Product introduction

        TRS3 SPD series is applying to the system of solar photovoltaic power and system of other dc power supply. Installed in dc circuit power system, it helps to protect the indirect lighting current, direct current and other transient over voltage.

Structure and Principle

      In the photovoltaic power system, the positive pole, negative pole and ground wiring all with protection.In normal, protector is in a high-resistance state. When the power grid is stroked by lightning or others to caused the over voltage, the protector will leak the over voltage into the ground in nanoseconds to protect the equipment which connect with power grid. When the surge voltage dis appeared through the protector.The protector will recover to high -resistance state, and the power grid is going to working without any effects.

Product Installation

      With 35mm standard Din-rail mounting, connecting copper stranded conductor is 2.5~35mm².

      Each pole is necessary with protection-using fuse or miniature circuit breaker to protect. It helps to protect them in the short circuit when SPD breakdown.

      SPD is installed in front of protected equipment and connected with power supply circuit. A class SPD is installed in the building home-entry line hold larger surge current total distribution box. B, C class products most install on the floor distribution box, D class SPD is installed in front of equipment which with low surge current and in a low residualvoltage place.

Model and meaning                                                               Schematic diagram                             Dimension drawing

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DC Series Classification