5-pin SPDT (single pole, double throw) automotive relay.

Relays are essentially two parts in one package. The first part is an inductive coil (pins 85 and 86). This coil is the “trigger” function of the relay. By applying both a positive (+) and ground (-) to the contacts, current passes through the coil. When current passes through the coil, a magnetic field is generated and moves the switch (the arrow in the diagram). This is where the second part of the relay comes into play.

The second part of the relay is the “switch.” The switch has three interface contacts—common, normally closed, and normally open. “Normally” refers to the state of the relay not being energized.

While relays can be used for virtually any task, there are some very useful, simple applications for adding LED lighting to a vehicle. Please note that this wiring only pertains to the relay—not the wires in the vehicle. Before interfacing with a wire in a vehicle, always ensure you test the wire with a digital multimeter first to confirm circuit function.

Positive Switching

Positive switching is used for applications where the “trigger” for your switch or circuit is positive. This could be an ignition, brake, or reverse light wire for example.  This could be used for applications such as off-road light bars, work lights, additional brake lights, and other exterior lighting.

Negative Switching

Negative switching is used for applications where the “trigger” for your switch or circuit is negative. Negative triggers are often found in door, hatch, and trunk triggers as well as many interior switches. This could be used for applications such as footwell lighting, truck bed lighting, under-hood lighting, and other interior lighting.

Switch Activated With Ignition Override

This is useful for applications where you want to turn your light on or off with a switch but only want the light to remain on when the car is running or key is in the “ignition” position. The main advantage to this is—even if the switch is left on—the light (or output circuit) will shut off when the key is turned off so that the battery will not be run down.

For technical questions, don’t hesitate to call us toll free at 866-590-3533. Our customer service and technical support teams are available from 8:30 a.m. to 8 p.m. CDT Monday-Thursday and 8:30 a.m. to 4 p.m. CDT on Friday.

Your home’s circuit breaker is a valuable line of defense in protecting your home. All your electrical appliances rely on your home’s circuit breaker which makes it that much more important. Replacing your circuit breaker can be such an economical investment in protecting your home. Dealing with flickering lights, poor performance from your appliances such as your stove or microwave, and a smoking scent from your panel are just a few of the warning signs when it comes to your circuit breaker. Learn more about the warning signs so you can avoid a catastrophe and replace your circuit breaker before it’s too late.

One way to tell if you need a circuit breaker replacement is to sniff around and see if you smell a burning odor coming from the panel. If so, that means the wires and insulation have become overheated. Ultimately your circuit breaker is failing to protect your home from an electrical short elsewhere. Shut off the main power to the house immediately and call an electrician for an home, potential buyers are going to be hesitant to put down an offer. Everyone wants to purchase a home that is safe and secure, which is why an upgraded breaker is that much more valuable.

It happened just like I hoped it would. I had found an electrician in Glendale who was not only efficient at his job, he knew a lot about the area. I was not familiar with Glendale, California, but I was pleased to be outside of busy downtown LA. House sitting for friend who was in Europe gave me the opportunity to help her and enjoy a warmer climate for a month in the winter. The day after I arrived, I began having issues with the electricity. I could not use the coffee maker if the toaster or microwave was on, and a lot of the interior lights flickered. The house was at least 60 years old, and my friend was planning to remodel next spring. Through an email she gave her approval for me to find a Glendale electrician to solve the problem, at least whatever was necessary to keep me safe and cozy.

Even though it was easy to locate many companies by typing “electrician in Glendale CA.” into an online search, I had no idea how to pick the best one. Probably because I love to play with words, I chose to call The Electric Connection in Glendale; anyone who makes the most out of words and their meanings is fine by me. It was the perfect choice. The local Glendale electrician showed up right on time ready to perform major electrical troubleshooting, and as a bonus I got to learn more about Glendale. He shared with me his favorite places to visit. He was still very excited that he had recently been treated to a hot air balloon ride, and that started us talking about balloons.

