Dependable China SEP Series Insulators from Leading 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
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Frequently Asked Questions (FAQ)
What are the main applications of the SEP series electrical insulators?
The SEP series insulators fall into the category of low- and medium-voltage support insulators. They are widely used to support, fix, and insulate busbars or other conductive elements in power distribution cabinets, switchgear, and various electrical systems.
What is the advantage of the hexagonal prism design in the middle of the insulator?
The middle hexagonal prism provides six flat, corresponding planes that allow assembly tools and clamping wrenches to fit precisely. This design ensures a stable, strong point of force, preventing slippage, improving installation efficiency, and ensuring accurate torque application.
What materials are used to manufacture the SEP series insulators?
The main body is molded from high-strength, flame-retardant unsaturated resin (BMC/DMC). The threaded inserts at both ends are made of high-quality brass or steel to ensure durable mechanical connections and corrosion resistance.
What size ranges and specifications do you offer?
Our standard SEP series insulators range in height from 16 to 80 mm, and in diameter from 15 to 65 mm. Thread sizes are available from M4 up to M12, offering flexible choices for different space constraints and loading requirements.
What are the electrical and thermal properties of these insulators?
They support working voltages ranging from 600V to 3200V AC and 800V to 4500V DC. They feature a wide working temperature range of -40°C to 140°C, a glow wire temperature resistance of 960°C, and comply with the UL94 V0 flame retardant standard.
Which quality and environmental certifications do the products hold?
Our manufacturing process and products are fully certified under ISO9001, ISO14001, and IATF16949 quality systems. The insulators themselves comply with UL, CE, RoHS 2.0, REACH, and PSCR standards.