Hioki IR5051-90 High Voltage PV Insulation Tester
Request a quote
Hioki IR5051-90 is a high-voltage insulation tester with 5 kV output and specialized PV (photovoltaic) testing capability for live string measurement up to 2000 V systems.
Product details
| Model | IR5051-90 |
| Manufacturer | Hioki |
| Category | Insulation Resistance & Megohmmeters |
| Availability | Made to order |
Description
Overview
The Hioki IR5051-90 is a compact, lightweight high-voltage insulation tester with specialized photovoltaic (PV) testing capabilities. It outputs up to 5 kV and enables stable measurements up to 10 TΩ. Compliant with IEC 62446-1 for Category 1 and Category 2 tests, it can measure insulation resistance of live PV strings during power generation without compromising safety or accuracy. The instrument is rated CAT III 2000 V, allowing safe testing of up to 2000 V PV systems.
Key Features
- Test voltage range: 250 V to 5000 V DC
- Measurement range: up to 10 TΩ
- Simultaneous display of test voltage, insulation resistance, and leakage current
- Automatic diagnostic indices: PI, DAR, DD, and capacitance values
- PV-specific: measures live strings without interference from generated current
- Ability to estimate and locate ground-faulted solar panels via GENNECT Cross app
- Step and ramp voltage testing
- Low-noise measurement technology
- Rechargeable AA NiMH batteries (environmentally friendly)
- Smartphone/tablet connectivity with Z3210 Wireless Adapter (optional) and GENNECT Cross app
- Immediate test stop if insulation failure is detected
Applications
- Solar PV system insulation resistance testing during power generation
- 1500 V and 2000 V PV system commissioning and maintenance
- Ground-fault detection and localization in solar arrays
- High-voltage cable and transformer testing
- Motor insulation diagnostics
Specifications
| Test Voltage Output | 250 V to 5000 V DC |
| Measurement Range | up to 10 TΩ |
| Safety Rating | CAT III 2000 V |
| PV System Support | 1500 V and 2000 V systems, IEC 62446-1 compliant |
| Diagnostic Functions | PI, DAR, DD, Capacitance |
| PV-specific Features | Live string measurement, ground-fault detection and localization |
| Connectivity | Bluetooth (Z3210 adapter optional), USB |
| Power Source | Rechargeable AA NiMH batteries |
| Software | GENNECT Cross app for PDF reporting and data analysis |
Request a quote
Hioki IR5051-90 High Voltage PV Insulation Tester
Response within 24 hours
No obligation
Direct communication