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4P DC Surge Protector 1000V/1500V 40kA - Dual-Input PV SPD for Dual MPPT Inverters & Energy Storage
The SPD-DC-4P-White is a 4-pole high-voltage DC surge protection device designed for photovoltaic systems with dual DC inputs, supporting both 1000VDC and 1500VDC. Unlike single-input DC SPDs, it provides two completely independent protection circuits 鈥?DC1 (DC1+/PE and DC1-/PE) and DC2 (DC2+/PE and DC2-/PE) 鈥?allowing a single unit to simultaneously protect both input channels of a dual MPPT inverter or two separate PV arrays in a combiner box. Maximum discharge current is 40kA with a nominal of 20kA, and the voltage protection level is 鈮?.0kV per channel. The high-energy metal oxide varistor (MOV) core responds in under 25 nanoseconds. The modular hot-swappable design allows individual pole modules to be replaced without rewiring. The white flame-retardant PC housing (UL94 V-0) mounts on a standard 35mm DIN rail and is built for installation in DC distribution cabinets and at inverter DC inputs in solar power and energy storage systems.
Key Features
- 4-pole dual-input protection: two independent DC circuits in one module
- Protects DC1 (DC1+/PE, DC1-/PE) and DC2 (DC2+/PE, DC2-/PE) simultaneously
- High voltage: supports 1000VDC and 1500VDC PV systems
- 40kA max discharge current (Imax), 20kA nominal discharge current (In)
- Voltage protection level 鈮?.0kV per channel
- <25ns ultra-fast response 鈥?high-energy MOV core for instantaneous clamping
- Ideal for dual MPPT inverters, PV combiner boxes and energy storage systems
- Modular hot-swappable design, white flame-retardant PC housing, 35mm DIN rail
Samples available · OEM pricing on request · Ships worldwide
Technical Specifications
| Poles | 4P |
| Max. Continuous Operating Voltage (Uc) | 1000VDC / 1500VDC |
| Nominal Discharge Current (In) | 20kA |
| Max. Discharge Current (Imax) | 40kA |
| Voltage Protection Level (Up) | 鈮?.0kV |
| Application System | Photovoltaic DC System (Dual Input) |
| Protection Mode | DC1+/PE, DC1-/PE, DC2+/PE, DC2-/PE (Dual Independent) |
| Wiring | 4 Terminals: DC1+, DC1-, DC2+, DC2- |
| Core Component | High-energy Metal Oxide Varistor (MOV) |
| Response Time | <25ns |
| Housing Material | Flame-retardant PC (UL94 V-0), White |
| Mounting | 35mm DIN Rail |
| Design | Modular, Hot-swappable |
| Applications | Dual MPPT Inverters, PV Combiner Boxes, Energy Storage Systems |
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