Three phase sockets can have an earth pin of a larger diameter than the socket type, and located in a different position depending on the voltage rating, making it impossible to mate, for instance, a blue plug with a yellow socket. For example, a 16 A 3P+E 400 V plug will not connect to a 16 A 3P+N+E 400 V socket and a 16 A P+N+E 230 V plug will not mate with a 32 A P+N+E 230 V socket.
Three phase sockets have round 4-pins + earth connectors, connected to 5 wires: 3 live wires + neutral + earth. Voltage and other socket characteristics are represented by colour coding.
Our broad selection of quality three-phase sockets include a variety of durable industrial cable mount plugs, designed around reliability and simplicity of use. RS PRO 3-phase sockets use toughened casings for better strength and stability, and are quick and easy to assemble in a wide range of work environments.
We also stock three phase sockets from an array of other leading electrical engineering component manufacturers, including ABB, Bals, Hirschmann, ITT Cannon, Legrand, Mennekes, and Merlin Gerin.
What are the key features of a quality 3 phase socket?
In addition to robust construction in high-grade materials, further benefits you may wish to look for when buying a three-phase socket might include:
- Ingress protection (IP) ratings of IP44 (splash-proof) or above, for better resistance to environmental moisture and dirt
- High thermal stability and mechanical strength
- Halogen-free plastics with self-extinguishing function in the event of combustion
- Seals and o-rings made from sturdy rubber in advanced-formula compounds, such as non-aging EPDM elastomer
- Nickel-plated brass contacts for an optimally reliable connection
- Enhanced corrosion and abrasion resistance
What are some typical applications of a three-phase socket?
These components are widely used across a variety of industries and sectors. Common uses include on a range of construction sites and manual work zones; in numerous agricultural settings for powering electrical appliances stored in barns and sheds; for multiple types of sports and entertainment events requiring dependable lighting and power delivery; and on many workshop/garage floors or commercial premises.
