First, to answer your question, the ML 27 takes 15A (smaller truncated) IEC connectors. I'm pretty sure all ML amps do, even the new models.
A somewhat associated issue, which has come up before has to do with whether or not certain aftermarket PCs can be called 20A cords if they only have 15A IEC connectors, even if they have 20A AC plugs on the other end and are made from 10AWG (or larger) conductors.
I think the answer is "no" and I'm sure Underwriters Laboratory would think so. Though there is nothing illegal about making a PC with "20A -sized" conductors and 15A plugs on each end, it's not a 20A cord unless it has 20A plugs on each end as well.
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A somewhat associated issue, which has come up before has to do with whether or not certain aftermarket PCs can be called 20A cords if they only have 15A IEC connectors, even if they have 20A AC plugs on the other end and are made from 10AWG (or larger) conductors.
I think the answer is "no" and I'm sure Underwriters Laboratory would think so. Though there is nothing illegal about making a PC with "20A -sized" conductors and 15A plugs on each end, it's not a 20A cord unless it has 20A plugs on each end as well.
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