Somfy Simu T5 35 Nm Wired Shutter Motor Fit and Specs

Installers reach for the Simu T5 35Nm 18rpm 120V (2000648) after they weigh the curtain. Somfy publishes this reference as a wired tubular motor rated 35 Nm at 18 rpm on 120V/60Hz power. Torque drives the pick. A wide aluminum rolling shutter, a tall exterior solar screen, a lateral arm awning with long projection, or a storefront shutter box all load the tube past what the lighter T5 steps carry.

Pick 35 Nm when the curtain outgrows the lighter T5 steps

Somfy builds the wired T5 line in torque bands. The installer matches a band to curtain weight and tube size rather than guessing at a single catch-all motor. 35 Nm sits in the upper middle of that range, above the 25 Nm operator and under the 50 Nm. Crews pick it for shutters that run wide enough to add slat mass fast, and for awning fabric that gains weight across a long projection.

Speed matters on the same decision. At 18 rpm the tube turns at a pace that suits a tall shutter without rushing the slats into the guide rails. The 35 Nm motor holds that 18 rpm figure, so a crew replacing a 25 Nm operator at the same speed keeps the travel time the building occupants already know.

The shutters and shades this motor drives

Somfy lists four applications for reference 2000648: awnings, exterior solar screens, interior window coverings, and rolling shutters. The motor carries no radio receiver. The installer wires it to a switch or to a dry contact controller, which suits new construction where the electrician pulls cable to every opening. It suits a retrofit as well. After a Simu T5 operator fails with the wall switch and cable still sound, the crew swaps the motor and leaves the rest of the install alone.

Shops that service Simu shutter boxes keep this torque step on the shelf for that reason. The bracket, the crown and the drive wheel from the old motor seat the new one.

Verified specs for reference 2000648

Tube, crown and drive wheel fit

The motor body measures 1.97 in across, so tube inner diameter sets the floor on fitment. Measure the tube inside with a caliper before ordering. An outside measurement on a shutter tube hides the wall thickness and leads a crew to a crown that will not pass.

Somfy pairs the T5 with its own aluminum drive wheels and with the LT50 crown and drive sets. Four of those parts cover most shutter and awning tube on North American jobs. The T5/T6 60mm round aluminum drive seats in round 60 mm tube. The T5/T6 70mm octagonal aluminum drive handles the 70 mm octagonal profile that European-style shutter tube uses. For the larger Simbac profile, order the Simu T5/T6 85mm round Simbac drive. Each one pairs with the matching crown at the idler end so the tube rides true.

Somfy also lists LT50 crowns and drives against this motor, which gives a shop a second route when a job carries LT50-profile tube. Order the crown and the drive as a pair from the same profile. Mixing a 60 mm crown with a 70 mm drive racks the tube and the motor fights that misalignment on every cycle.

Bracket, head mounting and wiring

The 2000648 carries a round head with pins. That head drops into Simu T5 operator brackets, and the Simu T5 operator bracket 80mm x 80mm square (9520049) is the one most shutter boxes take. Square boxes of that dimension accept it on the face or on the side wall. Check the clear depth in the box before the order goes out, since a bracket that fits the opening still needs room behind it for the motor head and the cable exit.

Fasten the bracket to structure, not to the shutter box skin. A shutter curtain at 35 Nm puts real load into the mounting point, and sheet metal alone works loose over a few seasons of cycling.

Somfy supplies the motor with 8.2 ft of 4-wire VVF cable in white. The four conductors give the installer live up, live down, neutral and ground. Class I insulation means the ground connection carries a job, so bond it. The motor draws 2.1 A and consumes 250 W while it runs, and it falls to 0 W at rest, which keeps a multi-opening install inside a standard branch circuit.

Control stays wired end to end. A momentary or maintained wall switch runs one motor. A dry contact relay interface runs a bank of openings from a building system or a timer. This reference holds no radio receiver, so RTS and Zigbee remotes have nothing to talk to here. Shops that want radio control on a wired T5 put a Somfy radio receiver upstream of the motor and keep the motor itself on its 4-wire feed.

IP 44 protection covers the motor against splashing water and solid objects over 1 mm. That rating fits a shutter box or an awning headbox with weather protection above it. Keep the cable gland and the junction out of standing water.

Limits, site checks and what to order with it

Mechanical limit switches set the up and down stops on this motor. The installer dials them at the motor head with the adjustment screws, then runs the tube through a full cycle under no load. Set the stops before the curtain gets fastened to the tube. Resetting a limit with a loaded curtain costs a crew more time than it saves.

Two checks earn their minute on site. Confirm the motor spins the direction the switch calls for, since a reversed pair of live conductors sends the curtain the wrong way on the first press. Then confirm the drive wheel seats to its stop and the drive stop screw holds, because a drive that creeps on the shaft loses the limit positions a week later.

The Somfy Simu T5 35Nm 18rpm 120V (2000648) ships as the motor with its 8.2 ft cable. A complete job needs the bracket and the crown and drive set for the tube on hand. Most crews order the 80mm x 80mm square operator bracket alongside it, then add the drive that matches the tube profile they measured.

Common questions about the Simu T5 35 Nm motor

What tube does the Simu T5 35 Nm motor fit?

The motor body measures 1.97 in across, so the tube inner diameter has to clear that. Somfy lists T5/T6 drives at 60 mm round, 70 mm octagonal and 85 mm Simbac for this reference, plus LT50-profile crown and drive sets. Measure the tube inside before ordering, and pair the crown and drive from the same profile.

Does the Simu T5 35Nm 18rpm work with RTS remotes?

No. Somfy builds reference 2000648 as a wired motor with no radio receiver inside it, and the four conductors carry live up, live down, neutral and ground. Control comes from a wall switch or a dry contact interface. A shop that wants radio control adds a Somfy radio receiver ahead of the motor on the supply side.

How much power does the T5 35 Nm draw?

Somfy publishes 250 W while the motor runs and 0 W at rest, with a rated current of 2.1 A on 120V/60Hz power. The zero standby figure matters on a bank of shutters, since a dozen wired motors add nothing to the load between cycles. Class I insulation calls for a bonded ground at the junction.

Which Somfy motor replaces a failed Simu T5 operator?

Match the torque and the speed stamped on the old motor. A 35 Nm operator at 18 rpm takes reference 2000648 as a like-for-like swap, and the existing bracket, crown and drive wheel seat the new motor. Somfy carries the wired T5 in other torque steps for curtains that changed weight since the first install.

Shade Motors Direct is an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.