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.

Surge protection can keep expensive electronics and appliances safe from Kauai’s common power surges.  During our storms, voltage spikes can be harmful to appliances and electrical devices in your home. An increase in voltage above an appliance’s normal operating voltage can cause an arc or high surge of electrical current within the appliance.  The heat created in the arc and/or the power pulse causes damage to the electronic circuit boards and other electrical components.

Example:

A customer’s  washing machine stopped working properly,  after having purchased it fourteen months ago from a major retailer on our island.  Were they covered under product’s warranty?  No.  That lasted for one year with no added extended service protection (which can cost about $400 more on top of the appliance floor price).  They called the retail store’s service man to come out and repair it.  Seven days and $230 dollars later, the small electronic part was replaced, back and running for the time being.  What caused the broken part?  Most likely a large power surge or a series of smaller surges that can break down the inner electronics–an appliance only fourteen months old!

What about your appliances or electronic equipment?    Are they protected from the next storm or outage?

Solution:

A surge protector…..Installing a whole building surge protector connected to your electric panel gives you that needed protection. It absorbs the spiked energy caused by these surges from our power lines or lightning strikes.  The surge suppressor Blue Sky provides, protects electronic devices from higher than needed voltage levels. It protects electronic devices (televisions and computers) and  appliances (washing machines and dryers) with electronic parts from surges that originate from within the home, from the utility service and from other wires that connect the devices to the outside, such as telephone and cable television connections.

Call us so you can protect your appliances and electronics from costly electrical surges.  Let’s not get too acquainted with the appliance repairman. Call: (808) 647-0599

It doesn’t feel like it yet, but fall is coming! Cooler weather and clearer nights are on the way; perfect time for some home hot tub relaxation. But when our electricians in Baltimore talk hot tubs, we have some concerns. These stem from various issues, but they can all mean one thing in the end: danger.

At Kolb Electric, your safety always comes first. Yes, even before our service (though you might argue that they go hand-in-hand; we would). If you’re considering a hot tub installation, or you’re just getting primed and ready to make use of the one you have, there are some factors we would like you to consider.

Looking for industry-leading electricians in Baltimore for your hot tub or home appliance wiring? Contact Kolb today!

The definition of the word faulty is “working badly or unreliably because of imperfections”, so when we’re talking wiring, faulty can mean old or damaged, or poorly installed. Both of these are equally dangerous and can lead to electric shock, electrocution, and fires! It’s serious business and we aim to help ensure you never deal with these potential threats.

So why are we so worried about hot tubs? Aside from the fact that they’re almost literally giant bathtubs with an electric current, once they’ve been installed many homeowners opt to never have the wiring inspected for water damage or replaced.

And even further beyond, some homeowners regard hot tub wiring as a DIY job. It’s really, really not. Wiring can get complex, and when you’re dealing with something as potentially volatile as electricity (especially when that electricity is surrounded you water!), even the tiniest mistake can become a harmful and even deadly issue.

So how do you get the glorious hot tub you’ve always dreamed of with none of the risks? Do these:

Hot tubs are made to be enjoyed, not worried over! When you’re ready for an installation, trust in the team at Kolb. Or if you’ve already got a hot tub, let our team make sure your system is working safely and effectively. Contact our experts today for the superior service and safety assurance you deserve!