Sonel Instruments India Private Limited
Sonel Instruments India Private Limited
Keelkattalai, Chennai, Tamil Nadu
GST No. 33AASCS6993H1ZL
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Short Circuit Loop Measurement meter

In order to cater the diverse requirements of our customers, we are engaged in manufacturing an extensive range of Short Circuit Loop Meter. All these products are sturdily designed and ensure long lasting service.

MZC-304 Fault Loop Impedance Meter

MZC-304  Fault Loop Impedance Meter
  • MZC-304  Fault Loop Impedance Meter
  • MZC-304  Fault Loop Impedance Meter
  • MZC-304  Fault Loop Impedance Meter
  • MZC-304  Fault Loop Impedance Meter
  • MZC-304  Fault Loop Impedance Meter
  • MZC-304  Fault Loop Impedance Meter
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Product Details:

Model Name/NumberMZC-304
BrandSonel
Net Weight0.6 kg
Package Weight2.1 kg
Package Width28 cm
Package Height17.5 cm
Package Length34 cm
Ingress ProtectionIP 67

Measurement of fault loop and more Get to know the Sonel MZC-304 compact short circuit loop impedance meter with many measurement functions. The presented model is one of the smallest instruments available on the market intended for short circuit loop impedance measurements in 230/400 V networks and continuity of protective and equipotential connections measurements. The MZC-304 meter performs short circuit loop measurements with a resolution of 0.01 Ω, also in the case of measurements in networks protected with RCD switches. With a backlit keyboard and display, the device can be used even in low light. The device has a sealed casing with IP67 protection, which is characterised by excellent resistance and ensures smooth operation even under adverse environmental conditions.

The device meets the requirements set out in standard EN 61557.

Capabilities:

  • Fault loop impedance measurement with 0.01 Ω resolution.
  • Low-current impedance measurement in circuits protected by RCD ≥ 30mA with 0.01 Ω resolution (range of 180...270 V)
  • Operates in networks with voltages 220/380 V, 230 V/400 V, 240/415 V (operating range 180...460 V)
  • Operating voltage range: 180…270 V (for ZL-PE and ZL-N) and 180…460 V (for ZL-L).
  • Maximum measuring current: 7.6 A for 230 V (3x10 ms), 13.3 A for 400 V (3x10 ms).
  • Operating frequency 45…65 Hz
  • Calculation of Ik fault current.
  • Measurement with swapped L and N conductors.
  • Measurement of resistance (RS) and reactance (XS) components.
  • Low-voltage measurement of continuity of circuit and resistance.


Additional features:

  • Contact electrode - quick testing of proper connection of PE conductor.
  • Voltage measurement 0...500 V.
  • Frequency measurement 45.0...65.0 Hz.
  • Memory of 990 measurement results, ability to transfer the data to a PC via Bluetooth.
  • Power supply: batteries (4 x LR14) or rechargeable batteries (4 x NiMH).


Application:

  • The instrument is dedicated to personnel performing measurements in single and multi-family buildings, office buildings, industrial plants and any other places equipped with low voltage electrical systems. In addition, the meter is intended for maintenance personnel working on objects, where fault currents reach 4.4 kA (measured according to EN 61557). MZC-304 is also a great tool for checking circuits additionally protected by residual current devices.
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Short Circuit Loop Measurement Meter (MZC 306)

Short Circuit Loop Measurement Meter (MZC 306)
  • Short Circuit Loop Measurement Meter (MZC 306)
  • Short Circuit Loop Measurement Meter (MZC 306)
  • Short Circuit Loop Measurement Meter (MZC 306)
  • Short Circuit Loop Measurement Meter (MZC 306)
  • Short Circuit Loop Measurement Meter (MZC 306)
  • Short Circuit Loop Measurement Meter (MZC 306)
  • Short Circuit Loop Measurement Meter (MZC 306)
  • Short Circuit Loop Measurement Meter (MZC 306)
  • Short Circuit Loop Measurement Meter (MZC 306)
  • Short Circuit Loop Measurement Meter (MZC 306)
  • Short Circuit Loop Measurement Meter (MZC 306)
  • Short Circuit Loop Measurement Meter (MZC 306)
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Product Details:

