Fronius

Fronius Backup Controller 3PN-35A for Germany

SKU: 2411

✓︎ Automatic backup power supply with 35 A / 24 kVA
✓︎ Three-phase for TN-C-S, TN-S and TT grids
✓︎ Easy DIN rail mounting in the switch cabinet

Available from: 13.11.2026 (Pre-orders possible)

Delivery time: ca. 7 weeks

449,00 €

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Fronius Backup Controller 3PN-35A for Germany

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Description

Fronius Backup Controller 3PN-35A automatically keeps your household supplied with solar power in the event of a grid outage. The three-phase controller independently switches your Fronius PV system into backup power mode, delivering a rated output of 24 kVA at 35 A. This ensures a reliable power supply even during blackouts and grid disturbances.

Key Benefits for Your System

Automatic switchover: The Backup Controller detects a grid outage independently and establishes backup power without any action on your part.
Full household supply: With a rated output of 24 kVA and a rated current of 35 A, you can keep your entire home supplied three-phase.
Broad grid compatibility: Suitable for TN-C-S, TN-S and TT grids, making it flexible for use in various household installations.
Simple installation: Mounted on a DIN rail, it can be integrated into the switch cabinet in a space-saving way.

Reliable Backup Power for Your Home

The Fronius Backup Controller 3PN-35A is the ideal addition for anyone who wants to remain independent even during grid disturbances. Combined with a Fronius Primo or Symo GEN24 Plus as well as the Fronius Verto Plus, the Backup Controller automatically switches your photovoltaic system into backup power mode as soon as the public grid fails. This way, your supply of self-generated solar power continues seamlessly without any intervention on your part. The fault-ride-through (FRT) capability ensures stable operation even during brief grid fluctuations. Suitable for use up to an altitude of 2000 m, the controller can be used in a wide variety of settings. Combined with a battery storage system, you gain maximum security and independence for your household.

GENERAL DATA (Basic information about the controller)
Manufacturer	Fronius
Model	Backup Controller 3PN-35A
Compatible inverters	Fronius Primo & Symo GEN24 Plus, Fronius Verto Plus
Mounting	DIN rail
Protection rating	IP20
Certificates	IEC 60947-6-1
ELECTRICAL SPECIFICATIONS (Power & Voltage)
Rated voltage	3~ 230/400 V
Rated current	35 A
Frequency	50 Hz
Rated output	24 kVA
Utilization category	AC-32
Fault-ride-through capable (FRT)	Yes
Grid types	TN-C-S, TN-S, TT
OPERATING CONDITIONS & DIMENSIONS (Environment, weight, dimensions)
Ambient temperature range	-20 to +50 °C
Maximum altitude	2000 m
Weight	856 g
Dimensions (H × W × D)	100 x 198 x 66 mm
CONNECTION (Cross-sections)
Min. cross-section (neutral to smart meter)	1 mm²
Min. cross-section (phase/neutral conductor)	2.5 mm²
Max. cross-section (phase/neutral conductor)	10 mm²
Min. cross-section (data communication)	0.14 mm²
Max. cross-section (data communication)	1.5 mm²