Introduction
I. Applicable Range
The SF series, designed for DIN-rail installation, represents a highly efficient micro change-over switch. This switch apparatus is meticulously engineered to cater to circuits that exhibit hybrid resistance and impedance. It is perfectly applicable for circuits operating with AC frequencies of 50Hz or 60Hz. It confidently handles rated voltages spanning from 230V to 400V. With a rated current capacity ranging from 16A to 125A,this switch facilitates seamless transitions between two power sources or load conversions, thereby realizing critical functions like circuit conversion and reliable switch disconnection. Its utility extends to the changeover of power supplies for a wide array of electrical equipment, enabling smooth changeovers between positive and reverse motor operations, precise measurement of voltage returns, and phase changes of current, etc. This robust product adheres to
the stringent standards of IEC60947-3 and EN60947-3.
II. Product Features
With its intuitive DIN-rail installation, this micro change-over switch is designed for ease of use. It allows effortless changeover between O, I, and II positions using a manual handle. The internal handle's turning slot and spindle's sliding position are expertly coated with premium-grade lubricant to significantly minimize mechanical wear. The dynamic and static contacts employ an innovative contact method ensuring excellent conductivity and unrivaled stability. Its modular and standardized guide installation structure is meticulously designed, making it especially suitable for integration with terminal combination apparatus in matching circuits. This ensures a reliable and efficient performance every time.
Audited Supplier 
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