The Class B series of over-voltage surge protective devices has been developed to protect against partial direct and indirect lightning discharges and is intended to provide protection in zones 0A - 1 per IEC 62305.
Category IEC / EN / VDE: Class I II / Type 1 2 / B + C. This range incorporates remote signalling contacts for central monitoring of SPD health. DVSB275652TNS for TNS single phase networks with separate N and PE conductors. DVSB400654TNS (65kA) for TNS three phase networks with separate N and PE conductors. DVSB4001004TNS (100kA) for TNS three phase networks with separate N and PE conductors. DVSB4001004TT for TT three phase networks where N to PE galvanic isolation is required.
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