110 breaker tripping

CaptSwagger · Joined: 20 Feb 2016 Posts: 2

Hello, for some reason the 110 side of my control panel keeps tripping the breaker (build in progress).. is what i have wire not correct?

There is a HLT side (220v 5500w), a Boil side (240v 4500) and the HEX side (120v 1500w) both the HLT and the boil sides (systems work just fine) Other than the PID being powered from one of the 240 sides (which im told is ok) all three systems are more or less independent of each other.

Checking.. i can plug the system in, and the PID comes on just fine (little red light blinks), and starts switching the SSR (little red light blinks).. but the second element is plugged in it trips the breaker.

i did notice.. that the Output side of the SSR and the N bus show 120v even when the PID is off and not switching it on...? (but im told that there is some leakage of the SSR)??? (high/low) not (on/off)

1500w elment on a 15A circuit is ok right? thats only ~12.5A...

CaptSwagger · Joined: 20 Feb 2016 Posts: 2

see below (not powered on)

Fizzik · Joined: 12 Feb 2017 Posts: 1 Location: Ontario, Canada

First of all in your picture I noticed the infinite measurement between GND bus bar and your outlet/plug to the element. Was this a mistake in diagram?

You also say you measure 120V on the neutral bus bar? Where are you measuring this across? Are you putting your second lead on GND?

Do yourself a favour and ensure your wiring from your GFCI breaker is correct. Measure Hot-Neutral, Hot-GND, Neutral-GND at the outlet. Hot-Neutral should be 120V. Hot-GND should be 120V and Neutral-GND should be very close to 0 if it's not then your neutral and hot are wired backwards.

As well as a side note your wiring from the GFCI the neutral should be run from the actual breaker as your GFCI should have it's own neutral lead to your main panel neutral bus bar.

Your measurement you claim to be 120V when the SSR is off between Hot-Neutral is correct and should always read 120V. This is because you measure across an 'open' you will always get applied voltage 120V.

btw I'm not an electrician just some things you can look at.