Sigenergy M1 PV Inverter | 50–125kW Three Phase Commercial String Solar Inverter All Variants

The Sigen PV M1 is Sigenergy's commercial and industrial (C&I) three-phase string inverter for pure solar generation without battery storage. Available in six power ratings from 50 kW to 125 kW, it is engineered for rooftop and ground-mount commercial arrays where battery storage is not part of the initial scope but may be added later — in which case the M1-HYA hybrid variant would be specified instead. The M1 series features industry-leading arc-fault circuit interruption (AFCI) detection, an instant PV reverse-connection alert at commissioning, multiple units in parallel without a data logger, and IP66 weather protection. Lightweight construction reduces installation costs on rooftop applications. All models share the same physical platform.

• Pure PV string inverter — no battery interface, simpler commissioning for generation-only projects
• Industry-leading AFCI (Arc Fault Circuit Interruption) — detects DC arcing for superior fire prevention
• Instant PV reverse connection alert — catches wiring errors before energising the string
• Multiple units in parallel — no external data logger required for multi-inverter sites
• Lightweight design — reduces crane and labour costs on commercial rooftop installations
• IP66 rated — suitable for exposed outdoor locations
• mySigen App and CommMod support — centralised monitoring across all units on site
• Upgrade path: swap to M1-HYA variant if battery storage is added later