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.
UL, CE, ROHS, REACH, IATF16949, ISO9001, ISO14001, PSCR
UL
CE
IATF16949
ISO9001
ISO14001
PSCR
ROHS
REACH
What materials are SM series spindle-shaped insulators made of?
SM series spindle-shaped insulators are manufactured using high-quality unsaturated resin (BMC/DMC) raw materials, with insert options available in brass or steel.
What is the operating voltage range for these support insulators?
The SM series insulators support an AC operating voltage range of 800V to 3000V and a DC working voltage range of 1100V to 4200V.
What are the dimensions and size options available?
The product height ranges from 20mm to 76mm, with diameters ranging from 17mm to 50mm. The thread sizes range from M5 to M10.
What certifications and quality standards do these insulators meet?
Our SM insulators are fully certified under CE, REACH, ELV, SGS, UL, and comply with ISO9001, ISO14001, and IATF16949 Quality Management Systems.
What is the working temperature range and flame retardant rating?
They feature a working temperature rating of -40°C to 140°C, a hot wire temperature resistance of 960°C, and meet the UL94 V0 (3mm) flame retardancy standard.
What testing procedures do the insulators undergo?
Each batch undergoes rigorous testing including low and high temperature testing, pressure resistance, torque strength, tension, bending force, insulation resistance, and flame retardancy checks.
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