SunGoldPower FR12K-B: SunGoldPower FR12K-B; official product image.

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Image source: SunGoldPower FR12K-B; official product image.

SunGoldPower FR12K-B

Name: SunGoldPower FR12K-B
Brand: SunGoldPower
SKU: FR12K-B
Rating: 5 (1 reviews)

By SunGoldPowerSKU FR12K-B

Off-grid inverter

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5.0 (1)

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from$1,790

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Continuous output12 kW Battery voltage40 to 60 V Solar inputNot statedMPPT trackers2MPPT range125 to 425 V AC outputSplit-phase mode (default)Single-phase mode WarrantyNot stated Size60.19 L^*W: 485.1 × H: 170.2 × L: 729 mmWeight28 kg / 61.73 lb

Key specs

Units

SKU: FR12K-B
Official store listingPaid link.
Sources
SunGoldPower's own product data, captured 2026-10-27, prints SKU "FR12K-B" for option "Default Title" (variant 48721151852681) of listing "12KW All in One Off Grid Solar Inverter FR12K-B".
Official store listing: SunGoldPower store Paid link.Checked Oct 27, 2026 · Earlier document
Location: SunGoldPower product data (products.json, page 1), listing "12KW All in One Off Grid Solar Inverter FR12K-B" (handle 12kw-48v-split-phase-off-grid-solar-inverter), option "Default Title", "sku":"FR12K-B"
Documented
AC configuration: Single-phase/split-phase
Official instruction manual
Sources
Printed as "Rated output voltage 120/240 VAC (single-phase/split-phase)" in the FR12K-B Solar Charge Inverter User Manual (PDF page 66).
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 66, 9. Parameter Table, Inverter output, Rated output voltage row
Documented
Cooling: Intelligent fan
Official instruction manual
Sources
Exact wording.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, General, Cooling mode row
Documented
Grounding (manual): Grounding terminal reliably connected to the grounding busbar
Official instruction manual
Sources
Printed as "Please ensure that the grounding terminal is reliably connected to the grounding busbar." Setting 63 (PDF page 49) prints "Auto N-PE connection switch function DIS default", an automatic N-PE switch that is off by default.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 19, 4.7 Grounding
Documented
Weight: 28 kg62 lb converted
Converted: 61.73 lb x 0.45359237 = 28.0 kg
Official instruction manual
Sources
Converted: 61.73 lb x 0.45359237 = 28.0 kg
Printed as "Weight 61.73Ibs" in FR12K-B Solar Charge Inverter User Manual, FREEDOM12K-B user manual (20251229), section 9 Parameter Table, General, "Weight" row. Revised on 1 October 2026: The document prints the weight in pounds; the stored kilogram value is that figure multiplied by 0.45359237.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, General, "Weight" row
Converted
MPPT trackers: 2
Official instruction manual
Sources
Printed as "MPPT channel number 2".
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, PV input, MPPT channel number row
Documented
Peak output: 24,000 W
Official instruction manual
Sources
Printed as "Max. peak power 24000W" in the FREEDOM12K-B (FR12K-B) user manual. No duration is printed. Captured on September 25, 2026.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: User manual, section 9 Parameter Table, "Max. peak power" row
Documented
AC voltage: 120/240 VAC (single-phase/split-phase)
Official instruction manual
Sources
Exact wording; the table marks the value as settable.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Inverter output, Rated output voltage row
Documented
Battery charging: 200 A
Official instruction manual
Sources
Printed as "200A" for hybrid charging; settable.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Battery, Max. hybrid charging current row
Documented

