Somfy 525A2 120V 4-Wire Motor (1043424)
Somfy 525A2 120V 4-Wire Motor (1043424)
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Somfy LT50 525A2 120V 4-Wire Motor -- standard exterior tubular motor
The Somfy LT50 525A2 is a 120V AC standard 4-wire star head tubular motor from the 500 Series. It delivers 25Nm (220" lb) of torque at 20 rpm, wired for control from a switch or third-party relay rather than radio.
Benefits
- Standard 4-wire star head motor -- control from a wired switch or third-party relay
- Mechanical limit switch with 46-turn capacity
- 9.84 ft SJTW 4-wire power cable
- Fits roller tubes with a 1.85 in minimum internal diameter
- Eco-designed -- draws no power in standby mode
- IP 44 protection
- 5-year Somfy warranty
Specifications
| Torque / Speed | 25 Nm (220 in-lb) / 20 rpm |
| Control | Standard 4-wire (wired switch or relay) |
| Power supply | 120V AC, 60Hz, 1.6 A rated current |
| Limit switch | Mechanical, 46-turn capacity |
| Cable | SJTW 4-wire, 9.84 ft |
| Minimum tube internal diameter | 1.85 in |
| Head type | Star head |
| Protection | IP 44 |
| Warranty | 5 years |
Compatible with: LT50 crown and drive sets, LT50 motor brackets, SJTW 4-wire motor cables
Official Somfy documentation
Sold by ShadeMotorsDirect -- an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
Common questions
What torque and speed does the 525A2 deliver?
Somfy rates part 1043424 at 25 Nm of torque and 20 rpm. It is an LT50 standard 4-wire motor with a star head, and Somfy lists awnings and rolling shutters as its applications.
What roller tube does it fit?
Somfy lists a 1.85 in minimum tube internal diameter, a 1.77 in motor body and an unwrapped length of 22.17 in. Pair it with LT50 crown and drive hardware, such as the LT50 2.5" Round Crown and Drive Set (9012231).
How is it powered and wired?
It runs on 120V/60Hz AC with a rated current of 1.6 A and draws 180 W in operation. Its eco design uses 0 W in standby. A 9.84 ft SJTW cable with 4 wires connects it to a wired switch or relay.
How are the limits set, and what is it rated for?
A mechanical limit switch with a 46-turn capacity sets the travel. Somfy rates the motor IP 44, with a working range of 14 °F to 104 °F and a noise level of 56 dB. It carries a 5-year Somfy warranty.
Which motor brackets work with it?
The star head fits the Somfy LT50 Star Head Motor Bracket (9410651) and the LT50 Universal Bracket with Spring Clip (9420631). The Standard Motor Tester Cable, 4-Wire (9012116) lets an installer run the motor before final wiring.
Is there a version with a built-in radio?
Yes. The Somfy Altus RTS 525A2 (1043423) is the 525A2 with an RTS radio receiver built in, ready to pair with Somfy RTS remotes and wall switches. To keep this wired model and add radio control, install a Somfy Universal RTS Receiver (1810627).
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How this motor compares
Verified Somfy specs for this motor and its closest alternatives.
| Specification | You're viewing
Somfy 525A2 120V 4-Wire Motor (1043424)
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Somfy 525A2 Altus RTS 120V Motor (1043423)
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Somfy 520R2 120V 4-Wire Motor (1042055)
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Somfy 530R2 120V 4-Wire Motor (1045793)
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|---|---|---|---|---|
| Price | ||||
| Torque (Nm) | 25.0 | 25.0 | 20.0 | 30.0 |
| Speed (rpm) | 20 | 20 | 14 | 14 |
| Control | Wired 4-wire | RTS radio | Wired 4-wire | Wired 4-wire |
| 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, RTS radio control | 20.0 Nm instead of 25.0 | 30.0 Nm instead of 25.0 |
| Buy | Currently viewing | View details | View details | View details |
