Ref : 1241230 - Sonesse 28 WF RTS PACK

Sonesse® 28 WireFree RTS (External Battery)

Quiet, Wireless Comfort and Convenience

The Sonesse 28 WireFree is a Designed for Silence motor with an improved sound level. It provides the ultimate in quiet performance and is perfect for today’s decorative shading solutions.

Interior Window Coverings : Blinds, Shades
Embedded Technologies Warranty Compatible Protocols
RTS 5 years RTS

Product benefits

Increase Opportunities

  • Compact for smaller window openings.
  • Smooth motion with adjustable speed control.
  • LED low battery indicator.

Comfort & Convenience for Users

  • Designed for Silence, to minimize noise during operation.
  • Improved, smaller diameter head design.
  • Optional power supply.
  • Solar charging option.
  • ESD Immunity.
Act For Green cycle
The carbon impact of the Sonesse 28 WF RTS PACK is 21.6kg CO2

What is the carbon footprint?

The carbon footprint calculates the greenhouse gas emissions over the entire life cycle of a product, from the extraction of raw materials to the end of its life. This calculation is based on a recognised international standard (ISO 14025) and is externally checked by Bureau Veritas.

Details and specifications

Comfort & Convenience

  • Designed for Silence performance.
  • A smaller motor head diameter minimizes the light gap.
  • LED low battery indicator to alert you when it’s time to recharge.

Radio Technology Somfy® (RTS)

  • Exclusive “MY” feature saves your favorite shade position for quick access.
  • Compatible with all control options such as hand-held remotes and wireless wall switches.
  • Operates with simple voice commands using TaHoma.

Technical information


Protection Index IP 20 (for indoor use only)  
Insulation class III  


Unwrapped product weight 0.84 lb  
Unwrapped length 13.7 in  
Minimum internal diameter 1.05 in  
External Diameter 1.97 in  
Diameter 1.1 in  


Radio Frequency RTS 433.42 MHz  
Range in open field 656.2 ft  
Memory capacity 12  
Number of cycles per day (in cycles) 1  


Consumption during operation 13.2 W  
Minimum voltage 9.5 V  
Maximum voltage 16.5 V  
Rated current 1.1 A  
Power supply DC - RGE 7 12V  
Antenna External, External 175 mm  


Speed 20 rpm  
Torque 1.1 Nm  
Type of limit switch unit Electronic & monodirectional  
Capacity of the limit switch unit (turns) 200  
Power scale DC MOTOR 0W TO 37,5W  
Repeatabilty +/- 5  
Head type ROUND  


Cable type 2464  
Cable length 0.98 ft  
Cable color WHITE  
Number of wires of the cable 2  
Cable plug ends JST  
Wire section 0.0005 in²  


Minimum working temperature 32 °F  
Maximum working temperature 140 °F  
Minimum storing temperature -4 °F  
Maximum storing temperature 140 °F  
Thermical time 6 min  
Noise level (dB) 49 dB  
Approval CE, EAC, RCM, SASO  


