Rayleigh RI-3P-15-4KW vs Sigenergy SigenStor-EC-SP SigenStor EC 4 SP
Both are inverters. Every figure below is a stored value from our catalogue — where a product does not publish one, the cell says so rather than guessing.
Specifications side by side
| Specification | Rayleigh RI-3P-15-4KW | Sigenergy SigenStor-EC-SP SigenStor EC 4 SP |
|---|---|---|
| AC output power | 4 kW | 4 kW |
| Type | PV | Hybrid |
| MPP trackers | 2 | 2 |
| Phase | 3P | 1P |
| Max PV input current | 20 A | 16 A |
| Max PV input voltage | 950 V | 600 V |
| Max PV array power | 6000 Wp | 8000 Wp |
Specification provenance: Unverified imported catalogue data on both sides — per-field datasheet citations are being added as documents are processed.
Physical & sourcing
| Width × Height × Depth | 400 × 480 × 165 mm | 400 × 480 × 165 mm |
| Weight | 18 kg | 18 kg |
| Country of origin | GB | CN |
| Stocked by Minute Solar | Yes | Yes |
Dimensions: Rayleigh RI-3P-15-4KW — estimated from comparable equipment — not a measurement; Sigenergy SigenStor-EC-SP SigenStor EC 4 SP — estimated from comparable equipment — not a measurement.
Which should you choose?
We deliberately do not pick a winner: the right choice depends on your roof, your existing equipment and your tariff, and we hold no evidence that would justify a general ranking. Put both through a full compatibility-checked design instead.
Design a system with either