I would say that you are spot on with what you assumed. Just make sure that it is a 230v coil and you should really fit a fuse in the 230v used for your coil circuit, right at the start, say 5 amp. Otherwise your control wiring 1mm or 1.5mm would be protected by the heater fuse, would that be around 32A. Your wiring would melt before the fuse blew.
I did something similar today on micro miniature terminal block but I can blame my aging eyes for that. Took me a while to find why the unit wasn't responding to the input sensor.
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