Electric
Surge Protection Type 2, IT, Malmbergs 5271702

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Surge Protection Type 2, IT, Malmbergs 5271702

Intermediate protection for mounting at the incoming switchboard for protection against overvoltages caused by lightning strikes or other disturbances

Description

Intermediate protection for mounting at the incoming exchange for protection against overvoltages caused by lightning strikes or other disturbances. The surge protectors are varistor type. Supplied complete in 3- or 4-pole design for direct connection. Installed parallel to incoming line. Triggered protection by visual indication. Supplied with alternating alarm relay.

  • Dissipating capacity : 20kA, 8/20μs
  • Alarm relay : Yes
  • Connection : PZ2
  • Width: 54 mm
  • Operating temperature: -40°C - +80°C
  • Earth system : IT
  • Rated voltage: 230V
  • Max. breaking capacity : 40kA, 8/20μs
  • Max. insurance: 125A gL/gG
  • Max. continuous operating voltage: 440V
  • Number of poles: 3
  • Reaction time : <25ns
  • Residual voltage : <2.0 kV
  • Test class : 2 (EN 61643-11)
  • Connection area: 4-35 mm²
  • Tightening torque: 3.5Nm

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