Reducing the space in my garage.

[Rich]

Can someone let me know if it is normal to blow a fuse in the circumstances?

I am in the middle of the PSU build, per the above thread, page 5. The basic circuit is complete, as shown in the following photographs. The initial test suggested the PSU was working - output 70vdc, so I start to solder a few of the parts together.

Once the basic circuit was complete I tested how the circuit performed with the 24dvc regulated power supply - just arrived, running across the SSR. The test was simply switching it on and then off. At which point, I blew the primary fuse, tripped the primary switch and blew the 13amp fuse in the socket. The primary fuse was a 5 amp spade fuse - as no motors are connected

I've not wired in the Relay 2 NC and I the eagle eyed will notice I've forgotten to wire in a secondary fuse.

Is there an obvious reason for this? Or do I need to provide more detail.