The FAAC 844 R 380V MC 3PH electromechanical gearmotor is engineered for heavy industrial and commercial sliding gate automation, including telescopic gate layouts. Because the operator ships without an integrated pinion, mechanical integration is tailored to project parameters by selecting specific rack pinions (Z12, Z16, or Z20) or chain drive conversion sprockets directly matching the gate leaf weight, travel speed, and overall clear opening span.
Drive Transmission and Pinion Selection
The internal 1:30 reduction gearbox delivers a maximum output torque of 62 Nm. System thrust, travel speed, and maximum leaf capacities correlate directly with the chosen drive pinion format:
| Pinion Type | Maximum Leaf Weight | Maximum Leaf Width | Linear Leaf Speed | Max Expressed Force |
|---|---|---|---|---|
| Z12 Pinion | 2,200 kg | 30 m | 7.2 m/min | 2500 N |
| Z16 Pinion | 1,800 kg | 40 m | 9.5 m/min | 1900 N |
| Z20 Pinion | 1,000 kg | 50 m | 12.0 m/min | 1500 N |
The gearmotor is fully compatible with standard modular toothed racks or industrial drive chain conversion hardware to match heavy track profiles and telescopic leaf telescoping assemblies.
Power Infrastructure and Control Board Integration
The operator requires a three-phase mains supply of 380–415V~ (3PH+N) at 50/60 Hz to drive its 950 W asynchronous 4-pole electric motor. Upstream supply infrastructure must incorporate an all-pole mains isolation switch with a contact separation distance of at least 3 mm, alongside a 0.03 A differential residual-current device (RCD).
For logic control and motor switching, the operator is compatible with built-in electronic control equipment or can interface with dedicated external three-phase microprocessor control panels, such as the FAAC 844T board. The 844T integration accommodates three-phase motor reversing contactors and active electronic braking systems to manage the momentum of leaves weighing up to 2,200 kg.
Safety Devices and Limit Sensor Interfacing
The FAAC 844 R 3PH is configured for comprehensive industrial safety architectures:
- Travel Sensing: Utilizes an onboard inductive limit switch system activated by metal limit sensor plates secured directly along the gate leaf track or rack.
- Safety Edges: Fully compatible with Category 3 (CAT3) resistive safety edges positioned along primary and secondary closing edges.
- Optical Sensors: Integrates seamlessly with external infrared photobeams (photocells) for obstacle detection across vehicle and pedestrian pathways.
- Mechanical Force Regulation: Features an internal twin-disk clutch immersed in FAAC HP OIL, providing mechanical anti-crushing safety and torque calibration directly at the drive shaft.
Structural and Enclosure Compatibility
Featuring an irreversible, non-reversing mechanical reduction system, the operator mechanically locks the gate leaf in closed and open positions, removing any operational requirement for auxiliary electric locks. The pressure-cast aluminium housing features height and side-adjustable fastening mounting slots for alignment on the foundation baseplate, has an IP44 ingress protection rating, and operates across an ambient temperature range of -20°C to +55°C. System implementations meet the compliance criteria set out under standards EN 12453, EN 12445, EN 12604, and EN 12605.
