4 kW rated and 5 kVA apparent output at 220 V
Single-phase 220 V at 50/60 Hz as a pure sine wave, regulated to within 5%.

InvertersModel IVPM5048
A low-frequency 48 V off-grid inverter-charger: 4 kW of real output, 5 kVA apparent, one MPPT tracker sized for 6.6 kW of PV, and 36.3 kg net on the wall.
What sets the IVPM5048 apart from the other 2 models in the family: Backup Rated Output Power 4 kW; Max AC Charge Current 50 A; Max Charging Current 50 A; Rated Apparent Output Power 5 kVA; Rated Output Power 4 kW; Gross Weight 39.7 kg; Net Weight 36.3 kg; Package Dimensions 607 x 540 x 290 mm.
In stock
Single-phase 220 V at 50/60 Hz as a pure sine wave, regulated to within 5%.
Maximum PV voltage is 170 V and solar charging current reaches 120 A.
Utility passes through at 95%; converting from the 48 V bank the IVPM5048 peaks at 90%.
Fast enough for a desktop PC, and overload trips in 10 s above 105% load.
AGM, Flooded, Li-Ion and Self-Defined, charged at 57.6 V boost and 54.4 V float with RS485 to the BMS.
Intelligent air cooling, 0-40 °C operating range, and up to 6 units in parallel when a battery is fitted.
The Felicity Solar IVPM5048 is a single-phase, low-frequency off-grid inverter-charger that delivers 4 kW of rated output and 5 kVA of apparent output at 220 V, 50/60 Hz, from a 48 V battery bank. Its one built-in MPPT tracker takes up to 6.6 kW of PV within a 65-145 V window, 170 V maximum. Solar charging reaches 120 A and utility charging 50 A, in three stages - boost CC, boost CV, then float - at 57.6 V boost, 54.4 V float and 61.0 V maximum. Efficiency is 95% in line mode and 90% at best in inverter mode; transfer between utility and battery takes 15 ms, and the IVPM5048 holds twice its rated output for 5 seconds so pumps and compressors start cleanly. Batteries may be AGM, Flooded, Li-Ion or Self-Defined anywhere in a 42-63 V window, with RS485 to the battery BMS and RS232 for monitoring behind an LCD and LED panel. The cabinet is IP21, intelligently air-cooled, 494 x 420 x 195 mm and 36.3 kg net, and up to 6 units run in parallel when a battery is present. We are an authorised Felicity Solar distributor and supply the IVPM5048 from our own stock; warranty is 2 Years.
Specifications last updated 7 August 2026
| AC Output Voltage | 220 V |
|---|---|
| AC Wiring Mode | L+N+PE |
| Backup Rated Output Power | 4 kW |
| Battery Inputs | 1 |
| Battery Type | AGM, Flooded, Li-Ion, Self-Defined |
| Battery Voltage Range | 42-63 V |
| Bulk Charging Voltage | 57.6 V |
| Charge Algorithm | Three-Stage: Boost CC, Boost CV, Float |
| Float Charging Voltage | 54.4 V |
| High DC Input Recovery Voltage | 62 V |
| High Frequency Disconnect | 65 Hz |
| High Frequency Reconnect | 63 Hz |
| High Line Disconnect Voltage | 280 V |
| High Line Reconnect Voltage | 270 V |
| Input Voltage Range | 90-280 V |
| Input Voltage Range (UPS Mode) | 170-280 V |
| Input Voltage Waveform | Sinusoidal (utility or generator) |
| Line Mode Efficiency | 95 % |
| Line Mode Output Waveform | Same As Input Waveform |
| Low DC Shutdown (<50% Load) | 43 V |
| Low DC Shutdown (>50% Load) | 42 V |
| Low Frequency Disconnect | 40 Hz |
| Low Frequency Reconnect | 42 Hz |
| Low Line Disconnect (Appliance Mode) | 90 V |
| Low Line Disconnect (UPS Mode) | 170 V |
| Low Line Reconnect (Appliance Mode) | 100 V |
| Low Line Reconnect (UPS Mode) | 180 V |
| Low-Battery Recovery (<50% Load) | 47 V |
| Low-Battery Recovery (>50% Load) | 46 V |
| MPPT Trackers | 1 |
| MPPT Voltage Range | 65-145 V |
| Max AC Charge Current | 50 A |
|---|---|
| Max AC Input Voltage | 280 V |
| Max AC Pass-Through Current | 63 A |
| Max Charging Current | 50 A |
| Max Charging Voltage | 61.0 V |
| Max Efficiency | 90 % |
| Max PV Input Power | 6.6 kW |
| Max PV Voltage | 170 V |
| Max Solar Charging Current | 120 A |
| Motor Start Capable | Yes |
| Nominal AC Input Voltage | 220 V |
| Nominal DC Input Voltage | 48 V |
| Nominal Input Frequency | 50/60 Hz |
| Output Frequency | 50/60 Hz |
| Output Short-Circuit Protection | Yes |
| Output Voltage Regulation | 5 % |
| Output Voltage Waveform | Pure Sine Wave |
| Overload Protection | Air Switch Protection |
| Overload Trip Time (>105% Load) | 10 s |
| Overload Trip Time (>150% Load) | 5 s |
| PV Working Voltage Range | 65-145 V |
| Pass-Through Without Battery | No |
| Phase | Single Phase |
| Protection | Over Charge Protection, Over Discharge Protection, Overload Protection, Output Short Circuit Protection, Over Temperature Protection |
| Rated Apparent Output Power | 5 kVA |
| Rated Output Power | 4 kW |
| Short-Circuit Protection (Line Mode) | Air Switch Protection |
| Start-Up Voltage | 46 V |
| Strings per MPPT | 1 |
| Surge Rating | 2*rated (5s) |
| Transfer Time | 15 ms |
| BMS Communication | RS485 |
|---|---|
| Communication Interface | RS232 |
| Display | LCD, LED |
| Gross Weight | 39.7 kg |
| Net Weight | 36.3 kg |
| Package Dimensions | 607 x 540 x 290 mm |
| Parallel Capability | 6 (battery required) |
| Topology | Low-Frequency (transformer-based) |
| Cooling | Intelligent Air Cooling |
|---|---|
| IP Rating | IP21 |
| Operating Temperature Range | 0-40 °C |
| Storage Temperature | -15 to 60 °C |
Looking up an error code on this FelicityESS IVPS/IVPM Series? Browse the full list of codes for this device, with the cause and recommended fix for each.
View error codes for this device →Up to 6.6 kW of PV: the IVPM5048 has one built-in MPPT tracker working between 65 V and 145 V, with 170 V maximum PV voltage and up to 120 A of solar charging current into the 48 V bank.
50 A is the maximum AC charge current. AC input is accepted from 90-280 V in appliance mode or 170-280 V in UPS mode at 50/60 Hz, and pass-through current is rated 63 A.
48 V nominal, usable from 42 V to 63 V. AGM, Flooded, Li-Ion and Self-Defined batteries are supported, charged in three stages - boost CC, boost CV, then float - at 57.6 V boost, 54.4 V float and 61.0 V maximum, with RS485 to the battery BMS.
36.3 kg net and 39.7 kg gross; the unit itself measures 494 x 420 x 195 mm and ships in a 607 x 540 x 290 mm carton. Up to 6 units run in parallel, and a battery must be connected.