Somfy Maestria 510A2 RTS Motor Fit and Screen Sizing

A zip screen asks more of a motor than an interior roller shade does. Fabric rides in side tracks, wind loads the panel, and the motor holds tension through every cycle. Somfy built the Maestria line for that duty. Reference 1134082, the Maestria RTS 510A2, sits at the 10 Nm point of the range and carries its RTS receiver inside the head.

Screens the Maestria 510A2 drives

Somfy lists two applications for this reference: exterior solar screens and retractable insect screens. Both live outdoors, both run in side channels, and both need a motor that holds the fabric taut at the bottom limit so the seal stays honest.

Installers reach for the 510A2 on narrow and mid-width openings, where 10 Nm covers the rolled fabric weight plus the drag the side tracks add. Heavier panels move up the Maestria range to the 525A2 at 25 Nm or the 550R2 at 50 Nm. Our Somfy motor sizing guide walks the torque calculation with tube diameter and fabric weight, and it is worth running before you commit to a reference.

Verified Somfy specifications

Every figure below comes from Somfy's published record for reference 1134082.

Source: Somfy e-catalog and somfysystems.com product records for reference 1134082.

Tube, crown and drive fit on the LT50 body

Somfy publishes no minimum tube inner diameter for this reference, which puts the decision on the crown and drive set. The 510A2 uses the LT50 body, so the whole LT50 crown and drive catalog opens up to it. A 70mm octagonal tube takes the Somfy Octagonal LT50 70mm Crown and Drive Set, which keys the motor to the tube wall and carries all 10 Nm without slip.

Match the crown and drive to the tube profile already in the headbox. Order the pair together as one part. A crown with no matching drive leaves the motor spinning inside a tube that never turns, and that failure shows up after the fabric is on the roll.

Bracket choice starts with the star head

Somfy publishes head type STAR for 1134082. A star head seats in the Somfy LT50 Star Head Motor Bracket, which holds the head square to the tube and absorbs the reaction torque each time the screen stalls against its limit. Brackets cut for a crank manual override head will not take this motor, and a star bracket will not take a CMO motor either. Check the head shape against the motor in your hand before you drill the side channel.

Exterior work adds one more step. Mount the bracket to structure rather than to the headbox skin, because wind load on a 10 Nm screen reaches the bracket long before it reaches the motor.

RTS control and sun automation

The receiver lives inside the motor, so the 510A2 pairs with any RTS transmitter out of the box and needs no external receiver. A single screen runs from the Somfy Situo 1 Channel RTS Pure Remote. Somfy publishes 12 channels and 656.2 ft of open field range for this reference, which gives a patio installation room to keep the handset where the homeowner sits.

Exterior screens earn their keep on automation. The Somfy Situo 5 Soliris RTS Pure II pairs a sun sensor channel with five screen channels, so the screens drop when the sun lands on the patio and retract when it moves off. Somfy also lists the TaHoma switch as a control path for this motor, which folds the screens into app scenes and voice control next to the rest of a Somfy home.

Setup notes before the tube goes up

Somfy gives the 510A2 electronic limits with a 250 turn capacity. Installers set both limits from an RTS transmitter, with no limit wheel to reach on the head. Hang the tube in its brackets first, then set the limits, and the closed position lands tight against the sill where insect screen duty needs it.

The motor ships with a 9.84 ft SJTW three wire cable. Plan the run to the outlet or junction box before the headbox closes, since that length is what Somfy gives you. Somfy rates the motor IP 44 and Class I, so the ground conductor does real work here and the connection deserves a look at final inspection. Thermal protection cuts in after 4 minutes of continuous run, which suits a screen cycle and rules out bench demo loops.

Ordering the 510A2 and the parts around it

The Somfy Maestria 510A2 RTS Motor (1134082) ships as the motor with its 10 ft pigtail. Add the crown and drive that match your tube, the star head bracket for the drive end, and one RTS transmitter, and the screen runs the day it goes up. Buyers replacing an older Maestria screen motor should confirm torque against the existing reference first, since the 525A2 and 550R2 share the same body and bracket while carrying more torque.

Frequently asked questions

What torque does the Somfy Maestria 510A2 produce?

Somfy publishes 10 Nm at 20 rpm for reference 1134082, which converts to 88 in-lb. That output places it at the entry point of the Maestria range. The 525A2 carries 25 Nm and the 550R2 carries 50 Nm on the same LT50 body, so an installer can step up torque without changing the bracket or the crown and drive.

Which tube fits the Maestria 510A2?

Somfy publishes no minimum tube inner diameter for this reference, so the crown and drive set governs the fit. The 510A2 uses the LT50 body, which means LT50 crown and drive sets cover it. A 70mm octagonal tube takes the 9012234 set. Match the set to the tube profile in the headbox.

Can the Maestria 510A2 respond to a sun sensor?

Yes. The motor holds an RTS receiver in the head, so any RTS sun automation reaches it. The Situo 5 Soliris RTS Pure II adds a sun sensor channel next to five screen channels. Somfy also lists the TaHoma switch for this reference, which brings scheduled and app driven screen scenes to the same motor.

Does the Maestria 510A2 need an external RTS receiver?

No. Somfy builds the RTS receiver into the motor head, and the published record lists 12 channels with 656.2 ft of open field range. Pair a transmitter to the motor and the screen answers it. The three wire SJTW cable carries line power only, with no control conductor to run back to a switch.

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