All specs48

AC configuration: Single-phase/split-phase
Official instruction manual
Sources
Printed as "Rated output voltage 120/240 VAC (single-phase/split-phase)" in the FR12K-B Solar Charge Inverter User Manual (PDF page 66).
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 66, 9. Parameter Table, Inverter output, Rated output voltage row
Documented
Peak output: 24,000 W
Official instruction manual
Sources
Printed as "Max. peak power 24000W" in the FREEDOM12K-B (FR12K-B) user manual. No duration is printed. Captured on September 25, 2026.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: User manual, section 9 Parameter Table, "Max. peak power" row
Documented
AC voltage: 120/240 VAC (single-phase/split-phase)
Official instruction manual
Sources
Exact wording; the table marks the value as settable.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Inverter output, Rated output voltage row
Documented
Battery charging: 200 A
Official instruction manual
Sources
Printed as "200A" for hybrid charging; settable.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Battery, Max. hybrid charging current row
Documented
Efficiency: 92 %
Official instruction manual
Sources
Printed as "92%", maximum efficiency of the battery inverter.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Efficiency, Max. efficiency of battery inverter row
Documented
AC frequency: 50/60Hz
Official instruction manual
Sources
Exact wording; the table marks the value as settable.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Inverter output, Rated frequency row
Documented
Grid charge current: 120 A
Official instruction manual
Sources
Printed as "120A" for mains/generator charging; settable.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Battery, Max. mains/generator charging current row
Documented
Output waveform: Pure sine wave
Official instruction manual
Sources
Exact wording.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Inverter output, Output wave row
Documented
AC output: Split-phase mode (default); Single-phase mode
Official instruction manual
Sources
Printed as "Split-phase mode (default)" and "Single-phase mode" in section 4.1 Wiring mode (depends on the output mode) of SunGoldPower's FR12K-B solar charge inverter user manual (PDF page 11); the value lists the two modes in the printed order. Under the split-phase mode the same page prints, for the Freedom 12K-B series, "AC output phase voltage (L-N) 100 VAC−120 VAC, 120 VAC (default)" and "AC output line voltage (L-L) 200 VAC−240 VAC, 240 VAC (default)". Corrected on November 3, 2026: the catalog had published 120/240 V split phase (L-N 120 V, L-L 240 V), default; single-phase 120 V mode selectable, cited to SunGoldPower (cdn.shopify.com). The earlier text was a rewording, not the printed words; the value is restored to the words the manual prints, and the earlier text is kept here. Earlier note: "Printed as "AC output phase voltage (L-N) 100 VAC−120 VAC, 120 VAC (default) AC output line voltage (L-L) 200 VAC−240 VAC, 240 VAC (default)"; "FR12K-B Split-phase mode L1 L2 N 63A (L1/L2/N)" in FR12K-B Solar Charge Inverter User Manual (PDF page 11; PDF page 14). Revised on 16 October 2026: Owner report 2026-10-16 (inverter filter AC output 120/240 V): the earlier text omitted the voltages the manual prints, so the unit fell out of the 120/240 V filter although one unit gives 120 V line to neutral and 240 V line to line."
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 11, 4.1 Wiring mode (depends on the output mode), FR12K-B
