The 24V sweet spot for home backup.
Half the current of 12V means thinner cables, less heat and more efficient transfers — which is why 24V is the standard for serious home backup. The PHSD 24V models pair a 2500VA pure sine inverter with the same 600W MPPT front end and four charging strategies, in the familiar wall-mount chassis.
At equal power, 24V halves battery current versus 12V — cheaper cabling, cooler connectors, longer relay life.
Runs a full kitchen circuit or a workshop; 5-second surge at double rating starts compressors and pumps.
Four charging modes adapt to time-of-use tariffs: charge from solar first, grid first, or solar only.
Cooling scales with temperature and load — full speed only above 80°C — keeping noise and dust down while extending component life.
| Rated output power | 1500VA / 2500VA |
|---|---|
| Output | 220Vac ±5%, 50Hz, pure sine wave (SPWM) |
| Battery voltage | 24.0VDC (cold start 23.0Vdc) |
| Grid input | 220Vac, 50/60Hz, max 300Vac, sine wave (grid or generator) |
| Max PV power (MPPT) | 600W |
| MPPT voltage range | 20–80VDC (start-up 20Vdc, rated PV 60Vdc) |
| Max PV open-circuit voltage | 120VDC |
| MPPT efficiency | 99.9% |
| Charging modes | Solar only · Grid priority · Solar priority |
| Max AC charge current | 40A |
| Max solar charge current | 40A |
| Grid charging algorithm | 3-Step (bulk 29.2V/28.2V · float 27V) |
| Switchover time | <20ms (Appliances) |
| Overload protection | 2× rated power for 5 seconds |
| Output short-circuit protection | Short-circuit switch |
| Battery support | Lead-acid & lithium, AC/PV activation |
| Display | LED LCD screen + status / charge / fault indicators |
| Cooling | Temperature + power controlled smart fan (full speed >80°C) |
| Operating temperature / humidity | -10°C to 50°C / 5–93% non-condensing |
| Dimensions / weight | 267.4×99.2×324.2 mm, 5.6kg |
24V halves the current for the same power, so cables, fuses and connectors run cooler and cheaper. Above roughly 1500VA, 24V is the engineering standard — the PHSD2500EBL24 delivers 2500VA at just over 100A instead of 200A+.
Any 24V bank: two 12V batteries in series, or our 25.6V 312Ah LiFePO4 pack (24312Y-01). Charging follows a 3-step lead-acid or CC/CV lithium algorithm, with cold-start at 23V.
The 24V models cap at 600W MPPT. If your array is larger, step up to the PHSD3500/PHSC5500 with 4,000–5,000W PV input and a wide 120–450VDC window.
Hybrid Solar Inverter — PHSD1000EBL12 / PHSD1800EBL12
All-in-One ESS 48312N-01 · 15.97kWh