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Outback Power Systems GS8048 - page 1
Radian Series Invert er/Charge r GS8048 Operator ’s Manual ...
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Outback Power Systems GS8048 - page 2
About OutBack Power Technologies OutBack Power Technologies is a leader in adva nced energy conversion technology. Outback products include true sine wave inverter/chargers, maximum power point tracking charge controllers, and system communication components, as well as circuit breakers, accessories, and assembled systems. Contact Information Telep ...
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Outback Power Systems GS8048 - page 3
900-0020-01-00 R ev A 1 Important Safety Instructions READ AND SAVE THESE INSTRUCTIONS! This manual contains important safety instructions for the Radian Series Inverter/Charger. Read all instructions and cautionary markings on the inverter and on any acce ssories or additional equipment included in the installation. Failure to adhere to these inst ...
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Outback Power Systems GS8048 - page 4
Important Safety Instructions 2 900-0020-01-00 R ev A Table 1 Terms and Definitions Term Definition DVM Digital Voltmeter ETL Electrical Testing Laboratories; short for the company ETL Semko; refe rs to a certification issued by ETL to OutBack products indicating th at they meet certain UL standards FCC Federal Communications Commission GND Ground; ...
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Outback Power Systems GS8048 - page 5
900-0020-01-00 R ev A 3 Table of Contents Important Safety Instructions ........................................................................ 1 Audience ................................................................................................................................................................................. 1 Symbols Used . ...
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Outback Power Systems GS8048 - page 6
Table of Contents 4 900-0020-01-00 R ev A Warning Messages ............................................................................................................... ............................................. 40 Disconnect Messages ............................................................................................................ . ...
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Outback Power Systems GS8048 - page 7
900-0020-01-00 Rev A 5 Introd uction Welcome to OutBack Power Technologies Thank you for purchasing t he OutBack Radian Series Inverter/Charg er. This product offers a complete power conversion system bet ween batteries and AC power. It can provide bac kup power, sell power back to the utility grid or provide complete st and-alone off-grid service. ...
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Outback Power Systems GS8048 - page 8
Introduction 6 900-0020-01-00 Rev A MATE3 System Display and Controller The Radian inverter/charger has n o external controls. It can operat e normally without an external control or interface. Basic modes and settings are pre-programmed at the factory. (See page 47 for default settings.) The Radian inverter has no display or LED indicators. It is ...
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Outback Power Systems GS8048 - page 9
900-0020-01-00 R ev A 7 Commissioning Functional Test WARNING: Shock Hazard and Equipment Damage It is necessary to remove the cover of the Radian inver ter to perform these tests. The components are close together and carry hazardous voltages. Use appropria te care to avoid the risk of electric shock or equipment damage. Pre-startup Procedures 1. ...
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Outback Power Systems GS8048 - page 10
Commissioning 8 900-0020-01-00 R ev A After programming (if any) is completed, perform the following steps: 1. If other inverters are on the system, use a DVM to verify correct voltage fr om the L1 OUT terminal on one inverter to the next. When stacked in pa rallel, the wires from one inverter to the next should read 0 Vac (although individually th ...
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Outback Power Systems GS8048 - page 11
900-0020-01-00 R ev A 9 Operation Input Modes The Radian inverter has two sets of input co nnections for multiple AC sources. (See the Radian Series Inverter/Charger Installation Manual for more information.) With the MATE3, each input can be programmed to a particular operating mode. Six mo des are available, each with certain advantages which mak ...
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Outback Power Systems GS8048 - page 12
Operation 10 900-0020-01-00 R ev A NOTES : The Support, Offset, and gri d-interactive functions of the Radian are unavailable in this mode. Any AC fluctuations that are accepted by the inverter will be transferred to the output. The loads will be exposed to these fluctuations. It may not be advisa ble to install senstive loads under these c ...
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Outback Power Systems GS8048 - page 13
Operation 900-0020-01-00 R ev A 11 Grid Tied IMPORTANT: Selling power to the utility company re quires the authori zation of the local electric jurisdiction. The method used by the local utility company to accommodate this will depend on their po licies on this issue. Some may pay for power sold; others may is sue credit. Some policies may prohibit ...
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Outback Power Systems GS8048 - page 14
Operation 12 900-0020-01-00 R ev A The grid-interactive functio n can only operate while the util ity grid power is stable and within specific limits. If the AC voltage or frequency vary outside these limi ts, the inverter will stop selling. If the inverter stops selling, the MATE3 will show the reason. Sell Status messages are listed on pa ...
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Outback Power Systems GS8048 - page 15
Operation 900-0020-01-00 R ev A 13 Backup This mode is intended for systems that have utility grid available as the primary AC source. This source will pass through the Radian inverter’s tran sfer circuit and will power the loads unless utility power is lost. If utility grid power is lost, then th e Radian inverter will supply energy to the loads ...
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Outback Power Systems GS8048 - page 16
Operation 14 900-0020-01-00 R ev A will then enter Silent (see page 22) and continue re peating this part of the charging cycle until it disconnects from the utility grid. If the reconnection was triggered by the Rebulk volt age setting, the inverter will require the charger to pass through the entire ch arge cycle, including the Absorb Voltage , A ...
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Outback Power Systems GS8048 - page 17
Operation 900-0020-01-00 R ev A 15 Functions The items in this section are states of operation co mmon to all Radian inverter s. These functions can be used in most or all of the input modes describe d in the preceding section. Some can be manually selected or enabled; others are automatic. All items identified as settable or adjustable have set po ...
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Outback Power Systems GS8048 - page 18
Operation 16 900-0020-01-00 R ev A Search An automated search circuit is available to minimi ze the power draw when no loads are present. When enabled, the inverter does not always deliver full output. The output is reduced to brief pulses with a delay between them. These pulses are sent down the output lines to see if a resistance is present. Basi ...
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Outback Power Systems GS8048 - page 19
Operation 900-0020-01-00 R ev A 17 AC Current Settings The AC current settings control the amount of curren t that the inverter draws from the source(s). The amount of current is controlled by the grid or ge nerator limit settings. These settings should be adjusted to match the size of the input circuit breaker. In the MATE3 system display, if the ...
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Outback Power Systems GS8048 - page 20
Operation 18 900-0020-01-00 R ev A Generator A generator should be sized to provide enough powe r for all inverters, both for loads and for battery charging. It is usually recommended that the generator be sized at twice the wattage of the inverter system. Many generators may not be able to maintain AC volt age or frequency for long periods of t im ...
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Outback Power Systems GS8048 - page 21
Operation 900-0020-01-00 R ev A 19 Offset This function is designed to use excess battery ener gy to power the loads, even when an AC source is present. This allows the system to take advantage of renewable ener gy sources, in effect “offsetting” dependence on the AC source. When a renewable source of energy raises the batteries above a designa ...
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Outback Power Systems GS8048 - page 22
Operation 20 900-0020-01-00 R ev A Battery Charging IMPORTANT: Battery charger settings need to be correct for a given battery type. Always follow battery manufacturer recommendations. Making incorrect settings, or leaving them at factory default settings, may cause the batteries to be un dercharged or overcharged. The inverter uses a “three-stag ...
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Outback Power Systems GS8048 - page 23
Operation 900-0020-01-00 R ev A 21 Figure 3 Charging Stages Over Time 1 Figure 4 Charging Stages Over Time 1 (Generator mode) well, even if their timers have not expired. The remaining time for the slaves will be retained in the timer for each inverter. The Absorption timer does not reset to zero when AC power is disco nnected or reconnected. It on ...
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Outback Power Systems GS8048 - page 24
Operation 22 900-0020-01-00 R ev A This setting is typically lower than the Float voltage setting. Although the batteries are not discharged, they are maintained at a somewhat lo wer voltage so that the maximum amount of power can be exported. It is recommend ed that this item be set at the batteries’ natu ral rest voltage. In the Grid Tied input ...
