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