Documented
Transfer time: 10 ms
Official instruction manual
Sources
Printed as "10 ms (typical value)".
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Inverter output, Switching time row
Documented
Battery voltage: 48 V
Official instruction manual
Sources
Printed as "48Vdc".
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Battery, Rated battery voltage row
Documented
Surge AC output: 24,000 W
Official instruction manual
Sources
Printed as "24000W" (Max. peak power). The table gives no duration for the peak.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Inverter output, Max. peak power row
Documented
AC input voltage: 90−140Vac
Official instruction manual
Sources
Exact wording.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, mains/generator input, Input voltage range row
Documented
Grid pass-through: 63 A
Official instruction manual
Sources
Printed as "Bypass overload phase current 63A".
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, mains/generator input, Bypass overload phase current row
Documented
AC output voltage: AC output phase voltage (L-N) 100 VAC−120 VAC, 120 VAC (default); AC output line voltage (L-L) 200 VAC−240 VAC, 240 VAC (default)
Official instruction manual
Sources
Printed as "AC output phase voltage (L-N) 100 VAC−120 VAC, 120 VAC (default)" and "AC output line voltage (L-L) 200 VAC−240 VAC, 240 VAC (default)" in the split-phase mode table of section 4.1 Wiring mode (depends on the output mode) of SunGoldPower's FR12K-B solar charge inverter user manual (PDF page 11), applicable model "Freedom 12K-B series"; the value lists the two printed lines in order. The single-phase mode table on the same page prints the phase voltage (L-N) line only.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 11, 4.1 Wiring mode (depends on the output mode), split-phase mode table
Documented
Continuous output: 12 kW
Converted: 12000 W / 1000 = 12 kW
Official instruction manual
Sources
Converted: 12000 W / 1000 = 12 kW
Printed as "Rated output power 12000W" in FR12K-B Solar Charge Inverter User Manual, FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Inverter output, "Rated output power" row. Revised on 1 October 2026: The document prints the power in watts; the stored kilowatt value is that figure divided by 1,000.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Inverter output, "Rated output power" row
Converted
Nominal AC voltage: 120/240 VAC (single-phase/split-phase)
Official instruction manual
Sources
Printed as "Rated output voltage 120/240 VAC (single-phase/split-phase)" in the FR12K-B Solar Charge Inverter User Manual (PDF page 66).
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 66, 9. Parameter Table, Inverter output, Rated output voltage row
Documented
Compatible batteries / BMS: Lithium-ion battery/lead-acid battery/user-defined
Official instruction manual
Sources
Printed as "Battery type Lithium-ion battery/lead-acid battery/ user-defined" (settable). Setting item 33 (PDF page 47) lists the lithium BMS protocols, starting with SGP for SunGoldPower, PAC for Pace and RDA for Ritar.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 66, 9. Parameter Table, Battery, Battery type row, FR12K-B column
Documented
Battery operating voltage: 40 to 60 V
Official instruction manual
Sources
Printed as "40−60Vdc"; the table marks the value as settable.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Battery, Voltage range row
Documented

