Neutral and ground are tied inside disconnect switch?

[Moyal0621]

Homeowner here. I recently performed a successful main panel swap and an electrician that consulted with me pointed to a disconnect switch for my hot tub and said that it didn’t look like a GFCI disconnect switch so I’ll need to get a GFCI circuit breaker when I upgrade my panel. My previous breaker was not GFCI either. My new GFCI breaker pops instantly when I flip it on so I thought maybe I rubbed some wires raw and created a short. I started testing for continuity between all 4 wires (Romex 6/3) to find the short and found continuity between the neutral and ground wires. Upon further inspection, I discovered that the continuity between the neutral and ground wires existed far downstream of anything that I personally touched. So I went to the disconnect switch and found that the neutral wires from both line and load side are very purposefully tied to the ground wires of both line and load side. This answered my question about why I seemed to have a short between my neutral and ground wires.

1. Is this the correct wiring of the disconnect switch?

2. Am I supposed to use a non-GFCI breaker with my existing disconnect switch?

 

[roger]

Per the forum rules we can not assist in DIY projects, you should let the EC you mention correct any wiring flaws