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Home > Hot Products > ODM High-Quality SM Series Insulators from China Suppliers and Factory for Enhanced Power Systems Manufacturers, Exporters
ODM High-Quality SM Series Insulators from China Suppliers and Factory for Enhanced Power Systems Manufacturers, Exporters
ODM High-Quality SM Series Insulators from China Suppliers and Factory for Enhanced Power Systems Manufacturers, Exporters
ODM High-Quality SM Series Insulators from China Suppliers and Factory for Enhanced Power Systems Manufacturers, Exporters
ODM High-Quality SM Series Insulators from China Suppliers and Factory for Enhanced Power Systems Manufacturers, Exporters
ODM High-Quality SM Series Insulators from China Suppliers and Factory for Enhanced Power Systems Manufacturers, Exporters
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ODM High-Quality SM Series Insulators from China Suppliers and Factory for Enhanced Power Systems Manufacturers, Exporters
ODM High-Quality SM Series Insulators from China Suppliers and Factory for Enhanced Power Systems Manufacturers, Exporters
ODM High-Quality SM Series Insulators from China Suppliers and Factory for Enhanced Power Systems Manufacturers, Exporters
ODM High-Quality SM Series Insulators from China Suppliers and Factory for Enhanced Power Systems Manufacturers, Exporters
ODM High-Quality SM Series Insulators from China Suppliers and Factory for Enhanced Power Systems Manufacturers, Exporters

ODM High-Quality SM Series Insulators from China Suppliers and Factory for Enhanced Power Systems Manufacturers, Exporters

The SM series medium- and low-voltage insulators, proudly manufactured in China, feature cylindrical ends with a spindle-shaped middle section, making them a favorite among suppliers in the traditional static electrical industry, These high-performance insulators range in height from 20 to 76 mm and have a diameter between 17 and 50 mm, suitable for operating voltages approximately between 800 and 4000 V, Key performance metrics include the torque value, which varies by product size and falls within a range of 3 to 30 N·m for installation. Crafted from unsaturated resin materials, these insulators boast high and stable insulation resistance values. At 1000 V, the insulation resistance exceeds 23000 MΩ, ensuring reliable insulation performance across diverse environmental conditions, Choose our SM series insulators from a trusted factory to meet your electrical insulation needs!
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Product Description

Enhance Power Systems with SM Series Insulators introduction

The SM spindle-shaped insulators are made of high-quality insulating materials, which can effectively prevent current leakage and provide reliable insulation protection for electrical systems. Within the specified operating voltage range, such as around 800 - 4000V, they can ensure that the current flows along the predetermined path, avoiding current leakage and thus guaranteeing the normal operation of electrical equipment and the safety of personnel.
They have a relatively high insulation resistance value and can maintain stable insulation performance under different environmental conditions. Even when exposed to a certain degree of pollution or moisture, they can control the leakage current within a safe range through their own structural and material characteristics.
Optimized electric field distribution. Moreover, the spindle-shaped structural design of the SM series insulators helps to optimize the electrical performance. Compared with the traditional-shaped MNS series insulators, it increases the creepage distance and reduces the risk of discharge.
The SM series insulators also have strong bending and tensile resistance. The spindle-shaped structure gives the insulators better mechanical properties when subjected to bending and tensile forces. It can effectively disperse external forces and avoid stress concentration at a single point, thereby improving the insulators' bending and tensile resistance.
Depending on the size of the product, the installation torque of the SM spindle-shaped insulators ranges from 3 to 30 N·m. Appropriate installation torque can ensure that the insulators are firmly installed on electrical equipment, preventing loosening during operation.
The cylindrical design at both ends facilitates installation and enables precise connection with other components, ensuring the stability and reliability of the installation.
In terms of size specifications, the SM spindle-shaped insulators have a certain standardization. Their height ranges from 20 to 76 mm, and the diameter ranges from 17 to 50 mm. This standardized design gives them good interchangeability in different electrical equipment, facilitating the maintenance and replacement of the equipment.

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 SM series（SM-type support insulators）
Product height 20-76mm
Product diameter 17-50mm
Thread M5-M10
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) 800-3000V
Working voltage (DC) 1100-4200V
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

IATF16949

ISO9001

ISO9001

ISO14001

ISO14001

PSCR

PSCR

ROHS

ROHS

REACH

REACH

Product packaging

Product packaging

Product application case

Product application case

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Frequently Asked Questions (FAQ)

What are SM series spindle-shaped insulators primarily used for?
SM series insulators are designed for low-to-medium voltage electrical equipment, effectively preventing current leakage and delivering reliable insulation protection in systems operating around 800 - 4000V.
What operating voltage range do SM series insulators support?
They support an AC operating voltage of 800–3000V and a DC working voltage range of 1100–4200V, making them suitable for a wide range of power distribution applications.
What materials are used to manufacture SM series insulators?
The main body is made from high-quality unsaturated resin (BMC/DMC), while the thread inserts are constructed from durable brass or steel materials.
What mechanical and flame retardant properties do these insulators offer?
SM insulators offer exceptional bending and tensile resistance, a working temperature range of -40°C to 140°C, a UL94 V0 flame retardant rating (3mm), and hot wire resistance up to 960°C.
Can sizes, threads, and colors be customized?
Yes. Standard heights range from 20 to 76mm, diameters from 17 to 50mm, and thread options from M5 to M10. Custom colors, inserts, and materials are available upon customer request.
Which international quality and environmental standards do SM insulators meet?
SM series insulators comply with ROHS 2.0, REACH, CE, ELV, SGS, as well as ISO9001, ISO14001, and IATF16949 quality system certifications.

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