Warning: The information shown below is for guidance only, Trained professionals should only install myenergi products and should be aware of the below already!
Overview
The maximum current that can be supplied to an EV by zappi is 32A.
This should be considered as a high current load on a low voltage supply so it's very important to select the right cable to prevent overheating, and power loss in the cable and also for your zappi to work correctly. The minimum cable size for the 32A feed to the zappi 6.0 mm2 but the actual cable selected depends on the method of installation and the length of the cable. Over longer distances the voltage drop and power losses in the cable become significant.
Wire Strip Length
The main terminals are designed to work with wires with a diameter of up to 16mm2. Insert the mains cable through the installed cable gland (if not already done so). Strip back the outer sheath ensuring all cables reach the terminal blocks (leaving a little excess). Strip back all coloured cables approx. 18mm. If using hard-wired CT clamps now is the time to insert these too (we advise a specialist cable gland that can accommodate multiple cables whilst still maintaining IP integrity, or two separate cable glands to ensure zappi remains sealed).
To insert the wires into the terminal blocks a suitably sized screwdriver should be inserted into the slot. This opens the spring terminal allowing the wire to be gently pushed into the terminal. Make sure that the wire is pushed fully home and then remove the screwdriver, checking that the wire is secure in the terminal. If you are unsure for any reason please see the article here -> Installation of conductor cable (zappi 2.1)
Cable and Gland Requirements
The Cross cross-sectional area of the cable used should be between 4mm and 10mm The gland size should be a minimum of 16mm and a maximum of 25mm. Generally, a stuffing gland can be used. SWA CW outdoor glands may be used for armoured cable. The size of cable and gland used is the responsibility of the installer and should be determined on an install-by-install basis depending upon install specifics.
Failure to have an appropriate gland will void the warranty if found to the point of failure. The size of cable and gland used is the responsibility of the installer and should be determined on an install-by-install basis depending upon install specifics.