Cooling: Intelligent fan
Official instruction manual
Sources
Exact wording.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, General, Cooling mode row
Documented
Grounding (manual): Grounding terminal reliably connected to the grounding busbar
Official instruction manual
Sources
Printed as "Please ensure that the grounding terminal is reliably connected to the grounding busbar." Setting 63 (PDF page 49) prints "Auto N-PE connection switch function DIS default", an automatic N-PE switch that is off by default.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 19, 4.7 Grounding
Documented
Weight: 28 kg62 lb converted
Converted: 61.73 lb x 0.45359237 = 28.0 kg
Official instruction manual
Sources
Converted: 61.73 lb x 0.45359237 = 28.0 kg
Printed as "Weight 61.73Ibs" in FR12K-B Solar Charge Inverter User Manual, FREEDOM12K-B user manual (20251229), section 9 Parameter Table, General, "Weight" row. Revised on 1 October 2026: The document prints the weight in pounds; the stored kilogram value is that figure multiplied by 0.45359237.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, General, "Weight" row
Converted
PV conductors (manual): 4mm²/12 AWG
Official instruction manual
Sources
Printed as "FR12K-B 4mm²/12 AWG 22A 2P-25A" (columns Cable Size, Max. Input Current, Circuit Breaker Model).
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 14, 4.2 Cable and circuit breaker model, PV INPUT table, Cable Size column, FR12K-B row
Documented
Installation clearances (manual): Top 200mm, bottom 200mm, left 500mm, right 500mm
Official instruction manual
Sources
Read from rendered page 8: the clearance drawing marks 200mm above and below the inverter and 500mm on each side. The text beside it asks for "Sufficient heat dissipation space."
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 8, 3.1 Installation location, clearance drawing
Documented
Dimensions: 60.19 L
Calculated: Enclosure volume: W × H × D ÷ 1,000,000
W: 485.1 × H: 170.2 × L: 729 mmW: 19.1 × H: 6.7 × L: 28.7 inOfficial instruction manual
Sources
Converted: 28.7 x 19.1 x 6.7 in x 25.4 mm/in, rounded to 0.1 mm
Printed as "28.7 X 19.1 X 6.7 inches" without naming the axes; converted from inches in printed order.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, General, Dimension row
Calculated
PV disconnect (manual): 2P-25A circuit breaker
Official instruction manual
Sources
Printed as "FR12K-B 4mm²/12 AWG 22A 2P-25A"; 2P-25A is the circuit breaker model column for a 22A maximum input current. The unit also has a built-in PV switch ("18 PV Switch", PDF page 6).
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 14, 4.2 Cable and circuit breaker model, PV INPUT table, Circuit Breaker Model column, FR12K-B row
Documented
Communications: RS485; CAN; USB; dry contact
Official instruction manual
Sources
Printed as "RS485/CAN/USB/dry contact" (built-in). Wi-Fi/GPRS is printed as an optional external module and is not included here.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Communication, Built-in interface row
Documented
AC input breaker (manual): Split-phase: 3P-63A; single-phase: 2P-125A
Official instruction manual
Sources
Printed as "13mm²/6 AWG (L1/L2/N) 3P-63A" for split-phase (63A per line) and "2P-125A" for single-phase mode (63A L1/L2, 126 A N); read with rendered page 14 for the row layout.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 14, 4.2 Cable and circuit breaker model, AC INPUT table, Circuit Breaker Model column, FR12K-B rows
Documented
Enclosure: IP20
Official instruction manual
Sources
Printed as "IP20, for indoor use only".
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, General, Protection level row
Documented
Ground conductor (manual): Not less than 4 mm²
Official instruction manual
Sources
Printed as "The grounding cable size shall not be less than 4 mm²" and "as close as possible to the grounding point".
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 19, 4.7 Grounding, notice
Documented
AC output breaker (manual): Split-phase: 3P-63A; single-phase: 2P-125A
Official instruction manual
Sources
Printed as "13mm2/6 AWG (L1/L2/N) 3P-63A" for split-phase mode and "2P-125A" for single-phase mode; read with rendered page 14 for the row layout.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 14, 4.2 Cable and circuit breaker model, AC output table, Circuit Breaker Model column, FR12K-B rows