BrandSonel
Model306
TyoeIndustry
ColorOrange
Weight0.5
Memory990

    Short Circuit Loop Measurement Meter:

    • Loop impedance measurement with resolution 0,01 Ω
    • Loop impedance measurement without tripping the circuit breaker > 30 mA with resolution 0,01 Ω (100...440 V)
    • Measurements possible in installations 110/190 V, 115/200 V, 127/220 V, 220/380 V, 230/400 V, 240/415 V, 290/500 V and 400/690 V (range 100...750 V)
    • Short circuit current indication
    • Voltage measurement up to 750 V and up to 250 V with resolution 0,1 V
    • Measurements using Uni-Schuko adapter or test wires 1,2; 5; 10 and 20 m
    • Memory of 990 records
    • USB connection with PC
    • Powered by disposable or rechargeable (4xLR14)
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        Additional Information:

        • Item Code: MZC306
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        MZC-306 Fault Loop Impedance Meter

        MZC-306  Fault Loop Impedance Meter
        • MZC-306  Fault Loop Impedance Meter
        • MZC-306  Fault Loop Impedance Meter
        • MZC-306  Fault Loop Impedance Meter
        • MZC-306  Fault Loop Impedance Meter
        • MZC-306  Fault Loop Impedance Meter
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        Product Details:

        Model Name/NumberMZC-306
        BrandSonel
        Net Weight1.3 kg
        Package Weight3.9 kg
        Package Width32 cm
        Package Height19 cm
        Package Length50 cm

        Lightweight and professional fault loop meter Owing to a wide range of operating voltages, the professional meter Sonel MZC-306 enables measurements in various types of networks. The device is invaluable for a variety of electrical work in low-voltage areas, such as homes and buildings, public facilities, small workshops and small factories.

        The resolution of the measurement result is 0.01 Ω - also when performing measurements in networks protected by RCD circuit breakers. The casing of the MZC-306 meter is made in IP54 protection degree, which ensures its resistance to mechanical damage. The cover of the device can be set in several positions, which enables easy and comfortable transport and use of the device.

        Capabilities:

        • Fault loop impedance measurement with 0.01Ω resolution
        • Low-current impedance measurement in circuits protected by RCD ≥ 30mA with 0.01 Ω resolution (100…440 V)
        • Operates in networks with voltages 110/190 V, 115/200 V, 127/220 V, 220/380 V, 230/400 V, 240/415 V, 290/500 V and 400/690 V (operating range 100…750 V)
        • Operating frequency 45…65 Hz
        • Calculation of fault current
        • Automatic differentiation between phase and phase-to-phase voltage
        • Possibility of applying 1.2, 5, 10, 20 m test leads or an adapter terminated by a power network plug
        • Measurement with swapped L and N conductors
        • Measurement of resistance (RS) and reactance (XS) components


        Additionally features:

        • Contact electrode - quick testing of proper connection of PE conductor.
        • Voltage measurement 0...750 V AC (0...250 V with resolution of 0,1 V).
        • Memory of 990 measurement results, ability to transfer the data to a PC via USB.
        • Power supply: batteries (4 x LR14) or rechargeable batteries.


        Application:

        • This instrument is irreplaceable for all kind of electrical works, especially in situations where there is a need to check the circuits under voltage of 400/690 V. The meter is used for tests in homes, apartment blocks, public buildings, small workshops or factories and even at wind farms.
        • The meter is a perfect tool for testing systems, where fault currents may reach 5.3 kA (measured according to EN 61557).
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        MZC-20E Fault Loop Impedance Meter

        MZC-20E  Fault Loop Impedance Meter
        • MZC-20E  Fault Loop Impedance Meter
        • MZC-20E  Fault Loop Impedance Meter
        • MZC-20E  Fault Loop Impedance Meter
        • MZC-20E  Fault Loop Impedance Meter
        • MZC-20E  Fault Loop Impedance Meter
        • MZC-20E  Fault Loop Impedance Meter
        • MZC-20E  Fault Loop Impedance Meter
        • MZC-20E  Fault Loop Impedance Meter
        • MZC-20E  Fault Loop Impedance Meter
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        Product Details:

        Model Name/NumberMZC-20E
        BrandSonel
        Net Weight0.4 kg
        Package Weight1.1 kg
        Package Width17.5 cm
        Package Height11 cm
        Package Length29 cm
        Ingress ProtectionIP 67

        Simple and ergonomic short circuit loop impedance meter Sonel MZC-20E.

