glass fuse on an electrical device

electronic power supply glassfuseholder 250milliampere 50ma amperage ampere background barrier capacitor cartridgefuses circuitboard circuitbreaker cylindrical device electric electriccurrent electrocution electronics energy engineer equipment fuse hazard highvoltage industrial industry install laboratory machine manufacturing newfuse opencircuit overcurrent overloaded protection replacement resistor safety service shuttingoff switch technician technology tool voltage voltageratings work worker