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Sonel MZC-310S

Sonel MZC-310S

Loop Meter for high testing current up to 280 A

Manufacturer:
Sonel

More Products by Sonel
Solution Type: Short circuit loop
סונל Sonel MZC-310S בודק לולאת תקלה זרם גבוה עד 280 אמפר

The MZC310S is a professional portable meter for testing electrical installations with over-current circuit breakers. The instrument measures short-circuit L-PE, L-N and L-L loop and prospective short-circuit loop current. A measurements can be done either with low testing current (up to 42 A) with 2-pole method or high testing current (up to 280 A) with 4-pole method that enables measurements with very high accuracy and resolution. The results can be stored in the internal memory and send to a computer via serial interface.



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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 or measurement with a current of 23 A at 230 V; maximum 42 A at 440 V.
  • measurements in installations with rated voltages between: 220/380 V and 230/400 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 shortcircuit current,
  • Ability to change the length of test leads (measurement 23/42 A),
  • four-pole method, test leads do not require calibration (measurement 150/280 A).
Touch voltage and touch shock voltage measurement (with resistor 1 kΩ). AC voltage measurement in range 0...440 V. Memory for 999 measurement results with an ability to transfer the data to a PC. Meter meets the requirements of the standard EN 61557. Electric security:
  • type of insulation: double, according to EN 61010 - 1 and IEC 61557
  • measurement category: CAT IV 300 V acc. to EN 61010 - 1
  • protection class acc. to EN 60529: IP20
Other technical data:
  • power supply alkaline batteries LR14 (C) (5 pcs.)
  • resistor limiting the current:
  • for measurement 4p: 1,5 Ω
  • for measurement 2p: 10 Ω
  • number of short circuit loop measurements (alkaline batteries): min. 2000 (4/min.)
  • temperature coefficient: ±0,1% of measured value /°C
Rated operational conditions:
  • operating temperature: 0...+40°C
Voltages measurement (True RMS)


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