        The small MZC-20E meter allows for precise measurement of short circuit loop impedance in networks of different voltage ratings. With the use of this instrument, it is possible to test network voltage up to 440 V. The device is especially useful for installers and measuring engineers providing services in single- and multi-family buildings, office buildings, industrial plants and other buildings and facilities equipped with low-voltage electrical installations. The MZC-20E meter is also perfect for electrical maintenance services. Regardless of the area of application, in each case it guarantees smooth operation and high accuracy of the results obtained. A further advantage of this tool is its ability to operate in adverse environmental conditions, which is made possible by its very robust casing. Despite its compact dimensions, the meter performs its role flawlessly and serves well wherever precise and instant measurements are required.

        Capabilities:

        • 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.


        Additional features:

        • Voltage measurement 0...440 V AC.
        • Power supply: batteries (4 x LR6) or rechargeable batteries (4 x NiMH).


        Application:

        • This meter is designed for measurements on objects protected by circuit breakers with rating up to 63 A, where fault currents reach 1 kA, i.e. in housing industry, single and multi-family houses, office buildings, small factories and all other facilities that are equipped with low-voltage electrical systems. In addition, the meter is a useful tool for maintenance services.
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        MZC-310S High-Current Fault Loop Impedance Meter

        MZC-310S  High-Current Fault Loop Impedance Meter
        • MZC-310S  High-Current Fault Loop Impedance Meter
        • MZC-310S  High-Current Fault Loop Impedance Meter
        • MZC-310S  High-Current Fault Loop Impedance Meter
        • MZC-310S  High-Current Fault Loop Impedance Meter
        • MZC-310S  High-Current Fault Loop Impedance Meter
        • MZC-310S  High-Current Fault Loop Impedance Meter
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        Product Details:

        Model Name/NumberMZC-310S
        BrandSonel
        Net Weight1.9 kg
        Package Weight6 kg
        Package Width32 cm
        Package Height19 cm
        Package Length50 cm

        The Sonel MZC-310S meter is one of the most technically advanced short-circuit loop impedance measuring instruments available on the market.

        With the use of the Sonel MZC-310S meter it is possible to test short circuit loop impedance in consumer networks as well as in distribution networks protected with high-current circuit breakers. At the same time as measuring the impedance, the shock and contact voltages can be measured. Where the condition for automatic power off cannot be satisfied, the facility may be authorised to operate on the basis of the voltage criterion.

        The application of the four-wire method and the flow of the measuring current in the 150/280 A pulse determine the high precision of the performed test. This single device hides a multitude of measurement capabilities, making it appreciated by specialists in many fields. The meter complies with the requirements specified in the EN 61557 standard.

        Capabilities:

        • Measurement of very low short circuit loop impedances (with resolution 0,1 mΩ) with a current of 150 A at 230 V; maximum 280 A at 440 V.
        • Measurement with a current of 23 A at 230 V, maximum 42 A at 440 V with resolution 0,01 Ω.
        • Measurements in installations with rated voltages: 220/380 V and 230/400 V and frequencies 45…65 Hz.
        • Ability to perform measurements in short circuit system: phase-phase, phase-PE, phase-N.
        • Differentiation between the phase voltage and the inter-phase voltage while calculating the short circuit current.
        • Ability to change the length of test lead (measurement with 2p method).
        • 4p (four-pole) method, test leads do not require calibration (measurement with current up to 280 A).
        • Measurement of resistance (RS) and reactance (XS) components.


        Additional features:

        • Touch voltage and touch shock voltage measurement with resistor 1 kΩ).
        • AC voltage measurement in range 0…440 V.
        • Frequency measurement 45.0...65.0 Hz.
        • Memory of 990 measurement results, ability to transfer the data to a PC via RS-232.
        • Power supply: rechargeable battery (5x LR14).


