MZC-306 Earth fault loop impedance tester (WMGBMZC306)

MZC-306 Earth fault loop impedance tester (WMGBMZC306)

  • MZC-306 Earth fault loop impedance tester (WMGBMZC306)
    MZC-306 Earth fault loop impedance tester (WMGBMZC306)
    • Index: WMGBMZC306
    • Category: Earth fault loop impedance tester
    • Condition: New
    • Mains voltage up to max. 750V
      • Price (Net):
      • EUR 1545.00
      • Availability:
      • on request
      • Select quantity:
Description

Is the MZC-306 the right earth fault loop impedance tester for me?

The MZC-306 earth fault loop impedance tester is designed, among other things, for use in 400/690 V networks, setting it apart from the typical handheld testers in the MZC series. Unlike the high-current testers (300 A), the MZC-306 operates with significantly lower test currents (36.7 A) and supports only two-wire measurements. This places the MZC-306 in a mid-range position within the MZC series.

The MZC-306 operates within a measurement range of 0.13 mΩ to 1999 mΩ (two-wire measurement) or 0.43 mΩ to 1999 mΩ (two-wire measurement without RCD tripping). These measurement ranges comply with BS EN IEC 61557-3.

What can be measured with the MZC-306 earth fault loop impedance tester?

The following table provides a quick overview of the various measurement capabilities and functions of the MZC-306 earth fault loop impedance tester.

  • Legend:
    • check
    • Measurement possible (accessory required)
    • check
    • Measurement possible (accessory included)
    • close
    • Measurement not possible
Measurement MZC-306
Loop impedance
Loop impedance (Two-wire measurement) check
Loop impedance without RCD tripping (Two-wire measurement) check
Prospective short-circuit current (calculated) check
Voltage
Voltage measurement check
Technical data

Datasheet values MZC-306

The following table provides a detailed list of the technical specifications of the MZC-306.

If you would first like to get an overview, we recommend our comparison chart of the MZC series earth fault loop impedance testers. There, you can quickly compare the devices side by side.

Measurement function Measurement range Display range Resolution Accuracy
Mains voltage
AC mains voltage 0.0 – 249.9 V 0 – 750 V 0.1 V ±(2% of m.val. + 4 digits)
250 – 750 V 1 V ±(2% of m.val. + 2 digits)
Loop impedance (Two-wire measurement) max. 36.7 A (690V), 21.3 A (400V), 24.5 A (230V), 12.2 A (115V)
Loop impedance (ZS) 0.13 - 1999 Ω
(Test lead 1.2m)
acc. to IEC 61557-3		 0 – 19.99 Ω 0.01 Ω ±(5% of m.val. + 3 digits)
20 – 199.9 Ω 0.1 Ω ±(4% of m.val. + 3 digits)
200 – 1999 Ω 1 Ω
0.17 - 1999 Ω
(Test lead 5m)
acc. to IEC 61557-3		 0 – 19.99 Ω 0.01 Ω ±(5% of m.val. + 3 digits)
20 – 199.9 Ω 0.1 Ω ±(4% of m.val. + 3 digits)
200 – 1999 Ω 1 Ω
0.19 - 1999 Ω
(Adapter WS-01, WS-05)
acc. to IEC 61557-3		 0 – 19.99 Ω 0.01 Ω ±(5% of m.val. + 3 digits)
20 – 199.9 Ω 0.1 Ω ±(4% of m.val. + 3 digits)
200 – 1999 Ω 1 Ω
0.21 - 1999 Ω
(Test lead 10m)
acc. to IEC 61557-3		 0 – 19.99 Ω 0.01 Ω ±(5% of m.val. + 3 digits)
20 – 199.9 Ω 0.1 Ω ±(4% of m.val. + 3 digits)
200 – 1999 Ω 1 Ω
0.29 - 1999 Ω
(Test lead 20m)
acc. to IEC 61557-3		 0 – 19.99 Ω 0.01 Ω ±(5% of m.val. + 3 digits)
20 – 199.9 Ω 0.1 Ω ±(4% of m.val. + 3 digits)
200 – 1999 Ω 1 Ω
Resistance (R) Calculated and displayed for ZS < 200 Ω 0 – 19.99 Ω 0.01 Ω ±(5% of m.val. + 5 digits) of ZS
Reactance (X) 20 – 199.9 Ω 0.1 Ω
Short-circuit current (IK) Calculated from the measuring range of ZS and the nominal voltage 0.055 – 1.999 A 0.001 A Calculated from the error of the loop impedance
2.00 – 19.99 A 0.01 A
20.0 – 199.9 A 0.1 A
200 – 1999 A 1 A
2.00 – 19.99 kA 0.01 kA
20.0 – 69.0 kA 0.1 kA
Loop impedance without RCD tripping (RCD ≥ 30 mA)
Loop impedance (ZS) 0.43 - 1999 Ω
(Test lead 1.2m)
acc. to IEC 61557-3		 0 – 19.99 Ω 0.01 Ω ±(6% of m.val. + 10 digits)
20 – 199.9 Ω 0.1 Ω ±(6% of m.val. + 5 digits)
200 – 1999 Ω 1 Ω
0.47 - 1999 Ω
(Test lead 5m)
acc. to IEC 61557-3		 0 – 19.99 Ω 0.01 Ω ±(6% of m.val. + 10 digits)
20 – 199.9 Ω 0.1 Ω ±(6% of m.val. + 5 digits)
200 – 1999 Ω 1 Ω
0.49 - 1999 Ω
(Adapter WS-01, WS-05)
acc. to IEC 61557-3		 0 – 19.99 Ω 0.01 Ω ±(6% of m.val. + 10 digits)
20 – 199.9 Ω 0.1 Ω ±(6% of m.val. + 5 digits)
200 – 1999 Ω 1 Ω
0.51 - 1999 Ω
(Test lead 10m)
acc. to IEC 61557-3		 0 – 19.99 Ω 0.01 Ω ±(6% of m.val. + 10 digits)
20 – 199.9 Ω 0.1 Ω ±(6% of m.val. + 5 digits)
200 – 1999 Ω 1 Ω
0.59 - 1999 Ω
(Test lead 20m)
acc. to IEC 61557-3		 0 – 19.99 Ω 0.01 Ω ±(6% of m.val. + 10 digits)
20 – 199.9 Ω 0.1 Ω ±(6% of m.val. + 5 digits)
200 – 1999 Ω 1 Ω
Resistance (R) Calculated and displayed for ZS < 200 Ω 0 – 19.99 Ω 0.01 Ω ±(6% of m.val. + 10 digits) of ZS
Reactance (X) 20 – 199.9 Ω 0.1 Ω ±(6% of m.val. + 5 digits) of ZS
Short-circuit current Calculated from the measuring range of ZS and the nominal voltage 0.055 – 1.999 A 0.001 A Calculated from the error of the loop impedance
2.00 – 19.99 A 0.01 A
20.0 – 199.9 A 0.1 A
200 – 1999 A 1 A
2.00 – 19.99 kA 0.01 kA
20.0 – 40.0 kA 0.1 kA

