20" Opening Back Draft Damper

Nylonic Compound Body Rated to 160ºc Six Each Terminals Iron(+) and Constantan(-) Twelve Terminals Total 28mm Wide X 13mm High X 151.5mm Long Two 4.5mm Holes Each End

Nylonic Compound Body Rated to 160ºc Five Each Terminals Iron(+) and Constantan(-) Ten Terminals Total 28mm Wide X 13mm High X 131.5mm Long Two 4.5mm Holes Each End

Aluminum Body With A Black Anodized Finish Rated At 0.6°C/W Designed For Use With Hockey Puck Style Solid State Relays Width 3.2"(81mm) x 5.89"(149.6mm) Long x 3.6"(91mm) High Din Rail Mounted OR Base Mounted Relay Mounting Holes Are 8/32 Threads Removes Heat Away From Solid State Relays