Earth fault loop impedance testers comparison - MZC series

Earth fault loop impedance testers comparison - MZC series

Get a quick overview of the key specifications in the MZC series of earth fault loop impedance testers with our loop impedance tester comparison.

These test instruments comply with the BS EN 61557-3 standard for loop impedance measuring devices. You’ll find a clear comparison table at the bottom of the page.

Comparison of loop impedance testers – MZC series

Click the model name (e.g., MZC-330S) to go to the product page, where you’ll find more detailed information and technical specifications.

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MZC-340-PV MZC-330S MZC-320S MZC-310S MZC-306 MZC-304F MZC-20E
MZC-340-PV Earth fault loop impedance tester
MZC-330S Earth fault loop impedance tester
MZC-320S Earth fault loop impedance tester
MZC-310S Earth fault loop impedance tester
MZC-306 Earth fault loop impedance tester
MZC-304F Earth fault loop impedance tester
MZC-20E Earth fault loop impedance tester
Mains voltage
Mains voltage [V] 0 - 900 0 - 750 0 - 550 0 - 440 0 - 750 0 - 500 0 - 440
Loop impedance (four-wire measurement)
Max. current 305 A 300 A 300 A 280 A close close close
Measurement range 7.2 mΩ - 1999 mΩ 7.2 mΩ - 1999 mΩ 7.2 mΩ - 1999 mΩ 7.2 mΩ - 1999 mΩ close close close
Max. resolution loop impedance 0.1 mΩ 0.1 mΩ 0.1 mΩ 0.1 mΩ close close close
Measurement range short-circuit current 400 A – 111.1 kA 57.5 A – 95.8 kA 57.5 A – 69.4 kA 115 A – 55.7 kA close close close
Max. resolution short-circuit current 0.1 A 0.1 A 0.1 A 0.1 A close close close
Loop impedance (two-wire measurement)
Max. current close 37 A 37 A 42 A 36.7 A 13.3 A 26.7 A
Measurement range loop impedance close 0.13 Ω - 199.9 Ω 0.13 Ω - 199.9 Ω 0.13 Ω - 199.9 Ω 0.13 Ω - 199.9 Ω 0.13 Ω - 199.9 Ω 0.24 Ω - 200 Ω
Max. resolution loop impedance close 0.01 Ω 0.01 Ω 0.01 Ω 0.01 Ω 0.01 Ω 0.01 Ω
Measurement range short-circuit current close 2.00 A – 3.21 kA 2.00 A – 3.21 kA 1.15 A – 1607 A Calculated from the measuring range and the nominal voltage Calculated from the measuring range and the nominal voltage Calculated from the measuring range and the nominal voltage
Max. resolution short-circuit current close 0.001 A 0.001 A 0.001 A 0.001 A 0.001 A 0.01 A
Loop impedance (two-wire measurement) without tripping
Measurement range loop impedance close close close close 0.43 Ω - 1999 Ω 0.5 Ω - 1999 Ω close
Max. resolution loop impedance close close close close 0.01 Ω 0.01 Ω close
Measurement range short-circuit current close close close close Calculated from the measuring range and the nominal voltage Calculated from the measuring range and the nominal voltage close
Max. resolution short-circuit current close close close close 0.001 A 0.001 A close
Additional functions
Protective earth resistance and equipotential bonding (200 mA) close close close close close check close
Resistance measurement close close close close close check close
Touch voltage check check check check close close close
Touch (Shock) voltage check check check check close close close
EUR 3790.00
EUR 2918.00
EUR 2233.00
EUR 1888.00
EUR 1545.00
EUR 695.00
EUR 348.00