You’re probably familiar with the electrical distribution panel in your home when your lights have gone out because electrical appliances overloaded the system. In this article we’re going to expand on what you know and look at what’s inside heavy-duty Electric Power Distribution Panelboards in industrial and commercial buildings.
Contactors are the unsung heroes of modern-day electrical systems. These often-overlooked devices play a crucial role in keeping our homes, businesses, and industries running smoothly. Contactors are versatile and widely used in industrial, commercial, and residential applications. Some applications you might recognize include electric motors, lighting circuits, and heating and cooling systems. Suffice to say, contactors ensure the safe and reliable operation of electrical systems and equipment…
Need to add accessories (shunt trips, auxiliary switches, metering options, etc.) to your board? Have provisions and other specifications or preferences for your build? Customization can greatly enhance the functionality and efficiency of your electrical distribution system while ensuring it aligns with your unique needs. Our team can assess your specific requirements and ensure that the customization meets safety and code compliance standards. Let us know what you need and we will help you design a panelboard that meets your specific project requirements.
Sell us your used/surplus electrical equipment and make extra cash! Easy transactions, quick payment, and top prices. Why sell your used equipment? Asset liquidation – At any business, there comes a time when a good spring cleaning is necessary. You may find that your business has excess stock or surplus assets that you no longer need. Recycling – The amount of electrical & electronic equipment waste has risen steadily over the last decade…
Our experienced Sales Engineers will help streamline the design process. We will work with our production team to meet your tightest delivery requirements with most temp power orders shipping within 1-2 weeks ARO. With temp power constantly changing, RESA is very flexible and responsive with change orders right up to the ship date. You are not stuck with the material once the job is complete. RESA offers both guaranteed buy-back and rental options to help keep your net costs down.
Relectric offers a wide variety of low voltage contactors. NEMA & IEC standards. Open & enclosed options. For motor circuits, lighting circuits, and control circuits. Popular manufacturers (siemens, general electric, and more). New, used, and recertified (professionally tested with guaranteed performance). A contactor is an electrical device that switches an electrical power circuit on and off. Contactors can switch thousands of amps in low and medium voltage 3-phase systems…
Ground fault and arc fault are sometimes used interchangeably but they are actually two separate things. Ground fault is a type of short circuit sometimes known as “short to ground.” It happens when current going out on ungrounded phase (energized “hot” current) accidentally makes contact with a ground path. Electricity always wants to find a path to ground. Sometimes this unintentional path to ground is a person’s body. Ground fault causes electric shock that could be severe or fatal to people…
Coronavirus is the buzzword. We are making history in our current state of global pandemic. If you’ve been living under a rock, COVID-19 is a disease that affects the respiratory cells. More specifically, SARS-CoV-2 is the virus that enters the respiratory cells, replicates, and proliferates throughout the lungs, causing pneumonia. We won’t get too deep in the science, but let’s talk about what’s happening outside and what this means for electrical contractors…
Price is usually one of the main deciding factors that people look for when buying anything. However, we all know that not all vendors are created equally – so to speak. Opting for a vendor because of their cheaper price points may become expensive in the long run. There are better ways to choose a …
5 Tips on How to Choose a Reliable Surplus Electrical Vendor Read More »
General Advantages General Disadvantages 1. Cost efficient 1. Limited availability of uncommon items 2. Readily available inventory 2. New technology can be slow to market 3. Minimal obsolescence in cycle 3. Requires more attention to vendor qualifications 4. More choices for buyers sourcing material 5. Focused on medium and small size contractors 6. …
Important Things to Consider When Buying Surplus Electrical Equipment Read More »
Short circuit and overload conditions are a bit different but they both pose similar dangers. Read on to see their slight differences. Short Circuit – We know that current flows in a path from point A to B – this is considered one phase. A short circuit occurs when current flow deviates from that path in two different ways: phase-to-phase (direct short) or phase-to-ground (ground fault). When current flows from one phase to another, also known as a direct short, that huge amount of current…
This General Electric Armor Clad (AC) plug is an older bus plug version that’s been replaced by the newer GE Spectra bus plugs. The AC plug family is one of the most popular GE bus plug systems. This family of bus plugs has been in the market for many years. The 600V line are the most popular varieties in the family. They have amperages that range from 15A to 800A. Although these bus plugs have been replaced by the newer version (GE Spectra bus plugs), Armor Clad…
General Electric (GE) Spectra Series bus plugs replaces the older generation Armor Clad plugs, which had no current protection bust are still also popular nonetheless. Nowadays, these newer vintage Spectra bus plugs are widely used and come in different configurations. They are available as fusible or circuit breaker type plugs with either a 3 or 4 wire. These plugs have various fuse classes, frame types, and interrupting current rating. You can also choose to get them with or without ground.
If you’re asking “can circuit breakers go bad?” – it’s most likely because yours stopped working, or at least it seems like they’ve stopped working. The short answer is – yes, they can actually go bad. Like many electrical items, circuit breakers could break down due to a few reasons. It’s a good idea to …
Replacing and installing circuit breakers could get tricky, especially if you’re a beginner and not a hundred percent sure what you’re doing. First, always be safe and consult a professional electrician. If you have electrical skills to replace and install breakers, then realize that circuit breakers normally do not need to be replaced unlike fuses. …
Electrical Panel Upgrade: Should You Replace the Entire Box? If you live in an older home or just need to upgrade your electrical panel, there are some things you may want to consider before you move forward with the project. Here are some things to think about. A panel upgrade generally requires replacement of the …
The National Electrical Manufacturers Association (NEMA) set safety, reliability, and efficiency standards. These standards apply to enclosures, which vary in the way they’re constructed for their specific use and environmental conditions. There are many types of NEMA enclosures that we have listed here. It is a good idea to take note of the enclosures that …
So you want to know what the most popular PLC brand is that other contractors/engineers are using. This is a valid question because who would not want the cream of the crop? The problem is, there are so many great Programmable Logic Controller (PLC) manufacturers that it’s a little tough to say which is the …
Here is a protection type reference chart guide. Find protection type, breaker type, and their description. Check what you need for your job and/or project.
In 1887 Nikola Tesla invented an alternating current (AC) Motor to harness the power of electricity. It is a great invention but not as useful unless operators could turn the motor on and off. Therefore the “knife switch” was created, which connected the power to the motor when the operator manually pulled the switch to the “on” position.