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General safety notes
– The electrical connections must not be disconnected and
plugged under load.
– The products may only be installed by electrically skilled
persons.
– The PV plug-in connectors must be kept away from prod-
ucts or mediums (including gases) that contain petrol,
kerosine or plasticizer.
Safety notes for installation
WARNING
Hazardous voltage!
The electrical connections must not be discon-
nected and plugged under load. Depending on the
light intensity, voltage, generated by the module,
may be present!
Please regard the following notes:
– Protect all not connected connectors from dirt and water
during installation.
– Make sure that the O-seal of the plug-in connector is free
from dirt before installation.
– Make sure during installation that WM4 C contacts will
not be combined with WM4 housings and vice versa.
– Make sure that energized parts like contacts or cables will
not induce a ground fault.
– We can not guarantee the technical specifications, if you
use other components, accessories or tools for installa-
tion than recommended by Weidmüller.
– The PV plug-in connectors must not be subjected to any
mechanical loads.
Intended use
The WM4 C plug in connectors are intended for use in pho-
tovoltaics only. They shall only be used within the described
technical specifications.
WM4 C contacts are not compatible with WM4 housings and
vice versa.
Warranty is limited to combinations of Weidmüller Photovol-
taic connectors.
Recommended tools
Tool
Wire stripping pliers multi-stripax
PV
®
Crimping tool CTF PV WM4
Mounting tool Screwty 15 (for WM4 C)
Mounting tool Screwty 18 (for BOX WM4 C)
Torque srcewdriver DMS MANUELL
2454640000/02/07.2017
Order No.
1190490000
1222870000
1290830000
1254670000
9918370000
WM4 C
General safety notes
11
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