The FULLTEST3 is a Professional meter for safety tests on device/switchboards.


HT Instruments offers a cutting-edge device to carry out all measurements required by the new laws as regards tests to be performed on electric switchboards and machines IEC/EN60204-1:2016 and IEC/EN61439--2:2011.


Further to measurements of protective conductors’ continuity, insulation and dielectric strength, FULLTEST3 is capable of carrying out tests on RCDs type A, AC and B, General, Selective and Delayed, measurements of Line/Loop impedance also with high resolution 0.1mΩ (with optional accessory IMP57), measurement of non-trip earth resistance and leakage current with clamp transducer.


It can also carry out test on breaking capacity, protection tripping, I2t tests relevant to magneto-thermal circuit breakers in curve B, C, D, K and fuses type gG and aM. The device is also provided with a “touch-screen” colour display and 3 USB ports for connection to PC, USB pen drive, USB printers and possible bar code readers.


IEC/EN60204-1:2016 Measuments:

Power Frequency Dielectric withstand voltage with test voltage of 1000VAC

Testing protection against indirect contact:

  • Continuity of protective conductors with test current 200mA

  • Automatic disconnection of the supply (RCD, MCB, Fuse)​

  • RCD tripping (RCD AC, A, B) up to 1A on TT Systems

  • Magneto-thermal protections (MCB curve verificaiton on B, C, D, K) and fuses (gG, aM) on TN Systems

​Insulation resistance measurement with test voltage of 500VDC

Discharging of residual voltage V<60V in 5sec/1sec


IEC/EN61439-1-2:2011 Measurements:

Clearances and Creepage distances:

  • Dielectric withstand voltage with test voltage of up to 3400/5100VAC

Continuity of earth system and protective conductors ≥10A

Power Frequency Dielectric withstand voltage with test voltage of 1800VAC

Alternative power-frequency voltage test up to 5100VAC

Test on enclosures of insulating material:

  • ​Dielectric Withstand voltage with test voltage up to 2835V

Discharging of residual voltage V<60V in 5sec/1sec

HT Instruments FULLTEST3 IEC/EN 61439 (switchgear, controlgear) & IEC/EN 60204

  • Please allow 4-5 weeks lead time for this product to arrive.  Please contact us for any additional information. 

    This item comes with a 1 year warranty from the manufacturer.

For Sales, Calibration, or Repair Services Call 1 (888) 868 - 4546

Contact Us 

750 Oakdale Rd Unit 52

Toronto, Ontario

M3N 2Z4 Canada

Local: (905) 406-0100 

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