Documented
Battery cable size (manual): 85mm²/000 AWG
Official instruction manual
Sources
Printed as "FR12K-B 85mm²/000 AWG 260A 3P-300A" (columns Cable Size, Max. Current, Circuit Breaker Model). The manual notes the wire diameter is for reference only.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 14, 4.2 Cable and circuit breaker model, Battery table, Cable Size column, FR12K-B row
Documented
Generator support: Generator port (generator input by default; can be set to secondary load output)
Official instruction manual
Sources
Printed as "7 Generator port" in the product overview; setting 81 prints "GEN IN default Generator input." with AC OUT for secondary load output; setting 74 prints "Generator input power 12KW setting range: 0-12kW."
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 6, 2.4 Product overview, item 7; PDF page 49, 5.2 Setting, items 74 and 81
Documented
AC input conductors (manual): Split-phase: 13mm²/6 AWG (L1/L2/N); single-phase: 13mm²/6 AWG (L1/L2), 26mm²/3 AWG (N)
Official instruction manual
Sources
Printed as "13mm²/6 AWG (L1/L2/N) 3P-63A" for split-phase and "26mm²/3 AWG (N)" for the neutral in single-phase mode (L1 and L2 in same phase), whose L1/L2 cable is also 13mm²/6 AWG; read with rendered page 14 for the row layout.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 14, 4.2 Cable and circuit breaker model, AC INPUT table, Cable Size column, FR12K-B rows
Documented
Battery fuse or breaker (manual): 3P-300A
Official instruction manual
Sources
Printed as "FR12K-B 85mm²/000 AWG 260A 3P-300A"; 3P-300A is the circuit breaker model column, with a maximum current of 260A.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 14, 4.2 Cable and circuit breaker model, Battery table, Circuit Breaker Model column, FR12K-B row
Documented
Parallel units: 6
Official instruction manual
Sources
Printed as "Parallel number 6". The product page also says up to 6 units can be connected in parallel.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Inverter output, Parallel number row
Documented
AC output conductors (manual): Split-phase: 13mm2/6 AWG (L1/L2/N); single-phase: 13mm2/6 AWG (L1/L2), 26mm2/3 AWG (N)
Official instruction manual
Sources
Printed as "13mm2/6 AWG (L1/L2/N) 3P-63A" for split-phase mode and "26mm2/3 AWG (N)" for the neutral in single-phase mode, whose L1/L2 cable is also 13mm2/6 AWG; read with rendered page 14 for the row layout.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 14, 4.2 Cable and circuit breaker model, AC output table, Cable Size column, FR12K-B rows
Documented
Communication ports (manual): Parallel port; USB port; CT port (reserve); WIFI port; RS485/CAN port; Dry contact
Official instruction manual
Sources
Printed as "12 Parallel port 13 USB port 14 CT port（reserve） 15 WIFI port 16 RS485/CAN port 17 Dry contact". The WIFI and RS485/CAN ports are RJ45 (PDF page 57).
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 56, 6.1 Communication overview
Documented
Operating noise: <60 dB
Official instruction manual
Sources
Printed as "Noise <60 dB"; no measuring distance is printed.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 67, 9. Parameter Table, General, Noise row, FR12K-B column
Documented
Mounting orientation (manual): A solid wall. Installation height: flush with the line of sight.
Official instruction manual
Sources
Printed as "A solid wall." and "Installation height: flush with the line of sight." Section 3.3 (PDF page 10) fixes the unit to the wall with expansion screws and M5 screws.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: PDF page 8, 3.1 Installation location, location factors list
Documented
Operating temperature: -10 to 55 °C14 to 131 °F converted
Official instruction manual
Sources
Printed as "−10°C−55°C, >45°C derating"; output is derated above 45 °C.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, General, Ambient temperature row
Documented
Other compliance claims: EMC EN61000-6-1, EN61000-6-3, and FCC 15 class B
Official instruction manual
Sources
Exact certification line as printed; the table also prints "RoHS Yes". No safety standard is printed in this table.
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Location: FREEDOM12K-B user manual (20251229), section 9 Parameter Table, Certification, EMC row
Documented

