EMA stands for the National Electrical Manufacturers Association. NEMA maintains a ratings system for industrial electronics enclosures, arranged by the environments which they are designed to withstand. This chart defines the ratings, the environment where each is typically used and the standard characteristics of each rating.
In music and everyday life, a tone represents a harmonic sound that sounds good to our ears. The noise, however, is the disharmonic sound that’s everything but desirable. When it comes to the electricity, we can only identify with the noise, as it’s something that can cause you a lot of trouble. This noise is…
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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
