I'm building a "RIMS" control panel. Inside this panel is 120v main that feeds to a water heater element and a pump. This pump pumps water over the heating element, the element is controlled by an Arduino. I'm looking for thoughts if this drawing is safe, do I need fuses, and where should they be? Any other safety measures I need to take?
Power is coming from a 20amp breaker with GFCI protection. Except for low voltage stuff all outlets, switches, wiring, etc will be rated for 20amp for good measure. (I only 'expect' to need 15)
This is for a home brewery so the potential for water splashing around is something to keep in mind. The enclosure will be as water proof/resistant as I can make it.
PS - What ever I do I'd like to make sure that the element can NOT fire if the pump isn't turned on.