        Reaching the areas unattainable to others

        • In direct vicinity of transformers or in transformer stations, where the circuits are equipped with a high current protection (fuse-links with the rating of several hundred amperes, motor circuit breakers), fault currents may reach several hundreds of kilo-amps. Measurement of fault loop impedance in such networks requires a high-current meter, which is capable of measuring ZS values at the level of single milliohms. Our patented technical solution, which uses components not available in the commercial offer (unique fault resistor), enables us to offer the meter with perfect performance in such demanding conditions.


        Measurements without compromise

        • Commercially available fault loop impedance meters perform the measurements asymmetrically, i.e. using half-wave current. This solution introduces the transitional constant and DC constant, which does not always result in a linear behavior of the transformer during the tests. This in turn, affects the accuracy of the results. MZC-310S high-current fault loop impedance meter applies symmetrical current for measurements, which means that it uses the full wave - thanks to the advanced design of the measuring system and fault circuit.


        Application:

        • MZC-310S is used for measurements in low voltage systems (nominal voltage of 220/380 V or 230/400 V), where the prospective fault current may reach 55.7 kA (measured according to EN 61557). Low weight and high convenience of the device make it perfect for tests and measurements in large and complex manufacturing plants.
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        MZC-320S High-Current Fault Loop Impedance Meter

        MZC-320S  High-Current Fault Loop Impedance Meter
        • MZC-320S  High-Current Fault Loop Impedance Meter
        • MZC-320S  High-Current Fault Loop Impedance Meter
        • MZC-320S  High-Current Fault Loop Impedance Meter
        • MZC-320S  High-Current Fault Loop Impedance Meter
        • MZC-320S  High-Current Fault Loop Impedance Meter
        • MZC-320S  High-Current Fault Loop Impedance Meter
        • MZC-320S  High-Current Fault Loop Impedance Meter
        • MZC-320S  High-Current Fault Loop Impedance Meter
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        Product Details:

        Model Name/NumberMZC-320S
        BrandSonel
        Net Weight6.6 kg
        Package Weight10.3 kg
        Package Width35 cm
        Package Height42 cm
        Package Length49 cm

        If you rely on reliable tools in your work, the Sonel MZC-320S high current short circuit loop impedance meter is a proven choice for you.

        In the work of every measuring engineer, electrician or technician, it is sometimes necessary to make multiple measurements. In such situations, many devices get blocked due to overheating, causing downtime. The Sonel MZC-320S short circuit loop impedance meter has been designed to perform flawlessly even in repeated measurements. The unit features an efficient ventilation system to minimise the cooling time of the short-circuit resistor. The instrument performs very well in the widely understood power industry and allows for multiple measurements of the short circuit loop impedance without the need for long downtimes.

        Capabilities:

        • Measurement of very low short circuit loop impedances (with resolution 0,1 mΩ) with a current of 130 A at 230 V; maximum 300 A at 500 V. 
        • Measurement with a current of 24 A at 230 V, maximum 27 A at 500 V with resolution 0,01 Ω.
        • Measurements in installations with rated voltages: 110/190 V, 115/200 V, 127/220 V, 220/380 V, 230/400 V, 240/415 V, 290/500 V and frequencies 45…65 Hz.
        • Ability to perform measurements in short circuit system: phase-phase, phase-PE, phase-N.
        • Differentiation between the phase voltage and the inter-phase voltage while calculating the short circuit current.
        • Ability to change the length of test lead (measurement with 2p method).
        • 4p (four-pole) method, test leads do not require calibration (measurement with current up to 300 A).
        • Measurement of resistance (RS) and reactance (XS) components.


