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  • New item   Cable gland with nut and seal | M25×1.5 | for cable Ø13–18 mm | light grey | IP68 | Haupa | 250050

    Cable gland with nut and seal | M25×1.5 | for cable Ø13–18 mm | light grey | IP68 | Haupa | 250050

    Code: 250050
    Barcode: 4011923496968
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    Price 0.68 € VAT incl.
    ( 0.56 € VAT excl. )
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    Haupa 250050 is a light grey metric M25×1.5 cable gland made of PA 6.6 polyamide, with lock nut. It seals one cable with an outer diameter of 13–18 mm – e.g. five-core 4–6 mm² power cables (a guide only – the outer diameter decides). IP68, operating temperature −40…+85 °C.

  • Product description

    Cable gland with nut and seal | M25×1.5 | for cable Ø13–18 mm | light grey | IP68 | Haupa | 250050

    Haupa 250050 is a cable gland with a M25×1.5 thread, compression nut, TPR sealing ring and lock nut. This is a METRIC thread, not PG: M25 means a 25 mm outer diameter with a 1.5 mm pitch, so it is intended for M25 openings to EN 60423, not for PG21 or PG16 openings. When the nut is tightened, the ring grips the cable and the integrated strain relief holds it.

    Key point:
    Newer panels, boxes and equipment housings usually come with metric openings, where a PG gland does not fit or fits only approximately. Haupa 250050 covers the M25 opening: for a Ø13–18 mm cable, with IP68, a lock nut and anti-twist protection that matters wherever the equipment vibrates.
    Thread
    M25×1.5
    Cable Ø
    13–18 mm
    Protection
    IP68
    Spanner
    SW30

    How it works

    Installation. With the power off, the gland is inserted into an M25 opening and secured from inside with the lock nut (thread length 15.2 mm), then the cable is passed through the loosened nut.

    Operation. As the nut is tightened with an SW30 spanner, the TPR sealing ring grips the Ø13–18 mm cable evenly, and the integrated anti-twist feature stops the gland from loosening under vibration.

    Result. An IP68 entry to EN 60529 – protection against dust and long-term immersion under conditions defined by the manufacturer (the exact depth and duration are not stated in Haupa data).

    What makes Haupa 250050 useful?
    One pre-assembled set for an M25 opening: body, TPR sealing ring, nut and lock nut. No need to look for a separate lock nut, and the 15.2 mm thread length allows mounting in common plastic and metal panel walls.

    Technical specifications

    Product type Cable gland with nut, seal and lock nut
    Manufacturer HAUPA (Germany)
    Code 250050
    EAN 4011923496968
    Thread M25×1.5 (metric, 1.5 mm pitch)
    Thread outer diameter 25 mm
    Thread length 15.2 mm
    Overall height 29.4 mm
    Spanner size SW30
    Cable outer diameter 13–18 mm
    Number of cables 1
    Degree of protection IP68 (EN 60529)
    Operating temperature −40…+85 °C
    Body material polyamide PA 6.6, halogen-free
    Sealing ring TPR, halogen-free
    O-ring PVC
    Flammability class UL 94 V-2
    Colour light grey
    Supplied as assembled, with lock nut

    Main functions

    • IP68 sealing – protection against dust and long-term immersion.
    • Integrated strain relief – holds the cable and reduces pull on the terminals.
    • Anti-twist feature – the gland does not loosen under vibration.
    • M25×1.5 thread – fits M25 openings to EN 60423; outer diameter 25 mm, pitch 1.5 mm.
    • Range Ø13–18 mm – e.g. five-core 4–6 mm² power cables (a guide only – the outer diameter decides).
    • Halogen-free PA 6.6 – body and sealing ring are halogen-free, flammability class UL 94 V-2.

    Where is it used?

