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MZC-20E Short circuit loop measurements

MZC-20E is designed for fitters and measurement technicians performing services in residential buildings, office blocks, manufacturing plants and any facilities possessing a low-voltage electrical system. The instrument is also recommended for electrical maintenance personnel.

Manufactory: SONEL S.A. (Poland).

Features
  • Fault loop impedance measurement with 0.01 Ω resolution
  • Operates in networks with voltages 220/380 V, 230/400 V, 240/415 V (operating range 180…440 V)
  • Operating frequency 45…65 Hz
  • Calculation of Ik fault current
  • Automatic differentiation between phase and phase-to-phase voltage
  • Possibility of applying test leads: 1.2 m, 5 m and longer
  • Measurement with swapped L and N conductors
  • Measurement of resistance (RS) and reactance (XS) components

Measurement functions

Measurement range

Display range

Resolution

Accuracy

Voltage

0 V…440 V

0 V…440 V

1 V

± (2% m.v. + 2 digits)

Short-circuit loop parameters

2p method - standard current measurement
maximum current 26.7 A

from 0.24 Ω…200 Ω
acc. to EN 61557

0.00 Ω…200 Ω   

from 0.01 Ω    

from ± (2.5% m.v. + 3 digits)

Short-circuit current readings

2p method - standard current measurement   

Calculated on the basis of test
ZS ranges and rated voltages       

1.15 A…40 kA

from 0.01 A

Calculated on the basis
of error for fault loop

Standard accessories:

  • MZC-20E
  • Test lead 1.2 m, red
  • Test lead 1.2 m, blue
  • Crocodile clip, K02
  • Pin probe with a banana plug, red
  • Pin probe with a banana plug, blue
  • Rigid hanger with a hook
  • Carrying case for the instrument and accessories
  • Hanging straps
  • SONEL CD
  • 4x LR6 batteries
  • User manual

Optional accessories:

  • Test lead 5 m, red
  • Test lead 10 m, red
  • Test lead 20 m, red
  • Pin probe with a banana plug
  • Pin probe 2 m, foldable
  • AGT -16P adapter for 3-phase sockets, 5-wire version
  • AGT -16C adapter for 3-phase sockets, 4-wire version
  • AGT -32P adapter for 3-phase sockets, 5-wire version
  • AGT -32C adapter for 3-phase sockets, 4-wire version
  • AGT -63P adapter for 3-phase sockets, 5-wire version
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