Table: Datasheet values MZC-306

Conformity to standards of the MZC-306

The MZC-306, as an earth fault loop impedance tester, meets all applicable EU requirements based on IEC standards and EU directives, which are incorporated into national regulations such as the BS standards.

The two tables below list all the standards the MZC-306 complies with: The first table shows conformity with the respective measurement methods, while the second table lists the standards that apply to the device as a whole.

Standards compliance of the MZC-306: measurement methods
IEC 61557: Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures
BS EN IEC 61557-3 Part 3: Loop impedance

Standards compliance of the MZC-306: measurement methods
Standards compliance of the MZC-306: the tester
Electromagnetic compatibility (EMC 2014/30/EU)
BS EN IEC 61326-1 Electrical equipment for measurement, control, and laboratory use – EMC requirements. Part 1: General requirements
BS EN IEC 61326-2-2 Electrical equipment for measurement, control, and laboratory use – EMC requirements. Part 2-2: Particular requirements – Test configurations, operational conditions and performance criteria for portable test, measuring and monitoring equipment used in low-voltage distribution systems
Low voltage directive (LVD 2014/35/EU)
BS EN IEC 61010-1 Safety requirements for electrical equipment for measurement, control, and laboratory use. Part 1: General requirements
BS EN IEC 61010-2-030 Safety requirements for electrical equipment for measurement, control, and laboratory use. Part 2-030: Particular requirements for testing and measuring circuits
BN EN IEC 61010-031 Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 031: Safety requirements for hand-held and hand-manipulated probe assemblies for electrical test and measurement

Standards compliance of the MZC-306: the tester
Download

User manual MZC-306

User manual MZC-306 download

Datasheet MZC-306

Datasheet MZC-306 download

Declaration of conformity MZC-306

Declaration of conformity MZC-306 download
Scope of delivery
  • Legend:
    • check
    • Accessory is included in the scope of delivery
    • close
    • Accessory is not included in the scope of delivery
Scope of delivery MZC-306
Adapter with UNI-Schuko angled plug (WAADAWS05)
check
Test lead 1.2m, yellow, 1kV (WAPRZ1X2YEBB)
check
Test lead 1.2m, red, 1 kV (WAPRZ1X2REBB)
check
Test lead 1.2m, blue, 1 kV (WAPRZ1X2BUBB)
check
Test prob, yellow (WASONYEOGB1)
check
Test probe, red (WASONREOGB1)
check
Test probe, blue (WASONBUOGB1)
check
Alligator clip, red, 1 kV, 20 A (WAKRORE20K02)
check
Alligator clip, blue, 1 kV, 20 A (WAKROBU20K02)
check
NiMH battery 4.8V 4.2 Ah (WAAKU07)
check
Z-7 battery charger (WAZASZ7)
check
Power supply cable 230 V (IEC-C7 plug) (WAPRZLAD230)
check
USB cable (WAPRZUSB)
check
Factory calibration certificate (WADOKCK)
check

List of items included with the MZC-306
Accessories

Complete accessory list for the MZC-306 earth fault loop impedance tester

In the following overview, you’ll find all accessories for the MZC-306 loop impedance tester. For better clarity, the list is sorted by item number.

Index Description

AGT-16T: CEE measurement adapter for 16A industrial socket (3-pole)

AGT-16C: CEE measurement adapter for 16A three-phase sockets (4-pole)

AGT-16P: CEE measurement adapter for 16A three-phase sockets (5-pole)

AGT-32T: CEE measurement adapter for 32A industrial socket (3-pole)

AGT-32C: CEE measurement adapter for 32A three-phase sockets (4-pole)

AGT-32P: CEE measurement adapter for 32A three-phase sockets (5-pole)

AGT-63P: CEE measurement adapter for 63A three-phase sockets (5-pole)

Adapter with UNI-Schuko plug with trigger

Test lead 5m, red, 1kV

Test lead 10m, red, 1kV

Test lead 20m, red, 1kV

SP-2m: Telescopic test probe

Alligator clip K-02, yellow, 1kV, 20A

Battery holder for 4xLR14 (C)

12V car adapter

Replacement cover

Sonel Reader: Free software for transferring data from the tester to a PC

Sonel Reports Plus: Software for creating test documentation

Accessory list for the MZC-306 earth fault loop impedance tester (by index)