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That SSR might be a concern. In my custom build I discarded that exact SSR (which came with a heated bed) because of safety concerns.
There are several youtube videos that document the risk. Some of those SRR's just ignite, others have 1/2 the listed rating, and some are hot rather than grounded.
I am using instead a Sensata-Crydom CWD245 with a huge heat sink and a fan. $47 for the SRR and $15 for the heat sink is cheap insurance vs a house fire.
Also, The power supply case should be tested with an ohm meter for ground continuity and resistance