Includes overcurrent, short circuit, and overheating protection. It begins thermal cutback at and reaches complete cutoff at Sealed Design:
The Curtis 1520 is a high-performance DC motor speed controller. It is primarily recognized as a heavy-duty upgrade or replacement for stock controllers in utility and transport vehicles. Model: 1520-5501 (most common variant). Voltage: 36V or 48V (default setting is 48V). curtis 1520 controller manual
If you are upgrading from a standard 1510 or 1515 controller, note these critical differences: : The curtis 1520 controller manual
If you have read the manual and still have issues: curtis 1520 controller manual