Deye SUN-10K-SG04LP3-EU

Three-Phase Hybrid Inverter SUN-10K-SG04LP3-EU by Deye

High-efficiency three‑phase hybrid inverter designed for PV systems with scalable energy storage, capable of on‑grid and off‑grid operation, diesel generator integration, and retrofit compatibility with existing solar setups.

Applications and use cases

This compact three‑phase inverter is built for residential, commercial, and small industrial PV installations that require flexible backup power and energy storage. It supports AC coupling to retrofit existing solar systems, allows parallel operation of multiple units, and accommodates parallel battery banks for expandable storage. Its design makes it suitable for projects that blend photovoltaic generation with battery backup, generator input, and diverse grid configurations.

• 100% unbalanced output across all phases with per‑phase output up to 50% of the rated power for flexible load balancing
• AC coupling to retrofit and upgrade existing solar installations
• Parallel operation with up to 10 units for scalable on‑grid or off‑grid configurations
• Support for multiple batteries in parallel to grow storage capacity
• Ability to store energy from a diesel generator for reliable backup power
• 48V battery architecture with transformer isolation for safe integration
• Six discrete battery charging/discharging periods for optimized energy scheduling

Key electrical and performance parameters

Designed to deliver reliable three‑phase power with built‑in energy storage and source flexibility. It combines a robust AC output with versatile DC input and battery management capabilities to suit modern PV systems requiring both grid‑tied and standalone operation.

• Nominal AC power: 10 kW with maximum AC power around 11 kW for brief high‑demand periods
• DC inputs: up to 6 channels, enabling flexible battery and DC source connections
• Maximum DC power input: up to 13 kW; Maximum DC voltage: 800 V; Maximum DC current: 51 A
• MPPT channels: 2, with 2 strings per single MPPT for efficient PV harvesting
• Power rating and topology: three‑phase inverter designed for commercial and multi‑family applications
• Nominal AC voltage options: 220/380 V or 230/400 V; Nominal AC current: 15.2/14.5 A
• Maximum AC current: 16.7/15.9 A; Frequency: 50/60 Hz; Power Factor: 0.8 leading to 0.8 lagging
• Efficiency: Maximum efficiency 97.6%; Euro efficiency about 97%
• Protection and reliability: IP65 enclosure with transformer isolation design; operating temperature range −40 to 60 °C with derating beyond 45 °C
• Physical footprint: Height 702 mm, Width 422 mm, Depth 281 mm; Weight 33.6 kg
• Battery charging/discharging scheduling: 6 time periods to optimize storage and usage

Battery and backup capabilities

The SUN‑10K‑SG04LP3‑EU is built to integrate with battery storage and provide reliable backup when grid conditions change. It supports connecting multiple batteries in parallel, enabling scalable energy storage, and it is designed to work with a 48V low‑voltage battery system in conjunction with transformer isolation for safe energy management. The inclusion of six charging/discharging periods allows precise control over when energy is stored or released, optimizing self‑consumption and backup readiness. Diesel generator energy capture and use are supported, expanding reliability for off‑grid or grid‑interruptible sites.

• Parallel battery banks for scalable storage (48V system)
• Six discrete charging/discharging periods for scheduling flexibility
• Transformer isolation design improves safety when integrating multiple energy sources
• diesel generator energy storage support to augment backup capabilities

Operating conditions and reliability

Engineered for demanding environments, the inverter combines rugged enclosure protection with a wide operating temperature range to maintain performance in hot or dusty locations. Its IP65 rating protects against dust and water exposure, while the transformer isolation design enhances safety and longevity when multiple energy sources are connected. The unit is suited for both indoor and outdoor installations where reliable, continuous operation is required.

• Protection Class: IP65 for dust and water ingress resistance
• Operating temperature range: −40 to 60 °C with derating beyond 45 °C
• Transformer isolation design for safer integration of PV, storage, and genset sources
• Three‑phase architecture provides balanced or deliberately unbalanced loading support for real‑world networks

Mechanical design and installation

The SUN‑10K‑SG04LP3‑EU presents a compact, cabinet‑style housing with clear dimensions and weight suitable for wall or cabinet mounting in mixed commercial and residential settings. Its 702 mm height, 422 mm width, 281 mm depth and 33.6 kg weight offer a compact footprint for installation in utility rooms, garages, or outfitted equipment spaces. The 48V battery compatibility and transformer‑isolated design simplify integration with existing energy storage and generation sources while maintaining a robust, durable build for long‑term operation.

• Dimensions: 702 mm (H) x 422 mm (W) x 281 mm (D); Weight: 33.6 kg
• Three‑phase enclosure with transformer isolation for safer multi‑source integration
• Suitability for wall or cabinet mounting in residential, commercial, and light industrial settings
• Designed to operate with 48V battery storage and parallel battery configurations