HIOKI Insulation Tester IR4053
Product Description
HIOKI Insulation Tester IR4053
- Designed for photovoltaic systems — measure insulation resistance while the PV module is generating power without needing to short circuits.
- Five selectable test voltages (50 / 125 / 250 / 500 / 1000 V) plus 1000 V DC open-circuit voltage check.
- Fast 4-second measurement display in PV mode, with standard insulation test mode in 1 second update intervals.
- Rugged, jobsite-ready design — drop proof from 1 m and built with comparator/indicator LEDs for quick pass/fail checks.
- Safety and reliability — CAT III 600 V rating; live circuit indicator and automatic electric discharge to protect users and equipment.
Technical Specifications
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