        Additional features:

        • Touch voltage and touch shock voltage measurement with resistor 1 kΩ).
        • AC voltage measurement in range 0…550 V.
        • Frequency measurement 45.0...65.0 Hz.
        • Memory of 990 measurement results, ability to transfer the data to a PC via USB and Bluetooth.
        • Power supply: rechargeable battery


        Reaching the areas unattainable to others

        In direct vicinity of transformers or in transformer stations, where the circuits are equipped with a high current protection (fuse-links with the rating of several hundred amperes, motor circuit breakers), fault currents may reach several hundreds of kilo-amps. Measurement of fault loop impedance in such networks requires a high-current meter, which is capable of measuring ZS values at the level of single milliohms. Our patented technical solution, which uses components not available in the commercial offer (unique fault resistor), enables us to offer the meter with perfect performance in such demanding conditions

        Measurements without compromise
        Commercially available fault loop impedance meters perform the measurements asymmetrically, i.e. using half-wave current. This solution introduces the transitional constant and DC constant, which does not always result in a linear behaviour of the transformer during the tests. This in turn, affects the accuracy of the results.

        MZC-320S high-current meter applies symmetrical current for measurements, which means that they use the full wave - thanks to the advanced design of the measuring system and fault circuit.


        Applications

        The instrument is used for measurements in networks with the following rated voltage:

        • up to 500 V, where the prospective fault current may reach 69.4 kA, as measured according to EN 61557.


        These parameters make the meter perfect for tests and measurements at wind farms, high-speed rail and in facilities controlled by power companies.

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        High-Current Loop Impedance Meter MZC-320S

        High-Current Loop Impedance Meter MZC-320S
        • High-Current Loop Impedance Meter MZC-320S
        • High-Current Loop Impedance Meter MZC-320S
        • High-Current Loop Impedance Meter MZC-320S
        • High-Current Loop Impedance Meter MZC-320S
        • High-Current Loop Impedance Meter MZC-320S
        • High-Current Loop Impedance Meter MZC-320S
        • High-Current Loop Impedance Meter MZC-320S
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        Product Details:

        BrandSonel
        UsageIndustrial
        Model320s
        Power SourceBattery
        AC Voltage550
        Memory999 records

        Measurement of very low short circuit loop impedances (with resolution 0,1 mΩ) with a current of 130 A at 230 V; maximum 300 A at 550 V or with a current 24 A at 230 V, maximum 30 A at 550 V (with resolution 0,01 Ω)

        • measurements in installations with rated voltages between: 110/190 V, 115/200 V, 127/220 V, 220/380 V, 230/400 V, 240/415 V i 290/500 V and frequencies 45...65 Hz,
        • ability to perform measurements in short circuit system: phase-phase, phase-protective, phase-neutral,
        • differentiation between the phase voltage and the inter-phase voltage while calculating the short circuit current,
        • ability to change the length of test lead,
        • four-pole method, test leads do not require calibration (measurement with current 300 A).
        • Touch voltage and touch shock voltage measurement with resistor 1 kΩ).
        • AC voltage measurement in range 0...550V.
        • Memory of 999 measurement results with an ability to transfer the data to a PC
        • Ability to transmit date thru USB.
        • Meter meets the requirements of the standard EN 61557.
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        High-Current Loop Impedance Meter MZC-330s

        High-Current Loop Impedance Meter MZC-330s
        • High-Current Loop Impedance Meter MZC-330s
        • High-Current Loop Impedance Meter MZC-330s
        • High-Current Loop Impedance Meter MZC-330s
        • High-Current Loop Impedance Meter MZC-330s
        • High-Current Loop Impedance Meter MZC-330s
        • High-Current Loop Impedance Meter MZC-330s
        • High-Current Loop Impedance Meter MZC-330s
        • High-Current Loop Impedance Meter MZC-330s
        • High-Current Loop Impedance Meter MZC-330s
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        Product Details:

        BrandSonel
        UsageIndustrial
        Model330s
        Power SourceBattery
        AC Voltage750v
        Method4 Pole Method

        Measurement of very low short circuit loop impedances (with resolution 0,1 mΩ) with a current of 130 A at 230 V; maximum 300 A at 750 V or with a current 24 A at 230 V, maximum 30 A at 750 V (with resolution 0,01 Ω)

