Electronic bidirectional proportional controller Redox ULTRA 45R for class 400/500/600 brushed motors in RC cars and boats. Offers 2 brake and reverse modes, protection against low voltage and MOSFET overheating, smooth operation at low RPM and a linear throttle curve for instant response.
Efficient cooling and stable performance
A large finned heatsink helps dissipate heat from the power section (MOSFET), supporting stable operation and helping protect the electronics under higher load.
Precise control: linear throttle, brake and reverse
The controller offers a linear throttle curve for instant response, two brake modes (passive/active) and bidirectional operation with reverse for easy maneuvering in an RC model.
Practical wiring with switch
The wiring includes an inline switch for convenient power on/off and connectors for easier installation in the model.
Redox ULTRA 45R is an electronic speed controller designed for propulsion systems of remote-controlled model cars and boats with DC brushed motors (classes 400, 500 and 600). Thanks to stable control at low RPM and a linear throttle response, you get more precise control and faster reaction to throttle input.
Main features and benefits:
- Bidirectional (forward/reverse) proportional controller for 400/500/600 brushed motors
- 2 brake and reverse modes: passive brake and active brake
- Protection against low supply voltage and overheating protection of the MOSFET
- Factory-set program for a quick start (limiting wheel spin)
- Stable operation at low RPM
- Linear throttle curve – instant reaction to acceleration
Notice: The controller is not waterproof. When installing in a boat model, ensure suitable protection against moisture and adequate cooling.
Specifications
- Intended use
- For DC brushed motors of classes 400 / 500 / 600 (RC cars and boats)
- Dimensions (including heatsink)
- 38 × 28 × 22 mm
- Controller weight
- 38 g
- Supply voltage
- 2S LiPo (7.4 V) or 5–6 NiXX cells (6.0–7.2 V)
- Current (continuous)
- 45 A
- BEC
- Linear, 5.6 V / 2 A
- Motor winding limit
- 10T / < 30000 RPM
- Water resistance
- No (controller is not waterproof)