DANGER
Electric shock
Potentially fatal voltages are present at the
inverter DC connections. When light falls on the
solar modules, they immediately start to genera-
te electricity. This also happens when light does
not fall directly on the solar modules.
► Never disconnect the inverter from the solar
modules when it is under load.
► Turn the DC isolating switch to the
0 (OFF)
position.
► Disconnect the connection to the mains so
that the inverter cannot supply energy to the
mains.
► Disconnect the inverter from all AC and DC
voltage sources. Ensure that none of the
connections can be restored accidentally.
► Ensure that the DC cables cannot be
touched accidentally.
ATTENTION
Maximum power at the DC connections.
Exceeding the maximum current can cause
overheating of the DC connections.
► Always take into account the maximum
current of the DC connections when
planning the installation.
ATTENTION
Ingress of moisture.
Moisture can enter via open DC connections.
► To ensure protection degree IP65, close un-
used DC connections with the rubber plugs
that are attached to the DC connections.
Integrated string fuses and DC surge protection devices
► Replace damaged string fuses with devices of the same
type and from the same manufacturer.
► Surge protection devices are available from Delta.
Tools
The protective caps lock the DC plug so
that it can only be disconnected from DC
connections using the mounting tool.
► Observe the local regulations with
regards to the protective caps.
France: The protective caps must be
used.
Mounting tool for disconnecting the DC
plug and the protective caps from the
DC connections. Available from Multi-
Contact.
Polarity of the DC voltage
► Check the polarity of the DC voltage of the DC strings befo-
re connecting the solar modules.
DC Disconnection switch
France: The DC isolating switch meets the regulations of
UTE 15-712-1 (VDE 0100 712).
Safety notice
► Turn the DC disconnector to the
0 (OFF)
position before
connecting the solar modules.
Utilization of thin film modules
41
Quick installation guide for solar inverter M88H RPI883M121300 RPI883M122300 EU V1 EN 5017414200_00 2019-11-07
Connecting to the solar modules (DC)
M88H_122 (CF)
