Somfy Sonesse Ultra 504A8 RTS 24V DC Motor (1134023)
Somfy Sonesse Ultra 504A8 RTS 24V DC Motor (1134023)
Not sure this fits? Ask our tech team
Your case has been assigned to Colin. He'll be in touch shortly via email.
Sonesse ULTRA 50 ultra-quiet DC tubular motor for interior window coverings
The Sonesse ULTRA 50 range puts window coverings in motion with ultra-quiet precision. This 24V DC motor is built for shades where near-silent operation matters most.
Benefits
- Ultra-quiet operation -- 35 dB
- Square motor head: use the Sonesse ULTRA 50 DC bracket, not a star-head bracket
- Compatible with Somfy's full range of RTS controls, sensors, and timers
- Voice and app control via TaHoma; integrates with third-party automation
- Backed by Somfy's standard 5-year warranty
Specifications
| Torque / Speed | 4 Nm / 25 rpm |
| Noise level | 35 dB |
| Power supply | 24V DC |
| Radio Frequency | 433.420 MHz |
| Head type | Square |
| Protection index | IP 20 (interior only) |
| Motor tube size | 50mm |
| Application | Interior window coverings, roller/solar shades, screens |
| Warranty | 5 years |
Compatible with: Sonesse 50 tube, crown & drive, and the square-head Sonesse ULTRA 50 DC bracket
Official Somfy documentation
Sold by ShadeMotorsDirect -- an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
Common questions
How quiet is the Sonesse ULTRA 504A8 RTS?
Somfy rates it at 35 dB, quieter than the 45.1 dB Sonesse 506S2 RTS (1001809). That makes it a strong pick for bedrooms, offices and other interior rooms where shade noise matters.
What are the key specs of part 1134023?
Somfy rates it at 4 Nm and 25 rpm, with a 1.5 A rated current and 36 W draw while running. It fits tubes with a minimum inside diameter of 1.85 in and carries an IP 20 rating for interior use.
How do I power this motor?
It runs on 24V DC through a short two-wire fast connector lead. Somfy lists the 24V DC 1.67 Amp Plug-in Wall Mount Transformer (1822209) as its power supply.
Which bracket does it need?
The 504A8 has a square head, so it mounts with the Sonesse Ultra 50 DC Motor Bracket with Spring Ring (9020957). Star head LT50 brackets are made for other Sonesse 50 motors.
Which remotes and switches work with it?
Any Somfy RTS transmitter works, including the Situo 1 and Situo 5 RTS Pure remotes (1870571, 1870575), the Telis 1 Chronis RTS Timer (1805237) and DecoFlex RTS wall switches. The motor stores 12 channels, and Somfy rates range at 656.2 ft in open field.
Can I control it from my phone?
Yes, through the Somfy TaHoma Switch (1871037), which adds app control, schedules and voice assistant support. RTS is one-way radio, so the app sends commands but does not report shade position.
Couldn't load pickup availability
How this motor compares
Verified Somfy specs for this motor and its closest alternatives.
| Specification | You're viewing
Somfy Sonesse Ultra 504A8 RTS 24V DC Motor (1134023)
| 
Somfy Sonesse Ultra 50 506A2 RH RTS 120V 3-Wire Motor (Round Head) (1002564)
| 
Somfy Sonesse Ultra 50 506A2 120V 4-Wire Motor (star head) (1002558)
| 
Somfy Sonesse Ultra 50 506A2 RH 120V 4-Wire Motor (round head) (1002560)
|
|---|---|---|---|---|
| Price | ||||
| Torque (Nm) | 4.0 | 6.0 | 6.0 | 6.0 |
| Speed (rpm) | 25 | 24 | 24 | 24 |
| Control | RTS radio | RTS radio | Wired 4-wire | Wired 4-wire |
| Power | 24V DC | 120V AC | 120V AC | 120V AC |
| Motor family | Sonesse Ultra 50 | Sonesse Ultra 50 | Sonesse Ultra 50 | Sonesse Ultra 50 |
| What's different | The product on this page | 6.0 Nm instead of 4.0 | 6.0 Nm instead of 4.0, Wired 4-wire | 6.0 Nm instead of 4.0, Wired 4-wire |
| Buy | Currently viewing | View details | View details | View details |
Most recent reviews
Real help. Real parts. Fast delivery.
“Spoke with Colin. He configured my whole Somfy setup, and the products arrived in 3 days.”
“Great experience. Fast shipping and the exact part I needed.”
“Couldn’t find these Somfy parts anywhere else. Delivered on time, brand new.”
“I ordered the wrong remote at first, but customer support helped me find the correct replacement fast.”
“The part was exactly what I needed and worked right out of the box.”
“Fast shipping, fair pricing, and authentic Somfy product.”
“I had no idea which charger my motor needed. They helped me confirm it before I ordered.”
“Smooth process from start to finish. Product arrived quickly and fixed my issue.”
“Way easier than trying to search random websites for the right Somfy accessory.”
