MKY23-20S

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IEC ClassII compilant

Conforming standards

  • IEC 61643-1/IEC 62305-4 compilant
  • RoHS compliant

Features

  • 3-electrode dimensions, width 75mm (MKY23series, 44 series)
  • A single unit provides protection across wire and to ground.
  • Accommodates from single-phase two-wire up to three-phase three-wire (MKY23 series)
  • Deterioration display function (warning contact output terminal attached: S type)
  • Easily installed into distribution boards
  • Mountable on DIN rail, can be attached with articulated mounting plate.
  • Mountable with screw (MKY23, MKY44)
  • With retractable terminal cover for electric shock prevention

Application

  • Low voltage power supply circuits in switchboards and distribution boards (AC 100V/200V, 400V)
Item

Measurement

conditions

MKY23-20

MKY23-20S
Maximum continuous operating voltagr (50/60Hz)(Uc) -

Single-phase two-wire AC 130V, 250V

Single-phase three-wire AC 110V/220V

Three-phase three-wire AC 250V
Maximum discharge current (Imax) 8/20µs 40 kA (inter line, to ground)
Nominal discharge current (Imax) 8/20µs 20 kA (inter line, to ground)
Voltage protection level (Up) Based on IEC

1.5 kV or less (inter line) 

1.5 kV or less (to ground)

External view

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