24VDC vs. 120VAC Relays: How to Choose the Right Coil Voltage for Your Industrial Control Panel.

 

​When constructing or upgrading an industrial control panel one of the design questions is what coil voltage to use on your relays. Two of the most common 24VDC and 120VAC. Every style has its own pros and cons, and selecting one can be tough. Nonetheless, with a basic idea of how they operate and what they’re ideal for, you can venture into purchasing them wisely. Here at HINORMs we want to help by explaining this differences and helping you select the right relay for you panel.

Real World Differences Between 24VDC and 120VAC Relays

24VDC = 24 volts DC 120VAC = 120 volts AC The main distinctive feature is the method through which the electricity is supplied. DC power is steady and in one direction, while AC power goes in back and forth waves. This means 24VDC Relay voltage regulator can be useful for easily controllable, low power tasks, while 120VAC relays can do higher power projects, but there’s a higher risk of getting shocked since its a higher voltage.

Things to keep in mind when choosing coil voltage for control panel in industrial applications

There are a few factors to consider when deciding between 24VDC and 120VAC for your control panel. First, consider the demands of your power supply. If you are dealing with sensitive electronics, using something as low as 24VDC can be safer and ultimately, protect your gear. Also, consider the environment. When you are dealing with the problem of electrical noise, a DC relay may work better, because it is not as much affected by noise as an AC relay.

The significance of selecting the best coil voltage to achieve best performance

It is vital to make sure you use the automatic voltage stabiliser for your control panel. If the voltage is too low, you may have no idea what you’re switching, and if it’s too high, you risk burning out the relay, if not the rest of the circuit. Too low, and the relay may not work at all. Yours may vary, as well as your relay, be sure to verify with your relay and panel. This way you can prevent expensive errors and make sure your panel operates smoothly.

Pros and cons of 24VDC & 120VAC relays

24VDC relays are typically more stable in low voltage applications and create less interference. They also are safer to use, which makes them a good option for panels that get adjusted or maintained a lot. 120VAC (and 240VAC of course) relays are the opposite, high power and often cheaper. But they can be dangerous to work with due to the high voltage, and are more sensitive to voltage spikes and electrical noise.

Choosing the right coil voltage for your industrial control panel application

To begin, audit how much power your panel needs and what is connected to it. If your main concern is safety and noise, then a 24VDC relay Products. If power is what you need, then n Power relay will do the trick. Always verify the ratings on your relays, and if you’re unsure, talk to a professional. And don’t forget: selecting the proper relay now can save you time and money later, so it’s best to get it right the first time.