Selecting the correct SPD depends on your application environment, system voltage, and the required level of protection. Use the following guide for an initial selection:
| Application Scenario | Recommended Series | Key Features & Rationale |
|---|---|---|
| Residential (Homes) | POSP 20 | Plug-on design for easy installation; 20kA nominal discharge current is sufficient to handle lightning strikes and utility switching transients in residential areas. |
| Commercial Buildings (Offices, Retail) | PSP B, 20PSP | Compact design saves panel space; UL Type 1 & 2 listed for installation in main or sub-distribution panels. |
| Industrial Facilities (Factories, Workshops) | PSP C, HPSP, PS | High surge capacity to handle the more severe surge environments found in industrial settings; optional metal enclosures for harsh physical conditions; HPSP and PS offer extreme energy handling. |
| Telecom & Data Centers | PSP C, HPSP, PS | Low Voltage Protection Ratings (VPR) to safeguard sensitive IT and communication equipment; optional Sine Wave Tracking to suppress high-frequency noise; high reliability for business-critical operations. |
| Renewable Energy (Solar, Wind) | PSP C, HPSP, PS | Suitable for high-exposure locations; can withstand large surge energies from direct or indirect lightning strikes, protecting expensive inverters and control systems. |
| Hospitals & Critical Infrastructure | PS Series | Features AFM technology for “anticipated failure monitoring,” providing early warning before complete failure, enabling planned maintenance and maximizing power continuity. |
| LED Lighting, Security Systems | PSP E, PSPF | Extremely compact, making them easy to install at the equipment level or in small sub-panels, providing precise point-of-use protection for specific sensitive devices. |