In-line surge protection in a compact DIN-rail mount format. - Protect data lines with state-of-the-art avalanche diode and thyristor technology. - Maximize uptime by protecting data lines at the source. - Low shunt capacitance reduces signal loss. - Fit up to 16 compact in-line surge protectors in only 1U of rack space with our Rackmount DIN-Rail Shelf (SPDINRAK).