13000W 48V Split Phase Solar Inverter SPH6548P

Solar Panel With Inverter — 13KW Split Phase 48V Dual MPPT WiFi, SPH6548P

The SPH6548P is a 6,500W split-phase solar inverter with integrated dual MPPT solar charging — two units in parallel deliver 13,000W of combined 120/240VAC output — making it a complete solar panel with inverter system for homes and small businesses requiring genuine split-phase 240V capability alongside high-efficiency solar charging from two independent PV string inputs. Each MPPT tracker delivers 99.9% tracking efficiency across a 150–450VDC operating range, with a 550VDC maximum open-circuit voltage that accommodates high-voltage panel strings including 450W and 500W monocrystalline formats. Time-slot charging and discharging, energy saving mode, and WiFi monitoring are all included.

Table of Contents

1. Product Specifications
2. Dual MPPT Architecture
3. Split-Phase and Single-Phase Output
4. Charging Modes and Time-Slot Management
5. Solar Power Inverter Home Applications
6. Communication and Monitoring
7. Frequently Asked Questions

Product Specifications

Dual MPPT Architecture

The dual MPPT configuration of the SPH6548P accepts two independent PV string inputs — the primary tracker rated at 25,000W and the secondary at 5,000W — with separate maximum open-circuit voltages of 550VDC on each input. This asymmetric MPPT design reflects a practical installation reality: a primary array covering the majority of the system’s generation capacity, supplemented by a smaller secondary array on a different roof orientation or tilt angle.

The solar panel with inverter dual-tracker architecture eliminates the need for an external DC combiner for most two-orientation roof installations. Each tracker independently optimises its string’s operating point — the 99.9% tracking efficiency applying to both inputs simultaneously regardless of the irradiance difference between the two strings. This is a measurable daily energy yield advantage over single-tracker alternatives that average the operating point across mismatched strings.

Split-Phase and Single-Phase Output

The SPH6548P delivers pure sine wave output in both 120V single-phase and 120V/240V split-phase configurations. The split-phase output produces the two-leg 120V arrangement required by standard North American 240V residential panels — enabling direct connection to main distribution panels for whole-house load coverage including 240V appliances that single-phase systems cannot power natively.

The offgrid inverter split-phase capability is particularly relevant for installations with electric water heaters, well pumps rated at 240V, and HVAC compressors — load categories that account for the majority of residential peak consumption and that single-phase 120V-only systems cannot serve without expensive external phase conversion.

Charging Modes and Time-Slot Management

Two charging modes are available — hybrid charging draws from both solar and grid/generator sources simultaneously to meet load and charging demand, while solar-only charging restricts input exclusively to PV generation for installations where grid avoidance is a priority.

The time-slot charging and discharging function allows operators to programme specific periods for battery charging and load discharge based on local utility time-of-use tariffs. Charging during low-rate valley periods and discharging during high-rate peak periods reduces electricity cost for grid-connected installations — a function typically reserved for more expensive energy management systems now built into the inverter for sale base configuration of the SPH6548P.

The energy saving mode reduces no-load consumption by entering a low-power standby state when loads drop below a configurable threshold — recovering to full output within the 10ms transfer window when load demand increases.

Solar Power Inverter Home Applications

As a solar power inverter home system, two SPH6548P units in parallel address the complete range of residential energy management scenarios:

• Whole-House 240V Coverage: Split-phase output powers all standard residential 120V and 240V loads from a single inverter platform without external phase conversion.
• Dual-Orientation Roof Arrays: Independent MPPT trackers manage east/west or north/south panel strings separately, eliminating mutual performance degradation between differently oriented strings.
• Time-Of-Use Bill Reduction: Programmable time-slot charging and discharging reduces electricity cost for homeowners on time-of-use tariff structures.
• Off-Grid Primary Power: Battery, solar, and generator integration provides continuous off-grid power with automatic source priority management.

Browse our full Solar Panel With Inverter Systems, Split-Phase Off-Grid Inverters, and Solar Power Inverters collections for additional options.

Frequently Asked Questions

Q: What is the maximum PV input voltage for the SPH6548P? Each MPPT tracker on the SPH6548P accepts a maximum open-circuit PV voltage of 550VDC. The operating voltage range is 150–450VDC on both channels. The primary MPPT handles up to 25,000W of PV input and the secondary handles up to 5,000W.

Q: How does the dual MPPT benefit rooftop installations? Independent MPPT trackers allow two separate PV string orientations — such as east-facing and west-facing roof sections — to be managed at their individual optimal operating points. This prevents the performance of the better-oriented string from being dragged down by the lower-performing string, as happens with single-tracker systems connected to mismatched strings.

Q: What battery chemistries are supported? The SPH6548P supports lithium-ion batteries with BMS communication, lead-acid batteries, and user-defined battery profiles for custom chemistries. Rated battery voltage is 48VDC with an operating range of 40–60VDC. Maximum hybrid charging current is 140A.

Q: How does the time-slot charging function work? Time-slot charging allows the user to configure specific time windows for charging and discharging based on local utility tariff schedules. The system charges the battery during low-tariff periods and exports or uses battery power during high-tariff periods — reducing net electricity cost without external energy management hardware.

Q: What WiFi monitoring capability is included? WiFi monitoring is available through an optional external WiFi module connecting to the RS485/CAN communication bus. Once connected, the system transmits real-time performance data — including PV generation, battery state of charge, load consumption, and grid import/export — to the SunGoldPower cloud monitoring platform accessible via web browser or mobile app.