Morningstar SureSine 150 Installation And Operation Manual
Morningstar SureSine 150 Installation And Operation Manual

Morningstar SureSine 150 Installation And Operation Manual

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MORNINGSTAR
World's Leading Solar
Controllers
&
Inverters
Installation and Operations Manual
150 W, 300 W, & 700 W (12 V, 24 V, & 48 V) Models,
1,000 W & 1,250 W, (24 V & 48 V) Models,
2,500 W (48 V Only) Models
(120 V / 60 Hz, 230 V / 50 Hz,
127 V / 60 Hz, and 220 V / 60 Hz)
November 2023 (Rev 3)

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Summary of Contents for Morningstar SureSine 150

  • Page 1 MORNINGSTAR World’s Leading Solar Controllers & Inverters Installation and Operations Manual 150 W, 300 W, & 700 W (12 V, 24 V, & 48 V) Models, 1,000 W & 1,250 W, (24 V & 48 V) Models, 2,500 W (48 V Only) Models...
  • Page 2: Contact Information

    Corporation can truly claim to be “the leading supplier of solar controllers and inverters.” That success is why Morningstar has had staying power and stable management for over 27 years, along with the lowest employee turnover rate.
  • Page 3: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS - This manual contains important safety, installation, and operating instructions for the Morningstar SureSine 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.
  • Page 4 MORNINGSTAR World’s Leading Solar Controllers & Inverters WIRE AND CABLE SAFETY Proper wire type and size is required for all installations. Use only UL-listed Class B or Class C wire rated for 300 volts and 75ºC or higher. Use stranded wire for the battery circuit and solid or stranded wire for the AC and Ground circuits.
  • Page 5: Battery Safety Information

    MORNINGSTAR World’s Leading Solar Controllers & Inverters CAUTION: HOT SURFACE/BURN HAZARD The SureSine inverter models 700 Watts to 2,500 W can become very hot. Install the SureSine so that it cannot be accidentally touched. BATTERY SAFETY INFORMATION WARNING: SHOCK HAZARD •...
  • Page 6 MORNINGSTAR World’s Leading Solar Controllers & Inverters BATTERY SAFETY INFORMATION (Continued) CAUTION: EQUIPMENT DAMAGE • Ensure the battery voltage matches the DC voltage requirements of the model of SureSine inverter to be installed. • Ensure the battery bank consists of batteries of the same type, make and age.
  • Page 7: Table Of Contents

    MORNINGSTAR World’s Leading Solar Controllers & Inverters Table of Contents Introduction ........................1 Features .........................1 Components of the 150 W & 300 W Models ............2 Components of the 700 W Models ...............3 Components of the 1,000 W to 2,500 W Models ..........4 Dimensions of the 150 W &...
  • Page 8 World’s Leading Solar Controllers & Inverters MS-CAN (Future Feature) ..................45 4.6.1 To Connect the SureSine to another Morningstar Device ......45 4.6.2 To Connect the SureSine to a Morningstar Network ......46 Firmware Update Procedure ..................47 Inspection and Maintenance ..................47 General Care ......................47 Inspection Schedule ....................47...
  • Page 9 MORNINGSTAR World’s Leading Solar Controllers & Inverters List of Figures Figure 1: SureSine Inverters Series ....................1 Figure 2: SureSine Inverter Features (150 W & 300 W Models) .............2 Figure 3: SureSine Inverter Features (700 W Models) ..............3 Figure 4: SureSine Inverter Features (1,000 W to 2,500 W Models) ..........4 Figure 5: Dimensions - 150 W to 300 W Models ................5...
  • Page 10 Table 10: Ethernet Jack LED Indications ..................33 Table 11: SureSine Model Numbers .....................50 Table 12: Specifi cations for the SureSine 150 and SureSine 300 ..........52 Table 13: Specifi cations for the SureSine 700 and SureSine 1000 ..........53 Table 14: Specifi cations for the SureSine 1250 and SureSine 2500 ..........54 Table 15: Common Specifi...
  • Page 11: Introduction