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Outback Power Systems GS8048 - page 25
Operation 900-0020-01-00 R ev A 23 The unit will continue cycling between Float and Sile nt for as long as the AC source is present. However, if excess DC power is available and the battery voltage rises above the Sell Voltage set point, the unit can resume Offset ac tivity as described on page 21. The unit can only enter Offset when none of the ti ...
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Outback Power Systems GS8048 - page 26
Operation 24 900-0020-01-00 R ev A The Absorption timer continues this behavior even if the charger is still on. For example, if the charger is in Float stage and there is a significant battery drain, the charger may not be able to maintain the batteries at the Float voltage. Once the batteries fall below the Rebulk point, the Absorption timer will ...
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Outback Power Systems GS8048 - page 27
Operation 900-0020-01-00 R ev A 25 Conversely, when batteries are warmer than room temperature, the electrolyte reaction is somewhat hyper-reactive. It takes less energy than usual to charge them. Delivering the full (room-temperature) amount of energy would overcharge th em and can be hard on them over time. The Radian inverter, when equipped with ...
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Outback Power Systems GS8048 - page 28
Operation 26 900-0020-01-00 Rev A Multiple-Inv erter Installations (Stacking) Multiple inverters in a single syst em can support larger loads than a single inver ter can handle. Installing inverters in this conf iguration is called “stacking”. Stacking inverters d oes not refer to physically placing one on top of another. It refers to how they ...
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Outback Power Systems GS8048 - page 29
Operation 900-0020-01-00 R ev A 27 In parallel stacking, two or more inverters are stac ke d to create a single, common 120/240 Vac bus. The master provides the prim ary output. The slaves ar e connected to the same output and assist the master. The slave inverters can be programmed to activate on demand, reducing idle-power consumption . T ...
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Outback Power Systems GS8048 - page 30
Operation 28 900-0020-01-00 R ev A Power Save Levels Each inverter consumes approximat ely 30 watts of idle power while it remains on, even if it is not actively inverting or charging. The Power Save fu nction allows the option to put some or all slave inverters into a quiescent state known as Silent mode. This mode minimizes the inverter’s idle ...
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Outback Power Systems GS8048 - page 31
Operation 900-0020-01-00 R ev A 29 Auxiliary Terminals The Radian inverter has two sets of terminals which can respond to different criteria and control many functions. The 12V AUX terminals provide a 12 Vdc ou tput that can deliver up to 0.7 Adc to control external loads. The RELAY AUX terminals are “dry” re lay contacts with no voltage. Each ...
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Outback Power Systems GS8048 - page 32
Operation 30 900-0020-01-00 R ev A Gen Alert is used as a controller fo r an AC generator with a remote start feature, although it has limited functionality. (The generator rechar g es batteries using the inverter’s ba ttery charger.) When the battery voltage falls to a low set point for a settable delay, the AUX output is acti vated. The AUX ...
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Outback Power Systems GS8048 - page 33
Operation 900-0020-01-00 R ev A 31 Source Status enables the AUX output whenever the inverte r acce pts an AC source. It can activate a light or alarm to show that the utility grid is present or that a generato r has started. Alternatel y, it could be used to show that the source has disconnected . This function does not have settable param ...
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Outback Power Systems GS8048 - page 34
Operation 32 900-0020-01-00 R ev A System Display-Based Functions Advanced Generator Start (AGS) As noted under the Gen Alert feature (see page 31), the system is capable of starting a generator. Gen Alert simply starts and stop s the generator based on battery voltage. For mo re advanced control, the inverter system can use the Advanced Gene rator ...
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Outback Power Systems GS8048 - page 35
900-0020-01-00 R ev A 33 Troubleshooting Basic Troubleshooting Table 2 is organized in order of commo n symptoms, with a series of possible causes. Each possible cause also shows possib le troubleshooting reme dies, including system display checks where appropriate. Figure 8 AC Test Points Table 2 Troubleshooting Symptom Possible Cause Possible Rem ...
