The PROTEC BS(R) 25 series of low cost, 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 as per IEC 62305. It consists of two separate, high performance dual MOV blocks, each with a separate disconnection device. Category IEC/EN/VDE: Class I / Type 1 / B+C Location of use: Main distribution boards Protection modes: L/N - PE, L - PEN Protective element: High Energy MOV High surge discharge ratings: Iimp = 25kA, Imax = 100kA Internal protection and safety: Separate thermal disconnector for each MOV block Status indication: Mechanical flag + remote contacts (R)