Used 2- Pole 30A Cutler Hammer QUICKLAG Cat No. QBHW2030 Bolt-On Circuit Breaker
The overall look is black, so it blends without clashing with surrounding breakers.
Allen-Bradley 1492-SP2C020 Supplementary Protector 2 Pole 2Amp Circuit Breaker
You’ll appreciate the supplementary protector when working with sensitive electronics, as it helps guard against sudden faults.