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Two-pole surge protective device with a modular width of 36 mm provides protection against surges resulting from indirect lightning strikes and switching operations, for example, in homes, offices, or industrial buildings. The ESPAC series surge arresters are designed for use in single-phase sub-distribution boards in buildings. The ESPAC V T3 5/275 series surge arresters are designed for use in the main distribution boards of large buildings. Device equipped with replaceable modules with an optical indicator informing about the device's status: green - functional, red - module needs to be replaced. This version also features a remote signaling contact. The device can be installed in two positions on a TH35 rail. Installation at the boundary of LPZ 0 and LPZ 1 zones or higher in the building's main distribution board (recommended). Can be connected to the power terminals via a cable or a busbar - fork or prong type. Varistors and a spark gap are the executive elements in the arrester, with a CT2 connection type and a 1+1 configuration. Additional protection for surge-sensitive electronic devices. Data sheets for the devices can be downloaded at https://elkobis.com.pl/kategoria-kb/charakterystyki-urzadzen-spd/