What is the difference between the controllers standard and the HE versions?
The High Efficiency version controls twice the number of output transistors, which in turn cuts the generated heat by half. While this could theoretically mean that the HE could handle twice the amount of current, above 140A other components, including the wires, reach temperatures above their approved specifications. Roboteq deliberately set the software limit at 140A and recommends this version for applications requiring the improved reliability of a cooler running unit. The HE version is also fitted with extended temperature components and can operate in -40 to +85 oC ambient temperature.
