electronic components as electromagnetic relays or glass electric fuse on green pcb

relay fuse electronic component circuit board closeup electromechanical switch pcb contact copper wire electric electrical engineering electricity green repair industry technology ewaste disposal mechanical coil iron armature core solenoid yoke electromagnetic magnetic field energy automatic control current cut overcurrent protection glass tube connector metal printed spare device equipment capacitor polyswitch electrotechnics electrotechnology electromechanics service colored blur background winding power automation limiter fusible transparent network technical industrial supply recycling black blue colorful