125DV-C Product Description Dart Controls 125DV-C, also named 125 series SCR DC motor speed controller, is an analog DC drive unit for permanent magnet and shunt wound DC motors. It is designed to adjust armature voltage for motor speed regulation, supporting stable speed control for old automation equipment renovation.

This controller delivers reliable speed regulation for motor drive tasks. The speed regulation supports 50:1 wide speed adjustment range with 1% high precision speed stability. The speed regulation realizes minimum and maximum speed limit setting and current limiting protection. Stable speed regulation maintains consistent rotation speed under varying load conditions.

The built-in SCR power circuit achieves steady power output. The power output accepts 120/240VAC dual voltage input and outputs 0-90/180VDC. The power output supports 5.5A continuous DC current for 1/8 to 1HP DC motors. Accurate power output adjusts armature voltage following speed potentiometer commands.

Open chassis compact structure brings convenient cabinet mounting. Cabinet mounting can be fixed inside electrical cabinet with screw installation. Cabinet mounting connects AC power and DC motor via barrier terminal block. Flexible cabinet mounting is widely used for legacy 125 series DC drive spare replacement.

125DV-C features inhibit circuit for start-stop control and transient surge protection, equipped with adjustable trimpots for IR compensation and acceleration tuning. It has simple status indication for power and overload diagnosis. Widely applied in conveyor equipment, packaging machinery and traditional production lines. This product is discontinued by Dart Controls, mainly supplied as industrial spare parts, complying with 125 series DC speed controller industrial standards.