PDU Plug Types

PDU Plug Types

There are a multitude of different plug types available for PDU (Power Distribution Unit) power connections. Below is an overview of the most commonly used types in data centres, server rooms, and industrial applications.

IEC C14 Plug

This 3-pin plug is commonly used for computer and server power supplies. It has a rated current of up to 10 amps and is often referred to as a “kettle plug” due to its similar appearance.

IEC C20 Plug

The C20 is a 3-pin plug designed for high-power applications, such as server racks and industrial-grade equipment. It supports a rated current of up to 16 amps and is a step up from the C14 in power handling.

16A Commando Plug

This plug is widely used in UK industrial applications and supports a rated current of up to 16 amps. It is often paired with 3-phase power supplies and known for its robust design suitable for harsh environments.

32A Commando Plug

Also used in industrial environments, this 3-pin plug handles up to 32 amps and is ideal for powering high-power equipment. Like its 16A counterpart, it is commonly associated with 3-phase power systems.

IEC 60320 (C13/C14, C19/C20)

This is a global standard for appliance couplers used in AC electrical systems. Common plug types in this category include:

  • C14 (plug) – Typically connects to C13 inlets on power supplies, used in lower power equipment.
  • C20 (plug) – Pairs with C19 inlets, used in high-powered servers and enterprise gear.

IEC 60309 (Commando Series)

This standard covers industrial and multiphase plugs and socket outlets, typically found in demanding environments. The 16A and 32A Commando plugs fall under this specification and are built for high-durability and power-heavy use cases.

  • IEC 60309 16A – Blue industrial plug for moderate-power devices.
  • IEC 60309 32A – Larger, rugged plug suitable for mission-critical and high-load environments.