Surge Protection Devices (SPDs) are essential electrical components designed to protect electrical systems, appliances, and sensitive equipment from voltage spikes and transient surges caused by lightning strikes, power fluctuations, or switching operations. They prevent damage by safely diverting excess voltage to the ground.
Power surges can cause severe damage to electrical infrastructure, leading to:
✅ Equipment Failure – Sensitive electronics and industrial machines can be damaged.
✅ Data Loss & Corruption – IT systems and data centers are vulnerable to power surges.
✅ Fire Hazards – Uncontrolled voltage spikes can overheat circuits, causing electrical fires.
✅ Expensive Repairs & Downtime – Businesses face costly downtime due to damaged systems.
Installing SPDs ensures reliable power protection, extending the lifespan of electrical systems and reducing maintenance costs.
SPDs are classified based on their application and level of protection:
🔹 Installed at the main distribution panel.
🔹 Protects against direct lightning strikes and high-energy surges.
🔹 Typically used in industrial plants, commercial buildings, and power stations.
🔹 Installed at sub-distribution boards.
🔹 Protects against transient overvoltages from switching operations and indirect lightning.
🔹 Ideal for offices, homes, and small commercial spaces.
🔹 Installed close to sensitive equipment.
🔹 Provides localized protection for computers, medical devices, and home appliances.
🔹 Works in combination with Type 1 and Type 2 SPDs for layered defense.
SPDs function by redirecting excess voltage away from the electrical system:
To ensure full protection, SPDs should be installed at:
✔ Main Distribution Boards (MDBs) – For primary surge protection.
✔ Sub Distribution Boards (SDBs) – For facility-wide voltage regulation.
✔ Final Distribution Boards (FDBs) – To safeguard end-user circuits.
✔ Critical Equipment Points – Protecting IT systems, data centers, and industrial machinery.
✅ Fast Response Time – Activates in microseconds to prevent damage.
✅ High Surge Capacity – Handles high-voltage spikes effectively.
✅ Multi-Layer Protection – Works in combination with circuit breakers and grounding systems.
✅ Long-Term Cost Savings – Reduces equipment failure and maintenance costs.
✅ Compliance with Safety Standards – Meets IEC, UL, and other international regulations.
When selecting an SPD, consider:
🔹 Voltage Rating – Ensuring compatibility with your electrical system.
🔹 Surge Current Capacity (kA Rating) – Higher ratings offer stronger protection.
🔹 Installation Location – Choose the correct SPD type for MDBs, SDBs, or equipment-level protection.
🔹 Response Time – Faster response times ensure better protection.
At Electric Panel Store, we offer premium quality SPDs designed for industrial, commercial, and residential applications. Our solutions ensure unmatched safety, efficiency, and compliance with international electrical standards.
