The Curtis 1238e-7621 AC motor controller is a robust and versatile motor controller designed for electric vehicle and industrial applications. Operating at a voltage range of 72 to 130 volts, it offers high efficiency and precise control over AC induction motors. The Curtis AC motor controller features advanced algorithms for smooth acceleration, regenerative braking, and superior motor performance, especially in lightweight and medium-sized vehicles. It supports CAN bus communication for seamless integration with other vehicle systems, and its rugged design ensures reliable operation in demanding environments.

At a modest 130 volts, the Curtis AC motor controller makes a safer low voltage system that will give you lots of reliable EV miles. Available with after market Chill Plate adaptor that allows for liquid cooling.

*Harness and Display sold separately.

Max Current 650 Amps With Liquid Cooling (2 Min. Max)
Rated Power: 53 KW (70 HP)
Input Voltage 72-130 Volts
Length: 275 mm / 10.82 Inch
Width: 232 mm / 9.14 Inch
Height: 80 mm / 3.15 Inch
Weight: 5.45 Kg / 12 Lbs
Adjustable Max Output Voltage: 96
Switching Frequency: N/A
Brake Input Overrides: Yes
Error Output Warning Indicator: Yes
Precharge Circuit: Built In
Computer Interface: Ethernet Port
Data Logging Capabilities: Yes
Tach Output: Yes 1, 2, 4, 6, 8 Pulses
Limp home Mode: Yes, Controller Will Derate To Keep Pack Above Minimal Battery Voltage
Firmware Upgradable: Yes
Internal Contactor: No
Thermal Derating: Yes, Derates After Temperature Gets Above 80 Degrees Celsius (176 Degrees Fahrenheit)
Reverse Capability: Yes
Adjustable Acceleration (Slew Rate): Yes
Idle Function: Yes, 500-1500 RPM (Modern Vehicles Idle from 600-800 RPM)
Programmable Inputs: Yes
Programmable Outputs: Yes
Terminal Stud Size: M10 / 3/8 Inch
RPM Sensor: Internal
Max Efficiency: 88%
Thermal Cooling: Yes, Chill Plate Sold Separately
Warranty Period: 1 Year

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