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Panel Building The Importance of a U.L. Listing on your industrial control panel: OSHA requires it!! And they will FINE you. OSHA's regulation 29 CFR 1910.303 "equipment required or permitted by this subpart shall be acceptable only if approved". 29 CFR 1910.399 further clarifies the definition of "acceptable": If it is accepted, or certified, or listed, or labeled, or otherwise determined to be safe by a nationally recognized testing laboratory". Most often, enforcement only occurs after an accident and OSHA does an investigation to find the equipment was fabricated in-house and does not meet this requirement. This then results in a citation being issued, typically in the range of $150,000. You can get more details on OSHA's requirements for this at http://www.osha.gov/dts/otpca/nrtl/index.html Let us build your control panel and you won't have to worry! We are a certified U.L.508A Industrial Control Panel Shop and meet all of the requirements of OSHA, National Electrical Code and Underwriters Laboratories. Here is some advice also. If you are ordering equipment, make sure that the control cabinets are U.L. Listed because in Minnesota the Electrical Inspectors are starting to look for that sticker and require you provide one within a certain amount of time. Always specify equipment comes U.L. Listed and save yourself some big headaches.
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