Yes, they are Powercons.One question, in the second pic, are the blue and white connectors Powercons?
They are rated for 20 amps whereas 'most' IEC connectors are rated for 10 amps (heavy duty IEC's can be found for 15 amps but cost around $ 18.00 each.)
Basicly it means that if the connection has power going to it you should not use the connection. Because these connection twist in you have a very good chance of producing a nice arc. If there is a hungry load on the end of the line you have a really good change of producing a very large arc. So with these connections you have to connect everything, flip your mains, and not disonnect untill the mains are off.Can you define "breaking ability" please? I take it that it means one can easily break the electrical connection in the vent of an emergency?
Taken straight from Neutrik.