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Perhaps it is tripping a ground fault interrupter (GFI) circuit protector in your home while the problem is not a dead short that would trip the circuit breaker at the stereo shop if it did not have GFI protection. In any case, I would not want something that is tripping breakers and raising safety concerns even if it "works."
This unit has a low voltage linear power supply for a solid state phono preamp/equalizer. It should not have a massive bank of capacitors that would draw enough current to trip any kind of breaker. I would not fool around with something that might be faulty--not just because of safety concerns, but, also because I would not want to fry other downstream components.
Thank you all for the helpful answers!
I have tried to switch back the breaker after the shut down, and I couldn`t. The circuit isn`t close to overload, tried with various devices.
PSU is for 220VAC nominal.
I am very sure the breaker is an AFCI. I am renting, so I can`t do much about.
I bought the unit online and it`s working in the stereo shop, so what to do now?
Breakers are designed for safety.
Remove everything from the circuit, and attempt to reset the breaker. If you do, add one device at a time. Inspect any cables for damage. If you have a bad cable or device, it will trip when you insert it again.
If after you unplug 100% of all devices you still can't reset the breaker it requires an electrician to diagnose and fix.