CEE plugs and sockets for rated voltages of up to 50V (low voltage)

Since no earth contact is required in plugs and sockets of rated voltage up to 50V, two keyways instead of one are provided the collar. They are accordingly termed the major and minor keyways. The major keyway is always in the 6 o'clock position. Depending on voltages and frequencies, the minor keyway is always in accordance with table 103 taken from EN 60309-2:1999.

Arrangement of the minor keyway (major keyway 6 o'clock) for various voltages and frequencies using clock-face positions in accordance with table 103 taken from EN 60309-2:1999.

Rated operating voltage of plug or socket in V

Frequency Hz

Clock-face position of keyway (major keyway = 6 o'clock)

Colour code

20 to 25

50 and 60

no minor keyway

violet

40 to 50

50 and 60

12

white

20 to 25 and 40 to 50




100 to 200

4

green

300

2

green

400

3

green

> 400-500

11

green

Direct Current

10

* violet or white

25

Direct Current*

8
*for portable equipment of electrical incubators - operation with 12V or 24V DC in rescue vans or helicopters.

 


* MENNEKES offers this device in neutral gray since two colours are specified.

Positions 1 and 9 are reserved for future standards and for design reasons, positions 5, 6 and 7 are not available for use.

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