5 June 2020
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Outback Vented 3500W Battery Backup Inverter 24VDC/120VAC
Price $2,569.00
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Availability: Available for Order

                    *Delivery times may be affected

Vented Outback 3500W Battery Backup Inverter is designed  to handle high ambient temperatures while providing automatic grid connectivity and reliable back up power. Model# GTFX3524

The OutBack G-Series inverters are the grid-interactive versions in OutBack’s FX inverter line. Available in either sealed (GTFX) or vented (GVFX) models, these inverters allow you to sell solar, wind, and/or hydro power back to the utility grid. If the utility power goes down, the inverter will automatically switch to battery power and your renewable energy source(s) to run your critical loads. The inverter can be set up so that either utility power, or your renewable source, can be used to recharge the battery bank after an outage. AC power is seamlessly switched between utility and battery power through the inverter’s built-in 60A transfer switch.

With the OutBack grid-interactive system, backup AC power is made available 24 hours a day in the event of a utility outage, providing reliable power and peace of mind. At night, the inverter's automatic power save mode ensures that energy is not wasted by needlessly charging your batteries from the utility grid. Daily energy production efficiency is within a few percentage points of battery less grid-inverter systems (depending on the condition of the battery bank). Up to two grid-interactive FXs can be combined and wired or “stacked” for 120/240V output. The Grid-Tie FX Series Inverter/Chargers can be stacked in Classic Series only, which is limited to two grid-interactive FXs.

The X-240 autotransformer (FW-X240) can be used to step-up the AC output of a single Grid-Interactive FX system from 120VAC to 240VAC. Note that the FW-X240 Auto Transformer cannot be used for stacking with a Grid-Interactive FX system.

These inverters are not recommended for exclusive off-grid use. For exclusively off-grid units see our off-grid inverter models.

Up to ten inverters can be connected together to provide up to 36 kW of continuous power capacity with the use of the HUB and the MATE controller. The inverter’s powerful battery charger operates in five stages: BULK (constant current output), ABSORB (constant voltage output), FLOAT (reduced voltage output), SILENT (no charger output) and EQUALIZE (constant voltage regulation overcharging). Charge time in each stage is adjustable to provide control and to maximize the performance of the charger and battery system. The MATE controller is required to program the inverter.

ETL Listed to UL 1741. Standard 2-year warranty with an available 5-year extended warranty.

Model #: GTFX3524


Sealed Models Vented Models
GTFX2524 GTFX3048 GVFX3524 GVFX3648
Nominal DC Input Voltage 24 VDC 48 VDC 24 VDC 48 VDC
Continuous Power Rating at 25° C 2500 VA 3000 VA 3500 VA 3600 VA
AC Voltage/Frequency 120 VAC 60 Hz 120 VAC 60 Hz 120 VAC 60 Hz 120 VAC 60 Hz
Continuous AC RMS Output at 25° C 20.8 amps AC 25.0 amps AC 29.2 amps AC 30.0 amps AC
Full Idle Power ≈ 20 Watts ≈ 20 Watts ≈ 20 Watts ≈ 20 Watts
Search ≈ 6 Watts ≈ 6 Watts ≈ 6 Watts ≈ 6 Watts
Typical Efficiency 92% 93% 92% 93%
Inverting Total Harmonic Distortion 2% 2% 2% 2%
Selling 5% 5% 5% 5%
Output Voltage Regulation ± 2% ± 2% ± 2% ± 2%
Peak Maximum Output Current 70 amps AC 70 amps AC 70 amps AC 70 amps AC
RMS 50 amps AC 50 amps AC 50 amps AC 50 amps AC
Surge AC Overload Capability 6000 VA 6000 VA 6000 VA 6000 VA
5 Second 4800 VA 4800 VA 5000 VA 5000 VA
30 Minutes 3200 VA 3200 VA 4000 VA 4000 VA
AC Input Current Maximum 60 amps AC 60 amps AC 60 amps AC 60 amps AC
AC Input Voltage Range (MATE Adjustable) 80 to 150 VAC 80 to 150 VAC 80 to 150 VAC 80 to 150 VAC
AC Input Frequency Range 58 to 62 Hz 58 to 62 Hz 58 to 62 Hz 58 to 62 Hz
DC Input Range 21.0 to 34.0 VDC 42.0 to 68.0 VDC 21.0 to 34.0 VDC 42.0 to 68.0 VDC
Continuous Battery Charge Output 55 amps DC 35 amps DC 85 amps DC 45 amps DC
Warranty Standard 2 year / Optional 5 year Standard 2 year / Optional 5 year
Unit Weight 56 lbs (25 kg) 54 lbs (25 kg)
Shipping 67 lbs (30 kg) 62.2 lbs (28 kg)
Unit Dimensions (H x W x L) 13 x 8.25 x 16.25" (33 x 21 x 41 cm) 12 x 8.25 x 16.25" (30 x 21 x 41 cm)
Shipping 21.75 x 13 x 22" (55 x 33 x 56 cm) 21.75 x 13 x 22" (55 x 33 x 56 cm)

This inverter can be easily installed and serviced by utilizing a 175A Outback E-panel

OutBack Installation Manual
OutBack Programing Manual

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