Somfy 525A2 25/20 SJTW
Part no. 1043424
by 
Somfy
525A2 25/20 SJTW is a tubular motor made by Somfy.
Sources: 2 manufacturer documents · Last verified 2026-10-07 · How we collect data →
Overview
Key specs
- Torque
- 25 Nm
- Rated speed
- 20 rpm
- Rated voltage
- 120 V
- IP rating
- IP44
Fit and application
- Category
- Roller Shutter Motor
525A2 25/20 SJTW is a tubular motor made by Somfy. Sourced specifications: torque 25 Nm; rated speed 20 rpm; rated voltage 120 V; power supply type AC mains. Among 1474 listed tubular motors products with a sourced torque, most values range from 2 to 140 Nm; this product's 25 Nm is in the middle half. Among 1279 listed tubular motors products with a sourced rated speed, most values range from 9 to 35 rpm; this product's 20 rpm is in the upper quartile.
Composed from 9 sourced facts
- 525A2 25/20 SJTW — Product record
- Somfy — Company record
- Tubular motors — Category tree
- Torque: 25 Nm — Somfy PDF catalogue lt50ra-d0025.pdf
- Rated speed: 20 rpm — Somfy PDF catalogue lt50ra-d0025.pdf
- Rated voltage: 120 V — Somfy PDF catalogue lt50ra-d0025.pdf
- Power supply type: AC mains — Somfy PDF catalogue lt50ra-d0025.pdf
- Among 1474 listed tubular motors products with a sourced torque, most values range from 2 to 140 Nm; this product's 25 Nm is in the middle half. — Catalogue statistics
- Among 1279 listed tubular motors products with a sourced rated speed, most values range from 9 to 35 rpm; this product's 20 rpm is in the upper quartile. — Catalogue statistics
Specifications
Identity & lineage
- Part number
- 1043424
- Product page
- Manufacturer page ↗
Show 8 fields not published by the manufacturer
| Specification | Value |
|---|---|
| Series / product line | — |
| Variant suffix | — |
| GTIN / EAN | — |
| Lifecycle status (manufacturer) | — |
| Replaces part number | — |
| Replaces model | — |
| White-label of | — |
| Market variant | — |
Electrical
| Specification | Value |
|---|---|
| Rated voltage | 120 V |
| Mains frequency | 60 Hz |
| Power supply type | AC mains |
| Rated power input | 180 W |
| Standby power | 0 W |
| Rated current | 1.6 A |
| Cable length | 2 m |
Show 9 fields not published by the manufacturer
| Specification | Value |
|---|---|
| Supply voltage (min) | — |
| Supply voltage (max) | — |
| Supply rating (as stated) | — |
| Power factor (cos φ) | — |
| Inrush current factor | — |
| Protection class (electrical) | — |
| Cable connection | — |
| Cable type | — |
| Cable brand | — |
Drive performance
| Specification | Value |
|---|---|
| Rated torque | 25 Nm |
| Rated speed | 20 rpm |
| Short-time duty (S2) | 5 min |
Show 6 fields not published by the manufacturer
| Specification | Value |
|---|---|
| Peak torque | — |
| Speed range (min) | — |
| Speed range (max) | — |
| Duty type | — |
| Max load | — |
| Rated life | — |
Dimensions & mounting
Show 8 fields not published by the manufacturer
| Specification | Value |
|---|---|
| Motor diameter | — |
| Fits tube diameter | — |
| Overall length | — |
| Weight | — |
| Compatible tube profiles | — |
| Motor head type | — |
| Mounting side | — |
| Max shade width | — |
Limits & protection
Show 8 fields not published by the manufacturer
| Specification | Value |
|---|---|
| Limit setting | — |
| Limit range | — |
| Intermediate positions | — |
| Obstacle detection | — |
| Manual override | — |
| Soft start / soft stop | — |
| Thermal protection | — |
| Noiseless soft brake | — |
Control & communication
Show 11 fields not published by the manufacturer
| Specification | Value |
|---|---|
| Control protocol | — |
| Control interface (as stated) | — |
| Radio frequency | — |
| Modulation | — |
| Radio range | — |
| Two-way feedback | — |
| Max paired transmitters | — |
| Wired inputs | — |
| Works with | — |
| Sensor inputs | — |
| Timer / astro | — |
Environment & protection
| Specification | Value |
|---|---|
| IP rating | IP44 |
| Operating temp. (min) | -10 °C |
| Operating temp. (max) | 60 °C |
| Noise level | 56 dB(A) |
Show 3 fields not published by the manufacturer
| Specification | Value |
|---|---|
| Ambient humidity | — |
| Storage temp. (min) | — |
| Storage temp. (max) | — |
Application
Show 1 field not published by the manufacturer
| Specification | Value |
|---|---|
| Applications | — |
Compliance & declarations
Show 3 fields not published by the manufacturer
| Specification | Value |
|---|---|
| Marks stated by vendor | — |
| Declared standards | — |
| Carbon footprint (PEP/EPD) | — |
Appearance
Show 1 field not published by the manufacturer
| Specification | Value |
|---|---|
| Colour / finish | — |
Source: Somfy PDF catalogue (Manufacturer-stated), Somfy Systems (North America) manufacturer site (Manufacturer-stated). Last checked 2026-10-07. All sources (2) · Learn more about this data
Documents
- 500 Series Databook_2022.05.16Brochure ↗
- LT50_RA-D0025Brochure ↗
- LT50 RA Spec Sheet D-0025Official datasheet (PDF) ↗
- Manufacturer product page ↗
- SOMF-00023-V05.01-EN_LT50 RABrochure ↗
Replacements
Current models named as replacements by the manufacturer, or with similar published specifications.
