Fronius Primo GEN24 5.0 Plus
Official manufacturer UK/EU verified Sept. 1, 2026
UNKNOWN
Identity
| brand | Fronius |
| category | inverters |
| ean | UNKNOWN |
| generation | GEN24 |
| manufacturer | Fronius International GmbH |
| market_version | UK page (en-gb/uk) of fronius.com; the equivalent AU page carries the same electrical figures. Certificate list on the UK page includes AS/NZS 4777.2 and ABNT NBR (global certificate list). |
| model | Primo GEN24 5.0 Plus |
| mpn | UNKNOWN |
| product_family | Fronius Primo GEN24 Plus 3.0 / 3.6 / 4.0 / 4.6 / 5.0 / 6.0 |
| product_revision | UNKNOWN |
| product_status | active |
| region | UK/EU |
| release_year | UNKNOWN |
| sku | UNKNOWN |
Electrical
| ac_coupling_support | True |
| backup_eps_output_support | True |
| battery_support | True |
| battery_type | HV lithium: BYD Battery-Box Premium HVS/HVM and LG RESU FLEX (with model exclusions, see officially_supported_battery_brands) |
| battery_voltage_class | HV |
| battery_voltage_max_v | 455 |
| battery_voltage_min_v |
150
Fronius Primo GEN24 5.0 Plus - Technical Data (HTML) — Technical Data > Battery Connection, 'DC input voltage range (Udc min - Udc max)' = '150 V - 455 V'; footnote 7 'An AC power derating of the inverter occurs from a battery DC input voltage of 419.7 V'
|
| communication_can | UNKNOWN |
| communication_ethernet | True |
| communication_rs485 | True |
| communication_wifi | True |
| ct_support | UNKNOWN |
| generator_input_support | UNKNOWN |
| grid_certifications | ['IEC 62109', 'IEC 62109-1', 'IEC 62109-2', 'IEC 62909', 'IEC 62116', 'IEC 61727', 'IEC 62477-1', 'IEC 62920', 'IEC 62368-1', 'EN 50549-1 (RfG)', 'AS/NZS 4777.2', 'CEI 0-21', 'ABNT NBR 16149', 'ABNT NBR 16150'] |
| grid_export_control | True |
| home_assistant_integration | UNKNOWN |
| max_ac_power_kw | 5 |
| max_battery_charge_current_a | 22 |
| max_battery_charge_power_kw | 5.17 |
| max_battery_discharge_current_a | 22 |
| max_dc_voltage_v |
600
Fronius Primo GEN24 5.0 Plus - Technical Data (HTML) — Technical Data > Input Data, 'DC input voltage range (Udc min - Udc max)' = '65 - 600 V'
|
| max_input_current_per_mppt_a |
22 (MPPT1) / 12 (MPPT2) - asymmetric
Fronius Primo GEN24 5.0 Plus - Technical Data (HTML) — Technical Data > Input Data, 'Max. input current (Idc max)' = '22 / 12 A'
|
| max_pv_input_power_w | 7500 |
| max_short_circuit_current_per_mppt_a |
41.25 (MPPT1) / 22 (MPPT2) - this is Isc max per the page footnote 'Isc pv = Isc max >= Isc (STC) x 1,25'; the Fronius Quick Start Guide states the un-multiplied module-array Isc as 33 A (MPPT1) / 18 A (MPPT2) - see data_conflicts
Fronius Primo GEN24 5.0 Plus - Technical Data (HTML) — Technical Data > Input Data, 'Max. short circuit current, module array*' = '41,25 / 22 A'; footnote '* Isc pv = Isc max >= Isc (STC) x 1,25'
|
| modbus_rtu | True |
| modbus_tcp | True |
| mppt_max_voltage_v | 530 |
| mppt_min_voltage_v | 230 |
| num_mppt | 2 |
| officially_supported_battery_brands |
['BYD Battery-Box Premium HVS (NOT HVS 10.2, NOT HVS 12.8)', 'BYD Battery-Box Premium HVM (NOT HVM 8.3, NOT HVM 22.1)', 'LG RESU FLEX (NOT RESU FLEX 17.2)']
Fronius Primo GEN24 5.0 Plus - Technical Data (HTML) — Technical Data > General Data, 'Compatible batteries' = 'BYD Battery-Box Premium HVS/HVM & LG RESU FLEX 5)' with footnote 5 listing the excluded models
|
| phase_type | single-phase |
| pv_inputs_per_mppt | 2+2 (4 DC connections total; 2 per MPP tracker) |
| rated_ac_power_kw | 5 |
| smart_meter_support | True |
| startup_voltage_v | 80 |
| sunspec_support | True |
| topology | hybrid |
Physical / mechanical
| bracket_dimensions_mm | UNKNOWN |
| cable_entry_positions | UNKNOWN |
| cable_gland_sizes | UNKNOWN |
| depth_mm | 165 |
