MEAN WELL TN-3000-248C is a 3000 W true sine wave inverter with built-in solar and AC battery charging. It uses a 48 VDC nominal lead-acid battery system and delivers 230 VAC / 50 Hz at factory settings through Australian Type-C receptacles. Apply the temperature, battery-voltage and connection limits when sizing the load.
Product Datasheet
Download MEAN WELL TN-3000 Datasheet (PDF)
The TN-3000 section is on PDF pages 5, 6, 7, 8. Refer to the complete mechanical drawings and notes when planning installation.
Model and Inverter Output
| Complete model |
TN-3000-248C |
| Series |
TN-3000 |
| Continuous output power |
3000 W |
| Nominal DC input voltage |
48 VDC |
| Default AC output voltage |
230 VAC |
| Maximum power for 180 seconds |
3450 W |
| Maximum power for 10 seconds |
4500 W |
| Surge power for 30 cycles |
6000 W |
| Selectable AC voltage |
200 / 220 / 230 / 240 VAC |
| Factory frequency |
50 ±0.1 Hz |
| Frequency selection |
50 / 60 Hz |
| Waveform and AC regulation |
True sine wave, THD <3%; typical AC regulation ±3% |
The 3000 W rated value and the three higher power levels are distinct limits. The 6000 W surge is limited to 30 AC cycles. The specification labels these power values typical; apply all operating and wiring limits.
Model code TN identifies a true sine wave inverter with AC and solar charging; 3000 identifies the output class; 2 selects the 230 VAC output group; 48 identifies the nominal battery voltage; C identifies Australian Type-C receptacles. Output voltage and frequency are selectable using the setting button.
Battery Input and Consumption
| Typical DC input range |
42–60 VDC |
| Typical DC input current |
75 A |
| Typical efficiency |
92% |
| Battery chemistry |
Open and sealed lead-acid batteries |
| Standby-saving no-load power |
≤10 W |
| Off-mode current |
≤1 mA |
| Standby-saving load threshold |
≤5 W |
Standby saving is disabled by default. When enabled, a load of 5 W or less changes the unit to standby mode. The front-panel switch controls power ON/OFF.
Efficiency is measured with a 2100 W linear load at 52 VDC. Typical DC current is measured with a 3000 W linear load at 48 VDC. THD is measured with a 3000 W linear load at 52 VDC. Unspecified tests use rated load, 25°C ambient and factory settings.
AC and Solar Battery Charging
| Typical AC charging current |
6 A |
| Charge voltage |
57 V |
| Solar maximum open-circuit voltage |
75 VDC |
| Solar maximum short-circuit current |
30 A |
The inverter incorporates both an AC battery charger and a solar charger. Select the solar array so its open-circuit voltage does not exceed 75 VDC and its short-circuit current does not exceed 30 A. These solar-panel limits are separate from the AC charger current.
The monitoring software can adjust equalization voltage, floating voltage, low-voltage alarm and shutdown settings to suit the battery. Confirm the battery manufacturer limits before changing the charger settings.
UPS, Bypass and Front-Panel Operation
| Typical transfer time |
10 ms between inverter and bypass |
| Selectable operating modes |
UPS mode / energy-saving mode |
| Front-panel indication |
Battery voltage level, output load level, saving mode, fault and operating status |
Bypass mode supplies energy directly from the AC utility to the load. The monitoring software displays utility voltage, inverter output voltage and frequency, internal temperature, battery voltage and state, charging status and load information.
The front panel identifies AC charge, solar charge, battery, inverter and bypass paths, with indicators for setting, ON, battery-low and saving states. Use the product user manual for mode setup and complete AC wiring requirements.
Protection
| Low-battery alarm |
45 VDC |
| Low-battery shutdown |
42 VDC |
| Specified battery-voltage tolerance |
±2 V |
| Internal fuse arrangement |
6 × 20 A |
| Overtemperature protection threshold |
75 ±5°C |
| AC output circuit breaker |
20 A |
| AC receptacle circuit breaker |
15 A |
| Ground-fault protection |
Type-F only; not fitted in this configuration |
Reverse battery polarity opens the internal fuse. The listed low-battery voltage tolerance also applies to the corresponding battery-input voltage and charge-voltage values.
Typical overload protection allows 105–115% load for 180 seconds or 115–150% load for 10 seconds. Overload, output short circuit and overtemperature shut down the output voltage; re-power on to recover. The overtemperature threshold is a protection threshold, not the permissible ambient temperature.
Overvoltage protection is included. Observe the stated battery-input range and charge settings.