Published claims and calculations, not independent test results.

Documents

3 on file

PDF
FR12K-B Solar Charge Inverter Data SheetOfficialSunGoldPowerOfficial datasheet
Source details
Revision
Not stated
Revision date
Not stated
SunGoldPower publishes this datasheet for FR12K-B and names no other model in this catalog on it. Read from https://sungoldpower.com/collections/power-inverter on 2026-09-19. It establishes only what it prints; no issuer, laboratory or revision-currency check was made.
Location: Document title as published
Retrieved Sep 19, 2026
SunGoldPower publishes this datasheet for FR12K-B and names no other model in this catalog on it. Read from https://sungoldpower.com/collections/power-inverter on 2026-09-19. It establishes only what it prints; no issuer, laboratory or revision-currency check was made.
SHA-256: ca07cff1304e07e511e2569a3e6fab83c44499b43b68a43f7c9547fef9de5241
Archived copies
Archived copy of a document published by SunGoldPower. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived backup Revision not recorded · 1.63 MB
Archived copy, unaltered, kept as a record of what SunGoldPower published. Original address: https://cdn.shopify.com/s/files/1/0323/4090/2025/files/FR12K-B_Inverter.pdf. Copyright and takedown
Source first found
Sep 19, 2026
This copy captured
Sep 18, 2026, 5:00 PM PDT
Archived
Sep 18, 2026, 5:00 PM PDT
File details
Original source
Pages
2
Embedded dates are file metadata, not independent proof of publication.
SHA-256: ca07cff1304e07e511e2569a3e6fab83c44499b43b68a43f7c9547fef9de5241
Open
PDF
FR12K-B Solar Charge Inverter User ManualOfficialSunGoldPowerOfficial instruction manual
Certificate & compliance claims (3)
EN61000-6-1Manufacturer claim · equipment listingClaimedListed when checked
SunGoldPower's own statement, recorded exactly as printed: "EMC EN61000-6-1, EN61000-6-3, and FCC 15 class B" (FREEDOM12K-B_solar_charge_inverter_20251229.pdf). A manufacturer statement names no certificate number or issuer and is not evidence of a listing; certificate documents SunGoldPower serves are recorded separately.
Manufacturer document
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
EN61000-6-3Manufacturer claim · equipment listingClaimedListed when checked
SunGoldPower's own statement, recorded exactly as printed: "EMC EN61000-6-1, EN61000-6-3, and FCC 15 class B" (FREEDOM12K-B_solar_charge_inverter_20251229.pdf). A manufacturer statement names no certificate number or issuer and is not evidence of a listing; certificate documents SunGoldPower serves are recorded separately.
Manufacturer document
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
FCC 15 class BManufacturer claim · equipment listingClaimedListed when checked
SunGoldPower's own statement, recorded exactly as printed: "EMC EN61000-6-1, EN61000-6-3, and FCC 15 class B" (FREEDOM12K-B_solar_charge_inverter_20251229.pdf). A manufacturer statement names no certificate number or issuer and is not evidence of a listing; certificate documents SunGoldPower serves are recorded separately.
Manufacturer document
Official instruction manual: FR12K-B Solar Charge Inverter User Manual Checked Sep 19, 2026 · Earlier document
Source details
Revision
Not stated
Revision date
Not stated
SunGoldPower publishes this instruction manual for FR12K-B and names no other model in this catalog on it. Read from https://sungoldpower.com/collections/power-inverter on 2026-09-19. It establishes only what it prints; no issuer, laboratory or revision-currency check was made.
Location: Document title as published
Retrieved Sep 19, 2026
SunGoldPower publishes this instruction manual for FR12K-B and names no other model in this catalog on it. Read from https://sungoldpower.com/collections/power-inverter on 2026-09-19. It establishes only what it prints; no issuer, laboratory or revision-currency check was made.
SHA-256: 9c4a3336eeb60ff4fbf2fe61a8f1dacff3fbda06da0ecf1ff868df7fe844efd2
Archived copies
Archived copy of a document published by SunGoldPower. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived backup Revision not recorded · 7.01 MB
Archived copy, unaltered, kept as a record of what SunGoldPower published. Original address: https://cdn.shopify.com/s/files/1/0323/4090/2025/files/FREEDOM12K-B_solar_charge_inverter_20251229.pdf. Copyright and takedown
Source first found
Sep 19, 2026
This copy captured
Sep 18, 2026, 5:00 PM PDT
Archived
Sep 18, 2026, 5:00 PM PDT
File details
Original source
Pages
68
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 9c4a3336eeb60ff4fbf2fe61a8f1dacff3fbda06da0ecf1ff868df7fe844efd2
Open
WEB
12KW All in One Off Grid Solar Inverter FR12K-B, SunGoldPower product page (September 23, 2026 capture)OfficialSunGoldPowerOfficial product page
Source details
Revision
Not stated
Revision date
Not stated
Location: Product heading; Highlight list; Specification and User Manual tabs (manual-download-button links)
Retrieved Sep 22, 2026
SunGoldPower's own product page, captured byte for byte on September 23, 2026. It establishes what SunGoldPower published for FR12K-B on that date: the page heading, the Highlight text, the variant selector (SKUs FR12K-B) and the 2 document link(s) under its User Manual tab. Prices and stock on the page are the state of a promotional storefront and are not recorded from it. A specification quoted from the page is SunGoldPower's own published figure, not a test result.
OpenPaid link.

Archive and older revisions0

Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.

Archived documents

FR12K-B Solar Charge Inverter Data Sheet

Archived copy of a document published by SunGoldPower. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup Revision not recorded · 1.63 MB

Archived copy, unaltered, kept as a record of what SunGoldPower published. Original address: https://cdn.shopify.com/s/files/1/0323/4090/2025/files/FR12K-B_Inverter.pdf. Copyright and takedown

Source first found: Sep 19, 2026
This copy captured: Sep 18, 2026, 5:00 PM PDT
Archived: Sep 18, 2026, 5:00 PM PDT

File details

Original source

Pages: 2

Embedded dates are file metadata, not independent proof of publication.

