Megger MJ159 Megohmmeter/Insulation Tester
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Megger MJ159 is a hand-cranked insulation resistance tester with four selectable DC voltages (100–1000V), measuring resistance up to 2000MΩ with a guard terminal that eliminates surface leakage cur...
Product details
| Model | 8000E |
| Manufacturer | Megger |
| Category | Insulation Resistance & Megohmmeters |
| Availability | Made to order |
Description
Overview
The Megger MJ159 is a portable insulation resistance tester designed for measuring high-resistance values in electrical equipment and installations. It uses a hand-cranked generator to produce regulated DC high voltage with stable output regardless of cranking speed, making it ideal for field testing where external power is unavailable. The instrument features a guard terminal that eliminates surface leakage current from measurements, ensuring accuracy even on contaminated surfaces.
Key Features
- Hand-cranked generator with regulated DC voltage output
- Four selectable test voltages: 100V, 250V, 500V, and 1000V DC
- Resistance measuring range: 0.1Ω to 2000MΩ with ohm range to 5000Ω
- Guard terminal to eliminate surface leakage current
- Large, easy-to-read analog scale with no multipliers
- Electronic inverter provides stable test voltage independent of cranking speed
- AC voltage range with automatic discharge feature for safe lead removal
- Compact, portable design in impact-resistant ABS plastic case with carrying handle
- Rated for Installation Category III (up to 300V Line-Ground, 500V Line-Line)
Applications
- Insulation testing of cables, transformers, and switchgear
- Equipment commissioning and maintenance testing
- Field diagnostics where portable operation is essential
- Spot and step voltage testing procedures
Included Accessories
- Test Leads (210971)
- Carrying Case (217740)
- Instructions
Specifications
| Max Output Voltage | 1000V DC |
| Max Resistance Reading | 2000MΩ |
| Resistance Measuring Range | 0.1Ω – 2000MΩ |
| Ohm Range | 0 – 5000Ω |
| Test Voltages | 100V, 250V, 500V, 1000V DC |
| Power Source | Hand-cranked generator |
| Installation Category | III (≤300V Line-Ground, 500V Line-Line) |
| Case Material | ABS plastic with fold-down carrying handle |
| Display Type | Large analog scale, no multipliers |
| Auto Discharge Feature | Yes |
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Megger MJ159 Megohmmeter/Insulation Tester
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