Megger MFT1721 Multifunction Tester
The Megger MFT1721 is a mid-range 18th edition multifunction tester from Megger, suitable for testing single and three phase installations found in domestic, industrial and commercial environments.
Every Megger Multifunction Tester is built to last, it won’t go bang when dropped, bounced, left out in the rain, connected across phases or even locked on and connected to a live circuit. This tough reputation is topped off with a 3 year warranty (with product registration) for complete peace of mind.
Each Megger MFT also has a Z max function, ensuring testing final ring circuits is quick and easy.
Adding to the already impressive feature set of the Megger MFT1711, the MFT1721 includes the following additional popular features…
- 100V insulation test range
- 15mA continuity test
- 2 Wire Phase to Phase L-L 50 V ~ 500 V loop test
- R1 + R2 value
- 3 Phase RCD (no earth)
- 1000mA RCD test
- Phase rotation
- Type B (pure DC) RCDs
- SP5 switch probe for remote testing
These additional features are often considered as ‘future proofing’ simply as it reduces the chance of coming across part of an installation a user is unable to test. For example a 100V insulation range and 15mA continuity test are ideal for use on inductive loads or simply to save power. Whilst type B RCD testing is useful for solar PV installations and vehicle charging points.
Megger MFT1721 Measurements
Voltage measurements – True RMS for more reliable voltage readings even on noisy circuits.
Insulation testing – Selectable test ranges 100V / 250V / 500V or 1kV. The Megger 1721 is also fully protected against live circuits.
RCD – Ability to test 10 / 30 / 100 / 300 / 500 and 1000mA RCD’s at ½, 1 and 5 times. Auto test feature to save you time by not having to return to the tester when the RCD trips. Ramp test to determine at what current the RCD actually trips. Also tests Type B (pure DC) RCDs and 3 phase RCD (no earth).
Continuity and resistance – 200mA and 15mA test ranges with adjustable buzzer threshold.
Loop testing
- 2 and 3 Wire Non-Tripping L-PE 50 V ~ 280 V
- 2 Wire Hi Current L-N 50 V ~ 280 V
- 2 Wire Phase to Phase L-L 50 V ~ 500 V
- PSCC and PFC (20 kA max.)
- Max. Zs Display
- R1 + R2 Value
The Megger 1721 has been designed to be as simple and comfortable to use for long periods of time. A TEST button features on both the right and left hand side, along with a large, central back lit screen. The 1721 is also a light weight tester at only 1kg when the batteries are fitted. A neck strap is also included.
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MFT1711 |
MFT1721 |
MFT1731 |
MFT1741 |
| Earth Loop Impedance ranges |
Coventional 3-wire no-trip test L-PE |
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New algorithm 3-wire no-trip test L-PE |
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Confidence meter |
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Tests through 10 mA RCDs |
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Tests through 30 mA RCDs |
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L-N/L-E 48V to 280V, 45 Hz to 65 Hz |
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L-N/L-E 48V to 480V, 45 Hz to 65 Hz |
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| Insulation resistance range |
250V, 500V and 1kV test voltages |
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100V test voltage |
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Adjustable buzzer threshold |
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| Continuity and resistance range |
200mA test current for certification |
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15mA test current to prolong battery life |
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Auto start continuity test |
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| Voltage, Frequency and phase rotation range |
10V to 600V AC and DC |
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Frequency 15Hz to 400Hz |
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Phase Rotation |
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| RCD testing range |
10, 30, 100, 300, 500mA RCDs |
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1000mA RCDs |
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High Speed auto RCD test |
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Ramp test for RCD fault finding |
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Type A, type AC and Type S RCDs |
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Programmable RCDs |
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Type B RCDs |
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3 phase (no earth) RCDs |
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| Earth electrode resistance range |
Stakeless or clamp on testing** |
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3-wire testing for fall of potential or 62% rule |
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Attached rod technique 3-pole testing |
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Option of 25V and 50V output |
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Ground noise check |
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| Additional benefits |
Probe Incorporatin test button |
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Current measurement 0.1mA to 200A * |
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On-board recharging |
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On-board memory |
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Bluetooth downloading from memory or blobbing |
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Hard plastic carry case |
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Large soft carry case |
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*Requires optional iClamp **Requires optional i and vClamp
What's Included?
- Megger MFT1721 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 1721
- Megger calibration certificate
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Great tester Review by James B
Used Megger for many years as they are top quality and always reliable. Bought as an update to my 1710 which I have passed on as still going strong. Item was in stock and supplied with a Megger calibration certificate so go it next day. (Posted on 16/04/2019)
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Quality & Reliability Review by Sparky2
Quality and Reliability at an acceptable price. I have mates who have tried Dilog, Kewtech and the likes which may seem cheaper initially but my last Megger tester lasted 6 years without problem. How many of the other brands can claim that type of reliability? (Posted on 14/11/2016)
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Great tester Review by Mr Safety
This is my second 17th edition tester and this is a delight to use compared to the Dilog tester I had before. Yes its expensive compared to that unit (Nearly double the price). But this performs so much better. Everything about it is quality. From the construction, clarity of the display, feel of the rotary dial to the test leads. Other reviews I have read always seem to rate Megger equipment highly and I can see why. In my opinion so far its more than worth the money. Ultimately you get what you pay for! (Posted on 20/07/2016)
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Megger Review by Smithy7
I previously had the 1720, however after an unexpected sharp downpour it was left beyond economical repair (got to love the British weather!) I had used my old tester for over 5 years so was expecting and expensive service/repair bill soon anyway, so buying a new tester wasn't too much of a gripe!
Anyway, I decided to stick with Megger, no problems in the past and the interface on the new series is almost identical to that of the old series so no need to learn it all over again. However there are a few (positive difference) The 1721 now has the ability to carry out an insulation test at 100V which is required for testing static flooring, a big bonus. Also, type B RCD testing, granted I haven't come across them too often before, but has now opened a few more doors. These are the biggest advantages for me, there are a couple of other additions too including TRMS voltage measurement.
Having used both the 1720 and 1721, considering the small price difference it makes the 1721 a bargain! (Posted on 06/06/2016)
RRP £875.00 Our Price: Incl. VAT:
RRP £1,435.00 Our Price: Incl. VAT:
RRP £1,515.00 Our Price: Incl. VAT:
