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Morningstar SI-300-120V
Morningstar SI-300-120V-UL SureSine 300W Inverter, 120V

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Morningstar SI-300-120V-UL SureSine 300W Inverter, 120V
[SI-300-120V, SI.300.120V, SI 300 120V, SI_300_120V, SI300120V]

 

 Important Notice about Morningstar SI-300-115V-UL SureSine 300W Inverter 115VAC at 60Hz  
 
The Morningstar SI-300-115V-UL SureSine 300W Inverter 115VAC at 60Hz has replaced this product.
 
 Important Notice about Morningstar SI-300-115V-UL SureSine 300W Inverter 115VAC at 60Hz

 

 

Description
& Features

Morningstar SI-300-120V-UL SureSine 300W Inverter, 120V

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 cabins and weekend homes, and RV/caravans and boats.

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

Features of the Morningstar SI-300-120V-UL SureSine 300W Inverter, 120V:

  • Pure Sine Wave
  • Handles up to 200% surge
  • 55mA self consumption (standby mode)
  • No internal cooling fan
  • Adjustable and Programmable
  • Toroidal transformer design
  • Peak efficiency of 92%
  • Extensive electronic protections with automatic recovery
  • Protected against harsh tropical and marine environment

 

Key Features and Benefits of the Morningstar SI-300-120V-UL SureSine 300W Inverter, 120V:

Improved Load Operation

Pure Sine Wave — Provides quality AC equivalent to grid power. A sine wave will extend the life of the household appliances (lights, TV, fans) and improve load performance. Toroidal transformer design — Generates good wave form throughout the range of input voltages.

Outstanding Surge Capability — Handles a 200% surge during load start-up, to a maximum of 600 watts.

More Power Available

High Efficiency — A high peak efficiency will reduce heating and make more solar energy available for powering loads.

Low Self-Consumption — The SureSine consumes 450mA while powering loads. During no load conditions, solar energy is not wasted because the SureSine automatically powers down to stand-by mode, reducing self-consumption to one tenth of operating consumption.

Extremely High Reliability

Extensive Electronic Protections — The SureSine has extensive electronic protections that will automatically protect against faults and user mistakes such as short circuit, overload, high temperature and low voltage disconnect. Recovery from most faults is automatic.

No Internal Cooling Fan — A key design objective since fans often fail in harsh environments and are noisy, consume power and blow dirt into the electronics.

Tropicalization — The SureSine uses epoxy encapsulation, conformal coating, stainless steel hardware, and an anodized aluminum enclosure to protect against harsh tropical and marine environments.

Other Features

More Information — The two LEDs provide important information to the user about system status and any fault conditions. An optional digital meter may be connected to the SureSine to display additional system information.

Remote On/Off — Improves safety by making it easy to install the SureSine in an inaccessible location or enclosure. Reduces system cost by avoiding the need to add an AC safety disconnect to the system.

Adjustability — Four DIP switches provide easy adjustability of several system parameters. Additional adjustability is possible via RJ-11 to RS-232 adapter to a personal computer and using Morningstar's PC software.

Also Known As:
SI.300.120V
SI 300 120V
SI_300_120V
SI300120V

Specifications

Specifications for the Morningstar SI-300-120V-UL SureSine 300W Inverter, 120V

Electrical Specifications
Continuous Power Rating300 Watts @ 25°C
Peak Power Rating (10 minutes)600 Watts @ 25°C
DC Input Voltage10.0V — 15.5V
WaveformPure sine wave
AC Output Voltage (RMS)*120V +/— 10%
AC Output Frequency*50 or 60 Hz +/— 0.1%
Peak Efficiency92%
Total Harmonic Distortion (THD)< 4%
Self Consumption 
Inverter On (no load)450mA
Inverter Off25mA
Stand-by55mA
Low Voltage Disconnect (LVD)11.5 V or 10.5 V**
Low Voltage Reconnect12.6 V or 11.6 V**
LVD Warning Threshold (buzzer)11.8 V or 10.8 V**
LVD Delay Period4 minutes
High Voltage Disconnect15.5 V
High Voltage Reconnect14.5 V
Standby On Threshold8 Watts
Standby Off Threshold8 Watts
High Temperature Disconnect95°C (heatsink)
High Temperature Reconnect80°C (heatsink)
Electronic Protections
Reverse Polarity (fused)High Voltage Disconnect
AC Short CircuitLow Battery Disconnect
AC OverloadHigh Temperature
Mechanical Specifications
Dimensions213 x 152 x 105 mm
 8.4 x 6.0 x 4.1 in
Weight4.5 Kg / 10.0 lbs
AC Terminals Max. Wire Size4 mm2 / 12 AWG
DC Terminals Max. Wire Size2.5 to 35 mm2
 14 to 2 AWG
Remote On/Off Terminals Max. Wire Size0.25 to 1.0 mm2
 24 to 16 AWG
EnclosureIP20
 Cast anodized aluminum
Environmental Specifications
Ambient Operating Temp—40°C to +45°C
Storage Temperature—55°C to +85°C
Humidity100% (non-condensing)
TropicalizationConformal coating on printed circuit boards
 Epoxy encapsulated transformer and inductors
Certifications
CE Compliant
UL Listed (UL 458) — 120 V version ONLY
cUL (CSA C22.2 No. 107.1-01) — 120 V version ONLY
Note: Specifications and pricing of the Morningstar SI-300-120V-UL SureSine 300W Inverter, 120V subject to change without notice. Illustrations and descriptions of the Morningstar SI-300-120V-UL SureSine 300W Inverter, 120V do not claim to be complete.
   Reviews of the Morningstar SI-300-120V-UL SureSine 300W Inverter, 120V
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