ZNR-1 Electrocution voltage selector

ZNR-1 Electrocution voltage selector



Electrocution voltage selectors are used for forcing measurement current in tested earth electrode system, during touch and step voltage measurements. Voltage selector and electrocution voltage meter MNR-1, which provides touch and step voltage measurements, form complete set for earth system testing.


ZNR-1 is current source of rated power 3.5 kVA, which generates alternating current up to 50 A, with arbitrary long time.
Selector is equipped with digital ammeter and voltmeter for output parameter measurements.
High value of current enables obtaining measuring voltages higher than noise voltage level and achievement of required measurement accuracy.
When measuring circuit resistance is high, one can use two additional output voltage ranges:

  • 200 V AC and current up to 18 A,
  • 400 V AC and current up to 9 A.

Version with output voltage 1000 V is available on special request.



Output power
3,5 kVA
Output voltage
100, 200, 400 V AC
Current regulation smooth up to 50 A AC
Operation temperature
-5 ºC ÷ +40 ºC
Enclosure protection IP 42
Power supply
230 V, 50 Hz
Dimensions 530 x 430 x 210 mm
Weight about 50 kg


All questions should be directed to:

  • mgr inż. Zygmunt Pilny, This email address is being protected from spambots. You need JavaScript enabled to view it.32 237 66 70

Dane kontaktowe

Zakład Pomiarowo-Badawczy Energetyki


ul. Świętokrzyska 2, 44-101 Gliwice

woj. śląskie, Polska

(+48) 32 237 66 03 (sekretariat)

(+48) 32 237 66 15 (centrala)

(+48) 32 231 08 70 (fax)

Nasze wyróżnienia





UE ŚCP Europejskie Fundusze Strukturalne

UE Program Operacyjny Inteligentny Rozwój

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