CHAIN DRIVES – KA
The 24 V DC KA 66-TW chain drive contains two KA 34 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.
KA 66-TW
Performance Features
- With integrated BSY+ motor and synchronised electronics controlled via microprocessor
- 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 | 24 V DC / ±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 |
*Programmable
** See pressure load diagram in product information download
