2P 275V AC 40kA Surge Protection Device – Type 2 AC SPD for Solar Inverters & Distribution Panels
This 2-pole 275V AC Surge Protector Device (SPD) provides reliable protection against transient overvoltages caused by lightning strikes and grid switching operations on the AC side of photovoltaic systems. With a maximum discharge current (Imax) of 40kA and a nominal discharge current (In) of 20kA, this Type 2 surge arrester effectively limits voltage spikes to protect inverters, AC distribution panels, and grid-tied equipment. The built-in thermal disconnector ensures safe failure mode, while the visual status window provides instant indication of protection status. Suitable for single-phase AC systems (L+N+PE).
AC SPD Technical Specifications
| Item | Rated Voltage | Imax |
| AC SPD 2P | 275/385VAC | 40KA |
| AC SPD 4P | 385/420VAC | 40KA |
AC SPD Key Features
40kA Max Discharge Current (Imax) – Handles severe surge events safely
20kA Nominal Discharge Current (In) – Reliable performance in standard surge conditions
275V AC Rated Voltage (Uc) – Standard voltage for single-phase PV inverter AC output
Type 2 / Class II Protection – IEC/EN 61643-31 compliant for PV applications
Visual Status Indicator – Green/Red window for quick health check
2-Pole Design – L+N+PE protection for single-phase AC systems
Internal Configuration
