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| Unit: | |
| Code: | 100-209 |
| Model: | SUN‐12K‐G05 |
| Product warranty (months): | 120 |
| Brand: | Deye |

Description
The Deye SUN-12K-G05 is a 12 kW three-phase grid-tied string inverter engineered for residential and commercial rooftop solar installations requiring direct PV feed-in without energy storage.Equipped with 2 independent MPPT trackers, it delivers conversion efficiency up to 98.3%.Designed with a wide MPPT voltage range (120V–1000V), built-in Type II DC/AC surge protection, and zero-export power management support, this unit provides dependable, low-maintenance daily generation.
Key Features & Benefits
Dual MPPT Tracking:Built with 2 MPP trackers to optimize power production across strings with different roof tilts or orientations.
High Efficiency Generation:Achieves up to 98.3% maximum efficiency (97.5% European efficiency) to minimize energy conversion losses.
Wide MPPT Operating Range:Operates across a wide voltage range (120V–1000V) with low start-up voltage for extended daily generation hours.
Integrated Type II Surge Protection: Built-in DC and AC Type II surge protective devices protect internal circuits against voltage transients and grid surges.
Zero Export & VSG Support: Supports power limiting and Virtual Synchronous Generator (VSG) modes when paired with external meters or CTs.
Compact & Silent Design:Uses a transformerless, lightweight enclosure with natural/smart cooling for quiet, reliable outdoor operation (IP65).
Technical Specifications
| Parameter | Specification |
| Rated AC Output Active Power | 12,000 W (Max. AC Apparent Power: 13,200 VA) |
| Max. DC Input Power | 15,600 W |
| Max. DC Input Voltage | 1100 V |
| MPPT Operating Voltage Range | 120 V – 1000 V |
| Max. DC Input Current | 13 A + 13 A (or up to 26 A + 26 A on LV variants) |
| No. of MPPTs / Strings per MPPT | 2 / 1+1 (or 2+2 depending on revision) |
| Max. Efficiency | 98.3% (Euro Efficiency: 97.5%) |
| Nominal AC Grid Voltage / Frequency | 230 V / 400 V (3L+N+PE) / 50 Hz / 60 Hz |
| Enclosure Protection Rating | IP65 |
| Dimensions (W x H x D) | ~283 × 463 × 178 mm |
| Weight | ~11.0 kg |
| Communication Interfaces | RS485 / RS232 / Wi-Fi / LAN |
| Phase |
Phase
3 |
| Power AC Out |
PowerAcOut
12000 |
| P |
Weight
14,5 |
| Internal article group |
Internal article group
deye_3ph_resi |