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2 options for atex zone 22 3d – NORD Drivesystems BU0180 User Manual

Page 44

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SK 180E Manual for frequency inverters

44

Pre-series version

BU 0180 GB-0914

2.10.1

Modified frequency inverter for compliance with Category 3D

Operation of the frequency inverter in ATEX Zone 22 is only possible with appropriate modifications. This
adaptation is only made at the NORD factory. In order to use frequency inverters in ATEX Zone 22, among
other things, the diagnostic caps are replaced with aluminium / glass versions.

II 3D Ex tD A22 IP55 T125 °C X

Categorisation:

 Protection with "housing"

Procedure “A“ Zone "22" Category 3D

 Protection class IP55 / IP66 (according to the device)

 Maximum surface temperature 125°C

 Ambient temperature -20°C to +40°C

Series SK 1x0E frequency inverters and the associated options are designed for a
degree of mechanical hazard corresponding to a impact energy of 7J.

The necessary adaptations are contained in the ATEX outdoor installation kits.

Device*

Kit designation

Part Number

SK 1x0E

SK 200E-ATEX-TU4

275274206

SK TU4-xxx

* One kit must be used for each device

2.10.2

Options for ATEX Zone 22 3D

In order to ensure an ATEX-compliant frequency inverter, the approval of optional modules for explosion
hazard areas must be observed. The following lists the various options with regard to their approval for use
in ATEX Zone 22 3D.