MJ15 (Megger) Features and Specifications *

The Megger MJ15 is a compact and versatile 5 kV insulation tester specifically designed to meet the needs of electrical contractors and engineers. Its primary function is to measure insulation resistance, which is crucial for maintaining the safety and efficiency of electrical systems in machinery, transformers, switchgear, cables, and other industrial installations. The MJ15 provides accurate and reliable readings with a maximum insulation resistance measurement of up to 20 GΩ. It offers four test voltage options—500 V, 1 kV, 2.5 kV, and 5 kV—making it suitable for a wide range of testing scenarios.

One of the standout features of the Megger MJ15 insulation tester is its dual power supply options. It can be powered either by batteries or a hand-cranked generator, ensuring that the instrument can be used even when batteries are not available. This makes the MJ15 highly versatile and dependable, especially in remote or field environments where power sources might be limited. The instrument's analog display is resiliently mounted, ensuring durability and clear readings even in challenging conditions. Additionally, the MJ15 includes automatic discharge for capacitive loads, enhancing safety during and after testing.

The MJ15 is designed with user safety and convenience in mind. It features safety terminals suitable for locking connectors and an optional locking test button for prolonged testing. The instrument automatically discharges capacitive loads and displays the decaying voltage, which is a critical safety feature. Its robust and lightweight case is ideal for outdoor use, and it comes with essential accessories such as a carrying case, test lead set, and test record cards. Overall, the Megger MJ15 is a reliable, user-friendly, and durable insulation tester that meets the diverse needs of electrical professionals.

The Megger MJ15 price and features make it a very attractive option compared to similar insulation testers available on the market. 

Features

• Four selectable test voltages: 500 V, 1 kV, 2.5 kV, 5 kV
• Dual power supply options: battery and hand-cranked generator
• Resilient mounted analog display for robustness
• Automatic discharge for capacitive loads
• Safety terminals suitable for locking connectors
• Rugged, lightweight case designed for outdoor use

Benefits

• Simple operation with minimal training required
• Quick and accurate reading of insulation resistance
• Suitable for a variety of applications including machinery, transformers, switchgear, and cables
• Safe to use with automatic discharge and clear indication of decaying voltage
• Versatile power options ensure the instrument can be used even when batteries are not available

Capabilities

• Measure insulation resistance up to 20 GΩ
• Voltage range up to 600 V for both AC and DC
• Pass/fail overlays for rapid testing
• Single scale for insulation values to avoid operator error

Specifications

• Insulation range: 100 kΩ to 20 GΩ (also 0 Ω and ∞)
• Test voltages: 500 V, 1000 V, 2500 V, 5000 V
• Test voltage accuracy: ±5% of nominal test voltages on 20 MΩ load
• Test voltage stability: <±1% (180 r.p.m. to 240 r.p.m. MJ15)
• Insulation accuracy (at 0 - 30 °C): ±2.5% of full scale deflection
• Short circuit/charge current: 1.5 mA ±0.5 mA
• Maximum capacitance of load: 5 μF
• Voltmeter range: 0 to 600 V AC
• Voltmeter accuracy: ±2.5% f.s.d. AC (with rotary switch in the V position)
• Overload rating: 720 V AC or DC
• Battery life: Typically 2000 five-second tests at 5 kV on 100 MΩ load

BASIC INFORMATION

CHARACTERISTICS

* Megger MJ15 technical specifications is provided for reference only. Avionteq cannot ensure accuracy of the technical specifications presented herein. The technical data may not relate entirely to all model and versions of the MJ15 such as the models sold by Avionteq.

Buy, sell, trade-in or rent Megger MJ15 Insulation / Continuity Tester.

Avionteq offers both new and refurbished or used Megger MJ15 Insulation Tester for sale or rent at most competitive price. All refurbished equipment are thoroughly tested and come with our warranty and fresh calibration certificate (when required). You can also sell your excess / surplus Megger MJ15 or receive trade-in credit towards purchase of other test equipment.