Somfy 525A2 Altus RTS 120V Motor (1043423)
Somfy 525A2 Altus RTS 120V Motor (1043423)
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Altus RTS tubular motor -- universal RTS motor for shutters, screens, and awnings
The Altus RTS motor is Somfy's universal tubular motor for rolling shutters, retractable awnings, and exterior screens, with a radio receiver built in so it runs on Somfy RTS remotes and wall switches with no separate receiver to install.
Benefits
- Built-in RTS radio receiver -- no external receiver or control wiring needed
- Plug-and-play power cord, or hardwire it in -- interchangeable cord lengths available
- Limits set and adjusted directly from a handheld RTS remote
- Long-range RTS control (no line-of-sight needed) plus smartphone/tablet and voice control via TaHoma
- Motorized awnings can cut summer heat gain up to 77%; screens can block up to 90% of solar rays
Specifications
| Torque / Speed | 25 Nm / 20 rpm |
| Radio Frequency | 433.420 MHz |
| Head type | Star |
| Control | Radio Technology Somfy (RTS), built-in receiver |
| Power | 120V, plug-in or hardwired |
| Warranty | 5 years |
Compatible with: Rolling shutters, retractable awnings, and exterior screens
Official Somfy documentation
Sold by ShadeMotorsDirect -- an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
Common questions
What is the Altus RTS 525A2 used for?
Part 1043423 is Somfy's universal tubular motor for rolling shutters, retractable awnings and exterior screens. Its built-in RTS radio receiver removes the need for an external receiver or control wiring, and you set and adjust limits from a handheld RTS remote.
What torque, speed and tube size does it take?
Somfy rates the 1043423 at 25 Nm of torque and 20 rpm, with a noise level of 56 dB. It has a star head and fits tubes with an inside diameter of 1.85 in or larger.
What power does it need?
It runs on 120V/60Hz AC, with an operating range of 108 V to 132 V, a rated current of 1.6 A and a 180 W draw while running. It ships with a removable 9.84 ft, 3-wire SJTW cable, and you can plug it in or hardwire it.
Which remotes and switches work with it?
Any Somfy RTS transmitter, including the Telis 1 and Telis 4 RTS Patio remotes (1810643, 1810645), the Situo 5 Channel RTS Pure remote (1870575) and DecoFlex RTS wall switches (1810813, 1810897). It holds up to 12 channels, and Somfy rates RTS range at 656.2 ft in open field.
Can it retract an awning when the wind picks up?
Yes, with a Somfy RTS wind sensor. The Eolis 3D WireFree RTS wind sensor senses wind-generated movement and signals the motor to retract the awning. It comes in white (1816081), black (1816082) and off-white (1816083).
Can I control it from an app or on a schedule?
Yes. A TaHoma Switch hub (1871037) adds app and voice control for RTS motors, and the Telis 1 Chronis RTS timer (1805237) runs the motor on a set schedule. RTS is one-way radio, so the app sends commands but cannot report position.
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How this motor compares
Verified Somfy specs for this motor and its closest alternatives.
| Specification | You're viewing
Somfy 525A2 Altus RTS 120V Motor (1043423)
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Somfy 525A2 120V 4-Wire Motor (1043424)
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Somfy 510S2 Altus RTS 120V 3-Wire Motor (1038165)
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Somfy 530R2 Altus RTS 120V 3-Wire Motor (1038169)
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|---|---|---|---|---|
| Price | ||||
| Torque (Nm) | 25.0 | 25.0 | 10.0 | 30.0 |
| Speed (rpm) | 20 | 20 | 38 | 14 |
| Control | RTS radio | Wired 4-wire | RTS radio | RTS radio |
| Power | 120V AC | 120V AC | 120V AC | 120V AC |
| Motor family | LT50 | LT50 | LT50 | LT50 |
| What's different | The product on this page | Same size, Wired 4-wire control | 10.0 Nm instead of 25.0 | 30.0 Nm instead of 25.0 |
| Buy | Currently viewing | View details | View details | View details |
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Guides for this product
Somfy Altus RTS 525A2 Shutter and Awning Motor Fit Guide
Exterior work asks more of a motor than interior work does. A rolling shutter carries its own weight in slats,... Read
Somfy Oximo RTS 525A2 Rolling Shutter Motor Fit Guide
Somfy builds a separate motor line for rolling shutters, and this is it. The Somfy Oximo RTS 525A2 (1033402) carries... Read






