DC Circuit protectors

Surge arrester type 1+2 1000 V Noark

Manufacturer: Noark Electric

INDEX: 111759

Product number: 111759
Product information "Surge arrester type 1+2 1000 V Noark"

The Ex9UEP type surge arresters are designed to protect photovoltaic applications. They are designed and manufactured according to the standards of EN 61643-31, PV class T1+T2. An optical indicator of the varistor insert status informs about the element wear.

The built-in auxiliary contact allows the electrical signalling of the insert status. Safe replacement of worn out varistor elements is possible without disconnecting the device.

Distinguishing features of the product:

  • DC surge arresters for photovoltaic systems
  • PV I1 + T2 (Class I+II, Type 1+2, B+C)
  • Rated discharge current In 20 kA (8/20 µs)
  • Maximum discharge current Imax 40 kA (8/20 µs)
  • Surge current Iimp 6.25 kA (10/350 µs)
  • Maximum continuous operating voltage UCPV from 500 V DC to 1500 V DC
  • For earthed and ungrounded photovoltaic systems
  • Replaceable insert

General features:
Width - number of modules: 3
Dimensions [mm]: 52.0 x 90.0 x 62.0
Electrical characteristics:
DC protection type: DC Surge arrester