Built to Protect. Trusted to Last. Explore LEEYEE surge protective devices engineered for reliable protection in AC, DC, solar PV, industrial, and OEM electrical systems.
Surge Protective Device Selection Guide
Surge Protective Device Selection Guide SPD Selection Guide
Built to Protect. Trusted to Last. Choose AC, DC, Signal, Type 1, Type 2, or solar PV SPD categories based on your system voltage, installation position, and protection level.
Quick Selection
Start From The System You Need To Protect
Use these three primary paths before browsing the full product category list.
AC Surge Protective Device
For distribution boards, building power systems, industrial panels, and AC electrical equipment.
View AC SPD →DC Surge Protective Device
For solar PV strings, combiner boxes, inverter inputs, battery systems, and DC power circuits.
View DC SPD →Signal Surge Protective Device
For RS485, Ethernet, CCTV, monitoring, telecom, communication, and control signal lines.
View Signal SPD →Choose By SPD Type
Select By Protection Level
Match the SPD type with lightning exposure, installation position, and equipment protection requirements.
Type 1 SPD
For high-exposure sites requiring lightning current discharge capability.
Type 1+2 SPD
For combined lightning current and surge protection.
Type 2 SPD
For induced surges and switching transients.
Type 2+3 SPD
For distribution and equipment-level coordination.
Type 3 SPD
For terminal equipment and sensitive loads.
Choose By DC Voltage
Find The Right DC SPD For Solar PV And DC Systems
DC surge protection should match system voltage, PV application, cabinet layout, and expected surge exposure.