Q: The intrinsic safety spec I’m reading calls for an isolated ground. Isolated from what?

Answer: A true isolated ground is not connected to any ground that can ever carry fault current from unrelated parts of the electrical system. It is best to run it directly to grounded building structural steel, an underground metal water pipe, or a separate grounding electrode from the building electrical service as described in Article […]

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Time Delay Relay Functions Explained

Understanding the differences between various time delay relay operations such as On-Delay or Interval can be a bit confusing.   These simple diagrams may make it easier to visualize what’s happening during the timer operation(s).                       At Kele, our goal is to make product selection and […]

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Extend Your Reach with the ST-A Series by Precon

Kele’s Precon brand has a sensor solution for ALL your application needs, even the odd ones! Job site situation #1: You need a temperature sensor for your tank or cooling tower sump, but they don’t make one long enough. Special ordering one seems daunting. What if it doesn’t work out and you can’t send it back? […]

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Is Saving Energy Really that Hard to do? Apparently it is for Some?

As many of us have been told for years, programmable thermostats are worth their weight in gold when it comes to energy savings. Well, maybe not gold these days, but you get the point. According to the Department of Energy, heating and cooling costs are one of the largest expenses associated with commercial buildings. Savings from using […]

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Coming Soon—New Kele.com & 2014-15 Kele Catalog

At Kele—we’re committed to providing you the best products, services and solutions in the building automation and HVAC/R industries. And we’re starting 2014 off with two new solutions that will help you get the job done right! In the first quarter we will be launching a new Kele.com and will be releasing our 2014-15 Kele […]

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THE (RS-485 Network) TERMINATOR Or The Dance of the Data Pulses

If you’re involved with building automation systems you know (unless you’ve been living under a rock like the guy in that insurance commercial) that the modern trend is to connect all your building controls together on networks. Networks make it easy to add or move control nodes as your building control needs change since the […]

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Kele Celebrates 30 Years!

Dear Valued Customer, I would like to take this opportunity to thank you for your business. This year we celebrate 30 years servicing the needs of the building automation products industry and we take great pride in our achievements by offering a wide selection of products from almost 300 manufacturers. 30 years ago Kele’s founders […]

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Humidity Sensors in Distress

Let’s start with a riddle: Q: They’re dirty, they’re annoying, they cause all sorts of trouble, they make everyone uncomfortable, and they’re hard as heck to catch; but, they’re not the pesky flies that buzz around one’s picnic potato salad? What are they? A: Humidity sensors abused by hostile environments. You’d be surprised where we […]

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