Protective devices

Electrical Safety Devices

  1. Circuit Breakers

    • Automatically interrupts current flow when an overload or short circuit occurs.

  2. Fuses

    • Protects circuits by melting and breaking the circuit when excessive current flows.

  3. Residual Current Devices (RCDs) / Ground Fault Circuit Interrupters (GFCIs)

    • Detects leakage currents to prevent electric shock by cutting power.

  4. Ground Fault Circuit Interrupter (GFCI) 

    • Protects electrical equipment from voltage spikes by diverting excess voltage.

  5. Surge Protectors / Surge Suppressors

    • Protects electrical equipment from voltage spikes by diverting excess voltage.

  6. Arc Fault Circuit Interrupters (AFCIs)

    • Detects and interrupts arc faults that could lead to fires.

  7. Overload Relays🔐

    • Protects motors and circuits by interrupting current flow during overloads.

  8. Emergency Stop Buttons (E-Stops)🔐

    • Allows immediate power shutoff in emergencies.

  9. Isolators

    • A switch used to completely disconnect equipment or circuits from the power supply, ensuring safety during maintenance or emergencies by preventing any current flow.

  10. Remote Pendants🔐

    • Handheld control device used to operate machinery or equipment from a safe distance, allowing operators to control functions like start, stop, and speed without being directly at the machine.

  11. Safety Gate Switches🔐

    • A device used to monitor and secure access points (like gates or doors) to hazardous areas, ensuring that equipment or machinery stops operating when the gate is opened, protecting workers from harm.

  12. Lockout-Tagout (LOTO) Devices🔐

    • Secures energy sources in an off position to prevent accidental startup during maintenance.

  13. Thermal Protection Devices🔐

    • Includes thermistors and other temperature-sensitive devices to prevent overheating.

  14. Grounding and Bonding Systems🔐

    • Provides a safe path for electricity to prevent shock and equipment damage.

  15. Lightning Arresters / Surge Arresters🔐

    • Diverts excess voltage from lightning strikes away from sensitive equipment.