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Brand

HB-DIGITAL

Certified cable and sealed glands

Cable that publishes both its ratings, and glands rated for staying underwater.

Two voltages

1500 V DC nominal, 1800 V DC maximum. Both stated.

It is the only cable in its family to give the margin as well as the rating — which tells you not just what it is designed for but what it tolerates.

The designation and the body

H1Z2Z2-K, with double-layer XLPE insulation described rather than assumed, and TÜV Rheinland named as the certifying body.

A body can be asked for a certificate. An adjective cannot.

IP68

The glands are rated for continuous immersion rather than temporary. On a junction box at ground level or facing upwards on a flat roof, that second digit is the one that decides.

And the pack contains the locknut and the clamping lamellae as well as the gland — a gland without its locknut cannot be fitted to a plain enclosure wall.

Two temperature ranges, neither given

A temperature range on the cable, which H1Z2Z2-K itself defines. And a temperature range on the glands, which cycle from well below zero to well above forty on a roof.

Everything HB-DIGITAL puts on these shelves, one page each

  • HB-DIGITAL 50 m reel of 6 mm² H1Z2Z2-K solar cable

    HB-DIGITAL 50 m, 6 mm², H1Z2Z2-K, 1500 V DC, TÜV Rheinland certified

    Fifty metres of 6 mm² H1Z2Z2-K solar cable with double-layer XLPE insulation, rated 1500 V DC nominal and 1800 V maximum, certified by TÜV Rheinland.

    Cross-section
    6 mm², from the title
    Standard
    H1Z2Z2-K, from the title — the designation for photovoltaic cable
    Voltage rating
    1500 V DC nominal with a maximum permitted operating voltage of 1800 V DC, third bullet — the fullest voltage statement in this family
    Temperature range
    Nowhere in the listing
    UV resistance
    Described as designed for outdoor use; no test standard is cited
    Conductor construction
    Double-layer XLPE insulation, second bullet; the conductor itself is not described
    Printed certification
    TÜV Rheinland certified, from the title
    Amazon reference
    B0FFHKH8XL (same reference on 5 Amazon marketplaces)
    EAN
    4063328062255
    • Both the nominal and the maximum operating voltage are published — 1500 V and 1800 V
    • H1Z2Z2-K named, which is the actual designation for photovoltaic cable
    • No temperature range, which H1Z2Z2-K itself defines

    Best for: A roof installation where the cable specification has to stand up to inspection.

    ≈ €68
    Check price on Amazon
  • HB-DIGITAL M20 IP68 cable glands with locknuts

    HB-DIGITAL Ten M20 glands for 6–12 mm cable, IP68

    Ten M20 cable glands for 6 to 12 mm cable, rated IP68, in UV-resistant flame-retardant plastic with rubber seals, clamping lamellae and locknuts.

    Thread size
    M20, from the title
    Clamping range
    6 to 12 mm cable diameter, from the title
    Ingress rating
    IP68 — dust-tight and rated for continuous immersion, first bullet
    Material
    Weatherproof, flame-retardant plastic, third bullet
    UV resistance
    Stated in the third bullet
    Temperature range
    Nowhere in the listing
    Supplied parts
    Gland, rubber seal, locknut and clamping lamellae, from the title
    Amazon reference
    B09V5N4LWB (same reference on 5 Amazon marketplaces)
    EAN
    4063328036508
    • IP68 rather than IP67, which covers continuous immersion rather than temporary
    • Locknuts and clamping lamellae both included, which are what the seal actually depends on
    • No temperature range

    Best for: A junction box on a roof or in the ground where water is a certainty.

    ≈ €6
    Check price on Amazon

A price quoted in the text of a PowerVerdict page dates from the day that page was written; the live figure beside each product is fetched while you read and replaces it.