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DC Surge Protection Device (SPD) Type II | Solar PV Lightning Surge Protector
The DC SPD Type II is a reliable surge protection device designed to protect solar photovoltaic (PV) systems from transient overvoltage and lightning-induced surges. It safeguards solar panels, inverters, combiner boxes, and other DC equipment, ensuring safe, stable, and long-lasting system performance.
The DC Surge Protection Device (SPD) Type II is specifically engineered to provide effective protection against transient overvoltage and indirect lightning surges in photovoltaic (PV) solar power systems. Installed on the DC side of the system, it diverts surge currents safely to ground, preventing damage to critical equipment such as solar panels, inverters, combiner boxes, charge controllers, and battery storage systems.
Built with advanced Metal Oxide Varistor (MOV) technology, the DC SPD Type II offers fast response time, high discharge capacity, and dependable protection against electrical disturbances. Its compact DIN rail design allows quick and convenient installation inside combiner boxes and DC distribution panels.
The device features thermal disconnection protection and a visual status indicator for easy monitoring and maintenance. Designed to comply with international safety standards, it delivers long-term reliability even under harsh environmental conditions.
Ideal for residential, commercial, industrial, and utility-scale solar projects, the DC SPD Type II enhances system safety, minimizes downtime, and extends the lifespan of valuable solar equipment.
Key Features
- Type II Surge Protection for DC Systems
- Protection Against Lightning & Transient Overvoltage
- Fast Response Time
- High Surge Current Discharge Capacity
- Advanced MOV Protection Technology
- Thermal Disconnection Mechanism
- Visual Status Indicator
- DIN Rail Mounting
- Compact & Easy Installation
- Reliable Long-Term Performance
Applications
- Solar PV Systems
- DC Combiner Boxes
- Solar Inverters
- Charge Controllers
- Battery Energy Storage Systems (BESS)
- On-Grid Solar Systems
- Off-Grid Solar Systems
- Hybrid Solar Installations
- Commercial & Industrial Solar Projects
Typical Specifications
| Feature | Details |
| Product Type | DC Surge Protection Device (SPD) Type II |
| SPD Type | Type II |
| Rated Voltage (Uc) | 600V DC / 1000V DC / 1500V DC (Model Dependent) |
| Number of Poles | 2P / 3P |
| Response Time | ≤25 ns |
| Nominal Discharge Current (In) | 20kA |
| Maximum Discharge Current (Imax) | 40kA |
| Mounting Type | DIN Rail |
| Protection Level | IP20 (Panel Mounted) |
| Operating Temperature | -40°C to +85°C |
| Standards | IEC 61643-31 |
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