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 concerned about use of the earth pin on the 3 pin connector for something other than a protective conductor.

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