    • Multiple communication options. – Mobile devices can connect through Bluetooth – Other network devices can connect through Ethernet and/or EIA-485 – FUTURE FEATURE: The SureSine Inverter can pair with other Morningstar products that feature MS-CAN Communication for control, adjustments, and monitoring performance...
  • Page 12: Components Of The 150 W & 300 W Models

    INTRODUCTION Components of the 150 W & 300 W Models Figure 2 shows the components included with the 150 and 300 W models. Figure 2: SureSine Inverter Features (150 W & 300 W Models) MS-003650 (Rev 3)
  • Page 13: Components Of The 700 W Models

    INTRODUCTION Components of the 700 W Models Figure 3 shows the components included with the 700 W models. Figure 3: SureSine Inverter Features (700 W Models) MS-003650 (Rev 3)
  • Page 14: Components Of The 1,000 W To 2,500 W Models

    INTRODUCTION Components of the 1,000 W to 2,500 W Models Figure 4 shows the components included with the 1,000 W to 2,500 W models. Figure 4: SureSine Inverter Features (1,000 W to 2,500 W Models) MS-003650 (Rev 3)
  • Page 15: Dimensions Of The 150 W & 300 W Models

    INTRODUCTION Dimensions of the 150 W & 300 W Models Figure 5: Dimensions - 150 W to 300 W Models MS-003650 (Rev 3)
  • Page 16: Dimensions Of The 700 W To 2,500 W Models

    INTRODUCTION Dimensions of the 700 W to 2,500 W Models Figure 6: Dimensions - 700 W to 2,500 W Models MS-003650 (Rev 3)
  • Page 17: Installation

    INSTALLATION INSTALLATION Included in the box: • Mounting Screws (#10 x4) • CAN Terminal resistor • Terminal block connector (for ModBus™, Remote Switch, Auxiliary Power) Required Tools WARNING: SHOCK HAZARD This product can produce hazardous voltage. Use insulated tools while working with this equipment.
  • Page 18: Mounting

    INSTALLATION Mounting The SureSine may be mounted horizontally on a fl at surface (like a table) or vertically (on a wall). If mounted vertically (on a wall), the inverter can be mounted either portrait style or landscape style. Ensure that there is enough space inside the enclosure for the wiring and ventilation.
  • Page 19: Safety Considerations For Mounting

    INSTALLATION 2.3.1 Safety Considerations for Mounting WARNING: EXPLOSION/FIRE HAZARD Do not install in a confi ned area where battery gases can accumulate. Battery gases can create an explosion or fi re hazard if ignited by a spark. Ensure the enclosure is ventilated well enough to disperse any accumulated gases. Do not install over an easily combustible surface, since the heat sink may get hot under certain operating conditions.
  • Page 20: Mounting Procedure

    INSTALLATION 2.3.2 Mounting Procedure To secure the inverter to the mounting surface: 1. Place the SureSine on the surface where it will be mounted and determine where the wires will enter/exit. • Be sure there is suffi cient bending room for the wires and other auxiliary connections, as required by local code.
  • Page 21: Adjusting Settings

    INSTALLATION Adjusting Settings The SureSine has eight (8) DIP Switches that allow for adjusting specifi c operational parameters for the inverter. Each switch has an ON/OFF position. See Section 2.4.2 on page 12 for details on specifi c settings. IMPORTANT: Check that the DIP Switches are properly confi gured for the designed installation prior to installing the inverter.
  • Page 22: Dip Switch Confi Guration Options

    INSTALLATION 2.4.2 DIP Switch Confi guration Options DIP Switches control the operational functions of the inverter as follows. The default position for these switches is OFF. Table 1: DIP Switch Con guration Function Status Control Content Switch Operational Control AC Output is controlled by the Remote ON/OFF Switch (with AC Switch Down AC Output is controlled by the communication command (digital (Remote))
  • Page 23: Pluggable Terminal Block Installation For Remote Switch Or Communications Wiring

