Test Instrument Reference

Data record instr.digital-multimeter.input-protection

Verified 2026-10-27 Confidence: High

The current inputs of a multimeter are protected by high-energy fuses because the current shunt is a low-resistance path: test leads left in the current jacks and then connected across a voltage source place a short across that source, and the fuse contains the energy of the resulting fault inside its sand-filled enclosure. Voltage inputs rely on high input impedance and overvoltage protection rather than fuses, and the replacement fuse carries the current, voltage and interrupt ratings named in the meter's manual.

ProvenanceFluke learn article supports data record instr.digital-multimeter.input-protection, which is cited on the entry Digital multimeter.SOURCEFluke learn articleFluke learn articleManufacturer pageDATA RECORDinstr.digital-multimeter.input-protectioninstr.digital-multimeter..Verified 2026-10-27ENTRYDigital multimeterDigital multimeterNo revisions
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StepItemDetail
SourceFluke learn articleManufacturer page
Data recordinstr.digital-multimeter.input-protectionVerified 2026-10-27
EntryDigital multimeterNo revisions
Subject
Digital multimeter (Instrument classes)
Kind
Instrument fact
Source
Fluke learn article, web page edition, Choosing the correct fuse for your tester, Fluke. Publisher page

History

Every recorded change to this data record, oldest first.
DateChange
2026-10-27created
2026-10-27review_status unreviewed -> software_reviewed

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"Data record instr.digital-multimeter.input-protection." Test Instrument Reference. 2026-10-27. https://www.testinstrumentreference.com/data/instr.digital-multimeter.input-protection/.