Tube diameter and curtain weight set this spec
A 94mm tube narrows the motor list fast. Somfy builds the Simu T8 as an axial tubular operator for that tube class, and reference 2004248 carries 200 Nm at 10 rpm on standard 120V power. Installers reach for it once a rolling steel grille or an insulated commercial door outgrows a 50mm or 60mm tubular motor. Weigh the curtain first. Measure the tube second. Those two figures decide whether 200 Nm sits at the right rung of the Simu ladder, because Somfy also publishes 280 Nm versions of the same platform for heavier closures.
Shade Motors Direct stocks the Somfy Simu T8 200Nm Diameter 94mm 10rpm 120V (2004248) as a wired motor with no radio receiver inside the tube. An electrician brings 120V to a switch, key switch or relay output, and the motor takes travel limits at its own head.
Commercial closures the T8 carries
Somfy publishes two applications for this reference: industrial and commercial closure, and rolling shutter. Read that as storefront security grilles, warehouse rolling doors, loading-dock shutters and insulated slat curtains. A 200 Nm rating covers the mass of a steel curtain plus the drag of guides that have taken a decade of traffic.
The T8 does not belong on interior shades or awnings. Those jobs sit with the 40mm and 50mm Sonesse and LT ranges, where torque runs from 4 Nm to 50 Nm and the head hardware matches a shade bracket. Specifiers who put a T8 on a light curtain end up with a motor that overpowers the tube and a budget that overshoots the job. Match the platform to the closure.
Verified specs for the Simu T8 2004248
Somfy publishes the figures below for reference 2004248. Treat the operating power and the current draw as the two numbers an electrician needs before pulling a circuit.
| Torque / speed | 200 Nm / 10 rpm |
| Power supply | AC RGE 2, 120V / 60Hz |
| Rated current | 5.3 A |
| Operating power | 620 W |
| Standby power | 0 W |
| Operator type | Axial tubular, wired |
| Control | 4-wire, no built-in receiver |
| Limit switch capacity | 17 turns |
| Tube diameter | 94mm |
| Thermal protection | 4 min |
| Protection rating | IP 44, Class I |
| Operating temperature | 41°F to 104°F |
| Applications | Industrial and commercial closures, rolling shutters |
| Warranty | 5 years |
Zero standby draw matters on a building with forty shutters on one panel. The motor pulls 620 W while it runs and nothing once the curtain parks.
Tube, drive and bracket parts that seat on a 94mm T8
Somfy builds the drive and crown hardware for this platform around the tube profile, not the motor reference. The 94mm round drive, part 9001297, carries the T8 range from 200 Nm through 280 Nm, so one drive covers both torque steps. Somfy also publishes 97mm and 124mm round sets for installers who inherit a larger tube and want to keep the same motor.
Mounting runs through the T8 2-piece angle bracket set, part 9001413. Somfy pairs that set with the T6, T8 and T9 side wall plates on jobs where the shutter box has a flat steel face rather than a formed channel. Check the box depth before ordering. A 94mm motor plus a drive plus a bracket needs more clearance than a 50mm shade motor, and retrofits are where that measurement bites.
Idle-end inserts match the tube the same way. Somfy lists a 94mm idle insert and a 97mm insert, and an installer picks by the tube on the roll rather than by the motor on the order.
Wired control and the safety brake question
The 2004248 takes 4-wire control. An installer wires the two travel conductors through a momentary or maintained switch and leaves the neutral and ground straight to the motor. Nothing inside the tube listens for a radio signal, so RTS remotes and Zigbee hubs play no part on this reference. Specifiers who want handheld or app control put an external RTS or wired-input receiver ahead of the motor on the 120V side.
Heavy closures bring a second question. A curtain that weighs enough to free-fall needs a mechanical brake in the tube, and Somfy publishes a brake range for the Simu platform. The Somfy Simu Safety Brake 404Nm Torque (2005627) suits lighter steel curtains on this motor, and the Somfy Simu Safety Brake M10A, 1000 Nm Torque (2005629) steps up for a heavy insulated slat door. Size the brake against the curtain, not against the motor torque. A brake that trips late does nothing for the people standing under the opening.
Install notes an installer asks about
Four points come up on every T8 commissioning visit.
- Limit range. The 17-turn capacity caps the travel. A 94mm tube at 10 rpm covers a tall door inside that window, and an installer should count turns on the tube before cutting the curtain rather than after.
- Bench test before the tube goes up. The Somfy Standard Motor Tester Cable, 4-Wire (9012116) drives the motor off a wall outlet so the technician confirms rotation direction and sets rough limits on the bench. That one cable saves a trip up the lift.
- Thermal cycle. The 4-minute thermal rating sets the duty. A T8 moves a long door, pauses, and moves again. Continuous cycling trips the thermal cutout and the motor sits until it cools.
- Temperature window. Somfy rates the operating range from 41°F to 104°F. An unheated loading dock in a northern winter sits below that floor, and the specifier should raise it with Somfy before committing the motor.
Direction of rotation catches people out on retrofits. A wired motor has no software reverse, so an installer swaps the two travel conductors at the switch to flip travel. Do it at the switch, not at the motor head.
Buyers who land on this reference usually have the tube already. The Simu T8 200Nm Diameter 94mm 10rpm 120V (2004248) ships as the motor, and the drive, bracket and brake come separately so a specifier matches each one to the closure in front of them. Somfy backs the motor for five years.
Pair the motor with a safety brake sized to the curtain and a tester cable for commissioning. Order the 94mm round drive and the T8 angle bracket set alongside, and the crate holds everything a crew needs for one opening. Call with the curtain weight and the tube profile and the parts list writes itself.
Frequently asked questions
What tube does the Somfy Simu T8 2004248 fit?
Somfy builds this reference for 94mm tube. The 94mm round drive, part 9001297, carries the T8 from 200 Nm through 280 Nm. Somfy also publishes 97mm and 124mm round sets, so an installer with a larger tube on the roll can keep the same motor and change the drive hardware.
Does the Simu T8 200Nm work with RTS remotes?
The 2004248 carries no receiver inside the tube. It takes 4-wire control from a switch, key switch or relay output. A specifier who wants remote or app control adds an external receiver on the 120V side ahead of the motor, and the motor itself stays wired.
How much power does the Simu T8 200Nm draw?
Somfy publishes 620 W during operation at 5.3 A on 120V, 60Hz, with 0 W standby. An electrician sizes the branch circuit from the running figure and the number of motors on the panel. Zero standby draw keeps the idle load off a building with many shutters.
Does a Simu T8 need a safety brake?
Heavy steel and insulated curtains need one. Somfy publishes a brake range for this platform, and the 404 Nm 2005627 and 1000 Nm 2005629 units cover the common weights on a 94mm tube. Size the brake against the curtain mass rather than against motor torque, and confirm the choice with Somfy on tall openings.
Shade Motors Direct is an authorized source for genuine Somfy motorized window shade, blind, and drapery parts.
