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The WMPV-1S1 is an IP65 metal solar string combiner box designed for single-string solar PV installations requiring enhanced enclosure durability. Rated for 1000V DC systems, it provides safe string termination, surge protection, and local DC isolation in one factory-configured unit.
Supplied complete with a DC rotary isolator and Type 2 DC surge protection device (SPD), this combiner box protects inverter electronics from transient overvoltage while allowing safe disconnection for maintenance. The metal enclosure provides improved mechanical protection, making it suitable for exposed or commercial environments.
Installer Tip: Choose the metal enclosure version for farm buildings, plant rooms, car ports, or exposed outdoor installations where additional impact resistance is preferred.
Key Features
- 1 String / 1 Output configuration – ideal for single MPPT systems
- 1000V DC rated – compatible with modern PV arrays
- Type 2 DC SPD – protects inverter from surge damage
- Integrated DC rotary isolator – safe local isolation
- IP65 metal enclosure – enhanced mechanical protection
- Pre-configured internal wiring for faster installation
- Designed for residential and commercial solar PV systems
Compare Solar String Combiner Boxes
| Model | Strings | Enclosure | Best For |
|---|---|---|---|
| WPPV-1S1 | 1 String / 1 Output | IP65 Plastic | Standard domestic PV systems |
| WPPV-2S2 | 2 Strings / 2 Output | IP65 Plastic | Dual MPPT domestic systems |
| WMPV-1S1 (This Product) | 1 String / 1 Output | IP65 Metal | Exposed or higher durability installs |
| WMPV-2S2 | 2 Strings / 2 Output | IP65 Metal | Commercial dual-string systems |
