HT Italia COMBI521EV

Multifunction instrument for electrical installation safety testing, power quality analysis and EVSE safety testing

COMBI521EV is the new HT instrument to perform verification and control of electric car charging stations (EVSE) safety according to IEC / EN 61851-1 and IEC / EN60364-7-722 standards. Being a combined verification instrument, COMBI521EV also carries out tests on electric systems in compliance with IEC/EN 61557-1 and therefore measurements of continuity of the protection cable, insulation resistance (with calculation of PI and DAR), overall earth resistance, RCDs type B, A and AC tripping time and current, line / fault impedance with calculation of prospective short circuit / fault current, phase sequence and conformity. COMBI521EV also allows measuring and saving environmental parameters (illuminance, temperature), leakage current and electric quantities such as voltage, current, power factor, power and harmonics on single-phase systems.
COMBI521EV is provided with the innovative AUTO function: by selecting this function and only setting the value of RCD current, COMBI521 carries out tests of overall earth resistance, RCD tripping time and insulation resistance in a sequence. At the end of the test, the device shows all results with the indication of compliance or non-compliance with the standards with simple OK or NOT OK symbols.
The internal memory allows saving the measures and subsequently transfer them onto the PC through the optical/USB connection. Thanks to the brand new HTAnalysis App, free to download for iOS and Android systems, COMBI521EV is capable of transferring measured and recorded data onto tablets and smartphones, thus giving the operator the possibility to customize and share through HTCloud the result of their tests.


Sequence of tests for the verification of electric columns EV-TEST100
TRMS (1)
Insulation with voltage 50, 100, 250, 500, 1000VDC 1.200
Continuity of protective conductors with 200mA 225 x 165 x 75mm
Tripping time and current of RCDs type B, A, AC Standard, Selective and Delayed up to 1A 25ª
Tripping time and current of F-type RCDs
Non-trip earth resistance CAT IV 300V
Loop/Line impedance, Phase-Phase, Phase-Neutral, Phase-PE With optional accessory IMP57
Loop/Line impedance Phase-Phase, Phase-Neutral, Phase-PE with high resolution (0.1mΩ) With optional accessory IMP57
Measurement of percentage voltage drop on the line PR400
AUTO test (Non-trip ground resistance, RCD, Insulation) in sequence
Contact voltage
Phase sequence
Leakage current with optional clamp meter
Measurement of Voltage, Current, Active, Reactive, Apparent Power (1)
Measurement of Cosphi, Power Factor (1)
Voltage and current harmonics up to the 25th and THD% 25ª
Protection category CAT IV 300V
Measurement of environmental parameters (°C,°F, %RH, Lux)
Test with remote lead PR400
Help on line on the display
Internal memory for measured data saving
Optical/USB serial port for PC connection
Integrated WiFi connection and compatibility with HTANALYSIS App
Size (LxWx H) (mm) 225 x 165 x 75mm
Weight in grams (batteries included) 1.200

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