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The ST977-U2 is a low power, 5 volt, low profile single-in-line relay manufactured by Zettler. It is designed to provide reliable remote control switching with a fast and reliable operation while operating at a low power consumption. The relay is designed to easily install into most standard DIN and SAE cut-outs. The ST977-U2 is RoHS compliant and has a maximum switching voltage of 30VDC or 250VAC at 10A. It features a mechanical life expectancy of 10 million operations, an electrical life expectancy of 1 million operations, an operating temperature range of -40°C to +85°C, and a mechanical shock rating of 5G (11mS).