NFPA 79 is the Electrical Standard for Industrial Machinery. It picks up where UL 508A stops, at the enclosure wall, and covers the electrical...Read More

If you build industrial control panels or machines, the UL Mark is not a marketing badge. It is what the inspector looks for before a panel gets...Read More

UL 489 is the standard for molded-case circuit breakers, the devices that provide branch circuit, feeder, and service protection in a control panel....Read More

UL 508A is the standard a panel shop builds to and the label an inspector looks for on an industrial control panel. It is also where a lot of...Read More

Every power drop in a Northern California or Northern Nevada facility ends the same way. A human hand mates the connector. During the build. During...Read More

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Your meter says the contactor is fine. Whether it can still break a 1,500-volt DC arc is a different question and nothing on the outside will tell...Read More

Energy efficiency has long been treated as someone else's problem. The facility team monitors the utility bill. Operations looks for waste on the...Read More

A gas filled DC contactor can pass inspection and still lose the very condition that makes it safe to interrupt DC power.Read More

Sustainability goals are no longer abstract targets that sit in annual reports. In industrial controls, they now show up as design constraints,...Read More