SHA-256: ca07cff1304e07e511e2569a3e6fab83c44499b43b68a43f7c9547fef9de5241

FR12K-B Solar Charge Inverter User Manual

Archived backup Revision not recorded · 7.01 MB

Archived copy, unaltered, kept as a record of what SunGoldPower published. Original address: https://cdn.shopify.com/s/files/1/0323/4090/2025/files/FREEDOM12K-B_solar_charge_inverter_20251229.pdf. Copyright and takedown

Source first found: Sep 19, 2026
This copy captured: Sep 18, 2026, 5:00 PM PDT
Archived: Sep 18, 2026, 5:00 PM PDT

File details

Original source

Pages: 68

Embedded dates are file metadata, not independent proof of publication.

SHA-256: 9c4a3336eeb60ff4fbf2fe61a8f1dacff3fbda06da0ecf1ff868df7fe844efd2

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Warranty

No warranty terms on file.

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4.1 (7)not verified

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$1,790Price as of Nov 12, 2026, 2:40 PM PST, may change

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Listing SKU FR12K-B

$1,790Recorded Oct 31, 2026

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Price history

$1,790

Prices we read at SunGoldPower · 1 reading · no change in our readings since Oct 31, 2026

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Since Oct 31, 2026 · Listing price (USD)

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SunGoldPower$1,790Oct 31, 2026, 2:37 PM PDTLatest check · hover or tap for earlier prices

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Collected price observations by seller
Checked (UTC)	Seller	Price
Oct 31, 2026, 2:37 PM PDT	SunGoldPower Paid link.	$1,790

Owner reviews

5.0 / 51 review

Recent reviews count from the latest approved revision. Verified reviews carry 19× the weight. Select a period to filter.

Ratings by category

Warranty: Not rated
Software: 4.0 / 51 review
Reliability: 5.0 / 51 review
Build quality: 5.0 / 51 review
Ease of install: 5.0 / 51 review
Customer service: Not rated

Showing 1 of 1 reviews

5/5

@nightfire1 pointVerified ownerOct 23, 2026

Great Balance of Price, Reliability, and Features

Software: 4/5
Reliability: 5/5
Build quality: 5/5
Ease of install: 5/5

After about a year of use, I have been very happy with the SunGoldPower FR12K-B. With 12 KW of power, it powers most of my homes circuits. No major issues except a small software bug that forced me to restart a couple times. There was an update sent via the wifi dongle and I haven't had a issue since. I really like the built in breakers and and secondary output capability. Support has been good as emails are always answered within 24 hours.

Disclosure: I was able to get a discount.

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Your reviews · Review policy

Evidence score

Research pending0% documented

The Evidence score uses the priorities you choose. It counts published documents, such as certificates and warranty terms, and it compares a documented figure with the best documented figure of the same kind. It does not count owner reviews, and it is not a verdict on product quality or on how many people have reviewed it. A low score can mean little is documented, or that a documented figure is below the best of its kind. Undisclosed data scores 0.

Missing for this product: Certificate evidence needed; Warranty term needed; Battery conversion efficiency needed; Idle consumption needed.

Each input is scored against the best documented value for an inverter: warranty term and battery conversion efficiency against every published inverter, idle consumption (lower is better) against the inverters in the same output band, or against every published inverter when the output is not documented. A documented value always earns points; an undisclosed one earns 0 and is listed as missing. Researched products receive a score. Certificates earn points for the evidence itself. Size and weight do not affect scores.

Research pending, 0 points: Certificates, Warranty term, Battery conversion efficiency, Idle consumption.

Warranty term and battery conversion efficiency are compared with every published inverter; idle consumption with the inverters in the same 7 to 15 kW output band. · Method version 0.5

How it works

Certificates

3 on file6 claims on file · issuer check pending

EN61000-6-1Product / system scope unresolvedClaimedListed when checked

SunGoldPower's own statement, recorded exactly as printed: "EMC EN61000-6-1, EN61000-6-3, and FCC 15 class B" (FREEDOM12K-B_solar_charge_inverter_20251229.pdf). A manufacturer statement names no certificate number or issuer and is not evidence of a listing; certificate documents SunGoldPower serves are recorded separately.

Models: FR12K-B