    INSTALLATION Pluggable Terminal Block Installation for Remote Switch or Communications Wiring If the application includes using a Remote Switch, 12 V Auxiliary Power, or EIA-485 communications Port, the pluggable terminal block that is included in the box will need to be installed. This will either be an 4-pin (150 W or 300 W models) or two 8-pin (700 to 2,500 W models) pluggable terminal block(s).
  • Page 24: Remote Switch Installation (Optional)

    INSTALLATION Remote Switch Installation (Optional) IMPORTANT: Check the AC Output Mode Switch on the AC end of the inverter and ensure it is in the REMOTE position before wiring. See Figure 28 on page 33. If the site application requires a Remote ON/OFF Switch or relay dry contact, the following illustration shows where to connect the wires.
  • Page 25: Auxiliary Power (Optional)

    INSTALLATION Auxiliary Power (Optional) Auxiliary Power for 1 W (Maximum), 12 Vdc applications is available on the 700 W to 2,500 W Models only. These types of applications include: • EIA-485 Communication Bus. • Small DC devices (e.g., LEDs). Figure 16: Auxiliary Power Terminals on 700 W to 2,500 W Models MS-003650 (Rev 3)
  • Page 26: Inverter Wiring

    INSTALLATION Inverter Wiring This section provides general instructions for connecting all the wiring for the inverter. This includes DC, AC, Neutral, and all Ground connections (system and chassis). Ensure all connections are made as required by local regulatory code. WARNING: SHOCK HAZARD •...
  • Page 27: Over-Current Protection Requirements

    INSTALLATION 2.8.2 Over-current Protection Requirements WARNING: RISK OF FIRE Fuses or circuit breakers are required in the DC battery circuit (all models) and in the AC output circuit (HW models) and shall be provided by the installer. Locate battery breakers or fused disconnects for easy access and free from hydrogen gas/sulfuric acid fumes.
  • Page 28: Dc And Ac Conductor Sizing Requirements

    INSTALLATION 2.8.2.2 Recommended AC Over-current Protection Device Sizing Use Table 5 to determine the size of the over-current protection device required for the AC conductor. Table 5: AC Circuit Breaker/Fuse Size AC Output Maximum Continuous AC Circuit Breaker/Fuse Ratings Current Model Power Rating 120 Vac &...
  • Page 29: Table 6: Minimum Battery Cable Size - 75°C Rated Copper

    INSTALLATION Use Table 6 to determine the minimum size for the DC Battery cables. Table 6: Minimum Battery Cable Size - 75°C rated Copper Wire in a Raceway, Cable, or Earth @30°C Model Power Rating 12 Vdc Model 24 Vdc Model 48 Vdc Model 150 W 10 AWG 14 AWG...
  • Page 30: Grounding And Bonding Requirements

    INSTALLATION 2.8.4 Grounding and Bonding Requirements A proper grounding system is required for safety, equipment protection and electromagnetic noise reduction. There must be a DC ground bond and a chassis equipment grounding connection. See Sections 2.8.5.1 and 2.8.5.2 for equipment ground and DC grounding electrode conductor wire sizing.
  • Page 31: Figure 17: Internal Grounded Neutral Vs. External Grounded Neutral (Internal Neutral Ground Bond Removed)

    INSTALLATION An example of when an external neutral-ground bond may be required is for a system that has an external single pole AC transfer switch with another AC power source such as a generator or utility AC power so they share the same neutral-ground bond at all times.
  • Page 32: Figure 18: Neutral-Ground Jumper Wire

    INSTALLATION 2.8.4.3 Internal Neutral-Ground Bond Jumper Wiring Instructions SureSine Inverter Cover Removal: 1. The cover of the SureSine inverter needs to be removed in order to access the Neutral-Ground Bond Jumper wire terminals. 2. Lay the SureSine inverter on a fl at surface with no wires connected to the inverter.
  • Page 33: Grounding Connections

    INSTALLATION Figure 20: 700 to 2,500 W Internal Neutral-Ground Jumper Replacing the SureSine Inverter Cover: 1. Place the top cover of the inverter with the slotted edges fully inserted into the groves of the chassis. The cover may need to be pushed into place with a good deal of pressure to fully seat it to the chassis.
  • Page 34: Chassis Ground

