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Small green circuit board with a silver knob and two wire leads

Ruth's sister

Ruth's sister 2000W AC 220V Thyristor Dimmer internal power cable

SKU CH-9KGE-ZGKMC

An internal power cable with a 2000W thyristor dimmer for AC 220V motor speed and temperature control

  • 2000 W capacity handles heavy AC loads
  • Adjustable 50–220 V output for precise motor speed control
  • 1200 V thyristor with peak absorption circuit extends service life
  • Compact 36 × 48 mm FR-4 board fits tight enclosures
  • 6 mm epoxy copper laminate withstands high operating temperatures

High-power thyristor dimmer for 220 V AC circuits

This 2000 W thyristor voltage regulator connects in series with AC 220 V loads such as lamps or motor-driven appliances. It uses a silicon-controlled rectifier rated at 1200 V and 25 A to adjust output voltage from 50 V to 220 V via a precision multi-turn potentiometer. The module suits hobbyists and technicians who need adjustable power control for resistive or inductive loads within the rated limits.

Regulation range and circuit protection

Output voltage is continuously variable between 50 V and 220 V AC, allowing fine speed or brightness control. A built-in peak-voltage absorption circuit protects the thyristor from transients, extending service life. The FR-4 epoxy circuit board is 1.6 mm thick and measures roughly 36 mm by 48 mm, housed in a 48 mm by 60 mm by 28 mm enclosure that resists high temperatures during operation.

2000 W capacity and load boundaries

The unit handles up to 2000 W at 220 V, making it suitable for larger incandescent lighting, universal motors or heating elements. Loads exceeding this power rating or requiring voltage outside the 50–220 V window cannot be driven reliably. It is not suited for applications needing isolated low-voltage outputs, digital control interfaces or certified safety approvals.

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 do I decide whether the 2000W rating suits my load?

Check the appliance nameplate; if its wattage is at or below 2000W the dimmer can handle it, otherwise choose a higher-rated unit.

What does the AC 50-220V output range mean when the dimmer is installed?

The knob adjusts the voltage fed to the motor or lamp continuously between 50V and the full 220V mains, giving smooth speed or brightness control.

Which mains standard does the screw-terminal connection follow?

The board is designed for 220V AC single-phase supplies and fits in series with the live or neutral conductor of a standard household circuit.

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