Environment and Derating
| Operating ambient |
0 to +60°C, subject to load derating |
| Working humidity |
20–90% RH, non-condensing |
| Storage conditions |
−30 to +70°C; 10–95% RH, non-condensing |
| Cooling |
Thermostatically controlled fans |
| Vibration |
10–500 Hz, 3G; 10 minutes/cycle, 60 minutes on each X, Y and Z axis |
The temperature curve permits 100% load from 0°C through 40°C, then decreases to 50% at 60°C. The upper operating temperature is not a full-load rating.
For horizontal mounting, the battery-input curve permits 80% load at 42 VDC, rising to 100% at 46 VDC and remaining at 100% through 60 VDC. Apply the battery-input and temperature limits together.
Above 2000 m altitude, apply the datasheet temperature reduction of 5°C per additional 1000 m for models with fans.
Connections, Dimensions and Installation
| Output configuration |
Australian Type-C receptacles |
| AC terminal labels |
AC INPUT L, N; AC OUTPUT L, N; FG |
| Dimensions, L × W × H |
466.8 × 283.5 × 100 mm |
| Drawing tolerance |
±0.5 mm |
| Catalogue mass per unit |
12.9 kg / 12900 g |
When load current exceeds 15 A, use the output terminal connection inside the AC output panel instead of drawing that current through a receptacle. This limit also matters when selecting a lower AC output voltage.
The rear drawing identifies positive and negative battery connections, the solar connection and fan airflow. Follow the marked polarities and keep the fan airflow path clear. The mechanical drawing gives 273 mm body width, 283.5 mm overall width and 466.8 mm enclosure length. It separately marks a 46 mm DC-terminal projection; allow connection clearance and use the drawing for mounting-slot positions and the front projections of the supplied configuration.
If connected directly to a vehicle battery, do not turn on the inverter before starting the engine. Follow the manufacturer installation manual for conductor sizing, isolation and chassis bonding.
The PACKING field gives 12.9 kg as the catalogue reference per unit, with one unit / 14 kg / 1.49 CUFT for the package. It is not a measured shipment weight.
Included RS-232 Cable and Software
| Included communication cable |
RJ11-RS232 |
| RJ11 pin 2 |
DB9 female pin 3 |
| RJ11 pin 3 |
DB9 female pin 5 |
| RJ11 pin 4 |
DB9 female pin 2 |
| Monitoring software |
MEAN WELL TN-3000 monitoring program |
| Catalogue-listed operating systems |
Windows 7 / Windows 8, English or Traditional Chinese (Taiwan) |
The RJ11-RS232 cable is included for connecting the inverter to a computer. Obtain the monitoring software from the manufacturer’s product software section and check support for the computer being used.
The Main page displays current operating status and signals. Settings opens the configuration page; Statistics reports operation-time percentages; R.C. Power off controls remote ON/OFF; Pause stops updates to the monitoring display.
On the Setting page, Read obtains current settings, Write sends the revised settings to the inverter, and Load restores factory defaults. Select the required AC voltage, permitted frequency, UPS or energy-saving mode and standby-saving option, together with the battery charging and low-voltage settings.
Use the applicable model settings shown by the software for this battery voltage. Confirm equalization, floating, alarm and shutdown values against the battery requirements before writing them.
Statistics reports inverter, bypass and shutdown time rates, which total 100%, as well as solar charging time and average loading. Reset clears the statistics but does not change the original start date.
Safety, EMC and Reliability
| Socket-specific certificate marks |
E13 and CE |
| Safety-standard scope |
IEC62368-1 CB and EAC TP TC 004 approved; design reference to BS EN/EN62368-1 |
| Battery to AC input withstand |
3.0 kVAC |
| Battery to AC output withstand |
3.0 kVAC |
| AC output to FG withstand |
1.5 kVAC |
| Insulation resistance |
100 MΩ at 500 VDC, 25°C, 70% RH |
| MTBF, Telcordia SR-332 |
186.9 thousand hours minimum |
| MTBF, MIL-HDBK-217F |
26.7 thousand hours minimum at 25°C |
Insulation-resistance paths are battery input to AC output, battery input to FG, and AC output to FG. Use approvals for the complete selected configuration; socket certificate marks do not transfer to other socket versions.
Emission compliance: BS EN/EN55032 Class A, 72/245/CEE, 95/54/CE, E-Mark and EAC TP TC 020. Immunity: EN61000-4-2, -3, -4, -5, -6, -8 and -11, BS EN/EN55035 and EAC TP TC 020.
Selection and Supply
Type-B is the standard European receptacle configuration; Australian Type-C, UK Type-D and Type-G terminal output are optional order configurations within the 230 V group.
This model includes the built-in AC and solar charging functions and the RJ11-RS232 monitoring cable. Select batteries, solar panels and installation wiring separately to match the system requirements.
Applications include home and office appliances, power tools, portable equipment, vehicles and yachts. The manufacturer datasheet lists a three-year warranty; applicable supply terms govern coverage.
