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The WPPV-1S1 is an IP65 plastic solar string combiner box designed for single-string PV installations requiring integrated DC isolation and surge protection. Rated for 1000V DC systems, it provides safe string termination, overvoltage protection, and local isolation in one installer-ready enclosure.
Supplied complete with a DC rotary isolator and Type 2 DC surge protection device (SPD), this unit protects downstream inverter equipment from transient overvoltage while allowing safe maintenance isolation. The weatherproof IP65 enclosure makes it suitable for outdoor mounting in residential and light commercial solar installations.
Installer Tip: Ideal for single-string domestic PV systems where the inverter does not include integrated DC surge protection. Provides a tidy, regulation-ready solution at the array or inverter location.
Key Features
- 1 String / 1 Output configuration – suitable for single MPPT PV systems
- 1000V DC rated – compatible with modern solar arrays
- Type 2 DC SPD – protects inverter from transient overvoltage
- Integrated DC rotary isolator – safe local disconnection
- IP65 plastic enclosure – weatherproof for external installation
- Pre-configured internal wiring for faster installation
- Designed for residential and light commercial PV systems
Compare Solar String Combiner Boxes
| Model | Strings | Enclosure | Best For |
|---|---|---|---|
| WPPV-1S1 (This Product) | 1 String / 1 Output | IP65 Plastic | Single-string domestic PV systems |
| WPPV-2S2 | 2 Strings / 2 Output | IP65 Plastic | Dual MPPT or split-array systems |
| WMPV-1S1 | 1 String / 1 Output | IP65 Metal | Higher mechanical protection environments |
| WMPV-2S2 | 2 Strings / 2 Output | IP65 Metal | Commercial or exposed installs |
