TOMZN TZG40-PV 1000V DC Surge Protective Device (20kA–40kA)
Protect your solar PV installations and low-voltage DC circuits against dangerous voltage spikes and lightning surges with the TOMZN TZG40-PV DC Surge Protective Device (SPD). Engineered for high reliability, this DIN rail-mounted arrester diverts excessive current safely to ground, keeping your solar inverters, batteries, and sensitive electronics safe.
Key Features & Highlights
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Solar PV Protection: Specially designed for DC solar power generation systems, solar combiner boxes, and inverter protection.
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Heavy-Duty Protection (20kA–40kA): Safely handles nominal discharge currents (In) of 20kA and maximum discharge currents (Imax) up to 40kA.
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Modular Plug-In Design: Easy maintenance—if the module is damaged by an extreme surge, it can be swapped out without rewiring the base.
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Visual Status Indicator: Green light signals normal operation; red indicates the protective module needs replacement.
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Standard 35mm DIN Rail Mount: Quick and hassle-free installation inside standard distribution boxes and solar combiner panels.
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Certified Quality: Fully CE certified and tested for long-lasting performance and safety compliance.
Technical Specifications
| Parameter |
Specification |
| Brand |
TOMZN |
| Model |
TZG40-PV |
| Device Type |
DC Surge Protective Device (SPD) / Low-Voltage Arrester |
| Max Continuous Operating Voltage (Uc) |
1000V DC |
| Nominal Discharge Current (In) |
20kA |
| Max Discharge Current (Imax) |
40kA |
| Poles |
2P / 3P (DC System Compatible) |
| Mounting Type |
Standard 35mm DIN Rail |
| Certification |
CE Certified |
| Origin |
Mainland China |


