Heatsink is completely isolated from internal electronics.
If you have an obscure OEM Curtis 3501 with a missing manual, you can reverse-engineer it:
The Curtis Model 3501 is a highly efficient, microprocessor-based motor speed controller designed for electric vehicle applications. It is widely used in golf carts, material handling equipment, and small industrial utility vehicles to provide smooth, silent, and cost-effective control of motor speed and torque. curtis 3501 manual
The Curtis 3501 manual is a comprehensive guide provided by Curtis Instruments, the manufacturer of the golf cart controller. The manual covers the installation, operation, and maintenance of the Curtis 3501 controller, which is a crucial component of the golf cart's electrical system.
Auto-ranging from 12V to 80V DC ± 25% (9V to 100V DC range). Heatsink is completely isolated from internal electronics
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Determines how fast the vehicle slows down when the throttle is released. The Curtis 3501 manual is a comprehensive guide
The auto-ranging power supply is a standout feature. It can safely operate on a nominal voltage range from 12V to 80V DC, with a tolerance of ±25%. This gives it a functional safety window of 9V to 100V DC.
Rated for high mechanical shock and vibration (SAE J 1378). Buttons: 5 push-buttons for menu navigation. 2. Curtis 3501 Installation Guide
The manual also covers the operation and troubleshooting of the Curtis 3501 controller:
: Documentation for the 1-Amp FET output used to control vehicle functions like alarms or lift-lockouts. Technical Review & User Notes 💡