Dependable Medium and Low Voltage Busbar Insulators from China Suppliers and Factory for Modern Power Networks
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 |
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Product certification
UL, CE, ROHS, REACH, IATF16949, ISO9001, ISO14001, PSCR

UL

CE

IATF16949

ISO9001

ISO14001

PSCR

ROHS

REACH
Product packaging
Product application case
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Frequently Asked Questions (FAQ)
Q: What is the unique design feature of the SEP series insulators?
A: The SEP series low and medium voltage insulators feature a hexagonal prism middle section with six flat planes. This design allows clamping wrenches to fit precisely during installation, providing a stable force point and improving efficiency.
Q: What are the dimensions of the SEP series support insulators?
A: The height of the SEP series insulators ranges from 16 to 80 mm, and the diameter ranges from 15 to 65 mm, making them highly adaptable to various electrical equipment spaces.
Q: What materials are used for the SEP series insulators?
A: The raw material used is high-quality unsaturated resin (BMC/DMC), and the insert materials are available in brass or steel.
Q: What are the electrical and temperature limits for these insulators?
A: They support an operating voltage of 600-3200V (AC) and 800-4500V (DC), with a working temperature range of -40°C to 140°C and a flame retardant grade of UL94 V0 (3mm).
Q: What certifications do the SEP series insulators have?
A: The insulators comply with major international standards including UL, CE, ROHS, REACH, IATF16949, ISO9001, ISO14001, and PSCR.
Q: What is the Minimum Order Quantity (MOQ) for these products?
A: The Minimum Order Quantity (MOQ) for the SEP series hexagonal support insulators is 100 pieces.