    INSTALLATION 2.8.5.1 Chassis Ground The SureSine chassis grounding terminal is located on the outside of the case as shown in the DC wiring diagrams in Section 2.8.6. Use copper wire to connect the chassis grounding terminal, and other dead metal, to earth ground.
  • Page 35: Dc Connections

    INSTALLATION 2.8.6 DC Connections DC Connections will vary by site application. The SureSine Inverter can support 12-volt, 24-volt, and 48-volt battery systems. WARNING: HAZARDOUS CURRENT, RISK OF FIRE OR EXPLOSION • Do NOT allow the positive (+) DC cable to touch the Negative (–) DC cable. Allowing these cables to touch can create dangerous current or a possible fi...
  • Page 36: Dc Wiring Procedure

    INSTALLATION 2.8.6.1 Negative Grounding For wiring diagrams showing NEGATIVELY grounded DC Wiring: • For 150 W & 300 W Models: See Figure 21 on page 27 • For 700 W, 1,000 W, 1,250 W & 2,500 W Models: See Figure 23 on page 28 2.8.6.2 Positive Grounding For wiring diagrams showing POSITIVELY grounded DC Wiring:...
  • Page 37: Figure 21: Dc Connections On 150 W & 300 W Models With Negative Grounding

    INSTALLATION Figure 21: DC Connections on 150 W & 300 W Models with Negative Grounding Figure 22: DC Connections on 150 W & 300 W Models with Positive Grounding MS-003650 (Rev 3)
  • Page 38: Figure 23: Dc Connections On 700 W To 2,500 W Models With Negative Grounding

    INSTALLATION Figure 23: DC Connections on 700 W to 2,500 W Models with Negative Grounding Figure 24: DC Connections on 700 W to 2,500 W Models with Positive Grounding MS-003650 (Rev 3)
  • Page 39: Ac Connections

    INSTALLATION 2.8.7 AC Connections WARNING: SHOCK HAZARD This unit is not provided with a GFDI device. This inverter must be used with an external GFDI device as required by the Article 690 of the National Electrical Code for the installation location. CAUTION: EQUIPMENT DAMAGE •...
  • Page 40: Ac Wiring

    INSTALLATION 2.8.8 AC Wiring The 150 W, 300 W, and 700 W Models comes either factory-wired or have the option of being hardwired. The 1,000 W , 1,250 W, and 2,500 W Models require permanent, hardwired connections. Wiring must comply with local regulatory code for the specifi...
  • Page 41: Figure 26: Ac Wiring For 150 W Or 300 W Models

    INSTALLATION Figure 26: AC Wiring for 150 W or 300 W Models Figure 27: AC Wiring for 700 W, 1,000 W, 1,250 W or 2,500 W Models MS-003650 (Rev 3)
  • Page 42: Check Wiring And Power Up

    OPERATION Check Wiring and Power Up 1. Review wiring steps and double-check all wiring and connections. 2. Verify that the battery is wired with correct polarity to the SureSine. 3. Connect the ungrounded battery cable to the ungrounded battery post. WARNING: RISK OF EXPLOSION Connecting the battery to the SureSine with the breaker or disconnect closed will cause a spark at the point of connection.
  • Page 43: Ethernet Jack Leds

    OPERATION Ethernet Jack LEDs In addition to the STATUS and AC Output LEDs, two (2) small LEDs can be found on the Ethernet RJ-45 jack. These LEDs indicate the LAN/WAN network link and activity status as follows: Table 10: Ethernet Jack LED Indications Condition Green LED Yellow LED...
  • Page 44: Protections

    OPERATION Protections 3.4.1 Low Voltage Disconnect (LVD) The SureSine will disconnect AC Output when the battery discharges below the Low Voltage Disconnect (LVD) set point (after a 4-minute delay). AC Output will resume when the battery has recharged to Low Voltage Reconnect (LVR) set point.
  • Page 45: Over Current And Short Circuit Protection (Critical Fault)

