Specifications

Model SBX5048-120/240
Series SkyBox
Manufacturer OutBack Power

Mechanical

Type Grid-Hybrid Inverter
RoHS Yes, directive 2011/65/EU
Operating Temperature Range -20 to 60°C
Non-Volatile Memory Yes
Field-Upgradable Firmware Yes
Enclosure NEMA 3R
Dimensions 47″ H x 21″ W x 9.4″ D
Weight 110.6 lbs
Warranty 5 Year
Shipping Method Freight

Grid and Loads

AC Voltage 120/240V (split-phase)
AC Frequency 60Hz
Max Continuous AC Output Power (@45°C) 5000VA (derate above 45°C)
Max Continuous Output Current (@ 240V) 24A @ 25°C
Total Harmonic Distortion Typical: <2%
Maximum: <5%
Integrated Arc Fault Detection, Ground Fault Detection & Isolation and Monitoring Yes
Power Factor at Rated Power 1

PV Input

Max PV System Voltage 600V
MPPT Voltage Range 200-600V
Max Input Current 20A
Max Short-Circuit Current 32A
Max Backfeed Duration (to array) <8ms
Reverse-Polarity Protection Yes
CEC Weighted Efficiency >94%
Typical Inverter Efficiency >97%
Transformerless, Ungrounded Yes

Battery

Unassisted Load Support from Battery Only 5000VA
Nominal DC Battery Voltage 48V
Battery Voltage Range 42-60V
Reverse-Polarity Notification Yes

Operating Modes

Immediate Battery Backup Power Yes Grid Support (UL 1741 SA) Yes Islanding Protection Yes Net Metering Yes Non-Export Yes Maximum Independence Yes Configurable Battery Charging Parameters Yes, to allow/disallow charging from AC for compliance with local regulations. Prioritized Charging from Renewables YesThe SkyBox hybrid grid tie inverter can be used as a grid-tie inverter with or without a battery. When used with a battery it can be used to enhance self-supply of solar energy. This is useful when net-metering, or grid feed is not available, or not advantageous financially. This system uses DC coupling for both the solar and the connection to the battery system for greater overall efficiency. The SkyBox uses any commonly available 48 VDC battery bank, any lead type, flooded, AGM, or gel, and many Lithium batteries. PV input voltage range is 200-600 VDC, allowing longer PV strings. Compliant with California rule 21 and Hawaii 14H grid support requirements.

The system features backup power; grid support; net metering; non-export; and prioritized charging from renewables. These features can use any of the loads in the house, including those on the main service panel, what we call “primary” self-supply.Backup power is available to the loads connected to the backup loads panel, with a quick transfer time of 20ms. Backup power capacity is 5 kW. The inverter has ground fault and arc fault protection built in. CT’s can be installed on the house AC lines for export control.