The FrSky RB-30/RB-40 manual introduces the features and characteristics of the RB-30/RB-40 product, including the upgraded redundancy hub, 24 PWM channels, diversified sensors, NFC switch and automatic data logging function
The FrSky RB-30/RB-40 is an electronic device featuring a triple-redundancy design with up to 24 PWM channels for high-voltage servos. It includes overload protection on each output channel and current sensors on the first eight channels (CH1-8) for real-time monitoring.
The module supports dual power inputs via XT30 or XT60 connectors, allowing it to select the higher voltage source between two batteries. The RB-40 variant features an LCD screen with a menu scroll button and a CNC aluminum and carbon fiber case, while the RB-30 is lighter at 100g compared to the RB-40's 260g.
| Number of servos supported | up to 24 |
|---|---|
| Weight (RB-30) | 100g |
| Weight (RB-40) | 260g |
| Power connector (RB-30) | XT30 |
| Power connector (RB-40) | XT60 |
| Operating temperature range | -20℃~75℃ |
The RB-30 provides a continuous current of 15A per channel (2*15A) at voltages between 5V and 8.4V.
The RB-40 provides a continuous current of 30A per channel (2*30A) at voltages between 5V and 8.4V.
Eight of the output channels, specifically CH1 through CH8, are equipped with current sensors.
The recommended input voltage range is DC 11V to 26V.