My hometown is Albuquerque, so I proceeded to tell him about the International Balloon Fiesta that happens there every year. Talk about a whole new kind of light bulb! There is nothing like the night lit up by 600 plus hot air balloons as they all power up the propane and make the balloons glow simultaneously at least two or three evenings at each year’s event. They have other spectacular events too: races to win a car, special shapes, fireworks and early morning ascents into the sky. It is one of the most photographed annual events in the world. Those balloons may be powered by propane, but the event itself is electrifying.

We settled up that afternoon, after this very knowledgeable Glendale electrician had completed some electrical rewiring and a panel upgrade. He also provided an electrical bid at the owners request for an electrical spa hook up, some outdoor lighting, having a chandelier replaced in the dining room, and having some smoke detectors installed where they were needed. On top of that, he gave me the name of the place that provided balloon rides since I told him I had enjoyed several but would love to take one that offered a new landscape to witness. I shared with him information about the next balloon event back home. He seemed pretty intent on making it happen next October. Just a thought — I wonder if The Electric Connection would let this Glendale electrician bring his electrical tools with him when he visits. In the meantime, with my electrical problems solved, I am off to see Glendale from a point above.

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The secret of creating a great home entertainment system is designing a layout that fits into your home while keeping hidden as much of the understructure (i.e. the wiring) as possible. To achieve this, some homeowners hire professional electricians to send wires through the walls and ceiling. But people often take on the work as a do-it-yourself hobby. Although this is a much better DIY project than, say, attempting to install a furnace or an air conditioning system on your own (you should never try either), it can sometimes lead to wiring issues that are difficult to diagnose and fix. When problems crop up, it’s best to call in an electrician with knowledge of home entertainment systems to assist you.

You already have a smart phone – maybe even a smart thermostat. What's next? Believe it or not, refrigerators are next in the line of devices with advanced features and technology to improve our domestic lives. A new smart fridge, manufactured by GE, is scheduled to come on the market this spring.

Welcome to the Future

For the average household, the refrigerator is the third-largest energy drain after the HVAC system and the hot water heater. That means there's a lot of room to improve on efficiency.

Your garden-variety refrigerator really only has one setting to manipulate: the temperature. And the EPA recommends setting it between 35 and 38 degrees, so there's not a lot of leeway in that regard before you risk spoiling your food. The real value in a smart fridge  is in its communication with you, reminding you to adjust your behavior and not waste any unnecessary energy.

For example, if you leave the door open, a smart fridge can alert you to close it rather than wasting all that cold air. If it's time to clean the coils, it gives you a heads up, so it can continue to operate at peak efficiency. If the power usage suddenly spikes for no apparent reason, the fridge lets you know so you can have it serviced to correct the problem.

The EPA is encouraging manufacturers to include such smart features in their products. “These features would offer consumers more ways to reduce the energy consumption of their refrigerators and freezers, help lower their utility bills, and better protect the environment and the climate,” the agency says. “Refrigerators and freezers with connected functionality will also be “smart grid”-ready, meaning that with consumer permission, they will be able to respond to utility signals, including curtailing operations during more expensive peak demand times.”

Savings Beyond Belief

If your refrigerator is more than a decade old, it's costing you more money than it should in electricity usage. If it's more than two decades old, it's really draining your finances. That good news is that the new models are so efficient they could pay for themselves in utility savings within a few years. New federal standards kicked in for refrigerators last fall, which means that the latest models are performing at an all-time peak.

When you go fridge shopping, make sure you purchase a model that bears the Energy Star logo, which means it performs at least 10 percent above and beyond the minimum federal efficiency requirements. “We can all do our part in meeting the challenge of climate change,” said Janet McCabe, Principal Deputy Assistant Administrator for EPA's Office of Air and Radiation, in a press release. “By choosing Energy Star appliances, families can save energy, save money, and reduce carbon pollution.”

If every fridge and freezer in the country were updated to meet just the minimum requirements, homeowners would save a cumulative $890 million annually on their energy bills. Even if your share is just a small fraction of that, every bit counts.