What supply voltage and frequency does each use?

Rated voltage — Wistar motor WSERD50-L · 15 Nm: 12 V; Somfy 515S2 15/38 SJTW: 120 V. Mains frequency — Somfy 515S2 15/38 SJTW: 60 Hz. Power supply type — Wistar motor WSERD50-L · 15 Nm: DC; Somfy 515S2 15/38 SJTW: AC mains.

What torque and speed is each rated for?

Rated torque — Wistar motor WSERD50-L · 15 Nm: 15 Nm; Somfy 515S2 15/38 SJTW: 15 Nm. Rated speed — Somfy 515S2 15/38 SJTW: 38 rpm.

Which durability indicators does each publish?

OpenAxia does not rate reliability; the published indicators are: Short-time duty (S2) — Somfy 515S2 15/38 SJTW: 5 min. IP rating — Wistar motor WSERD50-L · 15 Nm: IP44; Somfy 515S2 15/38 SJTW: IP44.

Wistar motor WSERD50-L · 15 Nm vs Somfy 515S2 15/38 SJTW

Rated voltage — Wistar motor WSERD50-L · 15 Nm: 12 V^{[1; 2026-10-01]}; Somfy 515S2 15/38 SJTW: 120 V^{[2; 2026-10-07]}.

Rated power input — Wistar motor WSERD50-L · 15 Nm: 12 W^{[1; 2026-10-01]}; Somfy 515S2 15/38 SJTW: 210 W^{[3; 2026-09-30]}.

Rated current — Wistar motor WSERD50-L · 15 Nm: 6 A^{[1; 2026-10-01]}; Somfy 515S2 15/38 SJTW: 1.8 A^{[2; 2026-10-07]}.

Last verified: 2026-10-07

When to choose Wistar motor WSERD50-L · 15 Nm

For a supply rated 12 V^{[1; 2026-10-01]}.
For the stated supply type: DC^{[1; 2026-10-01]}.
For the stated diameter: 45 mm^{[1; 2026-10-01]}.
For a rated torque of 15 Nm^{[1; 2026-10-01]}.

When to choose Somfy 515S2 15/38 SJTW

For 120 V^{[2; 2026-10-07]} / 60 Hz^{[2; 2026-10-07]} mains.
For the stated supply type: AC mains^{[2; 2026-10-07]}.
For a rated torque of 15 Nm^{[2; 2026-10-07]}.
For a rated speed of 38 rpm^{[2; 2026-10-07]}.

Verifiable indicators

Short-time duty (S2) — Somfy 515S2 15/38 SJTW: 5 min^{[2; 2026-10-07]}. Wistar motor WSERD50-L · 15 Nm: Not published.

Rated life — Wistar motor WSERD50-L · 15 Nm: Not published. Somfy 515S2 15/38 SJTW: Not published.

Thermal protection — Wistar motor WSERD50-L · 15 Nm: Not published. Somfy 515S2 15/38 SJTW: Not published.

IP rating — Wistar motor WSERD50-L · 15 Nm: IP44^{[1; 2026-10-01]}; Somfy 515S2 15/38 SJTW: IP44^{[2; 2026-10-07]}.

Comparison table
Property	Wistar motor WSERD50-L · 15 NmWistar motorWSERD50-L-15/12	Somfy 515S2 15/38 SJTWSomfy1040062
Series & variant axes
SeriesDiffers: WSERD50-L vs LT50	WSERD50-L	LT50
Identity & lineage
Series / product line	WSERD50-L^{[1; 2026-10-01]}	Not published
Electrical
Rated voltageDiffers: 12 V^{[1; 2026-10-01]} vs 120 V^{[2; 2026-10-07]}	12 V^{[1; 2026-10-01]}	120 V^{[2; 2026-10-07]}
Mains frequency	Not published	60 Hz^{[2; 2026-10-07]}
Power supply typeDiffers: DC^{[1; 2026-10-01]} vs AC mains^{[2; 2026-10-07]}	DC^{[1; 2026-10-01]}	AC mains^{[2; 2026-10-07]}
Rated power inputDiffers: 12 W^{[1; 2026-10-01]} vs 210 W^{[3; 2026-09-30]}	12 W^{[1; 2026-10-01]}	210 W^{[3; 2026-09-30]}
Standby power	Not published	0 W^{[3; 2026-10-01]}
Rated currentDiffers: 6 A^{[1; 2026-10-01]} vs 1.8 A^{[2; 2026-10-07]}	6 A^{[1; 2026-10-01]}	1.8 A^{[2; 2026-10-07]}
Cable length	Not published	2 m^{[2; 2026-10-07]}
Drive performance
Rated torque	15 Nm^{[1; 2026-10-01]}	15 Nm^{[2; 2026-10-07]}
Rated speed	Not published	38 rpm^{[2; 2026-10-07]}
Short-time duty (S2)	Not published	5 min^{[2; 2026-10-07]}
Dimensions & mounting
Motor diameter	45 mm^{[1; 2026-10-01]}	Not published
Overall length	565 mm^{[1; 2026-10-01]}	Not published
Weight	2.04 kg^{[1; 2026-10-01]}	Not published
Environment & protection
IP rating	IP44^{[1; 2026-10-01]}	IP44^{[2; 2026-10-07]}
Operating temp. (min)	Not published	-10 °C^{[2; 2026-10-07]}
Operating temp. (max)	Not published	60 °C^{[2; 2026-10-07]}
Noise level	Not published	56 dB(A)^{[2; 2026-10-07]}
Documents	Request datasheet	Official datasheet ↗

Series

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Data gaps

Wistar motor WSERD50-L · 15 Nm: Limit range — Not yet collected

Questions and answers

What supply voltage and frequency does each use?: Rated voltage — Wistar motor WSERD50-L · 15 Nm: 12 V; Somfy 515S2 15/38 SJTW: 120 V. Mains frequency — Somfy 515S2 15/38 SJTW: 60 Hz. Power supply type — Wistar motor WSERD50-L · 15 Nm: DC; Somfy 515S2 15/38 SJTW: AC mains.
What torque and speed is each rated for?: Rated torque — Wistar motor WSERD50-L · 15 Nm: 15 Nm; Somfy 515S2 15/38 SJTW: 15 Nm. Rated speed — Somfy 515S2 15/38 SJTW: 38 rpm.
Which durability indicators does each publish?: OpenAxia does not rate reliability; the published indicators are: Short-time duty (S2) — Somfy 515S2 15/38 SJTW: 5 min. IP rating — Wistar motor WSERD50-L · 15 Nm: IP44; Somfy 515S2 15/38 SJTW: IP44.

Sources

↑Wistar motor manufacturer site (product catalog)wistarmotor.comSeries / product line: Ref: WSERD50-LManufacturer-stated · Observed 2026-10-01 · Retrieved 2026-10-01 · Public web pageUsed for: 15393, 15388, 15378, 15386, 15390, 15376, 15382, 15391, 15392, 15380
↑Somfy PDF catalogue lt50ra-d0025service.somfy.comRated voltage: Voltage Supply: 120V AC, 60Hz [1039027] (p. 1)Manufacturer-stated · Observed 2026-10-07 · Retrieved 2026-10-06 · Public web pageUsed for: 51128, 51130, 51129, 51136, 51134, 51135, 51137, 51138, 51131, 51132, 51133, 51139
↑Somfy Systems (North America) manufacturer site (product catalog)somfysystems.comRated power input: Consumption during operation 210 WManufacturer-stated · Observed 2026-09-30 · Retrieved 2026-09-30 · Public web pageUsed for: 4502, 10544

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