LiftMaster Transformer, 115/230V, 24V, 50VA | LIF-K21-3240 19.6 ft arm Motorized zoom lens enables flexible

Motorized zoom lens enables flexible focal length adjustment and easy installation

The G-5™ is capable of continuous cycle operation

Use only LiftMaster monitored entrapment protection devices to meet UL 325 requirements

and other buildings which require free entrance at certain times and exit-only at other times

LiftMaster Transformer, 115/230V, 24V, 50VA | LIF-K21-3240 19.6 ft arm Motorized zoom lens enables flexibleLiftMaster Transformer, 115 230V, 24V, 50VA LIF K21 3240 This is a replacement Transformer (115 230V, 24V, 50VA) for use with various LiftMaster Commercial Door Operators. Also known as: 21 3240 Genuine LiftMaster replacement part.