Tag Archive: chain 24V Electric Window Opener / Chain Actuator SECO N 24 25 x 350 SE Products L25 Chain Window Opener 230v C30 Chain Window Opener 230v White Electric Window Opener / Chain Actuators ACK 4/ACK5 230 V & 24 V Models SMART 24V BLACK + BRACKETS FOR SKYLIGHT Chain Motor for roof windows and domes