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Last verified: 2026-10-09

Verifiable indicators

Short-time duty (S2) — Somfy 510S2 10/38 SJTW: 5 min^{[2; 2026-10-07]}; Wistar motor WSS50 · 10 Nm · 34 rpm: 4 min^{[1; 2026-10-01]}; Wistar motor WSM50 · 10 Nm · 33 rpm: 4 min^{[1; 2026-10-01]}. Elero RolTop M Fast running version · 9 Nm · 35 rpm: Not published.

Rated life — Somfy 510S2 10/38 SJTW: Not published. Wistar motor WSS50 · 10 Nm · 34 rpm: Not published. Wistar motor WSM50 · 10 Nm · 33 rpm: Not published. Elero RolTop M Fast running version · 9 Nm · 35 rpm: Not published.

Thermal protection — Somfy 510S2 10/38 SJTW: Not published. Wistar motor WSS50 · 10 Nm · 34 rpm: Not published. Wistar motor WSM50 · 10 Nm · 33 rpm: Not published. Elero RolTop M Fast running version · 9 Nm · 35 rpm: Not published.

IP rating — Somfy 510S2 10/38 SJTW: IP44^{[2; 2026-10-07]}; Wistar motor WSM50 · 10 Nm · 33 rpm: IP44^{[1; 2026-10-01]}. Wistar motor WSS50 · 10 Nm · 34 rpm: Not published. Elero RolTop M Fast running version · 9 Nm · 35 rpm: Not published.

Comparison table
Property	Somfy 510S2 10/38 SJTWSomfy1038171	Wistar motor WSS50 · 10 Nm · 34 rpmWistar motorWSS50-10/33	Wistar motor WSM50 · 10 Nm · 33 rpmWistar motorWSM50-10/33	Elero RolTop M Fast running version · 9 Nm · 35 rpmElero34 247.0001
Series & variant axes
SeriesDiffers: LT50 vs WSS50 vs WSM50 vs RolTop M Fast running version	LT50	WSS50	WSM50	RolTop M Fast running version
Identity & lineage
Series / product lineDiffers: Not published vs WSS50^{[1; 2026-10-01]} vs WSM50^{[1; 2026-10-01]} vs Not published	Not published	WSS50^{[1; 2026-10-01]}	WSM50^{[1; 2026-10-01]}	Not published
Electrical
Rated voltage	120 V^{[2; 2026-10-07]}	120 V^{[1; 2026-10-01]}	120 V^{[1; 2026-10-01]}	Not published
Mains frequency	60 Hz^{[2; 2026-10-07]}	60 Hz^{[1; 2026-10-01]}	60 Hz^{[1; 2026-10-01]}	Not published
Power supply type	AC mains^{[2; 2026-10-07]}	AC mains^{[1; 2026-10-01]}	AC mains^{[1; 2026-10-01]}	Not published
Rated power inputDiffers: 150 W^{[3; 2026-09-30]} vs 186 W^{[1; 2026-10-01]} vs 186 W^{[1; 2026-10-01]} vs Not published	150 W^{[3; 2026-09-30]}	186 W^{[1; 2026-10-01]}	186 W^{[1; 2026-10-01]}	Not published
Standby power	0 W^{[3; 2026-10-01]}	Not published	Not published	Not published
Rated currentDiffers: 1.3 A^{[2; 2026-10-07]} vs 1.6 A^{[1; 2026-10-01]} vs 1.6 A^{[1; 2026-10-01]} vs Not published	1.3 A^{[2; 2026-10-07]}	1.6 A^{[1; 2026-10-01]}	1.6 A^{[1; 2026-10-01]}	Not published
Cable length	2 m^{[2; 2026-10-07]}	Not published	Not published	Not published
Drive performance
Rated torqueDiffers: 10 Nm^{[2; 2026-10-07]} vs 10 Nm^{[1; 2026-10-01]} vs 10 Nm^{[1; 2026-10-01]} vs 9 Nm^{[4; 2026-09-23]}	10 Nm^{[2; 2026-10-07]}	10 Nm^{[1; 2026-10-01]}	10 Nm^{[1; 2026-10-01]}	9 Nm^{[4; 2026-09-23]}
Rated speedDiffers: 38 rpm^{[2; 2026-10-07]} vs 34 rpm^{[1; 2026-10-01]} vs 33 rpm^{[1; 2026-10-01]} vs 35 rpm^{[4; 2026-09-23]}	38 rpm^{[2; 2026-10-07]}	34 rpm^{[1; 2026-10-01]}	33 rpm^{[1; 2026-10-01]}	35 rpm^{[4; 2026-09-23]}
Short-time duty (S2)Differs: 5 min^{[2; 2026-10-07]} vs 4 min^{[1; 2026-10-01]} vs 4 min^{[1; 2026-10-01]} vs Not published	5 min^{[2; 2026-10-07]}Highest stated	4 min^{[1; 2026-10-01]}	4 min^{[1; 2026-10-01]}	Not published
Dimensions & mounting
Motor diameter	Not published	45 mm^{[1; 2026-10-01]}	45 mm^{[1; 2026-10-01]}	45 mm^{[5; 2026-10-09]}
Fits tube diameter	Not published	Not published	Not published	≥ 50 mm^{[4; 2026-10-01]}
Overall length	Not published	—	630 mm^{[1; 2026-10-01]}	Not published
WeightDiffers: Not published vs 2.25 kg^{[1; 2026-10-01]} vs 2.95 kg^{[1; 2026-10-01]} vs Not published	Not published	2.25 kg^{[1; 2026-10-01]}	2.95 kg^{[1; 2026-10-01]}	Not published
Limits & protection
Limit settingDiffers: Not published vs Mechanical^{[1; 2026-10-01]} vs Mechanical^{[1; 2026-10-01]} vs Electronic^{[4; 2026-10-01]}	Not published	Mechanical^{[1; 2026-10-01]}	Mechanical^{[1; 2026-10-01]}	Electronic^{[4; 2026-10-01]}
Limit range	Not published	—	27 turns^{[1; 2026-10-01]}	Not published
Control & communication
Control interface (as stated)	Not published	Not published	Not published	Hardwired^{[4; 2026-10-01]}
Environment & protection
IP rating	IP44^{[2; 2026-10-07]}	Not published	IP44^{[1; 2026-10-01]}	Not published
Operating temp. (min)	-10 °C^{[2; 2026-10-07]}	Not published	Not published	Not published
Operating temp. (max)	60 °C^{[2; 2026-10-07]}	Not published	Not published	Not published
Noise level	56 dB(A)^{[2; 2026-10-07]}	Not published	Not published	Not published
Application
Applications	Not published	Not published	Not published	Roller blind^{[4; 2026-10-05]}, Screen^{[4; 2026-10-01]}
Documents	Official datasheet ↗	Request datasheet	Request datasheet	Request datasheet

