Electrical Connection - Ingecon Sun 250 M220 Indoor Installation Manual

Ingeteam
Insulation monitor
For installations that so require, the installer will connect an IT network insulation monitor.
The insulation monitor should withstand and be able to measure 1000 VDc networks.
The unit's insulation monitor monitors the IT network when the unit is connected to the grid.

5.4. electrical connection

Once the unit has been mounted in its final position and has been solidly secured, make the electrical connections
to it.
care must be taken to ensure the equipment is not live when accessing its interior.
All the doors on the cabinet are arranged so that they can only be opened when the Ac thermomag-
netic circuit breaker, the Dc isolating switch and any auxiliary external supplies are disabled.
Since nAc models do not include an automatic Ac thermomagnetic circuit breaker, the system's Ac
isolating switch must be opened.
When checking that there is no voltage, wearing dielectric gloves and safety goggles approved for electrical hazards
is required.
While the door is open, do not alter the position of the thermomagnetic circuit breaker or isolating
switch, do not operate the controls on the door nor apply force to the internal electrical devices which
they control.
They must also be in the OFF position for the door to be able to be closed.
After setting the Ac thermomagnetic circuit breaker, the Dc isolating switch and any auxiliary external
supplies to OFF, wait at least 10 minutes before opening the door. Internal capacitances may still hold
hazardous voltages.
During inspection and handling work:
Take care, since even with the Ac thermomagnetic circuit breaker and the Dc isolating switch on OFF,
cables directly connected to the grid or panels may still have dangerous voltages. This includes feed
strips and wires between switches/breakers.
As long as the panels are exposed to the light, the Dc cables will carry potentially dangerous voltage
levels.
During handling work:
Remove all sources of voltage to the equipment: grid, PV array and any auxiliary supply.
After setting the Ac thermomagnetic circuit breaker and Dc isolating switch to OFF, wait at least 10
minutes before opening the door. Internal capacitances may still hold hazardous voltages.
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Installation manual
AAV2000IKI01