MZC-340-PV Earth fault loop impedance tester (WMGBMZC340PV)
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MZC-340-PV Earth fault loop impedance tester (WMGBMZC340PV) -
- Index: WMGBMZC340PV
- Category: Earth fault loop impedance tester
- Condition: New
- Mains voltage up to max. 900V
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Is the MZC-340-PV the right earth fault loop impedance tester for me?
In solar farms and large-scale PV systems, inverters operating at 1500 V DC and 800 V AC are commonly used. The MZC-340-PV is specifically designed for these applications. The measurement of network line impedance and earth fault loop impedance is performed between the inverter and the transformer.
The MZC-340-PV supports measurements at system voltages of up to 900 V, with a maximum test current of 305 A. While it is developed primarily for use in solar farms, the earth fault loop impedance tester can also be used in other applications involving AC system voltages up to 900 V.
The MZC-340-PV operates in a measurement range of 7.2 mΩ to 1999 mΩ (four-wire measurement).
To help you make the right choice, this product page provides all the necessary information - including datasheet values, standards compliance, and a list of standard and optional accessories.
Measuring touch voltage with the MZC-340-PV
In addition to measuring earth fault loop impedance and line impedance, the MZC-340-PV is also capable of detecting touch voltage, with a maximum measurable voltage of up to 100 V. Two different measurement methods are available:
- Touch voltage (voltage between conductive parts during simultaneous contact)
- Shock (touch) voltage (voltage between a conductive part and the ground, using a special measuring probe)
What can be measured with the MZC-340-PV earth fault loop impedance tester?
The table below provides a quick overview of the measurement functions and application areas of the MZC-340-PV earth fault loop impedance tester.
- Legend:
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- check
- Measurement possible (accessory required)
- check
- Measurement possible (accessory included)
- close
- Measurement not possible
| Messung | MZC-340-PV |
|---|---|
| Measurement | |
| Loop impedance (Four-wire measurement) | check |
| Prospective short-circuit current (calculated) | check |
| Voltage | |
| Voltage measurement | check |
| Frequency measurement | check |
| Touch voltage measurement | check |
| Shock (touch) voltage measurement | check |
Datasheet values MZC-340-PV
The following table provides a detailed list of the technical specifications of the MZC-340-PV.
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 V – 900 V | 0 – 249 V | 1 V | ±(2% of m.val. + 4 digits) |
| 250 V – 900 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 (Four-wire measurement) max. 305 A: 220 A (800 V), 190 A (690 V), 280 A (500V), 220 A (400 V), 130 A (230 V) | ||||
| Loop impedance (ZS), UN = 200 - 900 V |
7.2 mΩ - 1999 mΩ acc. to IEC 61557-3 |
0.0 – 199.9 mΩ | 0.1 mΩ | ±(2% of m.val. + 2 mΩ) |
| 200 – 1999 mΩ | 1 mΩ | |||
| Resistance (R), UN = 200 - 900 V |
0.0 – 1999 mΩ | 0.0 – 199.9 mΩ | 0.1 mΩ | ±(2% of m.val. + 2 mΩ) von ZS |
| Reactance (X), UN = 200 - 900 V |
200 – 1999 mΩ | 1 mΩ | ||
| Short-circuit current (IK) | 115.0 A – 32.9 kA UN = 230 V |
110 A – 199.9 A | 0.1 A | Calculated from the error of the loop impedance |
| 200 A – 1999 A | 1 A | |||
| 2.00 kA – 19.99 kA | 0.01 kA | |||
| 20.0 kA – 199.9 kA | 0.1 kA | |||
| 200 A – 55.5 kA UN = 400 V |
110 A – 199.9 A | 0.1 A | ||
| 200 A – 1999 A | 1 A | |||
| 2.00 kA – 19.99 kA | 0.01 kA | |||
| 20.0 kA – 199.9 kA | 0.1 kA | |||
| 250 A – 69.4 kA UN = 500 V |
110 A – 199.9 A | 0.1 A | ||
| 200 A – 1999 A | 1 A | |||
| 2.00 kA – 19.99 kA | 0.01 kA | |||
| 20.0 kA – 199.9 kA | 0.1 kA | |||
| 345 A – 95.8 kA UN = 690 V |
110 A – 199.9 A | 0.1 A | ||
| 200 A – 1999 A | 1 A | |||
| 2.00 kA – 19.99 kA | 0.01 kA | |||
| 20.0 kA – 199.9 kA | 0.1 kA | |||
| 400 A – 111.1 kA UN = 800 V |
110 A – 199.9 A | 0.1 A | ||
| 200 A – 1999 A | 1 A | |||
| 2.00 kA – 19.99 kA | 0.01 kA | |||
| 20.0 kA – 199.9 kA | 0.1 kA | |||
| Touch voltage | ||||
| Touch voltage | 0 – 100 V | 0 – 100 V | 1 V | ±(10% of m.val. + 2 digits) |
| Shock (touch) voltage | ||||
Conformity to standards of the MZC-340-PV
The MZC-340-PV earth fault loop impedance tester complies with the applicable EU standards, which are based on IEC standards and EU directives and have been incorporated into national regulations such as the BS standards.
The following two tables illustrate the standards compliance of the MZC-340-PV:
- The first table refers to compliance with the relevant measurement methods.
- The second table lists the general standards that apply to the device itself.
| Standards compliance of the MZC-340-PV: 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-340-PV: 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 |
| 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) |
User manual MZC-340-PV
Datasheet MZC-340-PV
Declaration of conformity MZC-340-PV
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- check
- Accessory is included in the scope of delivery
- close
- Accessory is not included in the scope of delivery
| Scope of delivery | MZC-340-PV |
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Complete accessory list for the MZC-340-PV earth fault loop impedance tester
Below you will find the accessories list for the MZC-340-PV Z-loop impedance tester, clearly organized by index.
| Index | Description |
|---|---|
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Control device (tablet) |
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Sonel Reader: Free software for transferring data from the tester to a PC |
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Sonel Reports Plus: Software for creating test documentation |