We beat this around quite a bit in the http://www.homebrewtalk.com/f170/sho...you-do-212079/
thread. Runs4beer did get this answer directly from Switchcraft: "The connectors are rated for 50 A (for the Fast-on terminal type) and 1500 VAC rms. There should be no problem with the customer's application."
Here's what I posted in the other thread:
Switchcraft certainly stands behind using the HPC (High Power Connector) series for this type of use. In addition to the email cited above, from the product sheet:
• Power audio amplifiers
• Process Controls
From the specs:
High Power Connector, 30 A Current Rating, Silver-Plated over Copper Alloy Contact Material
30 A Rating Per UL 1977 on PC Mount Versions
50 A Rating Per UL 1977 on FastonŽ Versions
1500 VAC (RMS)
I am still a bit leery of power inlets and outlets with the same configuration, but I might consider using the panel mounts as an inlet to the control panel and an inlet to the element. With a NEMA 14-30 plug on the other end of the control panel power cord, and a NEMA 6-30 plug on the other end of the element power cord, even I could not screw that up.
Edit: I could also use it as an inlet to a spa panel with another 14-30 plug on the other end.