For a solar-cable buyer, long outdoor exposure and connector fit meet in one small cross-section. H1Z2Z2-K is a photovoltaic cable family associated with halogen-free cross-linked layers and flexible tinned copper. A clear Vietnam sourcing brief connects those construction details to the actual DC system and destination.
Inside the cable
The representative single-core construction has class 5 fine-stranded tinned copper, a cross-linked halogen-free insulation layer and a separate cross-linked halogen-free outer sheath. The tin coating gives the strands a silver appearance; it does not make them aluminium. Red and black sheaths are common order choices. Layer colours, wall thicknesses and outside diameter remain specific to the selected manufacturer drawing and size.
Where it is used
H1Z2Z2-K is used for appropriate DC connections in photovoltaic installations, including module, string and inverter-related routes within the system design. Buyers include solar EPC contractors, distributors and equipment assemblers. Fixed outdoor solar wiring creates different demands from an ordinary indoor power lead, particularly for UV exposure, ambient temperature, support and connector compatibility.
Ratings and selection points
EN 50618 is the key family reference, and 1.5 kV DC is a common nominal rating to specify. Maximum operating voltage and temperature-duration allowances must not be substituted for normal continuous ratings. Burial and immersion suitability require explicit confirmation for the selected product. European documentation does not establish UL 4703 approval. Connector selection must match conductor size, cable diameter and the connector maker’s approved combinations.
A clearer factory RFQ
A solar RFQ should list mm², tinned-copper class, rated DC voltage, red/black quantity split and reel length. Describe rooftop or ground-array routing, water exposure and any buried section. For prepared leads, include connector model and assembly requirements, with required EN 50618 and destination documents identified separately.
Compare the TGS H1Z2Z2-K configurations for the available reference size tables. State the required conductor resistance, nominal dimensions, test documents and marking for the exact order. Reference tables and illustrations guide the enquiry; the agreed drawing and approved specification define production.
Manufacturing in Vietnam with TGS
TGS Cable Industrial is a large manufacturing group producing wire and cable in Vietnam. The group has served Costco, Walmart, Target and many other customers for more than five years. That company-wide experience informs our work with importers, distributors and retail supply programmes. For your H1Z2Z2-K enquiry, our factory team reviews the construction, destination requirements, quantities and packing before confirming the order.
Explore our Vietnam factory production capability, or send your cable specification to discuss a factory quotation. Product approvals and customer-specific requirements are reviewed for the selected construction and programme.
Frequently asked questions
Is H1Z2Z2-K automatically UL-listed PV Wire?
No. EN 50618 and UL 4703 are different approval frameworks. Request the documents and markings needed for the intended market.
Is every H1Z2Z2-K suitable for burial or permanent immersion?
Do not infer either use from the family name alone. Confirm the exact manufacturer’s stated application, tests and installation conditions.
Technical references
Manufacturer references explain the representative cable family and construction. They do not certify a TGS product. The agreed order drawing, product marking and applicable approval documents define the supplied cable.