Matsushita Electric Works Lighting Distribution Board Main Circuit Breaker 60A Branch Circuits 12 Main Circuit ELB 3P60A Sensitivity Current 30mA with OC (Overcurrent) Branch Circuits 2P1E 20A x 10 2P2E 20A x 2 Operation with the test button is good after applying voltage to the main circuit breaker. Leakage detection indication is also good. Cleaning is complete. Tightening of ELB, MCB, and copper plate screws has been performed. The images are everything.