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High-Quality Enhance Power Systems with SM Series Insulators Manufacturer, Companies

The SM series medium - and low - voltage insulators are designed with cylindrical ends and a spindle - shaped middle section. They are also the most commonly assembled insulators in the traditional static electrical industry.

Their height ranges from 20 to 76 mm, the diameter ranges from 17 to 50 mm, and the operating voltage is approximately between 800 and 4000 V.

In terms of performance, the main parameter to be considered is the torque value. Depending on the size of the product, the installation torque ranges from 3 to 30 N·m.

Since they are made of unsaturated resin materials, they have relatively high and stable insulation resistance values. At a voltage of 1000 V, the insulation resistance is greater than 23000 MΩ, enabling them to maintain stable insulation performance under different environmental conditions.

Product Description

Enhance Power Systems with SM Series Insulators

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 800 - 4000V, they ensure optimal current path integrity.

Key advantages include high insulation resistance, stable performance under humid or polluted environments, and an optimized spindle-shaped design that minimizes discharge risks by increasing creepage distance. Furthermore, their structural composition provides exceptional bending and tensile resistance, preventing stress concentration.

Technical Specifications

Product height20-76mm
Product diameter17-50mm
Raw materialUnsaturated resin (BMC/DMC)
Flame retardant gradeUL94 V0 (3mm)
Working temperature-40-140℃

Production & Certification

Workshop

Our products comply with international standards including CE, REACH, UL, and are manufactured under ISO9001 and IATF16949 quality systems.

Frequently Asked Questions

What materials are used for the inserts?

We use brass or steel as standard, with stainless steel and aluminum available for custom requests.

Can the height of the insulator be customized?

Yes, while we offer standard sizes, other heights and specifications can be tailored to meet your specific requirements.

What is the flame retardant rating?

Our insulators meet the UL94 V0 (3mm) flame retardant grade for enhanced safety.

What is the operating voltage range?

The AC operating voltage is 800-3000V, and the DC operating voltage is 1100-4200V.

Are the inserts customizable?

Yes, inserts, colors, and materials can be customized according to your technical drawings and requirements.

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