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LiftMaster Transformer, 120 240V, 75VA, 24VAC LIF K21 16699 liftmaster 20 40381 Box Type: Single Gang Model:80' Assembly Box Type: Single Gang There are two contact outputs that can be programmed to trigger during door release when the 600Ω output is used 24VAC LIF K21 16699 This is a replacement Transformer (120 240V
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