Mechanical; Mounting Orientation; Enclosure Requirements - Eaton Crouse-Hinds Series Instruction Manual

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4

MECHANICAL

4 .1

Mounting Orientation

The optimum orientation for the 9189-CA-P* carrier is mounted on a vertical surface
using a horizontally aligned DIN-rail, or surface mounted in the same orientation - see
Figure 4.1. This method of mounting ensures optimum heat dissipation from the 919x-
FP Power Supply Modules, and an operating temperature range of –20°C to +60°C. If
the DIN rail is mounted vertically on a vertical surface then the upper temperature limit
must be reduced to +50°C.
Figure 4 .1 - Preferred mounting orientation
4 .2

Enclosure Requirements

4 .2 .1 General Requirements
The assembly may be mounted in Hazardous (classified) areas – see Sections 8. The
following conditions must also be satisfied to ensure safe and reliable operation.
a) The equipment must be installed in an area of not more than pollution degree 2 as
defined in IEC 60664-1 and in an enclosure that provides a degree of protection of at
least IP54 and meets the relevant requirements of IEC 60079-0 and IEC 60079-15.
b) Prevent any form of pollution that could compromise the operation of the unit. For
example, choose an unpolluted location or a suitable enclosure to protect the assembly.
c) Provide an adequate level of mechanical protection. This can be achieved by selecting
a protected location, a suitable enclosure, or a combination of both.
d) Ensure that all cable entries and connections are secure by making provision for the
careful routing and securing of all cables.
e) Provide adequate security against unauthorized interference.
f) Ensure that the permitted ambient temperature range detailed in Section 4.1 is not
exceeded. Allow for power dissipation within the enclosure and consider the use of
shading against direct sunlight.
4 .2 .2 Outdoor Mounting
If the power system is mounted in an outdoor location, use a suitable enclosure with
a minimum of IP54 ingress protection. A higher level of ingress protection rating will
be necessary if the working atmosphere is or can be corrosive or if the enclosure is
subject to wet or dusty environments.
All fixing bolts must be suitable for the mounting surface and the environmental
conditions. Prepare holes in the mounting surface, on the centres shown in Figure 3.1
or 3.2, to accept suitable screws/bolts for mounting.
INM9189 Rev 4