YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
YMGI: Your Modern Green Idea
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ELECTRICAL INSTALLATION
General installation
•
Any hardware used must be compatible with the mounting structure material to avoid galvanic corrosion.
•
It is not recommended to use modules with different configurations in the same system.
•
Several modules should be connected in series to form a string of modules if needed. The maximum number of series
connected modules is 5.
•
MC-4 connector is the recommended connector and the recommended system wires size is AWG12.
ASSEMBLY OF PV-WIRE
1. The PV-wire should be single-pole, double insulated solar cable, the length of which is due to the distance from
PV-modules to outdoor unit of AC, the recommended conductor cross section is AWG 12, and it should accord
with UL4703
2. The MC-4 connectors should be assembled to the PV-wires, and the other side of the PV-wires should be
assembled with spade terminals.
ASSEMBLY OF MC-4 CONNECTOR
Introduction of MC-4 connector
The MC-4 connector contains three parts, male PV cable coupler, female PV cable coupler, and a safety lock.
Step
Instruction
Photo
Recommended Tools
1
Strip cable insulation.
For best results, expose roughly
1/4in.
– 1/3in. of copper wire.
Take care not to cut individual
strands.
Stripping Pliers
Interchangable Blade
2
Hold open the clamping clip.
Insert contact in the appropriate
cross-section range of the
crimping tool.
Turn contact until the crimping
tabs face up.
Release the clamping clip.
Make sure the contact is
secured.
Crimping pliers
Insert
Locator: PV-LOC
