User Documentation

2690250000/03/09.202040
5 Installation
5.1 Installation site
The PV Next String Combiner Box is suitable for protected
outdoor installation. For safe operation and to avoid dam-
age to the product, the following requirements must be
observed when selecting the installation site.
– The installation site must not be located in an environ-
ment where ammable liquids, gases or dusts may be
present. Work on the PV Next String Combiner Box can
produce sparks that can ignite a potentially explosive air
mixture.
– Direct exposure to sunlight and precipitation over long
periods of time, as well as excessively high or low tem-
peratures, can damage the product and shorten its ser-
vice life. Select an installation site where the product is
protected from rain and direct sunlight.
– The environment must be free of gases which, in com-
bination with humidity, have an aggressive e󰀨ect on sur-
faces (e.g. ammonia).
– The installation site must be chosen such that the prod-
uct is easily accessible for installation work and subse-
quent maintenance, and can be worked on safely.
– The site for wall mounting must be su󰀩ciently load-bear-
ing and must not be made of combustible material.
– Unauthorised persons must not have access to the
product.
– The PV Next String Combiner Box and all cables must
be mounted and installed in such a way that they cannot
be damaged by rodents.
– Observe the permissible ambient conditions. The tem-
perature range is indicated on the label inside the com-
biner box.
– The PV Next String Combiner Box must be mounted on
a at wall. Unevenness can cause the enclosure to warp
and leak.
– The distance from adjacent objects should be at least
250 mm, ideally 400 mm. This ensures su󰀩cient cooling
of the enclosure and free access for maintenance work.
Orientation
The PV Next String Combiner Box is designed for wall
mounting in vertical orientation. PV connectors and cable
glands must face downwards. The forward or backward
inclination should not exceed 20°.
90°
Figure 5.1 Vertical orientation
max. 20°
max. 20°
Figure 5.2 Maximum permissible forward or backward inclination
– The PV Next String Combiner Box may only
be mounted horizontally on its rear side, if it is
ensured that the box is protected from direct
sunlight at all times.
– The PV Next String Combiner Box must not
be suspended under a ceiling.