Low voltage ZR-W
Low voltage ZR-W

The switches in the system ZR-W are designed for:

  • Electricity distribution at all levels
  • Control and protection of electrical equipment against short circuits and overloads


Main uses:

  • Main switches
  • Sub-distribution boards
  • Control cabinets


Recommended industrial fields:

Heavy industry:

  • Mine
  • Steel plants
  • Coking plants


Light industry:

  • Papermaking
  • Textile
  • Household appliances


Other industries:

  • Chemical/petrochemical
  • pharmaceutics
  • Power and cogeneration plants


Infrastructure:

  • Date center
  • Airports
  • Office buildings
  • Shopping centers
  • HOSPITALS


Electrical data:

  • Rated insulation voltage:
  • 690 V / 1000 V / 1500 V AC, up to 1500 V DC
  • Nominal connection voltage:
  • 400 V / 500 V / 690 V / 1000 V AC, up to 1200V DC
  • Test impulse withstand voltage: 8 kV
  • Nominal frequency: 50 Hz
  • Nominal current of the switchboard: from 1000A to 6300A
  • Rated short-circuit current (1s): up to 105 kA
  • Peak current: up to 231 kA
  • Internal arc resistance: 105kA/1s


Mechanical data:

  • Width: between 400 mm and 1200 mm
  • Height: 1900 mm / 2200 mm
  • Depth: 600 mm, 800 mm or 1000 mm
  • IP protection degree: from IP20 up to IP54
  • Mechanical protection degree IK: up to IK10
  • Compartment shape (depending on the type of cabinet): from 2A up to 4B


Surface protection:

  • Frame: galvanized sheet metal 2.5 mm
  • Doors / lids: painted sheet metal 1.5 mm / 2 mm
  • Front panels: painted sheet metal 1.5 mm
  • Standard painting: RAL 7035 (other colors on request)


Plastic components:

  • Halogen-free
  • Self-extinguishing
  • Fire resistant
  • CFC-free


Operating conditions:

  • Ambient temperature:
  • Minimum: -5°C (or -25°C in special version)
  • Maxim: +40°C
  • Daily average (24h): between -5°C and +35°C
  • Relative humidity: up to 50% at 40°C
  • Installation altitude: up to 1000 m above sea level
  • Installation atmosphere: free of conductive dust or aggressive chemicals


The ZR-W system offers reliability, safety and versatility in the most demanding industrial and infrastructure conditions.

Contact us

Specialized electrical installations of any complexity in Chisinau and throughout Moldova