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1.0 Safety Notes 

 
 

IMPORTANT SAFETY INSTRUCTIONS 

SAVE THESE INSTRUCTIONS

 

 

This manual contains important safety, installation and operating instructions for 
the Morningstar SureSine-300 Inverter. 
 
The SureSine produces voltages and currents capable of causing severe injury 
or death. Extreme caution must be taken when installing and using the SureSine. 
 
The following symbols are used throughout this manual to indicate potentially 
dangerous conditions or important safety instructions. 

 

 

WARNING: Indicates a potentially dangerous condition. 
 

 

CAUTION: Indicates a critical procedure for safe and proper 
operation of the SureSine. Use extreme caution when performing 
this task. 

 

NOTE: Indicates a procedure or function that is important to the 
safe and proper operation of the SureSine Inverter. 

 

 

General Safety Information 

 

  Read all of the instructions and cautions in the manual before starting the 

installation. 

  Ensure that battery power has been disconnected 

BEFORE

 installing, 

servicing, or removing the SureSine Inverter. 

  Do not allow water to enter the SureSine. 

Summary of Contents for SI-300-115V

Page 1: ...ation Manual Model DC Input AC Output SI 300 115V 12 Vdc 115 V 60 Hz SI 300 220V 12 Vdc 220 V 50 Hz SI 300 220V 12 Vdc 220 V 60 Hz 1098 Washington Crossing Road Washington Crossing Pennsylvania 18977...

Page 2: ...2 Table of Contents 1 0 Safety Notes 3 2 0 Overview 4 3 0 Installation 5 4 0 Operation 11 5 0 Protections 12 6 0 Maintenance 13 7 0 Warranty 14 8 0 Technical Specifications 15...

Page 3: ...lly dangerous conditions or important safety instructions WARNING Indicates a potentially dangerous condition CAUTION Indicates a critical procedure for safe and proper operation of the SureSine Use e...

Page 4: ...r Remote Meter or PC Communications 3 DIP Switches Four switches to adjust operating parameters 4 Remote On Off Contacts Connection points for remote On Off switch or jumper wire 5 AC Output LED Displ...

Page 5: ...ere battery gasses can accumulate Place the SureSine on the surface where it will be mounted and determine where the wires will enter exit Be sure there is sufficient bending room for the wires and ot...

Page 6: ...re detected in one 1 second or less Down Position Always ON factory default Up Position Standby Mode DIP Switch 2 Low Voltage Disconnect Select the Low Voltage Disconnect LVD and Reconnect LVR setpoin...

Page 7: ...AC line and neutral are interchangeable Use UL Listed 12AWG 4 mm2 black wire for AC Line and UL Listed 12AWG 4 mm2 white wire for AC Neutral The earth grounded leg defines AC Neutral AC power cables a...

Page 8: ...an be installed to switch the SureSine AC output on off from a remote location allowing the SureSine to be installed in an inaccessible location or enclosure A single pole single throw switch SPST is...

Page 9: ...FUSE 1 2 3 4 Green Red Black Figure 5 DC Wiring Diagram DC power cables are not supplied Use UL Listed wire only rated for the voltage current and wire length needed for the system Minimum wire gauge...

Page 10: ...nnections 2 Verify that the battery is wired with correct polarity to the SureSine 3 Connect the Battery cable red to the positive battery post WARNING Connecting the battery to the SureSine will caus...

Page 11: ...output is turned off 4 2 LED Indications AC Output LED STATUS LED Figure 7 LED Identification AC Output LED STATUS LED Operation or State OFF OFF No power or Battery below 9 5V OFF GREEN AC Output OFF...

Page 12: ...matic reconnection when battery voltage decreases to 14 5V 5 3 High Temperature Disconnect HTD If the SureSine heatsink temperature rises above 95 C an HTD fault will occur and the SureSine will disco...

Page 13: ...properly switches on and off 6 3 Fuse Replacement If the SureSine does not function properly there is a possibility of a blown fuse caused by DC reverse polarity or over current To check the fuses 1...

Page 14: ...ipping charges if the repairs are covered by the warranty WARRANTY EXCLUSIONS AND LIMITATIONS This warranty does not apply under the following conditions Damage by accident negligence abuse or imprope...

Page 15: ...e 11 5 V or 10 5 V Low Voltage Reconnect Adjustable 12 6 V or 11 6 V LVD Warning Threshold buzzer Adjustable 11 8 V or 10 8V LVD Delay Period 4 minutes Instant LVD 10 V High Voltage Disconnect 15 5 V...

Page 16: ...10 220 230 240 250 260 270 280 290 300 310 0 5 10 15 20 25 30 35 40 45 Ambient Temperature C Continuous Output Power W SI 300 Efficiency 40 50 60 70 80 90 100 0 100 200 300 400 500 600 Power Out Watts...

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