KA 66-TW-K


The 230 V AC KA 66-TW-K chain drive contains two KA 34-K drives in a single housing. It provides doubled tensile and pressure force with equal load distribution on the vents. It provides a range of stroke lengths up to 800mm.

Performance Features

  • With integrated BSY+ motor and synchronised electronics controlled via microprocessor
  • Direct control via 230 V AV
  • High‑speed function (HS) for rapid opening of windows in case of fire (SHEV)
  • Two synchronised drive chains for optimal power application to the vent
  • Special chain stabilisation
  • Window gasket relief function upon closing
  • Electronic force and position control
  • Programmable drive functions through SCS software
  • Variable running speeds in both OPEN & CLOSE direction
  • Time-controlled reversing when an obstacle is detected in the CLOSED direction (active closing edge protection)

Technical Data

Supply 230 V AC / ±15 % / 2 A
Duty cycle 30 %
Stroke length Up to 800mm
Pressure force ** 600 N
Tensile force 600 N
Nominal locking force 3000 N
Service life 20000 double strokes
OPEN running speed * 11.8 mm/s
OPEN running speed – SHEV * 12.2 mm/s
CLOSED running speed * 11.8 mm/s
Protection class IP 32
Temperature range -5 °C … +75 °C
Fire resistance B300 (30 min / 300 °C)
Housing Aluminium
Surface Powder-coated. All RAL colours available
Connection 2.5 m silicone cable

** See pressure load diagram in product information download


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