Ceeform is a term used to describe a range of single and three phase connectors as defined by IEC 60309.

You are looking at the mating face of the ceeform socket.

Motor Control

Used to use 3 pin yellow connectors, but now uses 4 pin yellow connectors, since the HSE were informed that the German safety authority TUV was very concerned about use of the earth pin on the 3 pin connector for something other than a protective conductor. It was being used for the control Voltage in some hoists and was during operation at 110V. PCM, the PSA and the HSE were involved in obtaining permission to use a plug and socket system for the control of an Electro-Mechanical device. TUV wanted a completely different solution.

PCM's article about this issue is here

See Also

• Blue Room post on the subject
• Motor Control
• Single Phase
• Three Phase
• Connectors category

External Links

• Walther page on Ceeforms
• Mennekes page on Ceeforms