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	Database	Author	Size	Date	Download
	TechLibrary with Glossary	Dipl.-Ing.(FH) Karl Loncarek	1.91 Mb	07/09/2004	Download

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Protection of devices: "IP Protection classifications" IP Definitions See also IP Protection classifications according to DIN 40050/IEC 529  The Ip Code for environmental classifications is arranged much like a drive model number as seen here: IP 2 3 C H 1. Code Letters (International Protection) 2. First Characteristic Numeral (0-6 or X) 3. Second Characteristic Numeral (0-6 or X) 4. Additional Letter (optional, A, B, C, or D) 5. Supplementary Letter (optional, H, M, S, or W)   The two additonal characters in the IP code refer to special situations such as differing degrees of specific protection against hazardous parts.   First Numeral Brief Description Definition 0 Non-protected   1 Protected against solid foreign objects 50 mm diameter and larger The object probe, sphere of 50 mm shall not fully penetrate. 2 Protected against solid foreign object 12.5 mm diameter and larger The object probe, sphere of 12.5 mm shall not fully penetrate. 3 Protected against solid foreign objects 2.5 mm diameter and larger The object probe, sphere of 2.5 mm shall not fully penetrate. 4 Protected against solid foreign objects 1.0 mm diameter and larger The object probe, sphere of 1.0 mm shall not fully penetrate. 5 Dust protected Ingress of dust is not totally prevented, but dust shall not penetrate in a quantity to interfere with satiyfactory operation of the apparatus or to impair safety. 6 Dust-tight No ingress of dust.   Second Numeral Brief Description Definition 0 Non-protected   1 Protected against vertically falling water drops Vertically falling drops shall have no harmful effects. 2 Protected against vertically falling water drops when enclosure tilted up to 15ш Vertically falling drops shall have no harmful effects when the enclosure is tilted at any angle up to 15ш either side of vertical. 3 Protected against spraying water Water sprayed at an angle up to 60ш on either side of vertical shall have no harmful effects. 4 Protected against splashing water Water splashed against the enclosure from any directions shall have no harmful effects. 5 Protected against water jets Water projected in jets against the enclosure from any directions shall have no harmful effects 6 Protected against powerful water jets Water projected in powerful jets against the enclosure from any directions shall have no harmful effects. 7 Protected when dunked Water protected when dunked into water 8 Protected when dunked with pressure Water protected when dunked into water with higher pressure   Regarding "finger-safe" First Numeral Brief Description Definition 0 Non-protected   1 Protected against access to hazardous parts with the back of a hand. The access probe of 50 mm shall have adequate clearance from hazardous parts. 2 Protected against access to hazardous parts with a finger. The access probe of 12.5 mm, 80 mm length shall have adequate clearance from hazardous parts. 3 Protected against access to hazardous parts with a tool. The access probe of 2.5 mm shall not penetrate. 4 Protected against access to hazardous parts with a wire. The access probe of 1.0 mm shall not penetrate. 5 Protected against access to hazardous parts with a wire. The access probe of 1.0 mm shall not penetrate. 6 Protected against access to hazardous parts with a wire.  The access probe of 1.0 mm shall not penetrate.