MZC-304F Earth fault loop impedance tester (WMGBMZC304F)

MZC-304F Earth fault loop impedance tester (WMGBMZC304F)

  • MZC-304F Earth fault loop impedance tester (WMGBMZC304F)
    MZC-304F Earth fault loop impedance tester (WMGBMZC304F)
    • Index: WMGBMZC304F
    • Category: Earth fault loop impedance tester
    • Condition: New
    • Mains voltage up to max. 500V
      • Price (Net):
      • EUR 695.00
      • Availability:
      • on request
      • Select quantity:
Description

Is the MZC-304F the right earth fault loop impedance tester for me?

The MZC-304F is an ergonomic earth fault loop impedance tester with many additional features. Unlike the MZC-20E, which is extremely simple to operate, the MZC-304F includes a built-in, readable memory and allows measurement results to be transferred via Bluetooth. In addition, it can measure loop impedance in systems with RCDs (without tripping them). It also supports protective conductor resistance and frequency measurements.

If this device seems too complex for your needs, you may prefer the simpler MZC-20E earth fault loop impedance tester.

The MZC-304F can perform measurements of network impedance and fault loop impedance in systems with voltages up to 500 V. The measurement range starts at 0.13 Ω.

What can be measured with the MZC-304F earth fault loop impedance tester?

The following table provides a compact overview of the measurement functions and application possibilities of the MZC-304F earth fault loop impedance tester.

  • Legend:
    • check
    • Measurement possible (accessory required)
    • check
    • Measurement possible (accessory included)
    • close
    • Measurement not possible
Measurement MZC-304F
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
Frequency measurement check
Protective earth resistance and equipotential bonding
Protective earth resistance and equipotential bonding check
Resistance measurement check
Technical data

Datasheet values MZC-304F

The following table provides a detailed list of the technical specifications of the MZC-304F.

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 – 299.9 V 0 – 500 V 0.1 V ±(2% of m.val. + 6 digits)
300 – 500 V 1 V ±(2% of m.val. + 2 digits)
Frequency
Frequency 45 – 65 Hz 45 – 65 Hz 0.1 Hz ±(0.1% of m.val. + 1 digit)
Loop impedance (Two-wire measurement) max. 7.6 A (230V), 13.3 A (400V)
Loop impedance (ZS) 0.13 - 1999 Ω
(Test lead 1.2m, Adapter WS-07)		 0 – 19.99 Ω 0.01 Ω ±(5% of m.val. + 3 digits)
20 – 199.9 Ω 0.1 Ω
200 – 1999 Ω 1 Ω
0.17 - 1999 Ω
(Test lead 5m)		 0 – 19.99 Ω 0.01 Ω
20 – 199.9 Ω 0.1 Ω
200 – 1999 Ω 1 Ω
0.19 - 1999 Ω
(Adapter WS-03, WS-04, WS-05)		 0 – 19.99 Ω 0.01 Ω
20 – 199.9 Ω 0.1 Ω
200 – 1999 Ω 1 Ω
0.21 - 1999 Ω
(Test lead 10m)		 0 – 19,99 Ω 0.01 Ω
20 – 199.9 Ω 0.1 Ω
200 – 1999 Ω 1 Ω
0.29 - 1999 Ω
(Test lead 20m)		 0 – 19.99 Ω 0.01 Ω
20 – 199.9 Ω 0.1 Ω
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 Calculated from the measuring range of ZS and the nominal voltage 0.110 A – 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 – 9999 A 1 A
Loop impedance without RCD tripping (RCD ≥ 30 mA)
Loop impedance (ZS) 0.5 – 1999 Ω (Test lead 1.2m, Adapter WS-03, WS-04, WS-05, WS-07) 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 5m, 10m, 20m) 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 0.110 A – 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 – 9999 A 1 A
Protective earth resistance and equipotential bonding (200 mA)
Measurement voltage: 4 – 20 V. Output current: min. 200 mA (at R < 2 Ω) Short-circuit current: 200 – 250 mA. 0.12 – 400 Ω 0 – 19.99 Ω 0.01 Ω ±(2% of m.val. + 3 digits)
20 – 199.9 Ω 0.1 Ω
200 – 400 Ω 1 Ω
Resistance measurement
Measurement voltage: 4 – 20 V. Short-circuit current: 8 – 15 mA. Not specified 0 – 199.9 Ω 0.1 Ω ±(3% of m.val. + 3 digits)
200 – 1999 Ω 1 Ω

Table: Datasheet values MZC-304F

Conformity to standards of the MZC-304F

The MZC-304F earth fault loop impedance tester complies with current European standards, which are based on IEC standards and EU directives and have been transposed into national regulations such as the BS standards.

