Contactors vs Relays

Contactors usually carry high electrical loads, so they frequently come with bonus safety features like spring-loaded contacts and arc suppression. In addition, many contactors will also be connected to overloads, which interrupt circuits if a current exceeds a specific threshold. This helps keep the equipment safe from damage from electrical currents. While some relays will have overload protection, most do not. 

Application

Relays are normally only used for single phase purposes and are rated for 250V maximum. In contrast, contactors can be used in 3-phase applications and are rated for as much as 1000V.

Why Do Contactors and Relays Matter? 

Circuits can be overloaded if they aren’t using the appropriate equipment. Therefore, a relay should only be used when the current is less than 10A, with 250VAC on a single phase. If your electrical needs require more than that, then it’s vital that a contactor is used instead. Most property owners are not aware of whether they are using a relay or contactor. However, if you are experiencing frequent problems with your electrical circuits, there are many factors to consider. Be sure to call a trusted local electrician in Dallas so you can ensure that your electrical components are properly installed and in working order. At Mr. Electric of Dallas, we offer professional inspections for DFW area homes and businesses. We also offer emergency repairs and replacements if necessary. 

Need a Certified Electrician in North Texas? Call Mr. Electric of Dallas Today

Are you having issues with your circuits or wiring? Then call the experts at Mr. Electric of Dallas. Our team of certified, licensed and insured experts are always ready to lend a helping hand. We proudly offer a wide range of commercial and residential electrical services including electrical system installation, wiring upgrades, circuit repairs, panel box replacement, lighting system installation and more. Our local electricians provide quality, dependable services in Dallas, North Dallas, Lakewood, highland Park, Farmers Branch, Inwood, University Park, Coppell, Irving, Oak Lawn, Arlington and surrounding DFW cities. Contact our office to learn more about our offerings or to schedule a convenient appointment with a licensed plumber near you.