According to actual application requirements, when selecting cabinet PDU socket products, factors such as voltage, phase, plug, socket type, and function need to be considered. Different variable factors can lead to many types of cabinet PDU products.
1.Branch circuit: distributes power to server racks and cabinets through distribution boards, switches, or distribution boards. Wiring can operate under elevated floors, in overhead bus systems, or both, and terminate at sockets near server racks and cabinets. The load capacity of a branch is calculated in volt ampere (VA) or kilovolt ampere (kVA) units by multiplying the rated voltage by the rated current.
2.Voltage and phase number: In terms of power input, standard cabinet PDUs usually support single-phase or three-phase power input, and the appropriate input voltage needs to be selected according to the actual situation of the computer room and the mains voltage. Common input voltages include 110V, 200V, and 380V, with a frequency of 50Hz or 60Hz.
3.Output current and PDU plug type: The output current of the cabinet PDU needs to be determined according to the type of end device. Standard PDUs usually provide multiple output sockets to support power supply for different devices. Common types of output sockets include national standard 16A, 10A, C13, C19, NEMA, etc., to adapt to different types of IT equipment. Therefore, it is very important to understand the types of equipment and the types and quantities of sockets in server racks or cabinets.
4.Functional configuration of cabinet PDU: Cabinet PDU products can be equipped with various functional components, such as lightning and surge protection, filtering protection, overload protection, current and voltage display and other functional modules. At present, the new generation of intelligent PDUs can also provide users with multiple control methods, including local control and remote control. Local control is usually achieved through buttons or switches on PDU devices, which can manually control the power switch and current distribution. Remote control is usually achieved through network connections, which can be used to remotely control PDU devices through web interfaces, SNMP protocols, Telnet protocols, etc., to achieve remote monitoring and management of power supply.