The following tables illustrate the standards compliance of the MZC-304F device:

  • The first table outlines compliance with the relevant measurement methods.
  • The second table provides an overview of the general standards that the device itself meets.
Standards compliance of the MZC-304F: 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
BS EN IEC 61557-4 Part 4: Resistance of earth connection and equipotential bonding

Standards compliance of the MZC-304F: measurement methods
Standards compliance of the MZC-304F: 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
BS 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
BS EN IEC 61557-10 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. Teil 10: Combined measuring equipment for testing, measuring and monitoring of protective measures
Radio equipment directive (RED 2014/53/EU)
ETSI EN 301489-1 Electro Magnetic Compatibility (EMC) standard for radio equipment and services; Part 1: Common technical requirements; Harmonised Standard for ElectroMagnetic Compatibility
ETSI EN 301489-17 Electro Magnetic Compatibility (EMC) standard for radio equipment and services; Part 17: Specific conditions for Broadband Data Transmission Systems; Harmonised Standard for ElectroMagnetic Compatibility
ETSI EN 300328 Wideband transmission systems; Data transmission equipment operating in the 2,4 GHz band; Harmonised Standard for access to radio spectrum
BS EN 62479 Assessment of the compliance of low power electronic and electrical equipment with the basic restrictions related to human exposure to electromagnetic fields (10 MHz to 300 GHz)

Standards compliance of the MZC-304F: the tester
Download

User manual MZC-304F

User manual MZC-304F download

Datasheet MZC-304F

Datasheet MZC-304F download

Declaration of conformity MZC-304F

Declaration of conformity MZC-304F 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-304F
Adapter with UNI-Schuko angled plug (WAADAWS05)
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Test lead 1.2m, yellow, 1kV (WAPRZ1X2YEBB)
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Test lead 1.2m, red, 1 kV (WAPRZ1X2REBB)
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Test lead 1.2m, blue, 1 kV (WAPRZ1X2BUBB)
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Alligator clip, yellow, 1 kV, 20 A (WAKROYE20K02)
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Test probe, red (WASONREOGB1)
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Test probe, blue (WASONBUOGB1)
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AA battery LR06 (15A) 1.5 V (WABATAA)
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Carrying case M-6 (WAFUTM6)
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Carrying strap M-1 (WAPOZSZE4)
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Hook for hanging the tester (WAPOZUCH1)
check
Factory calibration certificate (WADOKCK)
check

List of items included with the MZC-304F
Accessories

Below is a selection of accessories for the MZC-304F earth fault loop impedance tester that we recommend based on practical experience for specific applications and use cases.

Accessory Description
Adapter with test probe for loop impedance measurement (WAADAWS07)

This adapter includes a test probe for measuring loop impedance. It can also be used for insulation resistance measurements.

Helps with: Measurements in distribution cabinets. Only two hands are needed to perform the measurement: Hand 1 holds the measuring device with the adapter (fixed test probe), Hand 2 holds the test probe or alligator clip.

Recommended accessory for the MZC-304F earth fault loop impedance tester

Complete accessory list for the MZC-304F earth fault loop impedance tester

Below is the complete overview of all accessories for the MZC-304F loop impedance tester, clearly structured and organized 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

Adapter with UNI-Schuko angled plug

Adapter with test probe for loop impedance measurement

Test lead 5m, red, 1kV

Test lead 10m, red, 1kV

Test lead 20m, red, 1kV

SP-2m: Telescopic test probe

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

Magnetic holder for tester

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-304F earth fault loop impedance tester (by index)