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NLR - OutBack Power Radian GS4048A 4000W Pure Sine Wave Inverter


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The Radian Series GS8048A and GS4048A Grid/Hybrid™ (full-flexibility grid-interactive/off-grid) Inverter/Charger is engineered toward one goal: making system design and installation easier and faster in grid-interactive and comprehensive off-grid applications. The new Radian Series inherit the hallmark features of the original design, including: dual AC inputs for grid/generator flexibility with no external switching required, unparalleled surge capability and operational stability, easy field upgradeability and stacking capability for large system scaling, simplified system commissioning through a powerful, easy-to-use configuration wizard, and multi-mode operational flexibility.

In addition, both models have a new Advanced Battery Charging (ABC) profile option to support leading-edge battery technologies such as Lithium-Ion and others, and enhanced diagnostics for improved performance. And both incorporate OutBack’s GridZero
technology, a superior level of intelligence in energy management for self-generation and self-consumption programs, providing precise balancing between using stored energy, solar and utility power, blending-in the latter to overcome surges and load spikes when
needed. GridZero operation makes it possible for a smaller inverter and battery system to perform like a much larger one when required, putting stored and renewable energy sources to work and minimizing grid dependence. GridZero technology make the new Radians ideal for use in complex utility environments such as California and Hawaii.

The GS8048A and GS4048A are certified to UL1741 for US applications, and CSA C22.2 No. 107.1 for Canada, and is IEC 62109-1 certified to meet the most stringent worldwide PV safety and emission standards.

This product is for selected North, Central and Latin American markets.

Nominal DC Input Voltage 48 VDC 48VDC
Continuous Output Power at 25 °C 8000 VA 4000 VA 
AC Output Voltage/Frequency 120/240VAC, 60Hz (50Hz) 120/240VAC, 60Hz (50Hz)
Continuous AC Output Current at 25 °C 33.3AAC @ 240VAC 16.7AAC
Idle Consumption - Invert mode, no load 34 Watts 34W
Typical Efficiency 93% 92.5% 
Harmonic Distortion Maximum Total Harmonic: <5%
Maximum Single Voltage Harmonic: <2%
Maximum Total Harmonic: <5%
Maximum Single Voltage Harmonic: <2% 
Output Voltage Regulation ± 2% ± 2% 
Maximum Output Current 1 ms Peak: 100 AAC @ 240VAC, 200AAC @ 120VAC
1 ms RMS: 70.7 AAC @ 240VAC
1 ms Peak: 50AAC @ 240VAC
1 ms RMS: 35.35 AAC @ 240VAC
Overload Capability 100 ms Surge: 16.97 kVA
5 seconds: 12 kVA
30 minutes: 9 kVA
100 ms Surge: 8.5 kVA
5 seconds: 6.0 kVA
30 minutes: 4.5 kVA 
Maximum AC Input Current  50AAC @ 240VAC 50AAC 
AC Input Voltage Range (Adjustable) (L1 or L2) 70 to 280VAC (L1-N or L2-N) 85 to 140VAC 
AC Input Frequency Range 45 to 55Hz @ 50Hz (55 to 66Hz @ 60Hz) 45 to 55Hz @ 50Hz (54 to 66Hz @ 60Hz)
Grid-Interactive Voltage Range (L1-N or L2-N) 106 to 132VAC (L1-N, L2-N) 108 to 132VAC, default
Grid-Interactive Frequency Range 59.3 to 60.5Hz 59.3 to 60.5Hz
DC Input Voltage Range 40 to 64VDC 40 to 64VDC
Continuous Battery Charge Output 115.5 ADC 57.5 ADC 
Temperature Range Rated: -20 to 50°C (power derated above 25°C)
Maximum: -40 to 60°C*
Rated: -20 to 50°C (power derated above 25°C)
Maximum: -40 to 60°C* 
Weight Unit: 125 lbs (56.7 kg)
Shipping: 140 lbs (63.5 kg)
Unit: 82 lbs (37.2 kg)
Shipping: 94 lbs (42.6 kg)
Dimensions (HxWxD) Unit: 28 x 16 x 8.7” (71.1 x 40.6 x 22.1 cm)
Shipping: 34.5 x 21 x 14.5” (87.6 x 53.3 x 36.8 cm)
Unit: 28 x 16 x 8.7” (71.1 x 40.6 x 22.1 cm)
Shipping: 34.5 x 21 x 14.5” (87.6 x 53.3 x 36.8 cm)
Accessory Ports Remote Temperature Sensor and
MATE3/HUB Communications
Remote Temperature Sensor and
MATE3/HUB Communications 
Non-Volatile Memory Yes Yes 
Field Upgradable Firmware Yes  Yes
Chassis Type Vented  Vented 
Certifications Listed to UL1741, CE, CSA C22.2 No. 107.1, IEC
62109-1, AS4777.2, AS4777.3, EN61000-6-1,
EN61000-6-3, EN61000-3-2, EN61000-3-3, AS3100, RoHS compliant per directive 2011/65/EU
Listed to UL1741, CE, IEC-62109-1 ETL, CSA C22.2 No. 107.1, RoHS compliant per directive 2011/65/EU, FCC Class B, EN61000-6-1, EN61000-6-3, EN61000-3-2, EN61000-3-3
Warranty Standard 5-Year Warranty Standard 5-Year Warranty

This product is shipped from one of our warehouses in Northern California. Orders placed after 12 p.m. will typically ship the following business day. Click here to see an estimate of our delivery times with standard FedEx Ground shipping.

Returns & Replacements
Regularly stocked, non-special-ordered, and non-custom-built items can be returned for a refund within 30 days of receipt if unused and in original packaging. Returns of solar panels, inverters or other large ticket items will incur a re-stocking fee of up to 30%. Freight shipping is non-refundable.

For more, please read our full return policy.

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