        • measurements in installations with rated voltages between: 110/190 V, 115/200 V, 127/220 V, 220/380 V, 230/400 V, 240/415 V, 290/500 V and 400/690 V and frequencies 45...65 Hz,
        • ability to perform measurements in short circuit system: phase-phase, phase-protective, phase-neutral,
        • differentiation between the phase voltage and the inter-phase voltage while calculating the short circuit current,
        • ability to change the length of test lead,
        • four-pole method, test leads do not require calibration (measurement with current 300 A).
        • Touch voltage and touch shock voltage measurement with resistor 1 kΩ).
        • AC voltage measurement in range 0...750V.
        • Memory of 999 measurement results with an ability to transfer the data to a PC
        • Ability to transmit date thru USB.
        • Meter meets the requirements of the standard EN 61557.
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        MZC-304F Fault Loop Impedance Meter

        MZC-304F  Fault Loop Impedance Meter
        • MZC-304F  Fault Loop Impedance Meter
        • MZC-304F  Fault Loop Impedance Meter
        • MZC-304F  Fault Loop Impedance Meter
        • MZC-304F  Fault Loop Impedance Meter
        • MZC-304F  Fault Loop Impedance Meter
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        Product Details:

        Model Name/NumberMZC-304F
        BrandSonel
        Net Weight0.6 kg
        Package Weight1.9 kg
        Package Width30 cm
        Package Height27 cm
        Package Length16 cm
        Ingress ProtectionIP 67
        Data TransmissionBluetooth

        Get to know the Sonel MZC-304F compact short circuit loop impedance meter with many measurement functions.

        The presented model is one of the smallest instruments available on the market intended for short circuit loop impedance measurements in 230/400 V networks and continuity of protective and equipotential connections measurements. The MZC-304F meter performs short circuit loop measurements with a resolution of 0.01 Ω, also in the case of measurements in networks protected with RCD switches. With a backlit keyboard and display, the device can be used even in low light. The device has a sealed casing with IP67 protection, which is characterised by excellent resistance and ensures smooth operation even under adverse environmental conditions.

        The device meets the requirements set out in standard EN 61557.

        Capabilities:

        • Fault loop impedance measurement with 0.01 Ω resolution.
        • Low-current impedance measurement in circuits protected by RCD ≥ 30mA with 0.01 Ω resolution (range of 180...270 V)
        • Operates in networks with voltages 220/380 V, 230 V/400 V, 240/415 V (operating range 180...460 V)
        • Operating voltage range: 180…270 V (for ZL-PE and ZL-N) and 180…460 V (for ZL-L).
        • Maximum measuring current: 7.6 A for 230 V (3x10 ms), 13.3 A for 400 V (3x10 ms).
        • Operating frequency 45…65 Hz
        • Calculation of Ik fault current.
        • Measurement with swapped L and N conductors.
        • Measurement of resistance (RS) and reactance (XS) components.
        • Low-voltage measurement of continuity of circuit and resistance.


        Additional features:

        • Contact electrode - quick testing of proper connection of PE conductor.
        • Voltage measurement 0...500 V.
        • Frequency measurement 45.0...65.0 Hz.
        • Memory of 990 measurement results, ability to transfer the data to a PC via Bluetooth.
        • Power supply: batteries (4 x LR14) or rechargeable batteries (4 x NiMH).


        Application:

        • The instrument is dedicated to personnel performing measurements in single and multi-family buildings, office buildings, industrial plants and any other places equipped with low voltage electrical systems. In addition, the meter is intended for maintenance personnel working on objects, where fault currents reach 4.4 kA (measured according to EN 61557). MZC-304F is also a great tool for checking circuits additionally protected by residual current devices.
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        MZC-330S High-Current Fault Loop Impedance Meter

        MZC-330S High-Current Fault Loop Impedance Meter
        • MZC-330S High-Current Fault Loop Impedance Meter
        • MZC-330S High-Current Fault Loop Impedance Meter
        • MZC-330S High-Current Fault Loop Impedance Meter
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        Product Details:

        Model Name/NumberMZC-330S
        BrandSonel
        Net Weight5.3 kg
        Package Weight10.5 kg
        Package Width35 cm
        Package Height42 cm
        Package Length49 cm

        Heavy weight in high current measurements Choose the Sonel MZC-330S high-current short-circuit loop impedance meter with efficient ventilation system for smooth and effective operation without downtime.

