For the benefit of the lucky folks who have nabbed the ITC-100VL/RL, here's a quick way of finding out which one you receive.
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Pinch the two tabs and slide the cover off the entire unit.
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Side-by-side you'll notice that the one on the left has an extra relay (circled). This is the ITC-100RL
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If you see two blue resistors like below, then you have the ITC-100VL which can be used with Solid State Relays (SSR), so just carry on with any of the numerous guides that are out there.
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With the output of the ITC-100RL not being suitable for a Solid State Relay (SSR), I plan on using a contactor instead like this -
https://www.screwfix.com/p/british-general-20a-dp-contactor/6654p
Contactors aren't really designed for constant fast-switching so not ideal for switching kettle elements, but they're cheap enough to replace every now and again if required.
All wiring is the same, apart from the output (terminals 6,7 & 8)
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