Wiring Of Pv Inputs - Weidmuller Transclinic 16i+ User Manual

3.2 Wiring of PV inputs

The "PV side" consists of X1/X4, X2, and a negative copper busbars.
two PV current input blocks (negative or positive depending on the model of Transclinic
xi+). X2 is the PV voltage input (negative or positive connector depending on Transclinic
xi+ model).
DANGER
There must be a way to isolate this equipment from the dangerous voltages
of the PV modules and the DC input of the inverter. Failure to observe this
requirement creates an electrical shock hazard. The recommended solution
is to install the following devices easily accessible and near this equipment
(typically inside the combiner box):
• fuse-disconnectors (placed electrically between the PV modules and
this equipment). These are marked with an oval in the photo below.
• an IEC 60947-3 certified DC-21B switch-disconnector
(placed electrically between this equipment and the inverter).
This is marked with a rectangle in the photo below.
• the fuse-disconnectors and the switch-disconnector should be marked
in the combiner box as devices for the disconnection of this equipment.
WARNING
Wrong torque or insufficient wire cross section create fire and electrical
shock hazards in addition to shortening the service life of the product.
Please check which is the right tightening torque for each screw and which
is the necessary tool to be used on this user manual. See informations on
this manual and on the product documentation.
WARNING
The PV-side wires shall have the right length so that they do not apply a
mechanical strain to this equipment. Failure to observe this requirement
creates fire and electrical shock hazards and may also damage this
equipment.
X1 and X4 are
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