Description

SUNWAYS STH-5KTL-LS – (5kW) On-Grid Hybrid Solar Inverter – NET METERING Approved

The STH-5KTL-LS is a 5kW single-phase, low-voltage (LV) hybrid inverter designed for residential and small commercial solar-plus-storage systems. It features dual MPPT trackers to optimize energy harvest from different roof orientations and supports fast-charging low-voltage batteries.

Technical Specifications

1. PV Input (DC)

• Max. DC Input Voltage: $600\text{ V}$

• Rated DC Input Voltage: $360\text{ V}$

• MPPT Voltage Range: $80\text{V} – 550\text{V}$

• Number of MPP Trackers / DC Inputs: 2 MPPTs with 1 DC input per MPPT ($1/1$)

• Max. Input Current: $20\text{A} / 20\text{A}$

• Max. Short-circuit Current: $25\text{A} / 25\text{A}$

2. Battery Compatibility & Performance

• Battery Type: Low-voltage Lithium battery (with BMS) or Lead-Acid

• Battery Communication Mode: CAN

• Battery Voltage Range: $40\text{V} – 60\text{V}$

• Max. Charge / Discharge Current: $120\text{A} / 120\text{A}$ (enabling rapid charge and discharge cycles)

3. AC Output (Grid)

• Rated Output / Apparent Power: $5,000\text{ W} / 5,000\text{ VA}$

• Max. Output / Apparent Power: $5,500\text{ W} / 5,500\text{ VA}$

• Rated Output Voltage: L/N/PE, $220\text{V} / 230\text{V}$

• Rated AC Frequency: $50 / 60\text{ Hz}$

• Rated / Max. Output Current: $21.7\text{A} / 25\text{A}$

• Max. Output Fault Current / Overcurrent Protection: $80\text{A} / 80\text{A}$

• Power Factor: $0.8$ leading to $0.8$ lagging

4. Back-up / Off-Grid Output

• Rated / Max. Back-up Output Power: $5,000\text{ W} / 5,500\text{ W}$ ($5,000\text{ VA} / 5,500\text{ VA}$ apparent power)

• Back-up Rated / Max. Current: $21.7\text{A} / 25\text{A}$

• UPS Switching Time: $<10\text{ ms}$ (seamless transition during grid outages)

• Peak Output Apparent Power: $10,000\text{ VA}$ for $10\text{s}$ to handle heavy inductive loads

• Motor Load Capacity: Up to $4\text{HP}$

5. Efficiency

• Max. Efficiency: $97.6\%$

• European Efficiency: $97.0\%$

• MPPT Efficiency: $99.9\%$

6. General & Environmental Data

• Dimensions: $488 \times 374 \times 205\text{ mm}$

• Weight: $20 / 21\text{ kg}$ (depending on configuration)

• Protection Degree: IP66 (weatherproof for outdoor installations)

• Topology: Transformerless

• Operating Temperature Range: $-25^\circ\text{C}$ to $60^\circ\text{C}$

• Cooling Method: Natural Convection / Fan

• Communication: WiFi / Bluetooth and RS485

• Advanced Features: Supports diesel generators, EV charging piles, and parallel operation of up to 3 units for larger off-grid configurations.