What supply voltage and frequency does each use?

Rated voltage — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: 120 V; Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: 120 V. Power supply type — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: AC mains; Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: AC mains.

What torque and speed is each rated for?

Rated torque — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: 4 Nm; Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: 4 Nm. Rated speed — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: 36 rpm; Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: 36 rpm.

What protocols and control options does each support?

Limit setting — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: Progressive adjustment (PA); Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: Electronic. Control protocol — Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: RTS.

Somfy Sonesse® 40: 40 turns vs 250 turns

Limit range — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: 40 turns^{[1; 2026-10-06]}.

Limit range — Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: 250 turns^{[1; 2026-10-06]}.

Last verified: 2026-10-28

When to choose Somfy Sonesse® 40 WT 404S2 RH without Fast Connector

For a supply rated 120 V^{[1; 2026-10-06]}.
For the stated supply type: AC mains^{[1; 2026-10-06]}.
For a rated torque of 4 Nm^{[1; 2026-10-06]}.
For a rated speed of 36 rpm^{[1; 2026-10-06]}.

When to choose Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector

For a supply rated 120 V^{[1; 2026-10-06]}.
For the stated supply type: AC mains^{[1; 2026-10-06]}.
For a rated torque of 4 Nm^{[1; 2026-10-06]}.
For a rated speed of 36 rpm^{[1; 2026-10-06]}.

Verifiable indicators

Short-time duty (S2) — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: Not published. Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: Not published.

Rated life — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: Not published. Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: Not published.

Thermal protection — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: Not published. Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: Not published.

IP rating — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: IP44^{[1; 2026-10-06]}; Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: IP44^{[1; 2026-10-06]}.

Comparison table
Property	Somfy Sonesse® 40 WT 404S2 RH without Fast ConnectorSomfy1001553	Somfy Sonesse® 40 RTS 404S2 RH without Fast ConnectorSomfy1001636
Series & variant axes
Series	Sonesse 40	Sonesse 40
Control protocolDiffers: WT (from model name) vs RTS (from model name)	WT (from model name)	RTS (from model name)
Power supply	AC mains	AC mains
Electrical
Rated voltage	120 V^{[1; 2026-10-06]}	120 V^{[1; 2026-10-06]}
Power supply type	AC mains^{[1; 2026-10-06]}	AC mains^{[1; 2026-10-06]}
Rated power input	110 W^{[2; 2026-09-30]}	110 W^{[2; 2026-10-28]}
Standby power	Not published	0.5 W^{[2; 2026-10-28]}
Rated current	0.95 A^{[1; 2026-10-06]}	0.95 A^{[1; 2026-10-06]}
Drive performance
Rated torque	4 Nm^{[1; 2026-10-06]}	4 Nm^{[1; 2026-10-06]}
Rated speed	36 rpm^{[1; 2026-10-06]}	36 rpm^{[1; 2026-10-06]}
Limits & protection
Limit settingDiffers: Progressive adjustment (PA)^{[1; 2026-10-06]} vs Electronic^{[1; 2026-10-06]}	Progressive adjustment (PA)^{[1; 2026-10-06]}	Electronic^{[1; 2026-10-06]}
Limit rangeDiffers: 40 turns^{[1; 2026-10-06]} vs 250 turns^{[1; 2026-10-06]}	40 turns^{[1; 2026-10-06]}	250 turns^{[1; 2026-10-06]}
Control & communication
Control protocol	Not published	RTS^{[2; 2026-10-28]}
Radio frequency	Not published	433.42 MHz^{[2; 2026-10-28]}
Radio range	Not published	50 m^{[2; 2026-10-28]}
Environment & protection
IP rating	IP44^{[1; 2026-10-06]}	IP44^{[1; 2026-10-06]}
Operating temp. (min)	0 °C^{[1; 2026-10-06]}	0 °C^{[1; 2026-10-06]}
Operating temp. (max)	60 °C^{[1; 2026-10-06]}	60 °C^{[1; 2026-10-06]}
Noise level	42 dB(A)^{[1; 2026-10-06]}	42 dB(A)^{[1; 2026-10-06]}
View all 19 variants
Documents	Request datasheet	Request datasheet

Same-series variants

Variant axis	Somfy Sonesse® 40 WT 404S2 RH without Fast Connector	Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector
Control protocol	WT (from model name)	RTS (from model name)

Questions and answers

What supply voltage and frequency does each use?: Rated voltage — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: 120 V; Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: 120 V. Power supply type — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: AC mains; Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: AC mains.
What torque and speed is each rated for?: Rated torque — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: 4 Nm; Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: 4 Nm. Rated speed — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: 36 rpm; Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: 36 rpm.
What protocols and control options does each support?: Limit setting — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: Progressive adjustment (PA); Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: Electronic. Control protocol — Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: RTS.
Which durability indicators does each publish?: OpenAxia does not rate reliability; the published indicators are: IP rating — Somfy Sonesse® 40 WT 404S2 RH without Fast Connector: IP44; Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector: IP44.

Sources

↑Somfy PDF catalogueservice.somfy.comRated voltage: Voltage Supply: 120V AC [1001553] (p. 8)Manufacturer-stated · Observed 2026-10-06 · Retrieved 2026-10-06 · Public web pageUsed for: 50156, 50167, 50157, 50168, 50164, 50175, 50163, 50174, 50165, 50176, 50162, 50173, 50158, 50169, 50159, 50170, 50160, 50171, 50161, 50172, 50166, 50177
↑Somfy Systems (North America) manufacturer site (product catalog)somfysystems.comRated power input: Consumption during operation 110 WManufacturer-stated · Observed 2026-09-30 · Retrieved 2026-09-30 · Public web pageUsed for: 4216, 64596, 64597, 64598, 64599, 64600

See something wrong? Report an error

Somfy Sonesse® 40 WT 404S2 RH without Fast Connector vs Somfy Sonesse® 40 RTS 404S2 RH without Fast Connector