V 20-C/U-2PH: Bottom part for earthed photovoltaic systems up to Uoc = 1,000 V ? Suitable for V 50-B+C and V 25-B+C upper parts types 1+2 combination arrestor? Suitable for V 20-C upper parts type 2 surge arrestor? Protection circuit against transverse and longitudinal voltages? Protective circuit for earthed PV systems between + and –/Earth? Low protection level < 4.0 kV (Uoc max = 1,000 V DC with V20-C/0-440)? Low protection level < 3.0 kV (Uoc max = 900 V DC with V25-B+C/0-385)Low protection level < 2.6 kV (Uoc max = 600 V DC with V50-B+C/0-280)? Version ...-FS with remote signalling, potential-free changeover contact Indicated connectorsApplication: In photovoltaic systems between PH modules and inverters.
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