Surge Protector SPD
Surge Protector SPD Guide for Low Voltage System Protection
Surge protector SPD devices are used to protect electrical systems and sensitive equipment from transient overvoltage caused by lightning or switching events. Correct SPD selection improves system reliability and helps reduce equipment damage risk.
Selection Tips
- Check system voltage and SPD class before model selection.
- Confirm installation position and grounding coordination in the panel.
- Choose products suitable for residential, commercial or industrial protection use.
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Frequently Asked Questions
Q: What is the purpose of an SPD in a distribution system?A: An SPD helps limit transient overvoltage and protect connected equipment from surge-related damage.
Q: Where should an SPD be installed?A: It is usually installed in the distribution board or at key protection points where surge protection is required.