| diameter_mm | UNKNOWN |
| din_rail_type | UNKNOWN |
| enclosure_material | UNKNOWN |
| height_mm | 530 |
| housing_color | white (from product photograph on the official technical-data page) |
| mounting_bolt_size |
screws with thread diameter 6-8 mm (0.24-0.32 in); fixing material to be selected by the installer to suit the substrate
Fronius Primo GEN24 3 - 6 kW / 3 - 6 kW Plus / 3 - 6 kW SC / 3 - 6 kW SC Plus Operating instructions (HTML) — Installation > Installing the mounting bracket and attaching the inverter > Properties of the mounting bracket
|
| mounting_hole_diameter_mm | UNKNOWN |
| mounting_hole_spacing_mm |
406 (distance from the left to the right pre-drilled hole of the mounting bracket)
Fronius Primo GEN24 3 - 6 kW / 3 - 6 kW Plus / 3 - 6 kW SC / 3 - 6 kW SC Plus Operating instructions (HTML) — Installation > Installing the mounting bracket and attaching the inverter > Properties of the mounting bracket
|
| mounting_plate_dimensions_mm | UNKNOWN |
| mounting_type | ['wall', 'pole'] |
| rack_units | UNKNOWN |
| screw_sizes | TX20 captive screws on the connection area cover |
| shipping_weight_kg | 19 |
| terminal_locations | separate connection area behind the front cover (quick-fastener system) |
| torque_specs |
connection area cover quick-fastener system: screwdriver TX20, torque 0.5-5 N.m, do not turn the screws more than 180 degrees
Fronius Primo GEN24 3 - 6 kW / 3 - 6 kW Plus / 3 - 6 kW SC / 3 - 6 kW SC Plus Operating instructions (HTML) — Installation > General, 'Quick-fastener system'
|
| weight_kg |
15.38
Fronius Primo GEN24 5.0 Plus - Technical Data (HTML) — Technical Data > General Data, 'Weight' = '15,38 kg'
|
| width_mm |
474
Fronius Primo GEN24 5.0 Plus - Technical Data (HTML) — Technical Data > General Data, 'Dimension / width' = '474 mm'
|
Installation
| altitude_derating_note | The inverter must not be installed or operated at more than 4,000 m above sea level. |
| clearance_bottom_mm | UNKNOWN |
| clearance_front_mm | UNKNOWN |
| clearance_left_mm | UNKNOWN (manual only states that ambient air must flow through the ventilation slots unimpeded; 2000 mm on all sides is required only for installation on the outer walls of cattle sheds) |
| clearance_right_mm | UNKNOWN |
| clearance_top_mm | UNKNOWN |
| cooling_airflow_requirements | front air intake, side exhaust (thermal concept); ambient air must always flow through the ventilation slots unimpeded |
| direct_sunlight_restriction | In order to keep inverter heating as low as possible, do not expose the inverter to direct sunlight. The inverter should be installed in a protected location, e.g. near the PV modules or under an overhanging roof. |
| indoor_outdoor | indoor and outdoor installation (IP66) |
| installation_humidity_range | 0-100 % |
| installation_temperature_range_c | -40 to +60 (max. ambient temperatures stated in the installation-location chapter) |
| max_installation_altitude_m |
4000
Fronius Primo GEN24 3 - 6 kW / 3 - 6 kW Plus / 3 - 6 kW SC / 3 - 6 kW SC Plus Operating instructions (HTML) — Installation > Installation location and position > Choosing the location of the inverter
|
| minimum_wall_thickness_mm | UNKNOWN |
| mounting_orientation |
vertical installation on a vertical wall or column; also permitted on a sloping surface with a minimum slope of the underside of 10 degrees
Fronius Primo GEN24 3 - 6 kW / 3 - 6 kW Plus / 3 - 6 kW SC / 3 - 6 kW SC Plus Operating instructions (HTML) — Installation > Installation location and position > Installation position of the inverter
|
| orientation_allowed | ['vertical on a vertical wall or column', 'sloping surface (min. slope of underside 10 degrees)'] |
