Unusual wiring on outdoor spa - is it safe and legal?

I have an outdoor spa that seems to be wired differently from the recommended method I've seen on many web pages. I think it's safe and legal as is, but I'd like to make sure...

The main panel has a GFCI. (I believe it's a 60 Amp. I will verify that the current rating is high enough for the spa, but for the sake of this question I'll assume that the GFCI in the main panel is the correct one.)

Wiring goes through the house, within the walls, to a sub panel on the back corner of the house (Here again, this isn't something I'm concerned about. I'll verify that the type and gauge of wire is OK, but for the sake of this question I'll assume it is).

The sub panel is in sight of the spa but more than 5' away. It has a blade type disconnect in it and two 60 Amp fuses, one in each hot leg.

All the references that I've found suggest that the main should have a standard breaker in it, and the sub panel should have a GFCI or a specially designed spa disconnect. Am I OK with the GFCI in the main panel, and a fused blade type disconnect in the sub?

 

Welcome to the forums!

While it's unusual, it sounds like it should be code-compliant. How is the grounding made up?

 

The important part is that GFI protection is provided somewhere in the circuit. It can be in the service panel or closer to the tub.

 

Is the disconnect a NEMA 1 or NEMA 3R (for inside use or raintight for outdoor use)?

 

Thanks for the replies. I'll have to check out the details tomorrow in the daylight, but going from memory I'm pretty sure it's a NEMA 3R disconnect. I think the grounding is provided by a ground wire from the ground bus in the main to the ground bus in the sub, then a ground wire from the sub to the spa.