I say this a lot in the forums, so if you’ve seen any of the other topics on pool equipment you’ve already heard me say this, but two words: “galvanic corrosion.”
Electrical devices that are in the splash zone of a swimming pool need a different safety rating. Your local code probably requires this. It’s for exactly the reason you gave – – avoiding fires.
Switches and relays that work great inside your house or even around water heaters or pond pumps may not be rated for use with swimming pool equipment for this reason. I don’t believe the Aeon switches are rated for anything within a pool’s splash zone.
It’s possible that your pump switch is outside the splash zone. The size of the splash zone varies in different codes for different townships, you just have to check with your own to see.
If it happens that the controls are within the splash zone, then you need to get a networked relay which is rated for this environment.
There is one on the official “works with SmartThings” List which is designed specifically for pool equipment and is rated for that environment. However, it’s much more expensive than the others and it sounds like you may not be comfortable with that kind of budget. It’s about $180 for the dual switch. But It can handle up to 30 A. So it’s good to know that it exists.
On the other hand, if your pool controller is, for example, inside a shed so that it’s not in the splash zone then you can ignore all of this. But I did just want to mention it. We see quite a few DIY people who don’t have electrical experience who put non-rated equipment near a swimming pool and it can be a real safety issue.