Ratio io5, Installation Manual, Page: 23 / 46

Installation | 23
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8. Connect the stripped wires to the correct terminals of the left terminal block.
9. Secure the wires to the terminals using a size 3 flathead screwdriver.
10. Gently pull the excess power cable out of the charger.
11. Secure the power cable in place by tightening the sealing nut onto the cable gland.
3 Phase 1 Phase
Earth = Green/Yellow
N = Blue
L1 = Brown
Earth = Green/Yellow
- = Not connected
Earth Jumper
Earth = Green/Yellow
N = Blue
L1 = Brown
L2 = Black
L3 = Grey
Note:
Earthing electrode connection required at this stage if a third party open PEN device is
not being utilised (three phase only).
Single phase io5 charger variants have an integral open PEN fault device, therefore, no
earthing electrode is required. “Earth Jumper” must always be installed.
“Earth Jumper” must always be installed for a single phase installation.
Never remove this item as it enables the Open PEN fault protection to function correctly.
Earthing
electrode
connection
point.*
*Three phase only.