The wireless timer for roller shutters, blinds, awnings, and lights
The Troll Comfort DuoFern 5665
The Troll Comfort DuoFern is a wireless timer for controlling tubular motors. The new "Troll Comfort DuoFern" features a modern design with a large, backlit display with contrast adjustment and is available in Ultra White and Aluminum, including a frame. It includes an installation wizard and has an integrated interface for quick and easy integration into the DuoFern wireless system. It can be controlled remotely via DuoFern transmitters.
The Troll Comfort DuoFern offers a wide range of automatic functions, such as the random function, daily/weekly/weekend schedules, and an astro program. The ventilation and sun positions can be freely selected. It is also possible to easily move to intermediate positions. The summer/winter time changeover occurs automatically, and a key lock can be set to prevent unintended operation. Additionally, the Troll Comfort DuoFern offers a blind function that allows you to set automatic tilting or manual operation, as well as a light function that can be used to switch lights on and off.
The sun/twilight sensor, available as an accessory, enables sun/twilight control. The Troll Comfort features built-in jam detection for mechanical tubular motors. This protects the frozen roller shutter from damage by automatically shutting it down. The Troll Comfort DuoFern has two external inputs that can also be used to implement group or central control.
The control unit is designed in accordance with DIN 49075 and can be integrated into all standard switch ranges using adapter frames.
- Wireless control system for tubular motors – controllable remotely via DuoFern central control units and DuoFern transmitters
- Large backlit display with easy-to-use menus and a wide range of features
- Brightness-dependent control with a light sensor is possible
- Integrated jam detection for mechanical tubular motors
- Displaying weather data from the environmental sensor
| Item number: | 3650 05 72 (UW)/ 3650 05 82 (AL) |
| Type: | 5665-UW / 5665-AL |
| Supply voltage: | 230 V, 50 or 60 Hz |
| Protection class: | II |
| Dimensions: | 50 x 50 x 12 mm (L x W x H) |
| Installation depth: | 32 mm |
| Switching capacity: | 8 A resistive load, 4 A inductive load |
| Standby power consumption: | approx. 0.4 W |
| Transmission frequency: | 434.5 MHz |
| Transmission power: | max. 10 mW |
| Range in open field: | approx. 100 m |
| Range inside the building: | approx. 30 m (depending on the building's condition) |
| Power reserve in the event of a power outage: | approx. 8 hours |
| Operating at: | 0 to 40 °C |
| External inputs: | 2 |
| DuoFern transmitter: | up to 20 |





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