600V 3P DC Surge Protective Device — Direct Manufacturer for OEM/ODM, Wholesale & Bulk Orders
The 600V 3P DC surge protective device is engineered to meet the protection needs of low-to-medium voltage photovoltaic installations, industrial DC distribution systems, telecom power racks, and energy-storage applications requiring multi-line surge suppression. As a professional manufacturer, supplier, and factory, we produce this device with advanced MOV (Metal Oxide Varistor) technology, delivering stable and fast surge response for 600V DC circuits. Our factory supports OEM, ODM customization, wholesale supply, and bulk buy orders, ensuring flexible solutions for distributors, EPC contractors, and global solar brands.
This 3-pole configuration provides comprehensive surge protection for positive, negative, and monitoring or grounding lines typically found in more complex DC systems. It is ideal for small and medium commercial solar plants, DC combiner boxes, inverter DC input units, telecom base-station power cabinets, and modular energy-storage systems. Manufactured fully in accordance with IEC 61643-31:2018, this model meets international requirements for DC surge protective devices. It is also certified by CE et TUV, ensuring compliance with global safety and export standards.
The housing is built using high-performance PBT flame-retardant engineering plastic, known for its excellent electrical insulation, resistance to deformation, and long-lasting durability under harsh outdoor conditions. The material remains stable in high temperatures, humidity, and intense UV exposure, making the device highly suitable for solar and industrial environments. Internally, the optimized MOV array provides low residual voltage, reliable surge absorption, and long service life even under repetitive lightning exposure or switching transients.
To enhance operational safety, the device includes a built-in thermal disconnection mechanism that automatically isolates degraded MOV components in the event of overstress. This prevents overheating and ensures that the protective module operates safely throughout its lifecycle. A front-facing status indicator window provides instant visual confirmation of operational status, simplifying inspection and maintenance routines.
Designed for simple and secure 35mm DIN-rail installation, this SPD integrates smoothly into DC distribution cabinets, PV combiner boxes, energy-storage modules, industrial controllers, and telecom power systems. Its compact footprint and standardized dimensions allow easy replacement, upgrades, and system expansion.
As a leading OEM/ODM SPD manufacturer, we offer comprehensive customization options such as logo printing, label modification, color changes, customized voltage ratings, specialized packaging, and technical documentation support. With automated production lines and strict quality-control testing, we ensure consistent performance, stable clamping voltage, and strong surge endurance across every batch manufactured.
For distributors, contractors, and system integrators seeking a reliable and cost-effective 600V 3-pole DC surge protector with certified global compliance, strong durability, and manufacturer-direct wholesale pricing, this model offers a dependable and efficient solution for large-scale and long-term projects.
Applicable scenarios / Application industries
The 600V 3P DC surge protective device is widely used in rooftop PV systems, small commercial solar installations, telecom DC cabinets, industrial DC control panels, and energy-storage infrastructure. It plays an essential role in protecting expensive equipment from damage caused by lightning surges, switching disturbances, and unpredictable DC overvoltage events. This not only extends the service life of the entire system but also reduces downtime and long-term maintenance costs.
