Description
The transformerless, single-phase Fronius Primo 12.5-1 string inverter handles up to 15,000 Watt DC input and delivers 12,500 Watt AC output for residential solar installations with a 208V - 240V grid connection. The Fronius Primo has several industry-leading standard integrated features including Wi-Fi monitoring and datalogging, field proven Arc Fault Circuit Interruption (AFCI) protection, free online and mobile monitoring platform through Fronius Solar.web, and an integrated disconnect safety switch.
The compact Fronius Primo design is equipped with the SnapINverter hinge mounting system for lightweight and secure installation that can be done in under 15 minutes. Ready for NEC codes now and in the the future. Certified to UL 1741-SA (Rule 21) and FCC. Order online or PHONE 888-498-3331
Product Highlights
- Dual-channel MPPT for real time power tracking
- Free WiFi data monitoring options to view inverter performance
- Wide MPPT input voltage range enables high flexibility in solar array string design
- 96.5% CEC efficiency for improved energy harvesting
- Extra quiet high frequency transformer-less inverter architecture
- NEMA 4X enclosure and light weight design enable inverter mounting flexibility
- Integrated DC disconnect safety switch and wiring box saves installation time and cost
- Meets latest Arc-fault protection standards
- Standard 10-Year Warranty, available extended warranty up to 20 years
- Qualifies for Federal Renewable Energy Tax Credit and State and Utility Solar Rebates!
Parts / Specifications
Manufacturer: |
Fronius |
Solar Inverter Model: |
Fronius Primo 12.5-1 208-240 |
DC Power Input: |
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MAXIMUM STC RATED PV POWER: |
15,000 watts DC |
MINIMUM STC RATED PV POWER: |
10,000 watts DC |
MAX. USABLE INPUT CURRENT (MPPT1/MPPT 2): |
33.0 Amps / 18.0 Amps |
Total max. DC current: |
51 Amps |
Max. array short circuit current (1.25 Imax) (MPPT 1/MPPT 2): |
41.3 Amps / 22.5 Amps |
Max. input voltage: |
600 V DC |
Nominal input voltage: |
425 Volts |
Admissible conductor size DC: |
AWG 14 - AWG 6 copper direct, AWG 6 aluminum direct (AWG 10 copper or AWG 8 aluminium for overcurrent protective devices up to 60A, from 61 to 100A minimum AWG 8 for copper or AWG 6 aluminium has to be used), AWG 4 - AWG 2 copper or aluminum with opt |
MPP Voltage Range: |
260 - 480 V |
Integrated DC string fuse holders: |
4- and 4+ for MPPT 1 / no fusing required on MPPT 2 |
Number of MPPT: |
2 |
AC POWER OUTPUT: |
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Max. output power (240 V): |
12500 watts |
Max. output power (208 V): |
12500 watts |
Max. continuous output current (240 V): |
52.1 Amps |
Max. continuous output current (208 V): |
60.1 Amps |
Recommended OCPD/AC breaker size (240 V): |
70 Amps |
Recommended OCPD/AC breaker size (208 V): |
80 Amps |
Max. Efficiency: |
96.7% |
CEC Efficiency: |
96.0% |
Admissable conductor size AC: |
AWG 10 - AWG 2 copper (solid / stranded / fine stranded)(AWG 10 copper or AWG 8 aluminium for overcurrent protective devices up to 60A, from 61 to 100A minimum AWG 8 for copper or AWG 6 aluminium has to be used) , AWG 6 - AWG 2 copper(solid / strande |
Grid connection: |
208 / 240 V |
Frequency: |
60 Hz |
Total harmonic distortion: |
< 2.5 % |
Power factor: |
0-1 ind./cap. |
General Data: |
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Dimensions (width x height x depth): |
20.1 x 28.5 x 8.9 in |
Weight: |
82.5 lbs |
Degree of protection: |
NEMA 4X |
Night time consumption: |
< 1 W |
Inverter topology: |
Transformerless |
Cooling: |
Variable speed fan |
Installation: |
Indoor and outdoor installation |
Permitted humidity: |
0 - 100 % |
DC connection terminals: |
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 |
Revenue Grade Metering: |
Optional (ANSI C12.1 accuracy) |
Certificates and compliance with standards: |
UL 1741-2015, 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 Article 690-2014, C22. 2 No. 107.1-01 (September 2001) , UL1699B Issue 2 -2013, CSA TIL M-07 Issue 1 |
PROTECTIVE DEVICES: |
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AFCI & 2014 NEC Ready: |
Yes |
Ground Fault Protection with Isolation Monitor Interrupter: |
Yes |
DC disconnect: |
Yes |
DC reverse polarity protection: |
Yes |
INTERFACES: |
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Wi-Fi/Ethernet/Serial: |
Wireless standard 802.11 b/g/n / Fronius Solar.web, SunSpec Modbus TCP, JSON / SunSpec Modbus RTU |
6 inputs or 4 digital inputs/outputs: |
External relay controls |
USB (A socket): |
Datalogging and/or updating via USB |
2x RS422 (RJ45 socket): |
Fronius Solar Net, interface protocol |
Datalogger and Webserver: |
Included |
Fronius Primo inverter datasheet
