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OEM Dependable China SEP Series Busbar Insulators - Quality Products from Leading Suppliers and Factory Exporter, Companies

The SEP series busbar insulators are high-quality medium- and low-voltage insulators featuring cylindrical ends and a hexagonal prism in the center. This innovative design allows for excellent support when using a clamping wrench during assembly. With heights ranging from 16 to 80 mm and diameters from 15 to 65 mm, these insulators are perfect for various applications, Designed specifically for the global power industry, these insulators are commonly utilized in stationary cabinets and enclosures, as well as in large-scale shipping. They meet specific requirements for torque, tensile strength, and bending resistance. Furthermore, our factory ensures that our products can withstand rigorous salt-spray tests, lasting from 36 to 200 hours depending on the needs of shipping customers, As a leading supplier in China, we are committed to providing reliable busbar insulators that exceed industry standards. Choose our SEP series for your insulator needs and experience the quality and performance that set us apart in the marketplace

Product Description

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 Certification

UL

CE Certification

CE

IATF16949 Certification

IATF16949

ISO9001 Certification

ISO9001

ISO14001 Certification

ISO14001

PSCR Certification

PSCR

ROHS Certification

ROHS

REACH Certification

REACH

Product Packaging
SEP Series Insulator Packaging
Product Application Cases
SEP Insulator Application Case
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Frequently Asked Questions (FAQ)
What are the primary applications of SEP series insulators?
SEP series insulators are low-to-medium voltage electrical components designed to support and insulate busbars and other conductive elements in electrical systems, control panels, and distribution boards.
What materials are used in the construction of SEP series insulators?
The main body of the insulator is made of high-grade unsaturated resin (BMC/DMC), while the inner inserts are constructed from durable brass or steel to ensure maximum mechanical strength and corrosion resistance.
How does the hexagonal design of the insulator benefit installation?
The middle hexagonal prism structure provides six flat, parallel planes that securely accommodate clamping wrenches. This prevents slippage, improves assembly efficiency, and ensures precise force control during installation and maintenance.
What certifications do your SEP series insulators hold?
Our products conform to strict international standards and hold certifications including UL, CE, ROHS, REACH, IATF16949, ISO9001, ISO14001, and PSCR.
Can the color, size, and insert material of the insulators be customized?
Yes. We offer fully customizable solutions for colors, dimensions, and insert materials (such as brass or steel) to match the specific technical and layout requirements of your projects.
What are the operating thermal ratings and fire resistance levels of these insulators?
SEP series insulators operate effectively within a temperature range of -40℃ to 140℃, comply with UL94 V0 flame retardant standards (3mm), and resist hot wire temperatures up to 960℃.

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