Electrical Product Resources

Dry Type Encapsulated Power Distribution Transformer Sizes, Applications and Maintenance

Encapsulated Versus Non-Encapsulated Dry Power Transformers Encapsulated (non-exposed) dry-type power distribution transformers, also known as cast-resin transformers, provide better protection, environmental friendliness, and require less maintenance, while non-encapsulated transformers offer flexibility, cost-effectiveness, and potentially higher efficiency. You may also hear them called non-oil filled transformers, a reference to Oil-filled transformers which use liquid for cooling. …

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Installing Electrical Subpanel, Breakers, Wiring for Load Protection and Electrical Safety

Training

An electrical subpanel is a reliable assistant to a main electrical panel. The subpanel distributes the workload by handling specific circuits. The electrical subpanel and the main panel are a dynamic duo that together manage the electrical system. If you’re not experienced with electrical subpanel installation, grounding, load requirements, testing and electrical codes, consult a licensed electrician…

Upgrading, Replacing or Installing Your Electrical Switchboard?

Training

Are you looking into the cost of upgrading, replacing or installing an electrical switchboard for your facility or building power distribution system? This is a big decision, and to understand just how important switchboards are, let’s look at an analogy that helps explain what electric power switchboards are and what they do in your facility.

Replacing or Retrofitting a Lighting Control Panelboard?

Training

If you’re replacing, retrofitting or upgrading a Lighting Control Panelboard, it helps to know that your lighting panelboard will have different installation and maintenance requirements than a power distribution panelboard.

Replacing an Electrical Power Distribution Panelboard?

Training

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: Introduction, Types, Functions, and More

Training

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…

Panelboards

Guides

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 To Us

Guides

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…

Temporary Power Solutions

Guides

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.

Contactors

Guides

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 101

Safety

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 – How to Keep the Power On

News

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…

5 Tips on How to Choose a Reliable Surplus Electrical Vendor

Training

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 …

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Important Things to Consider When Buying Surplus Electrical Equipment

Training

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. …

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What’s the Difference Between Short Circuit and Overload Conditions?

Safety

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…

GE Armor Clad Bus Plug

Training

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…

GE Spectra Series Bus Plugs

Training

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.

Can Circuit Breakers Go Bad?

Training

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 …

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How To Replace and Install Circuit Breakers

Training

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. …

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Circuit Breakers Installation

Training

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 …

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