Since i mounted inverter on the side of front battery box i gained a 10mm on the left side. That proved enough so i am now able to mount my fauvorite contact box. This box was made just for the likes of me. It is strong, spacious, you can mount a second shelf and hide all spageti wires underneath…
I needed to get it to suitable height which measured 30mm difference to the metal shelf. So i made a flanged step and used original holes made for fastening the 12V battery box. I also used one of the M6 bolts for the third mount which defined a solid plane. Now i can cut some holes in a box and lead some cables and fuses in.
I need to put EV Display “before” the DC contactor in order for it to record charging process. and reset SOC to 100% when complete.
Like with Mazda i decided to separate HV line from LV signal lines. I achieved this by constructing a route for the HV to take from forward battery box cable into the HV contact box to the EV Display and further to Precharge relay and DC contactor with connection for charging cable + line. To keep EV Display mounted i made small Alu shelf and isolated it with plastic board. M3 bolts to hold it in place are also from plastic.
EV Display will serve as my SOC display, voltmeter, current meter and system temperature probe. I will mount the display unit into the dash. Sensor unit is located here and transmitts its data by network cable.
For precharge i will use AEV52012 relay from Nissan Leaf. It is great for precharge and controlling a DC heater.
For DC Main contactor i will use tyco EV200 contactor which is capable to break 2000A at 320Vdc!
All HV cables will come to the box from the bottom to keep the profile low.
LV signal wiring will also enter box from below. There will be contact rack and i need to fit a shelf over it to hide it as well as mount the relay module.
Next i routed all applicable cables to the right side of the box e.g. the low voltage side.
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