| orientation_forbidden | ['sloping surface with the connections upwards', 'sloping position on a vertical wall or column', 'horizontal position on a vertical wall or column', 'connections upwards on a vertical wall or column', 'overhanging with the connections upwards', 'overhanging with the connections downwards', 'on the ceiling'] |
| special_restrictions | Do not install where the inverter may be exposed to ammonia, corrosive gases, acids or salts (fertilizer storage areas, vent openings for livestock stables, chemical plants, tanneries). Do not install in areas with an increased risk of accidents from farm animals, in stables or adjoining areas, or in storage areas for hay, straw, chaff, animal feed and fertilizers. Not to be installed in an occupied living area (slight operating noise). On outer walls of cattle sheds a minimum clearance of 2 m must be maintained between all sides of the inverter and the ventilation and building openings. |
| surface_requirements |
Only install on a solid, non-flammable surface. Permissible substrates: walls (corrugated metal walls with mounting rails, brick walls, concrete walls or other non-flammable surfaces sufficiently capable of bearing loads); mast or beam (installed using mounting rails, behind the PV modules on the PV mounting system); flat roofs (film roofs must comply with fire protection requirements and not be highly flammable); covered parking lot roofs (no overhead installation).
Fronius Primo GEN24 3 - 6 kW / 3 - 6 kW Plus / 3 - 6 kW SC / 3 - 6 kW SC Plus Operating instructions (HTML) — Installation > Installation location and position > Choosing the location of the inverter
|
| two_person_lift_required | UNKNOWN |
| ventilation_requirements | When installing the inverter in a switch cabinet or similar closed environment, it is necessary to make sure that the hot air that develops will be dissipated by forced-air ventilation. |
Environment
| cooling_method | regulated air cooling (active cooling with fan(s); fan test function in the inverter UI) |
| corrosion_class | UNKNOWN |
| fan_replaceable | yes (INFERRED: the operating instructions' Fan test function is described as a check 'for example after replacing a fan') |
| ik_rating | UNKNOWN |
| ip_rating | IP66 |
| max_altitude_m | 4000 |
| nema_rating | UNKNOWN |
| noise_level_db |
42 dB(A)
Fronius Primo GEN24 5.0 Plus - Technical Data (HTML) — Technical Data > General Data, 'Sound emissions' = '42 dB(A)'
|
| operating_temperature_c | -40 to +60 |
| pollution_degree | UNKNOWN |
| relative_humidity | 0-100 % |
| salt_mist_resistance | UNKNOWN |
| storage_temperature_c | UNKNOWN |
| uv_resistance | UNKNOWN |
Interfaces & connectors
| ac_terminal_type | 3-pole AC push-in spring terminals 2.5 - 10 mm2; 3-pole backup-power push-in spring terminals 1.5 - 10 mm2; 2x PE screw terminals 2.5 - 16 mm2 and 3x 2.5 - 10 mm2 |
| analog_inputs | UNKNOWN |
| auxiliary_power_output | UNKNOWN |
| backup_eps_terminal | 3-pole backup power push-in spring terminals 1.5 - 10 mm2 |
| battery_terminal_type | 1x BATT+ and 1x BATT- push-in spring terminals 2.5 - 10 mm2 |
| bluetooth | UNKNOWN |
| can | UNKNOWN |
| cellular | UNKNOWN |
| cloud_api | Fronius Solar.web |
| digital_inputs | 6x digital in/out + 6x digital in (interface to ripple control receiver, energy management) |
| dry_contacts | UNKNOWN |
| ethernet | 2x Ethernet LAN |
| generator_start_contact | UNKNOWN |
| generator_terminal | UNKNOWN |
| local_api | Fronius Solar API (JSON) |
| modbus_rtu | Modbus RTU SunSpec (via RS485) |
| modbus_tcp | Modbus TCP SunSpec (via WLAN / Ethernet) |
| mqtt | UNKNOWN |
| ocpp | UNKNOWN |
| programmable_relay | UNKNOWN |
| protocol_notes | Datalogger and web server included as standard - no additional stick required. Open interfaces can be operated in parallel with Fronius Solar.web. |
