Primo LITE Specifications

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With power categories ranging from 3.8 kW to 15.0 kW, the transformerless Fronius Primo Lite is the ideal compact single-phase
inverter for residential applications. The sleek design is equipped with the SnapINverter hinge mounting system, which allows
for lightweight, secure, and convenient installation. The Fronius Primo Lite has several integrated features that set it apart from
competitors including dual power point trackers, high system voltage, and a wide input voltage range.
GENERAL DATA FRONIUS PRIMO LITE 3.8 - 8.2 FRONIUS PRIMO LITE 10.0-15.0
Dimensions (width x height x depth) 16.9 x 24.7 x 8.1 in. 20.1 x 28.5 x 8.9 in.
Weight 47.29 lbs. 82.5 lbs.
Protection Class NEMA 4X
Night time consumption < 1 W
Inverter topology Transformerless
Cooling Variable speed fan
Installation Indoor and outdoor installation
Ambient operating temperature range -40 - 131°F (-40 - 55°C) -40 - 140°F (-40 - 60°C)
Permitted humidity 0 - 100 %
Elevation 4,000 m (13,123 ft)
DC connection terminals
4x DC+ and 4x DC- screw terminals for copper (solid /
stranded / fine stranded) or aluminum (solid / stranded)
4x DC+1, 2x DC+2 and 6x DC- screw terminals for copper (solid /
stranded / fine stranded) or aluminum (solid / stranded)
AC connection terminals Screw terminals 12 - 6 AWG
Warranty 10 years / extensions up to 15 and 20 years available
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Certificates and compliance with standards
UL 1741-2010 Second Edition (incl. UL1741 Supplement SA 2016-09 for California Rule 21 and Hawaiian Electric Code Rule 14H),
UL1998 (for functions: AFCI, RCMU and isolation monitoring), IEEE 1547-2003, IEEE 1547.1-2003, ANSI/IEEE C62.41, FCC Part 15 A & B,
NEC 2017 Article 690, C22. 2 No. 107.1-16, UL1699B Issue 2 -2013, CSA TIL M-07 Issue 1 – 2013
PROTECTIVE DEVICES STANDARD WITH ALL PRIMO LITE MODELS
DC reverse polarity protection Yes
Anti Islanding Internal; in accordance with UL 1741-2016-09, IEEE 1547-2003 and NEC 2017
Over temperature protection Output power derating/ Active cooling
AFCI Yes
Rapid shutdown compliant Yes
Ground Fault Protection with Isolation Monitor
Interrupter
Yes
DC disconnect Yes
INTERFACES STANDARD WITH ALL PRIMO LITE MODELS
USB (A socket) Inverter update possible via USB
2x RS422 (RJ45 socket) Fronius Solar Net, interface protocol
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Fronius Limited Warranty Conditions for the USA. Dierent terms or restrictions may apply in other countries. More Information www.fronius.us/warranty
FRONIUS PRIMO LITE
Solutions for a brighter tomorrow
TECHNICAL DATA FRONIUS PRIMO LITE
N
W
S
E
SnapINverter
mounting system
Smart Grid
Ready
PC board
replacement
concept
Design
Flexibility