Morningstar SureSine Inverter-300 watt, 220volt,50Hz


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Morningstar SureSine Inverter-300 watt, 220volt,50Hz  SHIPPING NOT INCLUDED WE WILL EMAIL YOU SHIPPING COST

The SureSine inverter has been developed using Morningstar’s power electronics expertise and 25 years of

experience with remote off-grid photovoltaic (PV) systems. This product is a pure sine wave inverter designed
specifically to meet the needs of rural PV electrification requiring AC power including solar home systems, schools,
community centers and health clinics. This inverter is also a good choice for small PV systems for telecom, remote
Suresine 300cabins and weekend homes, and RV/caravans and boats.

The SureSine’s combination of performance, features and competitive price provides the best small inverter valueon the market. It is highly reliable, having no internal cooling fan or other moving parts prone to failure.


Advantages Compared to Other Small Off-Grid Inverters


  • Pure Sine Wave – Provides quality AC power equivalent to the grid.
  • Toroidal Transformer Design – Generates good wave form throughout the range of input voltages.
  • Outstanding Surge Capability – Handles up to 200% surge during load start-up.
  • High Efficiency – Has a high peak efficiency of 92%.
  • Low Self Consumption – Consumes only 450mA while powering loads.  Automatic stand-by mode reduces consumption to only 55mA.
  • Extensive Electronic Protections – Automatic protection against faults and user mistakes including short circuit, overload, high temperatures and low voltage.  Recovery from protections is automatic.
  • No Internal Cooling Fan – Eliminates a key failure mode and reduces noise, self-consumption and dirt blowing into the electronics.
  • Tropicalization – Protected against harsh tropical and marine environments through the use of epoxy encapsulation, conformal coating, stainless steel hardware and an anodized aluminum enclosure.
  • Adjustability – Several parameters may be adjusted via the DIP switches or by connecting to a personal computer.



Electrical Specifications

Continuous Power Rating 300 Watts @ 25°C
Peak Power Rating (10 minutes)
600 Watts @ 25°C
DC Input Voltage
10.0V – 15.5V
Pure sine wave
AC Output Voltage (RMS)*
220V or 115V +/– 10%
AC Output Frequency*
50 or 60 Hz +/– 0.1%
Peak Efficiency 92%
Total Harmonic Distortion (THD) < 4%
Self Consumption:  
    Inverter On (no load) 450mA
    Inverter Off 25mA
    Stand-by 55mA
Low Voltage Disconnect (LVD) 11.5 V or 10.5 V**
Low Voltage Reconnect 12.6 V or 11.6 V**
LVD Warning Threshold (buzzer) 11.8 V or 10.8 V**
LVD Delay Period 4 minutes
High Voltage Disconnect 15.5 V
High Voltage Reconnect 14.5 V
Standby On Threshold ~ 8 Watts
Standby Off Threshold ~ 8 Watts
High Temperature Disconnect 95°C (heatsink)
High Temperature Reconnect 80°C (heatsink)
*Two separate versions available:
220VAC at 50 Hz or 115VAC at 60 Hz
Other output voltages available upon request.

**User selectable on both versions.

Mechanical Specifications

213 x 152 x 105 mm ( 8.4 x 6.0 x 4.1 in)
4.5 Kg / 10.0 lbs
AC Terminals
Max. Wire Size 4 mm2 / 12 AWG
DC Terminals
Max. Wire Size 2.5 to 35 mm2
14 to 2 AWG
Remote On/Off Terminals
Max. Wire Size 0.25 to 1.0 mm2
24 to 16 AWG
IP20 Cast anodized aluminum

Morningstar Corporation


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