Page 641 of Current Catalog by Moeller Electric USA

14/015 technical data iec ratings degree of protection given to electrical apparatus by enclosures and covers in accordance with iec 60 529 1st numeral protection of persons against contact with live parts ip 00 ip 20 ip 41 ip 43 no protection protection against accidental contact with fingers protection against accidental contact with tools etc protection against accidental contact with tools etc complete protection complete protection complete protection complete protection complete protection complete protection complete protection 2nd numeral protection of equipment against ingress of liquid no protection no protection drops of condensed water have no harmful effect no harmful effect from rain or water sprayed from vertical to 30° from horizontal no harmful effect from splashing water any direction no harmful effect from hosed water no harmful effect from hosed water no harmful effect from temporary flooding no harmful effect from being immersed in water no harmful effect from being immersed in water for an indeterminate period no harmful effects from water directed against the enclosure under very high pressure and from any direction high pressure steam jet hoses 80 100 bar protection of equipment against solid foreign bodies and dust no protection protection against solid particles 12mm diameter protection against solid particles 1 mm diameter protection against solid particles 1 mm diameter no harmful deposits of dust in the interior no harmful deposits of dust in the interior complete dust protection dust-proof complete dust protection dust-proof complete dust protection dust-proof complete dust protection dust-proof complete dust protection dust-proof ip 54 ip 55 ip 65 ip 66 ip 67 ip 68 ip 69k protection against electric shock to iec 60 536 iec 60 536 covers the erection of electrical equipment and its arrangement in electrical installations with rated voltages up to 1000 v ac and 1500 v dc with regard to protection against direct contact where operating elements such as pushbuttons and switches are located in the vicinity of life parts finger-proofing relates only to the operating device and only in the normal direction of operation a clearance of at least 30 mm radius must be ensured from the centre point of the device to any live parts degree of protection ip 20 is superior to finger-proofing in that it embodies protection against contact with electrical apparatus in any direction devices which are finger-proof and have degree of protection ip 00 can be provided with further protection against contact in the form of shrouding if so desired damp heat constant to iec 68 part 2 3 in this test the effects of a constant high level of humidity 93 +2 3 and a constant air temperature 40 ± 2° c are observed over a prescribed duration damp heat cyclic to iec 68 part 2 30 test db this test is used to assess the suitability of electrical products for operation and storage at high relative humidity levels combined with cyclical temperature fluctuations a test cycle consists of 12 hours at 40 ± 2° c with relative humidity of 93 ± 3° c and 12 hours at 25 ± 3°c with relative humidity of at least 95 ambient temperature ambient temperature is the temperature of the room e.g factory bay or switchgear room in which the open or enclosed device is installed and with the proviso that this temperature must not be significantly influenced by heat losses from the device cross reference for various iec ul/nema and csa standards type of equipment contactors circuit breakers air break switches control switches motor starters machine tool assembly motor control center enclosures based on nfpa-79 standard numbers iec 158-1 947-4 157-1a 947-2 408 947-3 337 947-5 292 947-2 204 439 144 ul/nema 508 ics-2 489 ab 1 98 ks 1 508 ics-2 508 ics 2 508a ics-2 845 ics-2 508 250 csa c 22.2-14 e 14 c 22.2-5 c 22.2-4 c 22.2-14 e 14 c 22.2-14 e 14 c 22.2-14 e 14 c 22.2-14 e 14 c 22.2-14 e 14 general information

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