"Schuko" is a registered trademark referring to a system of AC power plugs and sockets that is defined as "CEE 7/3" and "CEE 7/4".
The word “Shuko” is a shortening of the German „Schutzkontakt“ which means “protected socket”.A Schuko plug features two round pins of 4.8 mm diameter for the line and neutral contacts, plus two flat contact areas on the top and bottom side of the plug for protective earth.
Technical parameters of CEE-Wall mounted socket, 5-pole, 400V, IP44:
| Net width | 50 mm |
|---|---|
| Net height | 64 mm |
| Netto depth | 45 mm |
| Net weight | 0.04 kg |
| Power loss | 1 W |
| Rated current | 16A |
| Poles | 3 |
| Contact arrangement | 2P+PE |
| IP Rating | IP44 |
| Color code | blue |
| Rated operating voltage | 250V |
| Frequency | 50/60Hz |
| Material | PA6, PA66 |
| Contact material | Bronze |
| Connection type | Spring terminal |
| Standard | IEC 60884-1 |
| Min. cross section, solid wire | 1.50 mm² |
| Max. cross section, solid wire | 2.50 mm² |
| Stripping length L/N | 12 mm |
| Stripping length PE | 12 mm |
| Glow wire resistance | 650°C |
| Packaging units | 1 pc, 250 pc |
What is CEE?
The International Commission on the Rules for the Approval of Electrical Equipment (IECEE) was a standards body which published Specification for plugs and socket-outlets for domestic and similar purposes as CEE Publication 7 in 1951. It was last updated by Modification 4 in March 1983.CEE 7 consists of general specifications and standard sheets for specific connectors.
What do the two digits in an IP Rating mean?
IP rating is also known as Ingress Protection or International Protection ratings which are defined to the international standard of EN 60529. This standard is used to define the levels of sealing effectiveness of electrical enclosures against intrusion from foreign bodies such as tools, dirt and moisture.
The rating consists of the letters IP followed by two digits, if a number is replaced by X this indicates that the enclosure is not rated for that specification.
IP65 = First Digit - Solids
The first digit indicates the level of protection that the enclosure provides against access to hazardous parts (electrical conductors, moving parts etc) and the ingress of solid foreign objects.
IP65 = Second Digit - Liquids
The second digit defines the protection of the equipment inside the enclosure against various forms of moisture (drips, sprays, submersion etc).
| First Digit | Intrusion Protection | Second Digit | Moisture Protection |
| 0 | No protection. | 0 | No protection. |
| 1 | Protected against solid objects over 50mm, e.g. accidental touch by hands. | 1 | Protected against vertically falling drops of water, e.g. condensation. |
| 2 | Protected against solid objects over 12mm, e.g. fingers. | 2 | Protected against direct sprays of water up to 150 from the vertical. |
| 3 | Protected against solid objects over 2.5mm, e.g. tools & wires. | 3 | Protected against direct sprays of water up to 600 from the vertical. |
| 4 | Protected against solid objects over 1mm, e.g. wires & nails. | 4 | Protected against water splashed from all directions, limited ingress permitted. |
| 5 | Protected against dust limited ingress, no harmful deposits. | 5 | Protected against low pressure jets of water from all directions, limited ingress permitted. |
| 6 | Totally protected against dust. | 6 | Protected against strong jets of water, e.g. on ships deck, limited ingress permitted. |
