- Essential component selection
- Power-actuated arm-up position
- Gravitational free fall in case of power outage or signal loss
- Maintaining current threshold value in case of sudden movements
- Radial motor movement speed control through gear system
- Load balancing for minimum power consumption
- Magnetic lock preventing reverse action of motor in powered state
- Gear system rotating speed and position control
- Oil sump for mechanical moving parts
- Heater, cooler, humidity balancer inside the mechanism
- Voltage and current control
- Arm status information (broken, position, speed)
- Stainless aluminum body
- Grounding installation against catenary system voltage
