DC and AC Cable Wiring Instructions for Sigineer Power Inverter Chargers

DC and AC Cable Wiring Instructions for Sigineer Power Inverter Chargers

AC Wiring

We recommend using 10 to 5 Awg wire to connect to the ac terminal block.

When in AC mode the AC input power will supply both the loads and AC charger, a thicker wire gauge for AC Input is required. Pls consult a qualified electrician about the specific wire gauge required in terms of wire material and inverter power.

There are 3 different ways of connecting to the terminal block depending on the model. All the wirings are CE compliant, Call our tech support if you are not sure about how to wire any part of your inverter.

Wiring Option 1   230V single phase/120V single phase Input: Ground+Hot line+Neutral Output: Neutral+ Hot line+Ground	220V 230V 110V 120V single phase inverter charger AC wiring
Wiring Option 2   120/240V split phase Input: Ground + Hot line+ Hot line Output: Hot line+ Hot line +Neutral	120 240V split phase inverter charger AC wiring with 240V output
Wiring Option 3   120/240V split phase Input: Ground + Hot line+ Hot line Output: Hot line +Neutral   Remark: In such case, each 120Vac output hotline can only carry a max of half the rated capacity.	110 220V split phase inverter charger AC wiring with 110 120V output

Caution:

Wiring Option 2 and Wiring Option 3 are only allowed for 110/220V split phase models.

Pls wire all the other models according to Wiring Option 1.

Preventing Paralleling of the AC Output

The AC output of the unit should never be connected to the utility power / generator.

Such a connection may result in parallel operation of the different power sources and AC power from the utility / generator will be fed back into the unit which will instantly damage the inverter and may also pose a fire and safety hazard.

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DC Wiring

It is suggested the battery bank be kept as close as possible to the inverter. The following is a suggested wiring option for 3 meter DC cable.

One cable is always best, but if there is a problem obtaining the recommended size or larger cable, multiple smaller cables will work. Performance of any product can be improved by thicker cable and shorter runs, so if in doubt round up and keep the length as short as possible.

Battery cables must have crimped (or preferably, soldered and crimped) copper compression lugs unless aluminum mechanical lugs are used. Soldered connections alone are not acceptable. High quality, UL-listed battery cables are available .These cables are color-coded with pressure crimped, sealed ring terminals.

Battery terminal must be clean to reduce the resistance between the DC terminal and cable connection. A buildup of dirt or oxidation may eventually lead to the cable terminal overheating during periods of high current draw. Use a stiff wire brush and remove all dirt and corrosion from the battery terminals and cables.

Reducing RF interference

To reduce the effect of radiated interference, twist the DC cables. To further reduce RF interference, shield the cables with sheathing /copper foil / braiding.

Taping battery cables together to reduce inductance

Do not keep the battery cables far apart. In case it is not convenient to twist the cables, keep them taped together to reduce their inductance. Reduced inductance of the battery cables helps to reduce induced voltages. This reduces ripple in the battery cables and improves performance and efficiency.

Please find the following minimum wire size. In case of DC cable longer than 3m, please increase the cross section of cable to reduce the loss.

Please follow the above minimum wire size requirement.

Contact us now at [email protected] to learn more.