PDUs are required to support all the "supplies" & "loads" for both HV DC (high voltage e.g. 96-800Vdc) & LV DC (low voltage e.g. 12-48Vdc).  These units contain required fuses, circuit breakers, current sensors, contactors (relays) &  other components, application dependents. In almost all cases these units need  to be custom engineered for your application – contact us for specific parts, pricing and lead-time