        In case of multiple short-circuit loop impedance measurements, some measuring devices may get blocked. This problem does not affect the Sonel MZC-330S meter. To prevent blockages, the device is equipped with a special high performance ventilation system that significantly reduces the time required to cool the short-circuit resistor. The Sonel MZC-330S advanced high current meter is the right choice for professionals in the power, electrical, as well as installation and measurement industries. The device combines extensive measuring capabilities with high durability and resistance to harsh working conditions. A specially developed ventilation system translates into greater efficiency and significantly reduces working time.

        Capabilities:

        • Measurement of very low short circuit loop impedances (with resolution 0,1 mΩ) with a current of 130 A at 230 V; maximum 300 A at 690 V. 
        • Measurement with a current of 24 A at 230 V, maximum 37 A at 690 V with resolution 0,01 Ω.
        • Measurements in installations with rated voltages: 110/190 V, 115/200 V, 127/220 V, 220/380 V, 230/400 V, 240/415 V, 290/500 V and 400/690 V and frequencies 45…65 Hz.
        • Ability to perform measurements in short circuit system: phase-phase, phase-PE, phase-N.
        • Differentiation between the phase voltage and the inter-phase voltage while calculating the short circuit current.
        • Ability to change the length of test lead (measurement with 2p method).
        • 4p (four-pole) method, test leads do not require calibration (measurement with current up to 300 A).
        • Measurement of resistance (RS) and reactance (XS) components.


        Additional features:

        • Touch voltage and touch shock voltage measurement with resistor 1 kΩ).
        • AC voltage measurement in range 0…750 V.
        • Frequency measurement 45.0...65.0 Hz.
        • Memory of 990 measurement results, ability to transfer the data to a PC via USB and Bluetooth.
        • Power supply: rechargeable battery


        Reaching the areas unattainable to others:

        • In direct vicinity of transformers or in transformer stations, where the circuits are equipped with a high current protection (fuse-links with the rating of several hundred amperes, motor circuit breakers), fault currents may reach several hundreds of kilo-amps. Measurement of fault loop impedance in such networks requires a high-current meter, which is capable of measuring ZS values at the level of single milliohms. Our patented technical solution, which uses components not available in the commercial offer (unique fault resistor), enables us to offer the meter with perfect performance in such demanding conditions


        Measurements without compromise:

        • Commercially available fault loop impedance meters perform the measurements asymmetrically, i.e. using half-wave current. This solution introduces the transitional constant and DC constant, which does not always result in a linear behaviour of the transformer during the tests. This in turn, affects the accuracy of the results.


        MZC-330S high-current meter applies symmetrical current for measurements, which means that they use the full wave - thanks to the advanced design of the measuring system and fault circuit.


        Applications

        The instrument is used for measurements in networks with the following rated voltage:

        • up to 750 V, where the prospective fault current may reach 95,8 kA, as measured according to EN 61557.
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        Short-Circuit Loop Impedance Meter MZC-20E

        Short-Circuit Loop Impedance Meter MZC-20E
        • Short-Circuit Loop Impedance Meter MZC-20E
        • Short-Circuit Loop Impedance Meter MZC-20E
        • Short-Circuit Loop Impedance Meter MZC-20E
        • Short-Circuit Loop Impedance Meter MZC-20E
        • Short-Circuit Loop Impedance Meter MZC-20E
        • Short-Circuit Loop Impedance Meter MZC-20E
        • Short-Circuit Loop Impedance Meter MZC-20E
        • Short-Circuit Loop Impedance Meter MZC-20E
        • Short-Circuit Loop Impedance Meter MZC-20E
        • Short-Circuit Loop Impedance Meter MZC-20E
        • Short-Circuit Loop Impedance Meter MZC-20E
        • Short-Circuit Loop Impedance Meter MZC-20E
        • Short-Circuit Loop Impedance Meter MZC-20E
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        Product Brochure

        Product Details:

        UsageIndustrial
        BrandSonel
        Model20E
        Power SourceBattery
        AC Voltage440V
        Frequency65Hz

        The meter has been 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.
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        Prasanna Babu (Manager)
        Sonel Instruments India Private Limited
        No. 191, 10th Street, Maxworth Nagar, Kovilambakkam
        Keelkattalai, Chennai - 600117, Tamil Nadu, India
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