    OPERATION 3.4.4 Over Current and Short Circuit Protection (Critical Fault) The SureSine inverter has full electronic protection against AC overloads and short circuits on AC Output. Three (3) automatic retries will be attempted every 10 seconds. If a short circuit still persists after three (3) retries, the fault must be manually cleared in one of the following ways: a.
  • Page 46: Communication Options

    – Bluetooth for wireless communication to a computer or mobile device – EIA-485 for connection to a ModBus™ EIA-485 serial network with other devices in the system which may include other SureSine inverters, Morningstar products, and 3rd-party equipment – (Future Feature Improvement) MS-CAN (Morningstar Communication Area Network) for a wired communication connection to other Morningstar products –...
  • Page 47: Ethernet Security

    COMMUNICATION OPTIONS Figure 30: Communication Port Locations (700 W to 2,500 W Models) ModBus™ and ModBus TCP/IP™ are non-proprietary open standard protocols for serial and Ethernet networks. The ModBus™ specifi cation document is available from the SureSine Product page at https://www.morningstarcorp.com/products/suresine/. The ModBus™...
  • Page 48: Bluetooth

    COMMUNICATION OPTIONS Bluetooth Bluetooth is for connecting a mobile device to the SureSine Inverter. DIP Switch #8 must be enabled (ON) for this feature to function. See Section 2.4 on page 11 for details on enabling this feature. 4.2.1 To Connect the SureSine using Bluetooth 1.
  • Page 49: Suresine Mobile Utility App

    COMMUNICATION OPTIONS 4.2.2 SureSine Mobile Utility App The SureSine inverter has a Mobile Utility App available for monitoring and settings adjustments, and fi rmware updates. This app is designed for Android and Apple devices and connects using Bluetooth. See Section 5.0 for fi...
  • Page 50: Ethernet (For Modbus Tcp/Ip™)

    COMMUNICATION OPTIONS Ethernet (for ModBus TCP/IP™) The Ethernet port provides an interface between the SureSine inverter and a LAN/ WAN network or the Internet. The SureSine supports Ethernet communications using ModBus TCP/IP™ protocol.. The RJ-45 Ethernet jack features two (2) indicator LEDs for connection status and network traffi...
  • Page 51: To Connect To A Local Area Network Or To The Internet

    COMMUNICATION OPTIONS 4.3.1 To Connect to a Local Area Network or to the Internet 1. Insert one end of a CAT5, CAT6, or CAT7 cable into the Ethernet port on the SureSine Inverter. 2. Insert the other end of that cable into a router or Ethernet Switch. 3.
  • Page 52: Eia-485 Device Communication

    The TriStar-MPPT Charge Controller and RSC Serial adapters require an external 12 V power source to enable the EIA-485 communications. The 12 Vdc Auxiliary Power feature of 700 W to 2,500 W models can be used, therefore, to power Morningstar EIA-485 devices in an EIA-485 Network.
  • Page 53: Figure 36: Auxiliary Power Connections (700 W, 1,000 W, 1,250 W Or 2,500 W Models Only)

    COMMUNICATION OPTIONS 3. If using the Auxiliary Power feature of a SureSine 700 W to 2,500 W model to power Morningstar EIA-485 devices in an EIA-485 Network: • connect the Ground (GND) terminal wire from the EIA-485 device(s) to the –12 V terminal of the SureSine inverter •...
  • Page 54: Usb Port

    COMMUNICATION OPTIONS USB Port A USB port is available on the 700 W, 1,000 W, 1,250 W, and 2,500 W models. The USB port can be used for ModBus™ communications. This port requires a USB-A plug. If connecting a computer, a USB-to-USB cable is required. Figure 37: USB Port Locations Note: USB-B and USB-C are backwards compatible with USB-A.
  • Page 55: Ms-Can (Future Feature)

    COMMUNICATION OPTIONS MS-CAN (Future Feature) MS-CAN is for communicating with other Morningstar components within the network. This feature is not available at this time. Check the Morningstar website (www.morningstarcorp.com) for updates. Note: The Morningstar component must be MS-CAN enabled. 4.6.1 To Connect the SureSine to another Morningstar Device 1.
  • Page 56: To Connect The Suresine To A Morningstar Network

