TOPP offers a wide range of simple, functional systems for the automation of doors and windows, designed to simplify our daily movements. Our natural vocation is a constant search for the perfect balance between design, function, technology and creativity.

For more than 20 years we have been offering our engineering know-how as an outside workshop, and our attention has always been focused on product innovation. Every device is tested individually to maintain our commitment to quality materials of the highest quality.


Benefits of window automation include:

► To reach hardly accessible window

► To automatically ventilate rooms

► To control safely the windows in case of rain

► To easily operate multiple windows simultaneously

► It allows great opportunities to achieve innovative solutions

► It enhances energy saving according to green thinking

► It gives great solutions to the needs of disabled people

► It has a worthy cost/benefit ratio

Chain actuator C20

Thrust force 300 N, Max stroke 360 mm


Electric C20 actuator with double link articulated chain, enclosed in a suitable casing, with different mounting accessories for top and bottom hung windows. Operation at 230V 50Hz or, as an alternative, at 24V DC. Maximum applicable load 300N. Fast hooking and unhooking system of the chain to the window. Adjustment of the force and of the stroke at 240 or 360mm by external knobs. Electronic end of stroke in closing by current absorption control. CE marked device.

Double link chain with very high resistance on eavy loads.

Long stroke, together with a slim and attractive housing, to allow applications that require minimum size  (International patent on the chain path).

Stroke-end by amperometric absorption in closing to avoid chain adjustments in closing and any possible in stallation mistake.





Technical data


Bottomhung installation

Tophung installation

Skylight installation​

Reference projects

Related products

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Chain actuator C40. Thrust force 400 N, Adjustable stroke max.500 mm

Double Chain Actuator C240

Double Chain Actuator C240. Thrust force 400N, Max stroke 360mm

Linear Stem Actuator S80 RWA

Linear Stem Actuator S80 RWA. Thrust force 800N; Adjustable stroke max. 400 mm

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