Positioner protection rating

2016-07-18View Original

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I’m seeking help from the experts on this forum: In the data sheet provided by the design institute, the protection rating of the locator is described as EE*aⅡCT6+DIPA21ATA 135°. I know that this refers to a locator intended for use in dusty environments; I would like to know what the meaning of the latter codes is. “ATA 135° ” these ones?

Reply #22016-07-19

I think it should be the maximum allowable surface temperature of the equipment; the unit used there should be degrees Celsius, not just degrees.

Reply #32016-07-19

135 is the temperature allowed by the device. As for the ATA value before that, do you know what each digit represents?

Reply #42016-07-19

ATA – I can only guess whether it refers to the allowable temperature for Class A devices; I’ve never seen this notation before. You can refer to GB12476.2-2010 for information

Reply #52016-07-19

Thank you. Can it be understood this way: the first A refers to a Class A device, while TA represents temperature?

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