302-ET-194开关量感温棒All302SeriesDetectorsarenormallyopendevicesandare***ailableineither135°F(57°C)or194°F(90°C)ratings.Eachunitisc***tructedwithahighexpansion.040anodizedaluminum（氧化铝）sensingshellandfinesilvercontactswhicharehermeticallysealedtoensurereliableoperation.ElectricalRating（额定电功率）6-28VDC,1amp.(allmodels)302-135-Interior,VerticalMountingstaticTemperature135°FMaximumSpacing-UL50'x50'302-194-Interior,VerticalMountingstaticTemperature194°FMaximumSpacing-UL50'x50'302-ET-135-AllWeather,VerticalMountingstaticTemperature135°FMaximumSpacing-UL50'x50'302-AllWeather,VerticalMountingstaticTemperature194°FMaximumSpacing-UL50'x50'302-AW-135-MoistureandDustProof,VerticalMountingstaticTemperature135°FMaximumSpacing-UL50'x50'302-AW-194-MoistureandDustProof,VerticalMountingstaticTemperature194°FMaximumSpacing-UL50'x50'302-EPM-135-ExplosionProofScrewBase,VerticalMountingstaticTemperature135°FMaximumSpacing-UL40'x40'302-EPM-194ExplosionProofScrewBase,VerticalMountingstaticTemperature194°FMaximumSpacing-UL40'x40'302-ET-194)