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04-04-2026
What Safety Margins Should Be Considered When Selecting A Voltage Sensorc
Selecting a voltage sensor is not only about matching the nominal system voltage. In real power electronics, the safer and smarter decision is to build in enough margin for insulation, overvoltage, surge events, thermal drift, and long-term operating conditions. Official application notes and datasheets from LEM, TI, and Allegro all point to the same principle: voltage sensing in motor drives, solar inverters, UPS systems, EV platforms, chargers, and energy storage systems must be evaluated against real working voltage, isolation requirements, transient stress, and installation environment, not just the normal operating value printed on the front page of a datasheet.
