This separately excited motor speed controller is designed for use in a variety of small industrial vehicles and in material handling equipment. These programmable controllers are simple to install, efficient, and cost effective, while offering more features than the original 1266. The controller provides smooth precise control of motor speed and torque. A full-bridge field control stage is combined with a half-bridge armature power stage to provide solid state motor reversing and full regenerative braking without additional relays or contactors. The controller's rugged IP53 housing and packaging are built to withstand shock and vibration. State-of-the-art surface mount logic board fabrication makes it even more reliable than the original 1266. The 1266R-5351 controller is fully programmable for the use with CURTIS Model 1313-4401 Handheld Programmer or 1314 PC Programming Station. In addition to configuration flexibility, the programmer provides diagnostic and test capability. Appropriate Throttles for Use with the 1266R-5351 Controller: Type 1: 2-wire 5kΩ-0 throttles Type 2: 0-5V throttles, current source throttles, three-wire potentiometer throttles, and electronic throttles wired for singleended operation Type 3: 2-wire 0-5kΩ throttles Type 4: 0-5V and three-wire potentiometer throttles wired for wigwag operation Model Number: 1266R-5351 Voltage: 36-48V Drive Current Limit (amps): 350A PWM operating frequency: 16 kHz Electrical isolation to heatsink (min.): 500 VAC KSI input voltage (minimum): 16.8 V Logic input voltage: 7.5 V High; Less than 1 V Low Logic input current 15 mA Overvoltage protection: 24V models: cutback at approx. 30V, cutback at ≈34V Color: black Material: Metal Package Contents: 1 x Motor Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.