— means no value: the manufacturer does not publish it, it does not apply to this product type, or there is none on record. Value states

Data gaps

Wistar motor WSS50 · 10 Nm · 34 rpm: Overall length — Not yet collected
Wistar motor WSS50 · 10 Nm · 34 rpm: Limit range — Not yet collected

Sources

↑Wistar motor manufacturer site (product catalog)wistarmotor.comSeries / product line: Ref: WSS50Manufacturer-stated · Observed 2026-10-01 · Retrieved 2026-10-01 · Public web pageUsed for: 20051, 15101, 20046, 15088, 20050, 15099, 20042, 15083, 20045, 15087, 20047, 15089, 20038, 15081, 20040, 15082, 20048, 15091, 20043, 15085, 15093, 20049, 15097, 20052, 15103, 15095, 15084
↑Somfy PDF catalogue lt50ra-d0025service.somfy.comRated voltage: Voltage Supply: 120V AC, 60Hz [1037036] (p. 1)Manufacturer-stated · Observed 2026-10-07 · Retrieved 2026-10-06 · Public web pageUsed for: 51086, 51088, 51087, 51094, 51092, 51093, 51095, 51096, 51089, 51090, 51091, 51097
↑Somfy Systems (North America) manufacturer site (product catalog)somfysystems.comRated power input: Consumption during operation 150 WManufacturer-stated · Observed 2026-09-30 · Retrieved 2026-09-30 · Public web pageUsed for: 4490, 10542
↑Elero manufacturer site (product catalog)elero.comRated torque: 9 NmManufacturer-stated · Observed 2026-09-23 · Retrieved 2026-09-23 · Public web pageUsed for: 2041, 2042, 27454, 27453, 27451, 49053, 27452
↑Tubular diameter derivation tdia-elero-catalog-2026-p51-roltop-melero.com[tdia-elero-catalog-2026-p51-roltop-m] Ø 45 mm from "RolTop M Fast running version". archive: vendor/elero/aero/catalog_pdf/d3db2f5a3087a18e41569789454c321eaa3e24c3927400842437f18ecca3c54a.pdf p51. elero catalogue 2026 p51, Technical data RolTop M-868 /-K / RolTop M /-K / RolTop M-868 / RolTop M high-speed version / RolTop/D+ M-868 / RolTop/D+ M / RolTop/D+ M NHK / RolTop s_onro M-868 / RolTop s_onro M / RolTop/J M-868 / RolTop/J M: "Min. shaft diameter (mm) 50 … Diameter (mm) 45"Derived (vendor document) · Observed 2026-10-09 · Retrieved 2026-10-09 · Public web pageUsed for: 54664

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Data gaps

Sources