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Compact PWM speed regulator board with terminal connectors and green circuit board

Ruth's sister

Ruth's sister WK811 8A PWM Speed Regulator internal power cable

SKU CH-9NW5-KHBAS

A PWM speed regulator for DC spindle motors accepting 110–220 VAC input and rated at 8 A

  • Regulates DC spindle motors via PWM control
  • Handles 110 to 220 VAC input range
  • Supports up to 8 amps continuous current
  • WK811 model designed for internal power integration

PWM Speed Regulator for DC Spindle Motors

This WK811 module regulates DC spindle motor speed through pulse-width modulation. It accepts an AC input range of 110 to 220 volts and supports loads up to 8 amperes. The unit is designed for internal installation in equipment that requires variable motor control.

Simple Wiring With Clear Polarity Markings

Installation involves connecting the AC supply to the labelled input terminals and the DC motor to the output side. The most common issue is reversing the input and output connections, which prevents regulation. Ensure the supply voltage matches the 110 to 220 volt range before applying power.

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Price $27.99
Pricier than about 70% 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 can I verify the WK811 is regulating my DC spindle motor correctly after installation?

Apply 110-220VAC input and measure the PWM output with a multimeter; the motor speed should vary smoothly across the control range without stalling at low settings.

What comes with the WK811 8A PWM Speed Regulator and what must I source separately?

The unit itself is supplied; you must provide a 110-220VAC mains feed, a compatible DC spindle motor, and any enclosure or wiring accessories required for your installation.

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