Class 2 Open Cage Polymeric

Class 2 Open Cage Polymeric

OCP2 Open Cage Polymeric Surge Arresters - Class 2

Class 2 Open Cage Polymeric
Class 2 Open Cage Polymeric
  • Protection of MV networks, sensitive equipment and substations from lightning and switching surge related over-voltages in areas with relatively high iso-keraunic levels.
  • Direct moulded housing to prevent moisture ingress
  • Low residual voltages
  • High-energy handling
  • Superior TOV performance
  • Safe non-shattering short current behaviour to higher current levels
  • The crimped structural construction ensures light weight product with optimal mechanical strength
  • Maintenance free
  • Hydrophobic silicon housing (tracking and erosion resistant)
  • Tested in accordance with IEC60099-4 at independent accredited laboratories

Please contact your nearest sales office for help in product selection and pricing

Technical Data

Specification should include

  • Material (porcelain or Polymeric)
  • Lightning impulse withstand voltage (BIL)0Um kV r.m.s - Lightning impulse withstand voltage of equipment (BIL) kV r.m.s
  • Creepage distance (mm/kV)
  • Maxiumum continuous operating voltage
  • System temporary over voltage
  • System temporay over voltage duration
  • Umax (maxiumum system phase to earth voltage in system) (kV)
  • Duty rating (kV) – “Duty cycle voltage” is a term used in IEEE standards; IEC equivalent would be as follows: Surge arrester rating (kV)
  • Line discharge class (1-5)
  • Energy capability (kJ/Kv at Ur)
  • Pollution performance 1-4/A-E(16,20,25,31,40/50mm)
  • Earthing system:multi earthed, effectivity earthed, resistive earthed, isolated, Reactance)
  • Fixing arrangements: Line termination, Earth termination, mounted arrangement.
  • Surge counters required?

Generic Technical Data

OCP1 S/L Series 3-29kV
Rated discharge current (8/10μs) 10kA
Line discharge class 1 according to IEC 60099-4
Operating duty impulse withstand current (4/10μs) 100kA
Long duration current impulse (2000μs) 350A
High current short circuit: (pre-failing methord)
(safe non-shattering failure mode)
Energy 4.1J/kVUc
Service conditions (Ambient temperature) –60 to +60°C



Part Number Price £ Quantity
PolymericSurge-Class 2 POA  
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