56 Product(s)
44mm Aluminum Tube (Acmeda) (Minimum Order Length 16')
Réf. 1780688
12V DC Plug-in Power Supply
Réf. 1870940
Extension Charging Cable, 94.5" (V2 Head)
Réf. 9021016
WireFree Li-ion Solar Panel Kit (Includes Solar Panel, Brackets, and Glass Mount Adhesive)
Réf. 9027294
Cord Take-Up Reel (for RollEase & ZMC XL Series 1.5" Tube)
Réf. 1780786
40mm Fabric/Cord Clip for Roman Shade Applications
Réf. 9012200
Idler End Plug 44mm Tube (Acmeda Type)
Réf. 9013774
Motor Adaptor Plate (Acmeda Type) and Screws
Réf. 9013789
M3.5 x 9mm Screw (Sonesse® 40 WireFree, Sonesse® 30 Wired & WireFree, & Roll Up WireFree Only)
Réf. 9014066
RollEase 1.5" SkyLine Bracket (2 Required)
Réf. 9017910
RollEase 1.5" Roller Tube (16 ft. Lengths)
Réf. 9017913
Y Harness for Dual Reloadable Battery Tube
Réf. 9018625
12V DC Reloadable Battery Tube
Réf. 9018685
Vignette Crown & Drive
Réf. 9025813
Crown & Drive Adaptor Kit for Shangri-la (Older Style Tube)
Réf. 9026396
Wall Mounting Clips for Battery Tubes (Optional)
Réf. 9013263
Shangri-La Mounting Clips for Battery Tubes (Set of 2)
Réf. 9013266
Motor and Idler Bracket Kit (for Louvolite System 40 & ZMC RS Series )
Réf. 9013715
Plastic Bracket Cover 40P Kit (Acmeda type)
Réf. 9013780
8 AA Lithium Battery Package (for Battery Tube 9018685)
Réf. 9014834
Crown & Drive Set Adaptor for Hunter Douglas 4" Silhouette (Quartette)
Réf. 9016953
Double SkyLine Bracket Covers (Includes Left and Right Set)
Réf. 9017267
Power Extension Cable for External Battery Motor, 10” (25cm)
Réf. 9018623
Power Extension Cable for External Battery Motor, 96” (244cm)
Réf. 9018624
Acmeda 45 Crown & Drive
Réf. 9021018
Acmeda 45 Heavy Duty Crown & Drive
Réf. 9021036
Extension Charging Cable, 8" (For Cassette Applications) (V2 Head)
Réf. 9021131
Magnetic Rigid Cable (for V2 Li-ion)
Réf. 9028560
Motor & Idler Bracket Kit 40P (Acmeda type)
Réf. 9013778
Motor Adaptor Plate for RollEase SkyLine & ZMC XL Series Brackets
Réf. 9016378
RollEase 1.5" Crown & Drive
Réf. 9020674
Sonesse® 30 WireFree to 400 Series Adaptor Kit
Réf. 9020676
Crown & Drive Set Adaptor for 26.1mm Tube
Réf. 9026644
Replacement Battery Clips for (Li-ion) Battery Pack (9021217)
Réf. 9027701
Rechargeable Lithium-ion Battery Pack (for External Battery WireFree Motors)
Réf. 9021217
Tube Spline 44MM Tube (Acmeda Type)
Réf. 1780687
Collapsible End Plug (for Louvolite System 40 & ZMC RS Series)
Réf. 9013716
Dual Motor and Idler Bracket Kit (Acmeda type)
Réf. 9013782
Y Harness (optional) 24" (60cm)
Réf. 9018628
Louvolite 45mm Crown & Drive
Réf. 9025811
Silhouette Crown & Drive
Réf. 9025816
Magnetic Adaptor (for V2 Li-ion)
Réf. 9028562
Cord Take-Up Reel (for Acmeda 44mm Tube)
Réf. 1781898
Silhouette Mounting Clips for Battery Tubes (Set of 2)
Réf. 9013264
RollEase Heavy Duty Spring Idler End Pin (1.5" Tube)
Réf. 9017912
Y Harness for Dual Reloadable Battery Tube (10"/30" offset)
Réf. 9018626
Y Harness (Optional) 48" (120cm)
Réf. 9018629
Louvolite 40mm Crown & Drive
Réf. 9020675
Hunter Douglas 31mm Crown & Drive
Réf. 9025812
Crown & Drive Adaptor Kit for Shangri-la (New Style Tube)
Réf. 9026395
Power Extension Cable for External Battery Motor, 48” (122cm)
Réf. 9016736
White Bracket Covers (1.5" SkyLine)
Réf. 9017911
Hunter Douglas 37mm Crown & Drive
Réf. 9020699
Crown & Drive for RollEase/ZMC 2" Profiled Tube
Réf. 9021017
Lithium-ion Charger (V2 Head)
Réf. 9025166
RollEase 1.25" Crown & Drive
Réf. 9025815