Informative Annex 9 - American Petroleum Institute

After some recent studies the comparison chart will be redone in the future and will indicate a Type 4 and a Type 4X is equivalent to an IP 66 and the Type 6P is being changed to an IP 68. ... "Enclosures for Electrical Equipment (1000 Volts Maximum)." ... and it is the responsibility of the user to verify the enclosure rating necessary for the ... ................
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