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Small rectangular green circuit board with relay and terminal blocks, model XH-M203, 12V

YINGHUA

YINGHUA XH-M203 International Power Cord 12V

SKU CH-QSQD-YTJ7Y

Automatic water-level controller module switches pumps at 12 V

  • Automatic water-level control prevents pump damage
  • Operates on 12 V AC or DC supply
  • Full automatic switching simplifies system setup
  • XH-M203 module integrates relay for direct pump drive

Automatic water-level controller

The YINGHUA XH-M203 is a full-automatic pump switch module that monitors liquid level and activates a connected pump without manual intervention. It operates on 12 V AC or DC supply and suits installers who need reliable tank filling or drainage control in domestic or light-industrial setups.

Thermals noise and power draw

The solid-state relay produces minimal heat during normal switching cycles and runs silently because no mechanical contacts are present. Power consumption stays low while the coil is energised, so the module adds negligible load to the 12 V source.

Highlights

  • Automatic water-level control prevents pump damage
  • Operates on 12 V AC or DC supply
  • Full automatic switching simplifies system setup
  • XH-M203 module integrates relay for direct pump drive

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the XH-M203 water level controller and what wiring step is often missed?

Connect the sensor probes to the marked terminals, supply 12 V AC or DC to the power inputs, and wire the pump through the relay contacts; the step most often missed is linking the common and normally-open contacts for the pump circuit.

What maintenance will the XH-M203 relay module need over time?

Inspect the relay contacts periodically for pitting or carbon build-up and clean them if switching becomes unreliable; also check that the probe connections stay tight and free of corrosion.

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