    • Distribution panels and boxes made with metric M25 openings
    • Power entries of heat pumps, boilers and ventilation units
    • Vibrating pump and fan motors
    • Outdoor lighting control and metering cabinets
    • Solar inverter and AC junction boxes
    • Industrial machine control panels
    • Basements and plant rooms where flooding is possible

    Use by need

    For the panel builder.
    Metric M25 with SW30 and a lock nut – a standard part for M25 openings; no mixing of PG and metric sizes in one panel.
    For the installing electrician.
    The pre-assembled gland with lock nut saves time on site, and the Ø13–18 mm range covers most 5×4–5×6 mm² cables.
    For the facility manager.
    IP68 and protection against loosening from vibration reduce the risk of moisture-related faults in plant rooms.

    Practical use

    If a heat-pump panel has a prepared M25 opening and the power cable outer diameter is about 15 mm, Haupa 250050 is the exact choice: insert it into the opening, secure it from inside with the lock nut, pass the cable through and tighten the nut with an SW30 spanner. A PG21 gland would not fit this opening – it is a different thread.

    Pros

    • Confirmed manufacturer data: Ø13–18 mm, SW30, thread length 15.2 mm
    • IP68 – a higher class than the IP67 series glands
    • Lock nut included, gland supplied assembled
    • Anti-twist feature – suitable for vibrating equipment
    • Halogen-free PA 6.6 and TPR, UL 94 V-2
    • Operating temperature −40…+85 °C

    Cons / limitations

    • This is a metric M25×1.5 thread – it does not fit PG openings.
    • Limited range: for a cable thinner than 13 mm choose a smaller gland to suit the opening (e.g. PG-13.5B for a PG13.5 opening, Ø6–12 mm); for one thicker than 18 mm – Haupa 250072 (PG29, Ø18–25 mm) for a PG29 opening.
    • One gland – one round cable; not for flat cables or several wires.
    • IP68 test conditions (depth, duration) are not stated in our data; it is not a fire barrier.

    Safety and installation notes

    • Work in a panel only with the power disconnected and the absence of voltage verified.
    • After drilling or punching, remove the swarf from the enclosure – it can cause a short circuit.
    • The wall must be thinner than the 15.2 mm thread length – otherwise the lock nut will not seat properly.
    • Tighten the nut with an SW30 spanner until the cable no longer moves in the ring; do not overtighten the plastic thread.
    • Additionally secure a heavy cable inside the panel and route it from below or with a drip loop.

    Quick selection guide

    M25×1.5 (metric)
    Cable Ø13–18 mm
    IP68, −40…+85 °C
    SW30, with lock nut
    Suitable when you need:
    • to seal a Ø13–18 mm cable into a metric M25 opening
    • an IP68 entry outdoors, in a basement or on vibrating equipment
    • a light grey entry on a grey cabinet or box
    Check before use:
    • The cable outer diameter with a caliper – it must be 13–18 mm.
    • That the opening is really metric M25, not PG21 / PG16.
    • The wall thickness – it must be less than the 15.2 mm thread length.
    Important reminder: The gland seals and holds one cable, but it is not a fire barrier – it does not replace fire-rated cable penetrations.

    FAQ

    What cable size does Haupa 250050 fit?
    A cable with an outer diameter of 13–18 mm – measure the sheath, not the conductor cross-section.
    Does Haupa 250050 fit a PG21 opening?
    No – it has a metric M25×1.5 thread; for a PG21 opening choose IP68 00872 (PG21, Ø13–18 mm).
    Is a lock nut included?
    Yes – according to distributor data the gland is supplied assembled with a lock nut.
    What spanner size is needed?
    The nut takes an SW30 spanner.
    Is the gland halogen-free?
    Yes – Haupa specifies a halogen-free PA 6.6 body and TPR sealing ring; the O-ring is PVC.
    Can two cables be passed through it?
    No – the ring seals only one round cable; use a separate gland for each cable.

    Manufacturer documents

    Links open on external websites. Checked 2026-10-04. If data differ, the latest manufacturer edition applies – or contact us.

    Haupa 250050 – metric M25×1.5 cable gland Ø13–18 mm, IP68

    Haupa 250050 is a light grey PA 6.6 cable gland with a metric M25×1.5 thread and lock nut, for cable Ø13–18 mm, IP68, −40…+85 °C. Intended for M25 openings in panels, boxes and equipment housings.

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

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