IEC Class I/II compliant

Conforming standards

  • IEC 61643-11 compliant
  • RoHS compliant


  • MZS-200AV is a product that connects between the phase and neutral, connect MZS-NPE between the neutral and earth
  • Impulse discharge current up to 25 kA (direct strike waveform 10/350 µs)
  • Voltage protection level 2.0kV or less
  • Deterioration display function (warning contact output terminal attached)
  • DIN rail mountable (35mm)


  • Low voltage power supply circuits in switchboard and distribution boards (AC 100V/200V)
  • Power supply circuits in control equipment (AC 100V/200V)


                        Item  Measurement conditions  Performance
Maximum continuous operating voltage (50/60Hz)(Uc) - 275V
Impulse current (limp) 10/350µs 25kA
Short-circuit withstand capabillity (lsccr) L-NPE 50kA
Voltage protection level (Up) Based on IEC 1.5 kV or less

External view                                                   

Installation examples (MZS-200AV+MZS-NPE)