What is the main difference between a standard clamp-on ammeter and a clamp-on leakage current ammeter?

The main difference between a standard clamp-on ammeter and a clamp-on leakage current ammeter is that the latter is designed to accurately measure very low currents, typically those associated with leakage—currents that can be as small as microamperes. This capability makes it particularly useful for detecting unwanted leakage currents that could pose a safety hazard or contribute to equipment malfunctions.

Standard clamp-on ammeters, on the other hand, are generally optimized for measuring higher currents in the range of amps to hundreds of amps and may not provide the sensitivity required for leakage current measurements. As a result, they can struggle to accurately read low-level currents, which are critical in assessing leakage.

This differentiation is crucial for professionals dealing with electrical diagnostics, as each type of ammeter serves a specific purpose based on the range of currents it is designed to measure, ensuring appropriate safety measures and equipment reliability.