Somfy Sonesse 40 406A2 RS485 SDN Motor (6Nm, 24rpm) (1240563)
Somfy Sonesse 40 406A2 RS485 SDN Motor (6Nm, 24rpm) (1240563)
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Somfy Sonesse 40 RS485 406A2 SDN Motor -- wired, two-way control for mid-torque interior shading
The Sonesse 40 RS485 406A2 delivers 6Nm of lifting torque in the same slim, wired RS485 platform as the rest of the Sonesse 40 SDN line, communicating over the Somfy Digital Network for hard-wired, addressable control in commercial and multi-family projects.
Benefits
- Two-way RS485 communication for SDN and animeo IP building-management integration
- Fits tubes with 38mm (1.46") or larger internal diameter
- Thin round head available in white, black, or grey to match hardware
- UL listed; IP31 rated, Class II insulation
- Standby draw under 0.5W; push-button programming with LED confirmation
- 5-year Somfy warranty
Specifications
| Torque / Speed | 6 Nm (53 in-lb) / 24 rpm |
| Control | RS485 (Somfy Digital Network) |
| Power supply | 120V AC, 60Hz |
| Min. tube diameter | 38mm (1.46") |
| Cable | Fast Connector, white |
| Weight | ~2.8 lb |
| Warranty | 5 years |
Compatible with: 40mm octagonal and round roller tubes, 400 Series crown and drive sets, SDN RS485 commissioning tools
Official Somfy documentation
- Sonesse 40 RS485 -- Spec Sheet (PDF)
- 400 Series -- Databook (PDF)
- Sonesse 40 RS485 406A2 -- 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 RS485 406A2 designed for?
It is a wired 120V tubular motor for interior shades on the Somfy Digital Network (SDN). It communicates two-way over RS485, so a building system can address each shade on its own. The 406A2 is the 6 Nm model in the Sonesse 40 SDN line.
What torque and speed does it deliver?
Somfy rates part 1240563 at 6 Nm and 24 rpm, with 15.44 lb of traction force and a 44 dB noise level. It uses an electronic limit switch with a 250 turn capacity. For lighter shades, the 404S2 RS485 (1240562) runs at 4 Nm and 36 rpm.
What size roller tube does it fit?
Somfy lists a minimum tube inside diameter of 1.46 in (38mm), and the motor measures 21.46 in long. The LS40 Crown and Drive Set (9012224) fits 40mm x 1.5mm round tube, and the RollEase 2 in Bracket Kit R8 Series (9012313) mounts it in RollEase hardware.
What power and wiring does it need?
It runs on 120V AC (108-132 V) at 0.95 A, with 114 W in operation and 0.5 W on standby. The 1.64 ft white SVT lead ends in a Somfy Fast Connector. Extension cables such as the 8.4 ft Fast Connector Cable with Plug (9021115) carry power to the outlet.
Which controls work with this motor?
Commands arrive over a wired SDN RS485 bus. SDN DecoFlex keypads, such as the SDN V2 DecoFlex Digital Keypad, 6-Button Group Controller (1871497), give wall control. The Somfy Connect UAI Plus (1870272) connects the network to third-party automation systems.
How is it set up and commissioned?
Push-button programming on the motor head, with LED confirmation, handles basic setup. For addressing and network configuration, installers use the RS485 Setting Tool (9017142) or connect a computer through the USB to RS485 Adaptor for SDN (9015260).
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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 406A2 RS485 SDN Motor (6Nm, 24rpm) (1240563)
| 
Somfy Sonesse 40 406A2 WT 120V 4-Wire Motor (fast connect) (1240378)
| 
Somfy Sonesse 40 404S2 RS485 SDN Motor (4Nm, 36rpm) (1240562)
| 
Somfy Sonesse 40 409R2 RS485 SDN Motor (9Nm, 14rpm) (1240564)
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|---|---|---|---|---|
| Price | ||||
| Torque (Nm) | 6.0 | 6.0 | 4.0 | 9.0 |
| Speed (rpm) | 24 | 24 | 36 | 14 |
| Control | RS485 (SDN) | Wired 4-wire | RS485 (SDN) | RS485 (SDN) |
| 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, Wired 4-wire control | 4.0 Nm instead of 6.0 | 9.0 Nm instead of 6.0 |
| Buy | Currently viewing | View details | View details | View details |
