• approved distributor

    Buy or Hire Test Equipment
    Repair | Calibrate | Training

  • product advice and demos

    Product advice & demos
    Aftersales support

  • competetive prices

    Competitive quotes
    Bespoke deals

  • approved distributor

    Approved distributor
    Approved service centre


Be the first to review this product

MFT1731 Multifunction Tester

Megger MFT1731 Multifunction Installation 18th Edition tester offers Type B RCD testing & 3-pole earth electrode testing. Plus, earth electrode testing options with the use of optional clamps.

Part Number:

read more


Need Help ? Contact Us Request Demo
Acutest's Price Promise
  • Competitive quote
  • Expert technical advice/demos
  • Trusted aftercare support


Manufacturer's RRP

1974.00 incl. VAT)
Add To Cart
  • Competitive quote
  • Expert technical advice/demos
  • Trusted aftercare support




Megger MFT1731 Multifunction Installation Tester

The Megger MFT1731 is built for your environment!

It‘s tough; it won’t go bang when connected across phases, when it gets dropped or bounced, when it’s used in the rain, when the wrong range is selected or when accidentally connected to live circuits – even with the test locked on!

Dust and rain proof to IP54 and offers CAT IV safety, means that you can use it in any environment without a second thought.  To make it more convenient, test buttons are located at either end of the tester meaning you can use the available hand to initiate testing, or you can use the CAT IV probe with the unit‘s test button if you prefer.  Featuring useful functions such as ZMAX and Auto RCD on the across the complete range.

Comes complete with large, soft carry case, it‘s the perfect single-phase tester for domestic work along with three-phase testing capabilities suited to applications in commercial and industrial arenas.

Megger MFT1731 carries all the handy features of the MFT1711 and MFT1721, such as 3 and 2-wire non-trip loop testing with resistance and fault current display and frequency measurement; additionally this model also offers future-proof features such as Type B RCD Testing and TRMS.  With additional earth electrode testing options such as 3-pole ART electrode testing and stakeless electrode testing (clamps are optional accessories). 

The tester provides on-board memory to store up to 1,000 results with the option to download via Bluetooth to your PC, using Megger Download Manager (supplied as standard).  As an option, the MFT1731 is available complete with PowerSuite Lite software (see download options).

Megger MFT1731 Key Features:

  • 2 and 3-wire non-trip loop impedance testing
  • Fast 2-wire high current loop test including phase to phase testing ability 
  • ZMAX facility
  • Full range of RCD tests from 10 mA to 1000 mA
  • Selective, variable type B and 3-phase RCD (no neutral) testing
  • Auto RCD and ramp
  • Insulation testing at 1 kV, 500 V, 250 V and 100 V
  • Continuity and low Ws at 200 and 15 mA
  • Adjustable buzzer threshold
  • True RMS voltage measurement and phase rotation
  • Stake-less, ART and 3-wire earth electrode testing
  • The range boasts the largest, brightest and clearest displays on the market!
  • Includes earth electrode testing lead set
  • Supplied in a large soft carry case (with sufficient space for the tester, test leads and some tools)
  • Includes rechargeable batteries (charger included) - A single charge can provide up to a month’s battery life dependant on use!
  • 3-year warranty

What comes with the Megger MFT1731?

  • Megger MFT1731 Multifunction Tester 
  • 3 wire test lead set with probes and crocodile clips
  • Mains plug test lead
  • Batteries
  • Switched test probe for remote testing
  • Megger embroidered Neck strap
  • Carry case
  • Full user guide CD for MFT 1731
  • Megger calibration certificate


Comparison Chart for: Megger MFT1731 Multifunction Tester

Earth loop impedance ranges
Conventional 3-wire no-trip test L-PE
New algorithm 3-wire no-trip test L-PE
Confidence meter
Tests through 10 mA RCDs
Tests through 30 mA RCDs
2-wire no-trip test L-PE
L-PE 48 V to 280 V, 45 Hz to 65 Hz
2-wire high current test
L-N / L-E 48 V to 280 V, 45 Hz to 65 Hz
L-N / L-E 48 V to 480 V, 45 Hz to 65 Hz
PSCC or PFC calculations displayed with loop impedance
Up to 20 kA fault current
ZMAX value retained
Calculated R1 + R2
Insulation resistance range
250 V, 500 V and 1 kV test voltages
100 V test voltage
Applied voltage display
Adjustable buzzer threshold
Full protection against live circuits
Continuity and resistance range
200 mA test current for certification
15 mA test current to prolong battery life
Auto-start continuity test
Adjustable buzzer threshold
Voltage, frequency and phase rotation range
10 V to 600 V AC and DC
True RMS
Frequency 15 Hz to 400 Hz
Phase rotation
RCD testing range
10, 30, 100, 300, 500 mA RCDs
1000 mA RCDs
1/2 I, I and 5 I tests
0° and 180° phase angle
High speed auto RCD test
Ramp test for RCD fault finding
Type A, type AC and type S RCDs
Programmable RCDs
Type B (pure DC) RCDs
3-phase (no earth) RCDs
Touch voltage display 0 V to 253V
Earth electrode resistance range
Stakeless or clamp on testing**
3-wire testing for fall of potential or 62% rule
Attached rod technique 3-pole testing
Option of 25 V and 50 V output
Ground noise check
Intelligent safety system
Test inhibit
Safe contact
Live safety warning
Auto discharge
Additional benefits
Analogue arc
Probe incorporating test button
Current measurement 0.1 mA to 200 A*
On-board recharging
On-board memory
Bluetooth downloading from memory or blobbing
Hard plastic carry case
Large soft carry case
Weather and dust proof to IP54
Safety rated to CAT IV 300 V
Calibration certificate
1 year warranty, upgradeable to 3 years
Notes:**Requires optional MCC1010 and MVC1010*Requires optional MCC1010
Product Downloads