| pv_connector_type | 4x DC+ and 4x DC- push-in spring terminals 2.5 - 10 mm2 |
| rapid_shutdown_interface | emergency stop (WSD - wired shutdown): Yes |
| relay_outputs | UNKNOWN |
| rs232 | UNKNOWN |
| rs485 | 2x RS485 - Modbus RTU SunSpec (third-party supplier) / Fronius Smart Meter, battery, Fronius Ohmpilot |
| smart_load_output | UNKNOWN |
| sunspec | SunSpec over both Modbus RTU and Modbus TCP |
| usb | UNKNOWN |
| wifi | WLAN |
| zigbee | UNKNOWN |
Controls & display
| audible_alarm | UNKNOWN |
| buttons | UNKNOWN |
| display_type | none (web-based user interface) |
| leds | UNKNOWN |
| local_display | False |
| mobile_app | Fronius Solar.web / Fronius Solar.start (UNKNOWN which exactly - not stated on the fetched page) |
| remote_display_option | UNKNOWN |
| status_indicators | UNKNOWN |
| touchscreen | False |
| web_interface | integrated web server / inverter user interface (Settings menu documented in the operating instructions) |
Protection
| afci | UNKNOWN (not listed for Primo GEN24 Plus) |
| anti_islanding | yes (IEC 62116 certified) |
| ground_fault_protection | fast undervoltage / ground fault protection U<< configurable in backup power mode |
| insulation_monitoring | DC insulation measurement: Yes (Exact / Fast modes, adjustable warning threshold 100,000 - 10,000,000 ohm) |
| integrated_breakers_fuses | UNKNOWN |
| integrated_dc_switch | True |
| over_current | UNKNOWN |
| over_temperature | overload behaviour: operating point shift, power limitation |
| over_voltage | UNKNOWN |
| overvoltage_category | 2 (DC) / 3 (AC), according to IEC 62109-1 |
| protection_class | 1 |
| residual_current_monitoring | continuous residual current monitoring, limit value adjustable 0.03 - 0.3 A; RCMU/FI false-trip mitigation settings |
| reverse_polarity | DC reverse polarity protection: Yes |
| short_circuit | backup-power short-circuit switch-off time configurable 0.001 - 60 s |
| surge_protection | not integrated; optional retrofit DC SPD type 1+2 for 2 MPP trackers, Fronius item number 4,240,313,CK |
| under_voltage | UNKNOWN |
Certifications
| emc | ['IEC 62920', 'interference emission class B', 'ETSI EN 300 328 / ETSI EN 301 489 (radio, listed in the downloads section)'] |
| grid_codes | ['IEC 62116', 'IEC 61727', 'IEC 62909', 'EN 50549-1 (RfG)', 'AS/NZS 4777.2', 'CEI 0-21', 'ABNT NBR 16149', 'ABNT NBR 16150'] |
| other | ['LCA Review Report Fronius GEN24 Plus', 'TUEV factory inspection 2025'] |
| regional | ['UNKNOWN'] |
| safety | ['IEC 62109', 'IEC 62109-1', 'IEC 62109-2', 'IEC 62477-1', 'IEC 62368-1'] |
Warranty & service
| conditions | UNKNOWN |
| cycle_life | UNKNOWN |
| design_life_years | UNKNOWN |
| extended_options_years | UNKNOWN |
| fan_replaceable | yes (INFERRED, see field_replaceable_parts) |
| field_replaceable_parts | ['fan (INFERRED from the Fan test function description in the operating instructions)'] |
| fuse_replaceable | UNKNOWN |
| service_intervals | UNKNOWN |
| standard_years | UNKNOWN |
Packaging & logistics
| gross_weight_kg | 19 |
| package_depth_mm | UNKNOWN |
| package_height_mm | UNKNOWN |
| package_width_mm | UNKNOWN |
| transport_restrictions | UNKNOWN |
| units_per_pallet | UNKNOWN |
Documents
certificate
{# Located but never retrieved: listed, but deliberately not linked, and it
backs no stored value. #}
Fronius Primo GEN24 certificates portal — located, not retrieved
rev UNKNOWN
installation-manual
Fronius Primo GEN24 3 - 6 kW / 3 - 6 kW Plus / 3 - 6 kW SC / 3 - 6 kW SC Plus Operating instructions (HTML)
rev 043-01092026
Documented compatibility
Documented pairings only. A product absent here has no fetched document naming the pairing — that is not a statement that it fails.