    Morningstar device in the network. 5. Insert a 120 Ohm CANBUS terminator resister into the MS-CAN OUT port on the fi nal device, if no other Morningstar devices are to be connected. Figure 39: Communication Using MS-CAN with Multiple Devices...
  • Page 57: Firmware Update Procedure

    FIRMWARE UPDATE PROCEDURE FIRMWARE UPDATE PROCEDURE To update the SureSine fi rmware, use the SureSine Utility Mobile App to activate the fi rmware update. The SureSine Mobile Utility App includes the latest version of the SureSine fi rmware when installing or updating the app. Select the fi...
  • Page 58: Annual Inspection

    INSPECTION AND MAINTENANCE 6.2.3 Annual Inspection Perform the following tasks on an annual basis. 1. Re-tighten power terminal connections to specifi ed torque values to avoid resistive connections. 2. Check all system fuses. 3. Inspect for broken wires, frayed wire insulation, and corroded conductors.
  • Page 59: Figure 41: Replacing The Fuses

    INSPECTION AND MAINTENANCE 6. Remove and inspect each of the fuses. • Blown fuses will have a damaged fi lament. 7. Replace fuses as needed. • Replacement fuses must be quick-blow automotive type fuses only and should be rated for 40 A. •...
  • Page 60: Speci Cations

    SPECIFICATIONS SPECIFICATIONS SureSine Model Numbers Figure 41 defi nes the SureSine Model numbers and how they relate to the product specifi cations. Figure 42: SureSine Product Key Use Figure 42 to choose the SureSine model number from the list in Table 11. •...
  • Page 61 SPECIFICATIONS Table 11: SureSine Model Numbers Battery Continuous Power in Watts Voltage 150 W 300 W 700 W 1,000 W 1,250 W 2,500 W SI-150-24-120- SI-300-24-120- SI-700-24-120- 60-B 60-B 60-B SI-150-24-120- SI-300-24-120- SI-700-24-120- SI-1000-24-120- SI-1250-24-120- 60-HW 60-HW 60-HW 60-HW 60-HW SI-150-24-127- SI-300-24-127- 60-HW...
  • Page 62: Technical Specifi Cations

    SPECIFICATIONS Technical Specifi cations The following tables provides the specifi cations for the SureSine Inverter Industrial Line. Table 12: Speci cations for the SureSine 150 and SureSine 300 Model Speci cation SureSine 150 SureSine 300 Rated Battery Voltage 12 V 24 V...
  • Page 63: Table 13: Specifi Cations For The Suresine 700 And Suresine 1000

    SPECIFICATIONS Table 13: Speci cations for the SureSine 700 and SureSine 1000 Model Speci cation SureSine 700 SureSine 1000 48 V Rated Battery Voltage 12 V 24 V 48 V 24 V 40.0 to 20.0 to Battery Operational Voltage Range 10.0 to 16.5 V 20.0 to 33.0 V 40.0 to 66.0 V...
  • Page 64: Table 14: Specifi Cations For The Suresine 1250 And Suresine 2500

    SPECIFICATIONS Table 14: Speci cations for the SureSine 1250 and SureSine 2500 Model Speci cation SureSine 1250 SureSine 2500 Rated Battery Voltage 24 V 48 V 48 V Battery Operational Voltage Range 20.0 to 33.0 V 40.0 to 66.0 V 40.0 to 66.0 V Maximum Continuous DC Input Current 68 A...
  • Page 65: Table 15: Common Specifi Cations For All Models

    SPECIFICATIONS Table 15: Common Speci cations for all Models Features Waveform - Pure Sine Wave Galvanically Isolated Cooling - Fanless natural convection Electronic Protections AC Output Short Circuit AC Output Overload High Heat Sink Temperature - Load Disconnect Battery Reverse Polarity - Replaceable internal fuse Heat Sink Temperature: Warning 90°C;...
  • Page 66: Appendix A: Dc Battery Wire Sizing

