Keeping your grid reliable has never been more important. With the power usage patterns shifting dramatically in these challenging times, power operators need to do make everything they can to avoid outages.
The VPM385-40 (1U) is a slim-profile Type 2 AC SPD designed for space-saving power distribution. With a Uc of 385V AC, it handles a nominal In of 20 kA and an Imax of 40 kA (8/20 μs). Featuring Up ≤ 1.8 kV, it is fully EN/IEC 61643-11 compliant. Its 1U compact design makes it the ideal choice for high-density electrical panels and modular industrial equipment.
The VPD1500-40 is a specialized Type 1+2 PV SPD for high-voltage solar infrastructures. With a Uc of 1500V DC, it manages an Iimp of 6.25 kA (10/350 μs) and an Imax of 40 kA (8/20 μs). Featuring Up ≤ 5.0 kV, it is fully EN/IEC 61643-11 compliant. Designed to safeguard 1500V DC systems against both direct lightning impacts and induced surges.
The VPH888-12.5 is a high-voltage Type 1+2 AC SPD designed for comprehensive lightning and surge protection. With a Uc of 880V AC, it handles an Iimp of 12.5 kA (10/350 μs) and an Imax of 80 kA (8/20 μs). Featuring Up ≤ 3.4 kV, it is fully EN/IEC 61643-11 compliant. Ideal for demanding PV AC systems and high-voltage industrial infrastructure.
The VPM1000-50 is a premier Type 1+2 AC SPD for ultra-high voltage protection. Supporting Uc up to 1000V AC, it handles an Iimp of 12.5 kA (10/350 μs) and an Imax of 50 kA (8/20 μs). Featuring Up ≤ 7.0 kV, it is fully EN/IEC 61643-11 compliant. Engineered for maximum safety in large-scale PV AC-side and high-voltage industrial power systems.
The VPD750-40 is a professional Type 2 PV SPD optimized for solar energy protection. Featuring a Uc of 1000V DC, it handles a nominal discharge current (In) of 20 kA and a max capacity (Imax) of 40 kA (8/20 μs). With Up ≤ 3.2 kV, it ensures the safety of inverters and solar arrays. Fully EN/IEC 61643-11 compliant and designed for long-term outdoor reliability.
The VPD1000-40 is a high-voltage Type 2 PV SPD engineered for advanced solar protection. With an extended Uc of 1300V DC, it handles an In of 20 kA and an Imax of 40 kA (8/20 μs). Featuring Up ≤ 4.0 kV, it provides essential safety for high-string voltage inverters. Fully EN/IEC 61643-11 compliant and optimized for large-scale commercial solar farm reliability.
The VPD1500-40 is an ultra-high voltage Type 2 PV SPD built for the next generation of solar infrastructure. Supporting a Uc of 1800V DC, it handles an In of 20 kA and Imax of 40 kA (8/20 μs). Featuring Up ≤ 5.5 kV, it provides critical safety for 1500V DC systems. Fully EN/IEC 61643-11 compliant and ideal for large-scale utility solar plants.
The VPD2000-40 is a specialized Type 2 PV SPD designed for extreme-voltage DC applications. Supporting an industry-leading Uc of 2450V DC, it handles an In of 20 kA and an Imax of 40 kA (8/20 μs). Featuring Up ≤ 8.5 kV, it is fully EN/IEC 61643-11 compliant. Ideal for future-ready, high-voltage solar arrays and specialized industrial DC power distribution systems.
The VPD1000-40 is a high-voltage Type 1+2 PV SPD providing dual-layered lightning and surge defense. Featuring a Uc of 1300V DC, it handles an Iimp of 6.25 kA (10/350 μs) and an Imax of 40 kA (8/20 μs). With Up ≤ 4.0 kV, it is fully EN/IEC 61643-11 compliant. Optimized for high-string voltage solar systems requiring protection against direct and indirect lightning strikes.
Q: Which VOZWEI VPH, VPM and VPD SPD series are available?
A: VOZWEI offers AC, DC and signal SPDs under EN/IEC 61643-11. VPH is Type 1 (VPH385-30: Iimp 30kA 10/350μs, Up ≤ 1.9kV); VPM spans AC Type 2 and 1+2; VPD covers DC, from general DC such as VPD48-40 to PV DC up to Uc 2450V.
Q: What is the VOZWEI VPM385-40 (1U) rack-mountable SPD?
A: VOZWEI VPM385-40 (1U) is a Type 2 AC SPD for Uc 385V AC, built on a slim 1U chassis for rack mounting and rated In 20kA, Imax 40kA. The pluggable anti-detachment modules, fault indication and remote signaling suit high-density panels; the -1UN version adds network management.
Q: How do VOZWEI VPH Type 1 and VPM Type 1+2 differ?
A: VOZWEI VPH Type 1 SPDs like VPH385-30 are 10/350μs-tested for direct lightning at the main inlet. VOZWEI VPM Type 1+2 units (for example VPM1000-50 (T1+T2)) combine Type 1 and Type 2 in one device, with Iimp 12.5kA and Imax 50kA.
Q: What are the main differences between VOZWEI VPM and VPD families?
A: The VOZWEI VPM family is built for AC, covering Type 2 units from Uc 275V AC to 1000V AC and Type 1+2. The VOZWEI VPD family is the DC SPD line: general DC units such as VPD48-40, plus PV DC Type 2 and 1+2 from Uc 1000V to 2450V DC.
Q: Which VOZWEI VPD suits PV DC side applications?
A: Select a VOZWEI VPD by string voltage and protection type. For Type 2 only: VPD750-40 (Uc 1000V DC, 2P), VPD1000-40 (Uc 1300V DC), VPD1500-40 (Uc 1800V DC) or VPD2000-40 (Uc 2450V DC). For Type 1+2: VPD1000-40 or VPD1500-40 (T1+T2) with Iimp 6.25kA.
Q: What do In, Imax, Iimp and Up mean on VOZWEI VPM385-40?
A: On the VOZWEI VPM385-40, In is nominal 8/20μs discharge current handled repeatedly, Imax is maximum 8/20μs discharge current survived once, and Up is voltage protection level. Iimp is 10/350μs lightning impulse for Type 1/1+2 testing; VPM385-40 is In 20kA, Imax 40kA, Up ≤ 1.8kV.
Q: Which VOZWEI VPX05K05X and VP-05 SPDs suit signal lines?
A: VOZWEI VPX05K05X covers signal (Uc DC6V) and PoE (Uc DC60V) with Up L/L ≤ 40V (C2 8/20μs) and ≤ 20V (C3 1kV/μs), L/PE ≤ 300V. VP-05 has Up < 100V (K2), L-L ≤ 30V, L-PE ≤ 600V (K4); VP-24 has Up < 150V.
Q: Is a VOZWEI VPM SPD a replacement for a VOZWEI MCB?
A: No. A VOZWEI VPM SPD limits transient overvoltage but does not carry or interrupt load current, so it cannot replace a VOZWEI MCB or MCCB. It is installed in parallel with the circuit and needs upstream overcurrent protection, in most cases a backup fuse.