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Outback Power Systems GS8048 - page 36
Troubleshooting 34 900-0020-01-00 R ev A Table 2 Troubleshooting Symptom Possible Cause Possible Remedy No AC input. Check the AC voltage on the inverter’s input test points. (See page 33.) If not present, the prob lem is external. If present, the inverter could be damaged. Contact OutBack Technical Support (see inside front cover of this manual) ...
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Outback Power Systems GS8048 - page 37
Troubleshooting 900-0020-01-00 R ev A 35 Table 2 Troubleshooting Symptom Possible Cause Possible Remedy Charge complete or nearly complete. Check the DC voltage and charging stage using the MATE3, if present. Confirm with DC voltmeter. MATE3’s DC meter reads significantly higher than actual battery voltage. Check the DC voltage on the inverter’ ...
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Outback Power Systems GS8048 - page 38
Troubleshooting 36 900-0020-01-00 R ev A Table 2 Troubleshooting Symptom Possible Cause Possible Remedy Reduced power sold to the utility grid. AC source voltage is driven high when the inverter sells large amounts of power. When the inverter senses a rise in grid voltage while selling, it reduces the sell current, to avoid forcing the voltage to u ...
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Outback Power Systems GS8048 - page 39
Troubleshooting 900-0020-01-00 R ev A 37 Table 2 Troubleshooting Symptom Possible Cause Possible Remedy Inverter output is being fed with an external AC source that is out of phase. Disconnect AC output wires. Turn the inverter off and then on. If the problem clears, reconnect th e AC output wires. If the problem recurs when reconnected, an externa ...
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Outback Power Systems GS8048 - page 40
Troubleshooting 38 900-0020-01-00 R ev A NOTES: ...
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Outback Power Systems GS8048 - page 41
Troubleshooting 900-0020-01-00 R ev A 39 Error Messages An Error is caused by a critical fault. In most cases when this occurs, the unit will shut down. The MATE3 system display will show an Event and a specific Error message. This screen is viewed using the MATE3 Home screen’s soft keys. (See the MATE3 manual for more instructions.) One or more ...
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Outback Power Systems GS8048 - page 42
Troubleshooting 40 900-0020-01-00 R ev A Warning Messages A Warning message is caused by a non-critical fault. When this occurs, the unit will not shut down, but the MATE3 system display will show an Event and a specific Warning message. This screen is viewed using the MATE3 Home screen’s soft keys. (See th e MATE3 manual for more instructions.) ...
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Outback Power Systems GS8048 - page 43
Troubleshooting 900-0020-01-00 R ev A 41 Table 4 Warning Troubleshooting Message Definition Possible Remedy Fan Failure The inverter’s internal cooling fan is not operating properly. Lack of cooling may result in derated inverter output wattage. Turn the battery disconnect off, and then on, to determine if the fan self-tests. After this test, con ...
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Outback Power Systems GS8048 - page 44
Troubleshooting 42 900-0020-01-00 R ev A Disconnect Messages Disconnect messages explain the reason that the inverter rejected an AC source. The unit returns to inverting mode if turned on. This screen is viewed using the AC INPUT hot key on the MATE3. (See the MATE3 manual for more instructions.) One or more messages will display Y (yes). If a mes ...
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Outback Power Systems GS8048 - page 45
Troubleshooting 900-0020-01-00 R ev A 43 Sell Status Sell Status messages desc ribe conditions relating to th e inverter’s grid-interactive mode. This screen is viewed using the MATE3 Home screen’s soft keys. (See the MATE3 manual for more instructions.) One or more messages will display Y (yes). If a message says N (no), it is not the cause of ...
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Outback Power Systems GS8048 - page 46
Troubleshooting 44 900-0020-01-00 R ev A NOTES: ...
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Outback Power Systems GS8048 - page 47
900-0020-01-00 R ev A 45 Specifications Specifications for Model GS8048 Table 7 Electrical Specifications for Model GS8048 Specification Value Nominal DC Input Voltage 48 Vdc Continuous Output Power at 25°C 8000 VA AC Output Voltage 120/240 Vac AC Output Frequency 60 hz Continuous AC Output Current at 25°C 33.3 Aac at 240 Vac Waveform True Sinewa ...
