Torque sizing decides this purchase. A rolling shutter curtain on a 60 mm octagonal tube pulls harder than a small exterior screen, and the Simu T5 25Nm 18rpm 120V (2000647) sits where installers stop guessing and start matching a rated figure to a measured load. Somfy rates this operator at 25 Nm of torque and 18 rpm, wired, on ordinary 120V/60Hz power.
Shade Motors Direct stocks it as a genuine Somfy part under ref 2000647.
Picking 25 Nm on the Simu T5 ladder
Somfy builds the Simu T5 standard operator in a torque range that climbs from 10 Nm to 50 Nm, and every rung carries its own speed. The 25 Nm version turns at 18 rpm. That pairing suits a mid-weight shutter or a mid-size awning where the installer wants travel to finish without a long wait.
Installers who size a motor by curtain weight and tube radius land on 25 Nm for a large share of residential rolling shutters. Drop below the rated figure and the motor labors against the load, then trips its thermal cutout. Oversize the motor and the shutter rail takes a harder shove at every start. Match the rating to the calculated load and the operator runs inside its design window for years.
Speed matters on tall openings. The 18 rpm rating puts this operator above the 12 rpm versions Somfy builds at higher torque, so a tall shutter finishes its drop sooner on the same tube. Travel rate also climbs as the roll builds diameter.
The shutters and shades this operator drives
Somfy publishes four applications for ref 2000647: awnings, exterior solar screens, interior window coverings, and rolling shutters. The breadth comes from the T5 platform rather than from this one torque rating. One motor body, one head pattern, and a tube drive chosen to suit the application.
Exterior work drives the IP 44 rating. Somfy builds the T5 to sit inside a shutter box or an awning hood where water reaches the housing as spray rather than as immersion. Class I insulation means the installer bonds the ground conductor at the switch or junction box.
Interior shade builders reach for the T5 when a roller runs on a wired switch with no radio in the system. Commercial corridors and municipal buildings still run wired control panels, and the T5 drops into that wiring with no receiver and no pairing step.
Verified specs for ref 2000647
| Specification | Figure |
|---|---|
| Somfy reference | 2000647 |
| Somfy product name | T5 25Nm 18rpm 120V |
| Model designation | MOTOR T5-25NM/18RPM-120/60-C2,5M WHITE |
| Torque | 25 Nm (221 in-lb) |
| Speed | 18 rpm |
| Power supply | 120V / 60Hz AC |
| Rated current | 1.6 A |
| Power consumption | 180 W running, 0 W standby |
| Sound level | 56 dB |
| Protection index | IP 44 |
| Insulation class | Class I |
| Control | Wired, 4-wire, no radio receiver |
| Limit switches | Mechanical, 30 turns |
| Head type | Round head with pins |
| Overall diameter | 1.97 in |
| Cable | 8.2 ft, 4-conductor VVF, white |
| Operating temperature | -4 F to 140 F |
| Applications | Awnings, exterior solar screens, interior window coverings, rolling shutters |
| Warranty | 5 years |
Somfy prints 180 W during operation and 0 W in standby for this ref. The zero standby figure follows from the wiring: a 4-wire motor draws nothing between commands because the switch cuts power at the up and down conductors.
Tube, crown, drive and bracket fit
The motor body measures 1.97 in across, so the tube has to clear that diameter plus the crown. Somfy pairs the T5 with its own aluminum drive wheels and with the LT50 crown and drive family, and the tube profile picks the set.
Round 60 mm tube takes the T5/T6 60mm round aluminum drive (9012950). Octagonal 70 mm tube takes the T5/T6 70mm octagonal aluminum drive (9011878). Simbac tube at 85 mm takes the Simu T5/T6 85mm round Simbac drive wheel (9420300).
Each drive wheel keys to the motor output shaft and rides inside the tube wall. Fit the drive first, then slide the assembled motor into the tube and check that the head still clears the bracket plate. A drive that spins inside the tube costs the installer a second trip, so most crews add a drive stop and screw through the tube wall at the drive.
Order the crown and the drive together. The crown carries the motor body at the head end and the drive transmits rotation, and a tube needs both parts seated before the shutter hangs true.
The 2000647 carries a round head with pins. Those pins drop into a matching slot in the operator bracket and hold the motor body against rotation while the tube turns around it. The Simu T5 operator bracket 80mm x 80mm square (9520049) gives that seat on a square plate that bolts to the shutter box cheek.
Measure the box before ordering a bracket. The 80 mm square plate needs a flat landing with clearance for the cable to exit below the head, and a tight box forces a different plate pattern. Shutter boxes built for a 40 mm motor leave no room for a 1.97 in body.
Wiring and limit setup
Four conductors leave the head on an 8.2 ft white VVF lead: line up, line down, neutral, and ground. The installer wires up and down to a momentary or maintained rocker switch and bonds ground at the box. No receiver sits in this motor, so a radio remote will not reach it without a separate Somfy RTS receiver wired ahead of the motor.
Limits run mechanical on this operator, with 30 turns of capacity. The installer sets them with the two adjustment screws on the head, counting turns against the shutter position. Mechanical limits hold their setting through a power cut and need no re-teach after an outage. They also cap total travel at 30 turns of the tube, which sets the ceiling on shutter drop for a given tube diameter.
Thermal protection shuts the motor down when a cycle runs past its duty rating. Let the head cool, then check the load calculation before the next run.
Order the 2000647 and the parts around it
The Somfy Simu T5 25Nm 18rpm 120V (2000647) ships as the bare operator with its 8.2 ft lead. Plan the bracket and the tube hardware alongside it. Most 25 Nm shutter builds leave with the motor, the 9520049 bracket, a drive wheel matched to the tube profile, and a drive stop.
Builders replacing a failed T5 of the same rating reuse the existing bracket and drive when both parts measure clean. Check the drive wheel for a rounded key and the bracket slot for wear at the pin seats before putting a new motor into old hardware.
Frequently asked questions
What torque does the Somfy 2000647 produce?
Somfy rates ref 2000647 at 25 Nm, which converts to 221 in-lb, at a speed of 18 rpm. The motor runs on 120V/60Hz AC, draws 1.6 A, and consumes 180 W during operation with 0 W in standby. Those figures come from Somfy's own published data for this reference.
Which tube sizes fit the Simu T5 25 Nm motor?
The motor body measures 1.97 in across, and the tube choice follows the drive wheel. Somfy builds a 60 mm round drive (9012950) and a 70 mm octagonal drive (9011878) for the T5, plus an 85 mm Simbac drive (9420300) and the LT50 crown and drive sets. Match the drive to the tube profile already on the shade.
Will a Somfy RTS remote control this motor?
Ref 2000647 carries no radio receiver. Somfy builds it as a 4-wire operator for switch control. Adding an external Somfy RTS receiver on the supply side of the motor brings remote control to the installation, and the receiver handles the pairing.
How many turns do the limit switches allow?
Mechanical limit switches on this operator cover 30 turns of tube travel. The installer sets upper and lower stops with the adjustment screws on the motor head. Mechanical limits keep their setting through a power outage, so a shutter returns to the same stops after power comes back.
Shade Motors Direct is an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
