This International Standard describes safety requirements, constructional requirements and
tests for junction boxes up to 1 500 V dc for use on photovoltaic modules according to class II
of IEC 61140:2001.
This standard applies also to enclosures mounted on PV-modules containing electronic
circuits for converting, controlling, monitoring or similar operations. Additional requirements
concerning the relevant operations are applied under consideration of the environmental
conditions of the PV-modules. This standard does not apply to the electronic circuits of these
devices, for which other IEC-standards apply.
NOTE For junction boxes according to classes 0 and III of IEC 61140:2001, in photovoltaic-systems, this standard
can be used as a guideline.