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Outback Power Systems GS8048 - page 48
Specifications 46 900-0020-01-00 R ev A Environmental Specifications Table 9 Environmental Specifications for All Models Specification Value Rated Temperature Range (me ets all specifications) 32°F to 122°F (0°C to 50°C) Operational Temperature Range (functions, b ut does not ne cessarily m eet all specifications) –40°F to 140°F (–40°C t ...
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Outback Power Systems GS8048 - page 49
Specifications 900-0020-01-00 R ev A 47 The acceptance ranges are selected using the sy stem display. In the MATE3, the options are IEEE and user. The IEEE option allows a range of 108 – 1 32 Vac at 59.3 – 60.5 Hz The user option does not ha ve a fixed voltage setting. It follows the upper and lower limit settings in the Grid AC Input M ...
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Outback Power Systems GS8048 - page 50
Specifications 48 900-0020-01-00 R ev A Table 11 GS8048 Inverter Settings Field Item Default Minimum Maximum Aux Control Off Off, Auto or On Aux Mode Vent Fan Load Shed, Gen Alert, Faul t, Vent Fan, Cool Fan, DC Divert, IEEE, Source Status, AC Divert (Load Shed) ON: Batt > 56 Vdc 40 Vdc 72 Vdc (Load Shed ON) Delay 30 Secs 6 Secs 1500 Secs (Load ...
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Outback Power Systems GS8048 - page 51
900-0020-01-00 R ev A 49 Product Registration The purchase of an OutBack Power Technologies prod uct is an important investment. Registering the products will help us maintain the standard of exce llence you expect from us in terms of performance, quality and reliability. Please take a moment to register and provid e us with some important informat ...
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Outback Power Systems GS8048 - page 52
Product Registration 50 900-0020-01-00 R ev A INSTALLATION INFORMATION System Install/Commission Date System Array Size System Array Nominal Voltage Type of PV Modules System Battery Bank Size (Amp-Hours) Brand and Model of Batteries Does this system include an auxiliary AC generator? If yes, please specify b ran d and model of generator INSTALLER ...
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Outback Power Systems GS8048 - page 53
900-0020-01-00 R ev A 51 Warranty 5-Year Limited Warranty for Radian Products OutBack Power Technologies, Inc. (“OutBack”) provid es a five-year (5) limited warranty (“Warranty”) against defects in materials and workm anship for its Ra dian Series products (“Product”) if installed in fixed location applications. The term of this Warrant ...
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Outback Power Systems GS8048 - page 54
Warranty 52 900-0020-01-00 R ev A How to Arrange for Warranty Service During the warranty period beginning on the invoic e date, OutBack Power Technologies will repair or replace products covered under this limited warranty that are returned to OutBack Power Technologies’ facility or to an OutBack Power Tec hnologies authorized repair facility, o ...
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Outback Power Systems GS8048 - page 55
Warranty 900-0020-01-00 R ev A 53 Returning Product to OutBack After receiving the RMA number, the customer must pack the Product(s) authorized for return, along with a copy of the original purchase invoice and warranty certificate, in the original Product shipping container(s) or packaging providing equivalent or rea sonable protection . The RMA n ...
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Outback Power Systems GS8048 - page 56
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Outback Power Systems GS8048 - page 57
900-0020-01-00 R ev A 55 Index 1 10-year Warra nty ...............................................................50 12V AUX ................................................................................30 A Absorption Stag e...............................................................21 AC Drop ................................................. ...
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Outback Power Systems GS8048 - page 58
Index 56 900-0020-01-00 R ev A I IEEE .................................................................................... 2, 46 Input Modes ........................................7, 11, 17, 20 , 22, 23 Input Prio rities ....................................................................17 Inverting ............................................... ...
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Outback Power Systems GS8048 - page 59
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Outback Power Systems GS8048 - page 60
North America: 5917 – 195 th St NE, #7 Arlington, WA 98223 USA +1.360.4 35.6030 900-0020-01- 00 Rev A ...
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