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Dependable China SEP Series Insulators from Leading Suppliers | High-Quality Factory Manufacturing for Power Networks
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Dependable China SEP Series Insulators from Leading Suppliers | High-Quality Factory Manufacturing for Power Networks

The SEP series busbar insulators are high-quality medium and low voltage insulators designed with cylindrical ends and a unique hexagonal prism in the center. This innovative design allows for easy clamping during assembly, enhancing installation efficiency. With heights ranging from 16 to 80 mm and diameters from 15 to 65 mm, these insulators are suitable for various applications, As a prominent manufacturer in China, our busbar insulators are primarily utilized in stationary cabinets and enclosures within the global power industry, as well as in large-scale shipping. Our products meet stringent requirements for torque, tensile strength, and bending resistance. Additionally, for our shipping customers, we offer insulators that comply with rigorous salt-spray test standards. Our products can endure neutral salt-spray tests for 36 to 200 hours, based on specific customer needs, As a trusted supplier and factory, we are committed to delivering durable and reliable busbar insulators to meet the demands of any project

    SEP Series Insulators introduction

    The SEP series electrical insulators fall into the category of medium - and low - voltage insulators. The upper and lower ends are designed as cylinders, while the middle part features a hexagonal prism. The hexagonal prism has six flat and corresponding planes, which provide excellent support for using a clamping wrench during the assembly process. When operators use a clamping wrench to install or remove the busbar insulators, the wrench can precisely fit onto the planes of the hexagonal prism, creating a stable and strong point of force. This design not only significantly improves the assembly efficiency and reduces the workload of operators but also ensures the accuracy and reliability of the installation process. Operators can easily control the installation force and angle, enabling the insulators to be installed accurately in the designated positions, laying a solid foundation for the stable operation of the subsequent electrical systems.

    In terms of size specifications, the SEP series low-medium voltage insulators cover a relatively wide range. Their height generally ranges from 16 to 80 mm, and the diameter ranges from 15 to 65 mm. This diverse size design is intended to meet the needs of different customers and various application scenarios. For some electrical equipment with limited space, smaller - sized insulators can perform their insulating function within the confined space. In contrast, for some large - scale electrical systems, larger - sized insulators can provide stronger support and better insulation performance. The different combinations of height and diameter allow the SEP series insulators to flexibly adapt to various complex electrical environments, demonstrating their strong versatility and adaptability.

    Low-medium voltage electrical insulators specification

    Product features(Technical Data) Meet ROHS 2.0 environmental requirements
    Colors, inserts, materials can be customized according to customer requirements
    Type SEP series(SEP-type hexagonal support insulators)
    Product height 16-80mm
    Product diameter 15-65mm
    Thread M4-M12
    Insert material brass, steel
    Raw material unsaturated resin (BMC/DMC)
    MOQ 100 pcs
    Working temperature -40-140℃
    Flame retardant grade UL94 V0 (3mm)
    Hot wire temperature 960℃
    Operating voltage (AC) 600-3200V
    Working voltage (DC) 800-4500V
    Test items low and high temperature test, pressure resistance, torque strength, tension, bending force, pressure, insulation resistance, ROHS, flame retardant
    Certificates CE, REACH, ELV, SGS
    Quality System ISO9001, ISO14001, IATF16949

    production workshop

    production workshop

    Product certification

    UL, CE, ROHS, REACH, IATF16949, ISO9001, ISO14001, PSCR

    UL

    UL

    CE

    CE

    IATF16949-2027

    IATF16949

    ISO9001

    ISO9001

    ISO14001

    ISO14001

    PCSR

    PSCR

    ROHS

    ROHS

    REACH

    REACH

    Product packaging

    SEP Series Insulator

    Product application case

    MixCollage-13-Feb-2025-02-06-PM-9814

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    Frequently Asked Questions (FAQ)

    What are the main applications of SEP series insulators?

    SEP series electrical insulators are low-medium voltage support components widely used in electrical cabinets, distribution boards, and busbar systems to secure and insulate electrical conductors.

    What is the advantage of the hexagonal prism design in SEP insulators?

    The hexagonal prism design features six flat surfaces that provide a stable grip for clamping wrenches. This enables operators to apply force accurately and securely during assembly and disassembly, improving installation efficiency and reliability.

    What are the dimensions and custom options available?

    The height ranges from 16 to 80 mm and the diameter ranges from 15 to 65 mm. Thread sizes range from M4 to M12. Colors, insert options (brass or steel), and custom raw materials can be adjusted to meet specific requirements.

    What is the operating temperature range and flame retardancy?

    SEP series insulators can withstand temperatures from -40°C to 140°C. They feature a flame retardant grade of UL94 V0 (3mm thickness) and a hot wire temperature limit of 960°C.

    What certifications do these electrical insulators possess?

    Our products are fully compliant with RoHS 2.0 requirements and hold certificates including CE, REACH, ELV, SGS, UL, IATF16949, ISO9001, and ISO14001.