Replacement suggestions compare published specifications. They do not guarantee fit or compatibility. Check the motor head, crown and drive adapters, brackets, wiring and remote pairing with the manufacturer or a qualified installer before ordering. Mains-powered motors must be connected by a qualified electrician.
Not enough data to match by specification
A required value (torque, speed, diameter or supply) is missing, so the motor cannot be compared by specification.
- The manufacturer does not publish the diameter for this model.
Cross-brand alternatives (spec-equivalent)
| Model | Brand | Torque | Speed | Rated voltage |
|---|---|---|---|---|
| Wistar motor WSM50 · 20 Nm · 21 rpm | Wistar motor | 20 Nm (−20%) | 21 rpm (+5%) | 120 V (same) |
| Wistar motor WSM50 · 30 Nm · 21 rpm | Wistar motor | 30 Nm (+20%) | 21 rpm (+5%) | 120 V (same) |
| Nice Era M 3017 KIT | Nice | 30 Nm (+20%) | 17 rpm (−15%) | — |
| Nice TG M 3017 | Nice | 30 Nm (+20%) | 17 rpm (−15%) | — |
Matched on torque, speed and diameter within 25%. Methodology →
| Model | Torque | Speed | Rated voltage |
|---|---|---|---|
| Somfy Roll Up Wired R28 (Pin Mount) | 0.8 Nm (−97%) | 30 rpm (+50%) | 24 V (−80%) |
| Somfy Roll Up Wired R28 (Ear Mount) | 0.8 Nm (−97%) | 30 rpm (+50%) | 24 V (−80%) |
| Somfy Roll Up Wired R28 (Starhole Mount) | 0.8 Nm (−97%) | 30 rpm (+50%) | 24 V (−80%) |
| Somfy Roll Up 28 · 1.1 Nm · 20 rpm | 1.1 Nm (−96%) | 20 rpm (same) | 12 V (−90%) |
| Somfy Roll Up 28 · 1.1 Nm · 28 rpm | 1.1 Nm (−96%) | 28 rpm (+40%) | 12 V (−90%) |
| Somfy Sonesse® ULTRA 30 WireFree RTS (Li-ion) | 2 Nm (−92%) | 20 rpm (same) | 12 V (−90%) |
| Somfy Sonesse 40 PoE at 2/25 Type 2 (30W) | 2 Nm (−92%) | 25 rpm (+25%) | 48 V (−60%) |
| Somfy Sonesse 30 · 2 Nm · 28 rpm | 2 Nm (−92%) | 28 rpm (+40%) | 24 V (−80%) |
| Model | Torque | Speed | Rated voltage |
|---|---|---|---|
| Somfy 506S2 6/38 SJTW | 6 Nm (−76%) | 38 rpm (+90%) | 120 V (same) |
| Somfy 510R2 10/14 SJTW | 10 Nm (−60%) | 14 rpm (−30%) | 120 V (same) |
| Somfy 510S2 10/38 SJTW | 10 Nm (−60%) | 38 rpm (+90%) | 120 V (same) |
| Somfy 515S2 RS485 | 15 Nm (−40%) | — | 120 V (same) |
| Somfy 515S2 15/38 RH SJTW | 15 Nm (−40%) | 38 rpm (+90%) | 120 V (same) |
| Somfy 515S2 15/38 SJTW | 15 Nm (−40%) | 38 rpm (+90%) | 120 V (same) |
| Somfy 515A2 15/20 SJTW | 15 Nm (−40%) | 20 rpm (same) | 120 V (same) |
| Somfy 520R2 20/14 SJTW | 20 Nm (−20%) | 14 rpm (−30%) | 120 V (same) |
Compare systems & lineage
Sources
- ↑Somfy PDF catalogue lt50ra-d0025service.somfy.comRated voltage: Voltage Supply: 120V AC, 60Hz [1043024] (p. 1)Used for: Rated voltage, Mains frequency, Power supply type, Rated current, Cable length, Rated torque, Rated speed, Short-time duty (S2), IP rating, Operating temp. (min), Operating temp. (max)
- ↑Somfy Systems (North America) manufacturer site (product catalog)somfysystems.comRated power input: Consumption during operation 180 WUsed for: Rated power input, Standby power, Noise level
Compiled from manufacturer publications and public registries. Confirm critical specifications with the manufacturer before ordering.
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