Fronius DC SPD Type 1+2 GEN24 – Retrofit surge protection

The Fronius DC SPD Type 1+2 GEN24 This is a retrofit kit for GEN24 inverters with DC overvoltage protection. The kit, manufacturer number 4,240,313,CK, is installed inside the device and includes the necessary connection components. It supplements the protection concept of the photovoltaic system. Selection and installation must be compatible with the exact inverter model and a professionally planned electrical installation.

Delivery

1× DC-SPD board type 1+2 GEN24 (4,240,313,CK)
4× TX20 screws
1× protective conductor
1 x two-pole signal cable
1× PV cable
1× PV+ cable
1x supplementary sheet

Produktvorteile

-- Retrofittable protective function
The set complements the DC overvoltage protection of an approved inverter.

-- Connection components included
Protective conductors, signal and PV lines are included in the documented set.

-- Installation in the device
The design intended for GEN24 is attached to the inverter according to the manufacturer's specifications.

Compatibility

Retrofit option for approved Fronius GEN24 models. The exact device version and the current installation instructions must be checked before installation. Installation must be carried out by a qualified electrician with the power off. This kit does not replace the planning of external lightning and surge protection.

Technical information

-- Manufacturer number: 4,240,313,CK
-- Product type: Retrofit DC surge protection
-- Protection type: Type 1+2
-- System family: Fronius GEN24, note model release
-- Installation location: In the inverter
-- Connection: PV+ and PV−, protective conductor and signal cable
-- Signal line: 2-pin
Included mounting hardware: 4 screws TX20

Matching accessories and related products

For further planning of a Fronius system: The Smart Meter IP records energy flows, while the backup switch handles manual grid switching in an approved backup configuration. Both perform independent functions and are not components of this DC surge protection set. The selection depends on the specific inverter and system design.

-- Fronius Smart Meter IP 5kA-3 42,0411,0347

-- Fronius Backup Switch 1PN/3PN-63A 4,050,222

Other Fronius products for comparison:

-- Fronius Symo GEN24 8.0 Plus SC – 8 kW hybrid inverter, 3-phase

-- Fronius Symo GEN24 6.0 Plus SC – 6 kW hybrid inverter, 3-phase

Why Mini Power

Mini Power describes the Fronius DC-SPD retrofit kit as a clearly defined accessory. The exact manufacturer's part number and the individually listed connection components facilitate verification by your specialist company before ordering. It is crucial that the set, inverter, and protection concept are compatible. Therefore, the documented functionality is the focus here. Use this information together with the current device manual to determine the required GEN24 surge protection to select appropriately and to prepare for installation.

Frequently asked questions

-- Is this a complete inverter?

No. It is a DC surge protection accessory kit.

-- Is installation possible without a qualified electrician?

The electrical installation and testing must be carried out by a qualified electrician.

-- Does the set fit every Fronius device?

No. It's a GEN24 retrofit option. The decisive factor is the approval for the exact inverter model.