2 Mounting and installation
BU 0240 en-US-4920 41
Pos: 175. 8 / Anlei tu ngen /El ektr onik /F U un d St art er/ 2. M ont age un d Ins tal lati on/ ATE X un d E AC E X ( SK 1x xE, S K 20 0E) /Betr ie b in ex plosi on sgef ähr deter Um g ebu ng - AT EX Zon e 22 3D_ 01 (Über schrif t) [SK 1xx E / SK 2xx E] @ 22\mod_1528892785669_14638.docx @ 2426747 @ 3 @ 1
2.4.1 Operation in potentially explosive environments - ATEX zone 22 3D
Pos: 17 5.9 / Anlei tu ngen /El ektr onik /F U un d St art er/ 2. M ont age un d Ins tal lati on/ ATE X un d E AC E X ( SK 1x xE, S K 20 0E) /Betr ie b in ex plosi on sgef ähr deter Um g ebu ng - AT EX Zon e 22 3D_ 02 [SK 1xx E / SK 2xx E] @ 22\mod_1528895961505_14638.doc x @ 2426795 @ @ 1
All of the conditions which must be observed for operation of the device in an explosion hazard
environment (ATEX) are summarized below.
Pos: 175. 10 / Anl eit unge n/ Elek tro nik/F U u nd St arter/ 2. Mo ntag e u nd I nst allati on /AT EX u nd EAC EX ( SK 1xx E, SK 2 00E) /M odif izier ung de s G erä tes z ur Einh alt ung der Kat egor ie 3D - ATE X_0 1 [SK 1xxE / SK 2xx E] @ 58\mod_1605709415641_14638. docx @ 2693384 @ 4 @ 1
2.4.1.1 Modification of the device for compliance with category 3D
Only a specially modified device is permissible for operation in ATEX zone 22. This adaptation is only
made at the NORD factory. In order to use the device in ATEX zone 22, the diagnostic caps are
replaced with anodized oil inspection glasses, among other things.
( 1 ) Year of manufacture
( 2 ) Labelling of the device (ATEX)
IP55:
II 3D Ex tc IIIB T125°C Dc X
IP66:
II 3D Ex tc IIIC T125°C Dc X
Allocation:
• Protection with "housing"
• Procedure "A" zone "22" category 3D
• IP55/IP66 rating (according to the device)
IP66 is required for conductive dust
• Maximum surface temperature 125°C
• Ambient temperature -20°C to +40°C
Possible damage caused by mechanical overload
Devices in series SK 2xxE and the permitted options are only designed for a degree of mechanical
stress that corresponds to a low impact energy of 4J.
Higher loads will lead to damage to or in the device.
Pos: 175. 11 / Anl eit unge n/ Elek tro nik/F U u nd St arter/ 2. Mo ntag e u nd I nst allati on /AT EX u nd EAC EX ( SK 1xx E, SK 2 00E) /M odif izier ung de s G erä tes z ur Einh alt ung der Kat egor ie 3D - ATE X_0 2 [SK 2xxE] @ 19\mod_1505901677263_14638.docx @ 2365560 @ @ 1
The components needed for the modification are contained in an appropriately modified variable
frequency drive connection unit (SK TI4-…-EX).
Pos: 175. 12 / All gem ei n/Al lgem ei ngült ige M o dul e/---------Seite num bruc h komp akt --------- @ 13\mod_1476369695906_0.docx @ 2265496 @ @ 1
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