Marmonix MIR-510 High-Voltage Megohmmeter
38 Comments
The MIR-510 is a 5 kV insulation resistance tester for commissioning and maintenance, with measurements up to 10 TΩ and live voltage monitoring.
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Description
The Marmonix MIR-510 is a 5 kV insulation resistance tester for commissioning and maintenance on transformers, generators, cables, and industrial switchgear. It measures insulation from about 0.5 MΩ to 10 TΩ with selectable 250 V / 500 V / 1000 V / 2500 V / 5000 V test levels, PI/DAR/ramp modes, live voltage monitoring, and an IP65 closed-case design for field work.
Browse Marmonix insulation testers and follow safe practice in our step-by-step insulation resistance (megger) test guide.
MIR-510 high-voltage insulation tester highlights
What the MIR-510 gives maintenance and commissioning teams:
- Insulation measurement up to 10 TΩ with test voltages to 5 kV
- PI, DAR, ramp, and filtered-resistance diagnostic modes
- Live voltage monitoring that helps block testing above about 36 V
- AC/DC voltage to 1000 V plus capacitance from about 10 nF to 25 µF
- USB upload with date-stamped storage for up to 1000 groups
- Rechargeable 6.2 Ah lithium pack and IP65 closed-case protection
Where teams use the MIR-510 megohmmeter
Typical MIR-510 jobs in plant and utility work include:
- Transformer and generator commissioning — high-voltage IR with PI/DAR trending
- Cable and switchgear maintenance — scheduled insulation checks before energizing
- Motor and large rotating equipment — insulation health after overhaul or storage
- Field service — rugged IP65 kit with stored results for reports
MIR-510 typical specifications
| Test voltages | 250 / 500 / 1000 / 2500 / 5000 V |
| Insulation range | 0.5 MΩ – 10 TΩ |
| Short-circuit current | >7 mA max |
| Key modes | IR, PI, DAR, RAMP, filtered resistance |
| Protection | IP65 (closed case) |
| Memory / interface | 1000 groups, USB |
| SKU / Brand | MIR-510 / Marmonix |
MIR-510 insulation tester questions
What insulation range and voltage does the MIR-510 cover?
The MIR-510 measures roughly 0.5 MΩ to 10 TΩ with selectable test voltages up to 5 kV (250 V through 5000 V), suited to HV commissioning and maintenance.
Does the MIR-510 support PI and DAR testing?
Yes — it includes PI, DAR, ramp, and filtered-resistance modes so technicians can go beyond a single IR reading on transformers, motors, and cables.
Is the MIR-510 built for outdoor or dusty sites?
Yes — the closed case is rated IP65, and the kit includes a rechargeable battery plus high-voltage leads for demanding field environments when procedures and PPE are followed.
Related: Insulation testers · Megger test guide
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Reviews (38)
Piotr Kowalski –
very rugged case for the mir510 it survives the rough transport to our oil fields no problem
Elena_P –
i love the help screen on the mir-510 no need to carry the manual around anymore
Amira_M –
simple interface on the mir510 no more memorizing steps with the touch screen menu
Omar Al-Farsi –
mir 510 is okay but it takes a long time to charge the internal battery fully when its flat which delays my testing
Ali Rezai –
five stars fast shipping and the mir-510 works flawlessly for our solar grid installs
Ingrid_Tech –
perfect for industrial plants the automatic pi on the mir510 helps me diagnose transformers fast
Luc_Technical –
best insulation resistance tester i have ever bought for our plant marmonix mir 510 is top tier
Arjun_The_Electrician –
the meter is fine but the test rod clips could be a bit bigger for thick industrial cables mir-510 is accurate though
Chloé “Volt” Dubois –
meter is good but the usb software took me a few tries to install because the driver didnt load right at first the mir 510 hardware is perfect though
Chen_W –
very good tool the 5kv capacity of the mir 510 is perfect for our factory needs
Niklas “Frozen” Berg –
best 5kv tester in this price range the mir-510 is definitely built to last in harsh weather
Gábor Farkas –
highly recommend the mir_510 fast delivery and build quality is better than expected but its a very large unit for one person
Sanjay_G –
accuracy is top notch on the mir-510 even at 5000v the readings dont jump around like cheaper brands
Min-Jun Kim –
great customer service from marmonix the mir 510 voltage accuracy is exactly what we needed
Svetlana_M –
very accurate and easy to handle shipping was early and the mir510 is a great tool
Carlos_R –
mir 510 is accurate but i wish the touch screen worked better with my thick work gloves it takes several taps sometimes
Mikhail S –
great accuracy and the mir-510 feels very high quality in your hands
Javier Gomez –
excelente calidad the mir 510 is very tough and the measurements are consistent every time
Lars “The Spark” Jensen –
solid build on this mir-510 but the test leads are very long which makes cable management tricky still a great 5kv tester
Liam “Ohm” O’Shea –
fantastic tool the mir_510 is rugged accurate and safe everything a professional needs
Sven_HV_Tech –
the mir 510 is a beast handles high voltage testing with no issues and very safe
Yuki_Tech_99 –
touch screen is very responsive on the mir510 and the help menu makes it so easy for my team
Joao_The_Inspector –
very happy with the mir510 the display shows everything on one screen so easy
Fatima Al-Sayed –
excellent service and fast delivery i use the MIR_510 for our telecomm diagnostics in the field
Hans_Maintenance_Pro –
best insulation tester i have used the pi and dar results are calculated automatically on the mir 510
Nina_Insulation –
the usb export on the mir-510 makes my reports look very professional for the clients
Tuan_Maintenance –
using the marmonix mir 510 for generator maintenance the 10t range is very impressive
Matteo Rossi –
marmonix mir 510 has a very clear display even in bright sun i can read the 10tohm results clearly
Ivan_P –
exactly as described the trurms on this mir 510 is very reliable for our factory maintenance
Akiro Sato –
mir510 is very stable even in high humidity environments great for our plant
Siobhán O’Reilly –
love the mir-510 for cable testing the ramp test mode is a game changer for finding faults
Zahir Abbas –
the pi and dar tests on the mir510 are very fast saved my team hours this week
Budi “The Wire” Santoso –
package arrived safe in jakarta the MIR_510 is very precise for our high voltage motor checks
Reza_Rahmani –
the backlight on the mir510 is a life saver for working in dark switchrooms
Diego_Moretti –
high precision is essential for my industrial work and the mir 510 delivers perfect results
Kwame_Field_Tech –
safety first with the auto discharge on the mir510 makes it much safer for my engineers
Alejandro Hernandez –
the MIR 510 is a power house for our transformer testing and the trurms is very stable
Lucas Silva –
great product mir 510 is accurate but the carrying case is a bit heavy to haul around the site all day delivery was very fast