draws 0.95 A and uses 110 W running and 0.46 W on standby. The 1.64 ft white 4-conductor lead ends in a Fast Connector, and extensions such as the 16.4 ft 4C cable (9021120) reach the switch.
How are limits set, and how quiet is it?
Mechanical limits with a 40 turn capacity set the up and down stops. Somfy lists 42 dB, IP 44, Class I insulation, 15.44 lb of traction force and an operating range of 32 °F to 140 °F.
Which controls work with it?
This is a wired motor with no built-in radio, so it runs from a wall switch or relay control. To add RTS remotes and wall switches, wire in the Somfy Universal RTS Receiver for 110V AC motors (1810627).
How does it differ from the version without a Fast Connector?
This version has a Fast Connector on a 1.64 ft lead for plug-together wiring. Somfy also makes the 404S2 WT without a Fast Connector (1001553), which this store carries.
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How this motor compares
Verified Somfy specs for this motor and its closest alternatives.
| Specification | You're viewing
Somfy Sonesse 40 404S2 WT 120V 4-Wire Motor (fast connect) (1240377)
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Somfy Sonesse 40 404S2 RS485 SDN Motor (4Nm, 36rpm) (1240562)
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Somfy Sonesse 40 406A2 WT 120V 4-Wire Motor (fast connect) (1240378)
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Somfy LS40 404S2 Sonesse RTS 120V Motor without fast connector (1001636)
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|---|---|---|---|---|
| Price | ||||
| Torque (Nm) | 4.0 | 4.0 | 6.0 | 4.0 |
| Speed (rpm) | 36 | 36 | 24 | 36 |
| Control | Wired 4-wire | RS485 (SDN) | Wired 4-wire | RTS radio |
| 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 | 6.0 Nm instead of 4.0 | Same size, RTS radio control |
| Buy | Currently viewing | View details | View details | View details |