    SPECIFICATIONS APPENDIX A: DC BATTERY WIRE SIZING Wire sizing requirements are based on the ampacity (or current carrying capacity) of conductors. The NEC includes Ampacity Tables which are used to determine the ampacity for a given wire size as indicated in Section 310.15. The battery wire ampacity must be greater than or equal to 125% of maximum continuous battery current of the SureSine inverter.
  • Page 67: Table 18: Minimum Battery Wire Sizes - 90°C Rated Stranded Copper

    DC BATTERY WIRE SIZING Table 17: Minimum Battery Wire Sizes - 75°C Rated Stranded Copper Wire Size in a raceway, Wire Size in Free Air Metric Wire Max Battery Model cable, or earth (NOTE: 1) (NOTE 2) Size mm Continuous (NOTE 3) Current Watts...
  • Page 68: Table 19: Celsius-To-Fahrenheit Conversions

    DC BATTERY WIRE SIZING Table 19: Celsius-to-Fahrenheit Conversions °Celsius °Fahrenheit MS-003650 (Rev 3 )
  • Page 69: Appendix B: Dc Voltage Drop Tables

    DC VOLTAGE DROP TABLES APPENDIX B: DC VOLTAGE DROP TABLES Good system design generally requires large conductor wires that limit voltage drop losses to 2% or less. Table 20 and Table 21 provide wire sizing for a maximum of 2% voltage drop.
  • Page 70: Voltage Drop Chart For 75°C Or 90ºc Stranded Copper Wire (Meters), 12 Volt System

    DC VOLTAGE DROP TABLES B.2 Voltage Drop Chart for 75°C or 90ºC Stranded Copper Wire (Meters), 12 Volt System For 24- or 48-volt systems, multiply the values in Table 21 by: • 2 for 24-volt systems • 4 for 48-volt systems Table 21: Maximum 1-way Distance (Meters), 2% Voltage Drop Chart for 75°C or 90ºC Stranded Copper Wire, 12-Volt System Wire Amps...
  • Page 71: Appendix C: Warranty

    Return Material Authorization (RMA) number. An RMA number must be issued by Morningstar prior to return of any unit(s) under this warranty. Required RMA information: (A) purchase location - business or company name - and date...
  • Page 72 ANY AND ALL IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. No Morningstar distributor, agent or employee is authorized to make any modifi cation or extension to this warranty. MORNINGSTAR IS NOT RESPONSIBLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DOWN-TIME, GOODWILL OR DAMAGE TO EQUIPMENT OR PROPERTY.
  • Page 73: Appendix D: Revision History

    REVISION HISTORY APPENDIX D: REVISION HISTORY Date Reason for Revision Revision October 2022 Original Publication December 2022 Modifi ed a Wire and Cable Safety WARNING: SHOCK HAZARD involving the Neutral-ground Bond. Added 3rd bullet. Replaced Section 2.8.4, Grounding and Bonding Requirements, with revised text.
  • Page 74 REVISION HISTORY Date Reason for Revision Revision October 2023 Certifi cations Page: Added the following " Complies with UL 458:2015 Ed.6+R:11 Jan2021" Revised Figure 1: • Change text “700 W Models” to “700 W (24 V & 48 V) Models” •...
  • Page 75 Index Index DC System Ground ........24 DC Voltage Drop ........... 59 DC Voltage Requirements ....... 7 DC Wiring ............26 Dimensions AC circuit breaker/fuse ratings ...... 30 150 W & 300 W Models ......5, 53 AC Connections ..........29 700 W to 2,500 W Models ......
  • Page 76 Index Maintenance ..........47 Terminal Torque ..........16 Modbus ID ............. 41 Tools Required ..........7 Model numbers ..........50 Mounting ............8 Orientation ............ 8 USB Port ............44 MS-CAN ..........1, 36, 45 Voltage Drop ........... 59, 60 Negative Grounding ........
  • Page 77 MORNINGSTAR World’s Leading Solar Controllers & Inverters Notes: MS-003650...
  • Page 78 MORNINGSTAR World’s Leading Solar Controllers & Inverters MS-003650 Rev 3 © 2023 Morningstar Corporation. All rights reserved.

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