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Small rectangular green circuit board with screw terminals and a potentiometer knob

Ruth's sister

Ruth's sister 10A PWM DC Motor Controller 12V-40V

SKU CH-2MS6-WZG1G

Controls DC motor speed via PWM from 12 V to 40 V at up to 10 A

  • Controls motor speed via PWM up to 10A
  • Operates from 12V to 40V DC supply
  • Handles continuous current loads of 10A
  • Compact internal power cable form factor

10 A PWM Motor Controller for 12–40 V Systems

This DC motor speed controller handles up to 10 A of continuous current across a 12 V to 40 V input range. It uses pulse-width modulation to vary motor speed without the losses of linear regulation. The module suits hobbyists and engineers building custom motion projects such as conveyors, fans or small machine tools.

Thermal Behaviour Under Continuous Load

During sustained operation the controller dissipates heat proportional to the load current and duty cycle. At the full 10 A rating the on-board MOSFETs and PCB traces warm steadily, so adequate airflow or a heatsink is required to keep junction temperatures within safe limits. Builders who need prolonged peak current without extra cooling should consider a higher-rated unit.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 91% of the 7,839 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How much heat or noise does the 10A PWM controller produce during continuous operation?

The controller runs silently with no fan; heat output depends on load and airflow in your enclosure.

What power source and motor do I need to use this 12V-40V controller?

You need a DC supply between 12V and 40V and a compatible brushed DC motor rated for up to 10A.

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