NORD Drivesystems BU0135 - Manual (Page 15)

1 General
BU 0135 GB-2713 Pre-series version 15
1.7 Version with protection class IP55 / IP66
The SK 1x5E motor starters and additional modules are available in protection classes IP55 (standard) or
IP66 (optional).
Protection class IP66 must always be stated when ordering!
There are no restrictions or differences to the scope of functions in either protection class. In order to differ-
entiate the protection classes, modules with protection class IP66 are given an extra “-C” (coated
à coated
PCBs) in their type designation.
e.g. SK 175E-751-340-A-C
IP55 version:
The IP55 version of the SK 1x5E is the standard version. Both versions (motor-mounted, mounted on the
motor or wall-mounted on a wall bracket) are available. In addition, all adapter units, technology units and
customer units are available for this version.
IP66 version:
In contrast to the IP55 version the IP66 version is a modified option. For this version, both variants (motor-
integrated, close to motor) are also available. The modules available for the IP66 version (adapter units,
technology units and customer units) have the same functionalities as the corresponding modules for the
IP55 version.
NOTE
The modules for the IP66 design are identified by an additional "-C" and are modified
according to the following special measures listed below.
Special measures:
Impregnated PCBs,
Powder coating RAL 9006 (white aluminium) for housing
Low pressure test
NOTE
For all versions, care must be taken that the cable and the cable gland are carefully
matched. Wherever possible, the cables should be inserted so that water is deflected away
from the device (if necessary use loops). This is the only way to ensure permanent
compliance with the required protection class.