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The WPPV-2S2 is an IP65 plastic solar string combiner box designed for two-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 for dual MPPT or split-array solar setups.
Supplied complete with a DC rotary isolator and Type 2 DC surge protection device (SPD), this unit protects inverter electronics from transient overvoltage while enabling safe maintenance isolation. The robust IP65 enclosure allows outdoor mounting in residential and light commercial installations.
Installer Tip: Ideal for systems using dual MPPT inverters or split roof arrays. Keeps both strings neatly terminated while maintaining regulation-ready surge protection.
Key Features
- 2 Strings / 2 Output configuration – supports dual MPPT 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 | 1 String / 1 Output | IP65 Plastic | Single-string domestic PV systems |
| WPPV-2S2 (This Product) | 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 |
