Megger MOM3 Handheld Micro-Ohmmeter

All Megger Products
  • Test current up to 300 A
  • Auto range: 0.1 μΩ to 3000 mΩ
  • Multiple models available
SKU
MOM3-RANGE

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View All Low Resistance Ohmmeters

The Megger MOM3 measures low resistance and detects abnormally high resistance to help prevent power loss, overheating, and potential failures. It tests circuit breaker contacts, busbar joints, disconnecting switches, safety ground connections, and more.

The MOM3 employs ultracapacitor technology to deliver immediate high-current output up to 300 A. Its low internal resistance guarantees efficient energy discharge without causing overheating, eliminating the need for bidirectional testing.

The MOM3 is battery-powered and weighs just 1.1 kg. Its auto-ranging feature automatically selects the appropriate range from 1 μΩ to 3000 mΩ. A durable rubberised casing protects the instrument from drops, and the included carrying strap facilitates easy transport.

Key Features

  • Test current up to 300 A
  • Battery operated
  • Lightweight - 1.15 kg
  • Auto range: 0.1 μΩ to 3000 mΩ
  • Complies with IEEE and IEC standards
  • Data Storage & Transfer - stores over 2,000 test values
  • Rapid Testing Capability

What's Included?

  • BK-30091
    • MOM3
    • Soft carrying case
    • Charger
    • Carrying strap
  • BK-30191
    • MOM3
    • MOM3 Kelvin probes 1.3 m cable set, 2 x 1.3 m (4 ft) one with trig button
    • Test cables with Kelvin probes
    • Soft carrying case
    • Charger
    • Carrying strap
  • BK-30291
    • MOM3
    • MOM3 Kelvin clamps, 3 m cable set, 1.3 m (4 ft) Red, 3 m (10 ft) black
    • Test cable red with Kelvin clamp
    • Test cable black with Kelvin clamp
    • Soft carrying case
    • Charger
    • Carrying strap
  • BK-30381
    • MOM3
    • MOM3 with Kelvin clamps, 5 m cable set, 1.3 m (4 ft) Red, 5 m (10 ft) black
    • Test cable red with Kelvin clamp
    • Test cable black with Kelvin clamp
    • Soft carrying case
    • Charger
    • Carrying strap

Product Range

  • Megger BK-30091 MOM3 Handheld Microohmmeter - Accessories & Standard Leads
  • Megger BK-30191 MOM3 Handheld Microohmmeter - Kelvin Probes, Accessories & Standard Leads
  • Megger BK-30291 MOM3 Handheld Microohmmeter - Kelvin Clamps (3m), Accessories & Standard Leads
  • Megger BK-30381 MOM3 Handheld Microohmmeter - Kelvin Clamps (5m), Accessories & Alternative Leads
£5,910.00
£7,092.00 inc vat
Free Delivery*
Important Notice
This item is made-to-order exclusively for you once your order is placed. As a result, it is not eligible for cancellation or return under our standard policy. Your statutory rights remain unaffected.
5910 Reward Points 60 Days Return

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Technical Information
Specification
Environment
Application Field For use in high-voltage substations and industrial environments
Temperature - Operation -20 °C to + 50 °C (-4 °F to + 122 °F)
Temperature - Storage -40 °C to + 70 ºC (-40 °F to + 158 °F)
Relative humidity %RH 5 % - 95 %, non condensing
Altitude Operational to 3,000 m
CE-Marking
RED 2014/53/EU
Classifications and Standards
Shock IEC 60068-2-27
Vibration IEC 60068-2-6
Transport ISTA 2A
Flammability Class V0
General
Battery Capacity Li-Ion Battery 19.8 Wh
Typical Recharge Time at 25 °C 3 hours
Battery Charger
Mains Voltage 100 - 250 V AC, 50 / 60 Hz
Input 100 - 240 V AC, 50 / 60 Hz, 1.3 A
Output 5.0 V, 3.0 A 15 W
Protection Low / high temperature
Charge Operation Temperature 0 °C to + 45 °C (32 °F to + 113 °F)
Audible Feedback Different buzzer sounds
Encapsulation IP54
Dimensions Instrument (excl. Binding posts) L 230 x W108 x H 98.5 mm
L 9.0 x W 422 x H 3.8 in
Carrying Case L 230 x W 360 x H 210 mm
L 9.0 x W 14.1 x H 8.2 in
Weight 1.15 kg (2.5 lbs) instrument only
4.3 kg (9.8 lbs) with accessories and carrying case
Measurement Section
Minimum Current Guarantee Selectable 5 A to 300 A
Valid at resistance ≤2 mΩ
Pass / Fail Settable from 0.1 μΩ to 3000 mΩ
Number of Measurements on Fully Charged Batteries typical. 2000 at 50A
typical. 1500 at 100A
typical. 500 at 300A
Range 0 - 3000 mΩ
Range Selection Auto
Resolution
Range Resistance Range with Intervals Full Range Display Resolution Recommended Test Current
1 0.1 μΩ - 1 mΩ 999.9 μΩ 0.1 μΩ 300 A
2 1 mΩ - 10 mΩ 9.999 mΩ 1 μΩ 300 A - 200 A
3 10 mΩ - 100 mΩ 99.99 mΩ 10 μΩ 200 A - 40 A
4 100 mΩ - 1 Ω 999.9 mΩ 0.1 mΩ 40 A - 5 A
5 1 Ω - 3 Ω 3000 mΩ 1 mΩ 5 A
Inaccuracy ± 0.1% of reading ± 0.05% of range
Typical Inaccuracy Only valid when the following conditions are met:
- Resistive load
- Ambient temperature 25 °C ± 3 °C.
- Maximum test current per the range being used
Test Interval 5 seconds
Outputs + / -
Range Max 300 A DC (R < 2 mΩ)
Output Voltage Max 5 VDC
Inputs SENSE + / -
Connector 4 mm banana jack
Voltage +5 VDC
Logger
Logger, Data Label Timestamp, Current, Resistance
Labeling Schemes Circuit breaker oriented or running numbers
Capacity >2000 measurements in running numbers
Wi-Fi*
Frequency Band 2412 MHz to 2472 MHz
RF Power Max 20 dBm
Communication
Wi-Fi EGIL200*
PC communication USB-C
*Available Q4 2025
Document Downloads
Megger MOM3 Handheld Micro-Ohmmeter Datasheet Datasheet
Megger MOM3 Handheld Micro-Ohmmeter User Manual Manual/Guide
Additional Information
SKU
MOM3-RANGE

Customer Reviews

 
Megger MOM3 Handheld Micro-Ohmmeter
£5,910.00
£7,092.00 inc vat
£5,910.00
£7,092.00 inc vat