Chain drives FM 194 - 401 Tandem

FM 194 401 Tandem RWA

For smoke and heat extraction and ventilation for bottom-hung, top-hung, side-hung as soon as flat windows for particularly wide windows, requiring 2 drive mechanism


• two drive mechanisms integrated in the case, 4-pole connection cable
• the drives can be mounted at any distance apart from one another on the casement
• with tandem power cut-off integrated in the drives
• drives with quiet operation
• pressing- and tractive forces up to 900 N
• mechanical adjustable closing pressure
• opening mechanics with double chain according to the zipper principle
• noncorrosive external elements

FM/194-2x450N/TD/S/RWA (2109742)

different variants:

309mm Hub (2109775), 401mm Hub (2109809), FM/1942x450N/TD/W/RWA (2109734), 309mm Hub (2109767), 401mm Hub (2109791)





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technical voltage

24 V DC (-20 % / +30 %)

technical draw

ca. 2,0 A


integrated limit switch (Open and Closed), with additional overload protection

pressing force

max. 900 N

tractive force

max. 900 N

nominal clamping force

max. 2 x 3000 N

stroke width

194, 301, 401 mm

min. casement height at stroke length

without bracket
FM/194: 300 mm
FM/309: 600 mm
FM/401: 800 mm

with bracket SBFM5
FM/194: 200 mm
FM/309: 500 mm
FM/401: 600 mm


FM/194-309: 449 x 70 x 56.5 mm
FM/401: 541 x 70 x 56.5 mm

speed of operation

approx. 10 mm/sec. at rating load and nominal load

power supply cable

2-pole power supply cable; approx. 3 m;
4-pole connection cable; approx. 1.8 m

start-up time

60 sec. (ED/ON), 120 sec. (AD/OFF)

service life

range of temperature

- 10 °C to + 60 °C

IP protection class

IP 20 according to DIN EN 60 529




powder-coated, white (RAL 9016) or silver grey (RAL 9006)

special colours

RAL colours on request

included in delivery

type of construction tested

acoustical measurement

dimensional drawing DXF

FM 194-2x N TD RWA D FM_194-2x_N_TD_RWA_D.dxf (815.3 KiB)
Hinweis zum Einbau

If casement height is very low, please order the corresponding swivel bracket SBFM additional.

Load-displacement diagram

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