How can I distinguish between the 220V AC coil and the 24V coil on the ASCO solenoid valve?
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Over time, the details on the side of the product have become so blurred that it’s impossible to tell whether it’s 220V or 24V. How can one distinguish between them?
I’m not quite sure about this; can’t the model number be seen at all? It should be available in the product selection or instructions
If it is in use, measure the voltage. It can also be measured in the cabinet based on the tag number. If the power rating is known, the resistance can be measured to perform the calculation.
If you can’t find a good solution, use this less efficient one. First, try connecting it to 24V; if it doesn’t work, then connect it to 220V
The title seems to suggest a question about an unmarked coil – the person wants to know its voltage and intends to use that coil in another application. From the content, it seems you want to know the supply voltage for this coil so that you can replace it later, right?
This post was last edited by newttang on 2015-6-14 at 18:03. You can find out by measuring the coil resistance; for DC circuits, it’s usually around one to two thousand ohms. Some models come with diode protection, so it’s necessary to measure both the positive and negative sides. The resistance of the communication circuit should be relatively high, generally over 5 kΩ.
You can find out by checking your diagrams, or by measuring the resistance; generally, the resistance of a coil operating at 24DCV is around 0.5K, while that of one operating at 220ACV is between 2-5K. Solenoids come in different sizes, so this is just for reference.