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Morningstar SureSine Classic 300 W Inverter, 115 V 60 Hz (SI-300-115V-UL)
- Brand
- Morningstar
- Model
- SI-300-115V-UL
- Category
- Inverters
AC output
| Continuous output | 0.3 kW[1]Calculated |
|---|---|
| Peak output | 600 Watts @ 25°C (15 min)[1] |
| AC configuration | ? |
| AC output voltage | 115 V[1] |
| AC frequency | 60 Hz[1] |
| Grid pass-through | ? |
| Maximum output per leg | ? |
Battery
| Battery voltage | 12 V[1] |
|---|---|
| Battery voltage range | 10.0-15.5 V DC[1] |
| Maximum charge current | ? |
| Maximum discharge current | ? |
| Battery-only output | ? |
| Maximum grid charging | ? |
| Compatible batteries / BMS | ? |
PV input
| PV array limit (connected) | ? |
|---|---|
| PV input limit (converted) | ? |
| Maximum PV voltage (Voc) | ? |
| MPPT voltage range | ? |
| MPPT trackers | ? |
| String inputs per MPPT | ? |
| PV current per MPPT | ? |
| PV short-circuit current | ? |
| PV startup voltage | ? |
Efficiency and modes
| Peak efficiency | 92 %[1] |
|---|---|
| CEC weighted efficiency | ? |
| Battery conversion efficiency | ? |
| Grid / off-grid modes | ? |
| Generator input | ? |
| Transfer time | ? |
| Idle consumption | ? |
| Parallel units | ? |
Communication and environment
| Communications | RJ-11: Morningstar Meterbus / Modbus 16-bit RTU[1] |
|---|---|
| Operating temperature | -40 to 45 °C[1] |
| Enclosure rating | IP20; Type 1 (Indoor Only)[1] |
| Operating noise | ? |
Mechanical
| Dimensions | 213 D × 152 D × 105 D mm[1] |
|---|---|
| Weight | 4.5 kg / 9.92 lb[1] |
Installation (from the manual)
Torque
| AC terminal torque | 0.8 N·m(7.08 in-lb*)[1] |
|---|---|
| Battery terminal torque | 5.65 N·m(50.01 in-lb*)[1] |
| PV terminal torque | ? |
| Ground terminal torque | ? |
Conductors
| Battery conductors | DC terminals: 2.5 to 35 mm2 / 14 to 2 AWG; battery cables 6 AWG (6 mm2) or larger[1] |
|---|---|
| AC input conductors | ? |
| AC output conductors | Up to 4 mm2 / up to 12 AWG (AC terminals); UL Listed 12AWG (4 mm2) wire[1] |
| PV conductors | ? |
| Ground conductor | ? |
Protection
| Breakers / fuses | 3A AC in-line fuse; 100A DC in-line fuse[1] |
|---|---|
| AC input breaker | ? |
| AC output breaker | ? |
| Battery fuse or breaker | ? |
| PV disconnect | ? |
Clearances and orientation
| Installation clearances | ? |
|---|---|
| Mounting orientation | Horizontally on a flat surface (like a table) or vertically (on a wall)[1] |
Not in the manual: Grounding, Communication
Page 1 of 2 · Installation values · ? means nothing is recordedAggregated, often community-reported information, not official documentation. Do not rely on it for installation, purchase or compliance decisions; always confirm values with the manufacturer’s official documentation. Charged Reviews accepts no responsibility for errors.