Mean well 1500w single output switching power supply rsp 1500 series mean well rsp 1500 24 the mean well rsp 1500 24 is a 1500w single output power supply from the rsp 1500 series this acdc enclosed switching power supply has a low profile of 1u and is highly reliable it runs with an efficiency of up to 90 with forced air cooling by a built in dc ball bearing fan the rsp 1500 24 is ideal for applications requiring energy savings no noise limited space for installation as well as econ