11.2
Checking that the device is voltage-free
Checking that the device is voltage-free
↻
Grid voltage shut off due to deactivation of the external circuit breakers.
↻
Device switched off on DC isolator switch
↻
Housing door unlocked and open.
1 Device version L and XL: Approach the voltage tester contacts on +pole and -
pole of the DC terminal to the contacts through both corresponding holes with
contact protection in the protective cover.
2 Check that the device is voltage-free.
3 Device version L and XL: Approach the voltage tester contacts on +pole of the
DC terminal, device-side to the + pole of the DC+ terminal, battery-side through
both corresponding holes with contact protection in the protective cover.
4 Check that the fuse is voltage-free.
»
The protective cover can be opened once it has been ensured that the device is
voltage-free.
1 Device versions B and M: Run the voltage tester contacts on +pole and -pole of
the DC terminal to the contacts through the corresponding holes on the contact
protection.
2 Check that the device is voltage-free.
3 Device version M: Run the voltage tester contacts on +pole of the DC fuse ter-
minal, device-side to the + pole of the DC fuse terminal, battery-side through
the corresponding holes on the contact protection.
4 Checking that the device is voltage-free
»
The contact protection can be opened once it has been ensured that the device
is voltage-free.
1
3
2
Fig. 49:
Ensure that the device is
voltage-free
1
DC+ terminal, device-side
2
DC- terminal
3
DC+ terminal, battery-side
1
3
2
2
4
Fig. 50:
Ensure that the device is
voltage-free: Basic, M-Version
1
DC+ terminal
2
DC- terminal
3
DC+ fuse terminal (device-
side)
4
DC+ fuse terminal (battery-
side)
DANGER
Dangerous voltage due to two operating voltages
Severe injuries or death may occur if the cables and/or terminals/busbars in the device are touched. The
discharge time of the capacitors is up to 5 minutes.
›
Only appropriately qualified electricians authorised by the mains supply network operator are permit-
ted to open and maintain the device.
›
Before opening the device: Disconnect the AC and DC sides and wait at least 5 minutes.
KACO blueplanet gridsave 50.0TL3-S
Page 71
EN