Kyoritsu 3125A – 5kV Digital High-Voltage Insulation Resistance Tester (Up to 1 TΩ)
Regular price
$ 1,780.00 CAD
Sale
Professional-Grade Megohmmeter for High-Voltage Electrical Testing
Product Overview:
The Kyoritsu 3125A is a high-performance 5kV digital insulation resistance tester engineered for industrial and utility applications. With an insulation resistance range up to 1 TΩ (1 teraohm) and selectable test voltages from 250 V to 5000 V, this tester is ideal for checking insulation integrity in high-voltage equipment such as transformers, switchgear, cables, and rotating machinery.
Its large LCD with bar graph, built-in memory, and intuitive interface make the 3125A a top-tier instrument for electrical engineers and maintenance professionals conducting regular testing and commissioning in high-voltage environments.
Key Features:
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Test Voltages: 250 V, 500 V, 1000 V, 2500 V, 5000 V
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Insulation Resistance Range: Up to 1 TΩ (1000 GΩ)
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Auto Discharge Function for operator safety
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Dielectric Absorption Ratio (DAR) & Polarization Index (PI) testing
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Large Backlit Digital Display with Bar Graph
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Memory for Data Storage (up to 43 readings)
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Timer Function for Timed Insulation Tests
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Overload Protection on all ranges
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IEC 61010-1 CAT IV 600 V Safety Rated
Best For:
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High-voltage maintenance and commissioning
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Substation and power utility testing
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Transformer, motor, and generator insulation checks
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Industrial reliability and predictive maintenance programs
What's Included:
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Kyoritsu 3125A 5kV Insulation Tester
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High-voltage test leads and alligator clips
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Carrying case
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Instruction manual
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Batteries (installed)
🔍 How It Compares:
Feature | Kyoritsu 3125A | Fluke 1550C | Metrel MI 3205 |
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Max Test Voltage | 5000 V | 5000 V | 5000 V |
Max Resistance Range | 1 TΩ | 1 TΩ | 1 TΩ |
DAR/PI Capability | ✅ Yes | ✅ Yes | ✅ Yes |
Internal Memory | ✅ Yes (43 readings) | ✅ Yes (full logging) | ✅ Yes (PC interface available) |
Display | LCD + Bar Graph | LCD + Analog scale | LCD + Graphical Interface |
Portability | Compact and rugged | Larger, rugged case | Bench/field hybrid unit |