📝 Description
Used product – Original KOSTAL electronic board for PIKO 10.1 photovoltaic inverters, identified by the DC-Anschluss-LP marking and code 100 532 34. The board is the connection and filtering module for the inverter's DC section and integrates three separate filter circuits, with inductors, capacitors, and noise-suppression components.
Code 100 532 34 is commercially associated with the KOSTAL PIKO 10.1 DC Filter / DC-Anschluss-LP.
⚙️ Main Specifications
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Manufacturer: KOSTAL
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Application: PIKO photovoltaic inverter
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Associated model: PIKO 10.1
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PCB code: 100 532 34
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Designation: DC-Anschluss-LP / DC Filter
- Board for the DC section
- Three separate filter circuits
- Filter inductors L1, L2, L3
- Film capacitors and suppression components
- DC power connectors
- Auxiliary connection via flat cable
- Power PCB with traces sized for the DC section.
🔧 Main Functions
- Connection of the inverter's DC section
- Filtering of electrical interference generated during conversion
- Reduction of high-frequency components present on the DC line
- Separation and filtering of the three input circuits
- Transfer of DC energy to the subsequent inverter stages.
🔌 Purpose and Operation
The board is located in the DC input section of the KOSTAL PIKO 10.1.
The three sections visible on the PCB use inductors and capacitors to provide electrical filtering. The filter helps limit conducted interference and high-frequency components, improving and stabilizing operation of the conversion stage.
It is not a control or communication board: it is a power/passive module of the DC section.
🧩 Compatibility
The exact documented correspondence for code 100 532 34 is:
- KOSTAL PIKO 10.1
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PIKO 10.1 DCS
For replacement, it is nevertheless essential to verify PCB code, revision, connector layout, and inverter configuration, as other DC boards with different codes are present within the PIKO family. The spare-parts market distinguishes this board from the DC Trennstelle/DC Switch assembly of the PIKO.
⚠️ Typical Faults and Symptoms
An anomaly in the DC filter board may be associated with:
- inverter failing to start
- anomalies in the DC input section
- protection tripping
- loss or reduction of power from the PV field
- abnormal DC voltages
- noise or overheating of the inductors
- damaged or degraded capacitors
- burn marks on traces or terminals.
These symptoms do not automatically identify the board as faulty: the PV field, DC wiring, connectors, and power stage must also be checked.
🚨 Possible Associated Errors
Any errors related to DC voltage, insulation, PV input, or the power stage may have multiple causes. The filter board should therefore be considered one of the possible components to be checked, and not the certain cause of the error.
🔍 Diagnosis
Verification may include:
- visual inspection of capacitors and inductors;
- checking the DC terminals;
- checking for damaged traces;
- checking for short circuits or leakage between the various circuits;
- checking inductors L1–L3;
- checking the filter capacitors;
- checking the flat cable and its connector;
- testing the board installed in the inverter.
🛠️ Common Services in Case of Failure
- DC board diagnostics
- Continuity testing
- Capacitor inspection
- Inductor inspection
- Checking and restoring connections
- Complete board replacement
- Recovery as an original spare part from a decommissioned inverter.
🛠️ Applications
Suitable for:
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KOSTAL PIKO 10.1 maintenance
- PIKO inverter repair
- DC filter board replacement
- inverter recovery for spare parts
- restoration of the photovoltaic input section.
📦 Package Contents
- 1 × KOSTAL PIKO DC Filter / DC-Anschluss-LP board
- Code 100 532 34
- Flat connection cable as shown in the photograph.
🟢 Summary
KOSTAL PIKO 10.1 DC filter board, code 100 532 34, used in the inverter's DC input section. It integrates three filtering circuits with inductors and capacitors and is identified on the spare-parts market as PIKO 10.1 DC Filter / DC-Anschluss-LP 100 532 34.
Safety Note: The board belongs to the inverter's DC power section; before any intervention, the equipment must be completely disconnected and the absence of voltage verified by qualified personnel.
