→ -| |- NC contact → -|/|- Coil (IEC) → small rectangle Motor overload (thermal) → two parallel arcs or rectangle with “OL” E-stop → NO contact inside a large circle Fuse → rectangle with line through (IEC) or simple rectangle (ANSI) Isolator (disconnect) – two breaks in a line with an ‘X’ between
Uses more "pictorial" shapes (e.g., a circle for a motor, a zigzag for a resistor). simbologia electrica industrial best