inverter_battery
BYD Battery-Box Premium HVS 12.8
COMPATIBLEofficially-verified
https://www.fronius.com/en-gb/uk/solar-energy/installers-partners/technical-data/all-products/inverters/fronius-primo-gen24-plus/fronius-primo-gen24-5-0-plus (fetched 2026-09-01)
BYD Battery-Box Premium HVS 5.1
COMPATIBLEmanufacturer-documented
BYD Battery-Box Premium HVS&HVM Compatible Inverter List V2.21 (2025-08-20)
BYD Battery-Box Premium HVM 11.0
COMPATIBLEmanufacturer-documented
BYD Battery-Box Premium HVS&HVM Compatible Inverter List V2.21 (2025-08-20)
inverter_meter
Fronius Smart Meter TS 65A-3
COMPATIBLEmanufacturer-documented
Fronius Smart Meter TS 65A-3 Operating Instructions 42,0426,0349,EN 006-05082020, https://www.europe-solarstore.com/download/fronius/monitoring-and-control/Fronius_Smart_Meter_TS_65A-3_operating_instructions.pdf (fetched 2026-09-01); corroborated by the RS485 interface row on https://www.fronius.com/en-gb/uk/solar-energy/installers-partners/technical-data/all-products/inverters/fronius-primo-gen24-plus/fronius-primo-gen24-5-0-plus ('2x RS485 - Modbus RTU SunSpec (third-party supplier) / Fronius Smart Meter,
Recorded conflicts
max_short_circuit_current_per_mppt_a Review required
41.25 / 22 A — Fronius UK technical-data page, 'Max. short circuit current, module array*', with footnote 'Isc pv = Isc max >= Isc (STC) x 1,25'
33 / 18 A — Fronius Quick Start Guide 42,0410,2367 035-29042024, 'Max. short-circuit current (ISC PV = ISC max) 33 A (MPPT1) / 18 A (MPPT2)' for Primo GEN24 3-6 kW
The two documents apply the IEC 60364-7-712 / AS-NZS 5033 1.25 design factor differently: 33 x 1.25 = 41.25 exactly, so the technical-data page publishes the already-multiplied design value while the quick start guide publishes the array Isc. Use 33/18 A as the module-array Isc(STC) limit and 41.25/22 A as the Isc-max design figure.
max_short_circuit_current_per_mppt_a Review required
41.25 / 22 A — Fronius UK technical-data page, 'Max. short circuit current, module array*', with footnote 'Isc pv = Isc max >= Isc (STC) x 1,25'
33 / 18 A — Fronius Quick Start Guide 42,0410,2367 035-29042024, 'Max. short-circuit current (ISC PV = ISC max) 33 A (MPPT1) / 18 A (MPPT2)' for Primo GEN24 3-6 kW
The two documents apply the IEC 60364-7-712 / AS-NZS 5033 1.25 design factor differently: 33 x 1.25 = 41.25 exactly, so the technical-data page publishes the already-multiplied design value while the quick start guide publishes the array Isc. Use 33/18 A as the module-array Isc(STC) limit and 41.25/22 A as the Isc-max design figure.
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| AC voltage range (Umin - Umax) | 155 - 270 V |
| Back-up power | 1~NPE 220 V / 230 V; nom. output current 22,7 A (220 VAC) / 21,7 A (230 VAC) |
| Dynamic Peak Manager mode 'On (MLSD)' | Optimized for systems with Module Level Shutdown devices (MLSD); not suitable for PV optimizers |
| European efficiency (etaEU) | 96.3 / 97.2 / 96.7 (230Vdc / 400Vdc / 530Vdc) |
| Frequency in backup power mode | 53 Hz |
| Grid connection (Uac,r) | 1~ NPE 220/230 V |
| Interference emission class | B |
| Inverter design | Transformerless |
| Leakage current factor to reduce RCMU/FI false tripping | 0 - 0.25 (default 0.16) |
| MPP adaptation efficiency | 99.9 |
| Max. AC output current | 27,5 A |
| Max. efficiency (PV - grid) | 97,6 % |
| Max. switchover time PV-Point / Full Backup | 15 s / 10 s |
| Night-time consumption | < 10 W |
| Nominal input voltage (Udc,r) | 400 V |
| Number of DC connections | 2+2 |
| Output Data PV Point - Max continuous output power | 3000 VA |
| RCD recommendation | Fronius recommends a residual current circuit breaker suitable for frequency inverters with a release current of at least 100 mA |
| Usable MPP voltage range | 65 - 530 V |