RioRand 7-70V 30A PWM DC Motor Speed Controller for Brushed Motors

About this item

• 1.Wide Voltage & Scientific Power Matching — Exclusively designed for brushed DC motors, this 7-70V wide-range controller provides 1%-100% stepless speed regulation with quiet 12kHz PWM operation. It follows precise graded power limits: 12V≤250W, 24V≤350W, 48V≤450W, 60V≤400W. A 5-10V voltage margin is strongly recommended to prevent overload damage, perfect for DIY builds, electric ride-on vehicle mods and small electric devices.
• 2.Low Heat & Heavy-Duty Durability — Built with high-voltage MOSFET and three 100V capacitors, paired with a full aluminum heat-dissipating housing to reduce heat buildup and eliminate vibration noise. The stable upgraded circuit supports long continuous runtime for workshop tools, agricultural pumps and marine trolling motors for reliable daily light-duty use.
• 3.Accurate Load Voltage Guidance — Solves the most common user misconception: unloaded PWM controllers show input voltage normally. Real adjustable speed and output voltage can only be measured with a loaded brushed motor. Delivers precise tuning for DIY robotics, mini pumps, ventilation fans and small grinding tools.
• 4.Foolproof Wiring & Flexible Brake Control — Clearly marked DC input polarity avoids reverse connection damage. Motor outputs are non-polarized for easy rotation reversal. Integrated run/stop/brake switch and 15cm detachable potentiometer allow flexible external panel mounting for all modification projects.
• 5.Overcurrent Protection & Smooth Performance — Comes with a spare fuse for reliable overcurrent protection against sudden current surges and burnout. Optimized circuitry ensures ultra-smooth speed transitions and stable operation, ideal for hobbyists and small equipment maintenance.