Description
Used product. The Schaffner FS24839-180-28 is a high-current 3-phase EMC filter, designed to reduce conducted electromagnetic interference on the power lines of industrial equipment, inverters, converters, and power systems. The photographed model is clearly identified as FS24839-180-28.
The nameplate shows 3×480 V, 50/60 Hz and a rated current of 180 A at 55 °C. The component has LINE input and LOAD output, with L1, L2, L3 and PE connections. The documentation and industry databases confirm the exact code FS24839-180-28.
⚙️ Technical Specifications
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Brand: Schaffner
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Model: FS24839-180-28
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Type: 3-phase EMC mains filter
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Rated current: 180 A @ 55 °C
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Rated voltage: 3×480 VAC
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Frequency: 50/60 Hz
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Configuration: 3-phase
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Input connections: LINE – L1 / L2 / L3 / PE
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Output connections: LOAD – L1' / L2' / L3' / PE
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Earth connection: Dedicated PE
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Specified tightening torque: 15–17 Nm
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Temperature class: 25/100/21
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Construction: Shielding metal housing
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Installation: Panel/frame mounting
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Visible certifications: cURus 600 V and ENEC 14
The FS24839-180-28 code is also listed in Schaffner databases and industrial distribution systems.
⚡ Function in the Electrical System
The filter is installed in series between the 3-phase supply and the load, with the LINE side facing the power supply and the LOAD side facing the equipment.
Its function is to attenuate high-frequency conducted interference, limiting the propagation toward the electrical network of disturbances generated by power electronic equipment.
It is particularly suitable for systems with inverters, static converters, motor drives, industrial power supplies, and high-power equipment.
🏭 Construction & Installation
The filter is housed in a robust metal enclosure and features high-current power terminals suitable for the rated current of 180 A.
The photographs clearly show the 3-phase connections and the central PE terminal. Connections must be made while strictly observing the LINE/LOAD designation and the tightening torque specified on the nameplate.
The nameplate also carries the warning:
“High leakage current, first connect to earth!”
It is therefore essential to make the PE connection before the power conductors, as specified by the manufacturer.
🌐 Applications
The FS24839-180-28 is used in:
- 3-phase inverters
- Power converters
- Industrial drives
- High-current power supply systems
- Industrial electrical switchboards
- Photovoltaic systems and conversion equipment
- Applications requiring high electromagnetic compatibility (EMC)
The exact model is also available on the market as a 3×480 VAC / 180 A filter, with a new-product price of approximately €270 + VAT from a specialist retailer.
🛡️ Safety & Product Condition
The component is used and shows normal installation marks, superficial scratches, and handling traces on the metal housing and terminals.
No significant structural breaks are evident in the photographs. Electrical operation is not declared unless specifically tested.
The filter must be installed exclusively by qualified personnel. Before use, it is advisable to verify insulation, PE continuity, terminal integrity, connection tightening, and correct LINE/LOAD connection.
Due to the presence of leakage current, the earth connection is particularly important. The component must be completely disconnected from the power supply and secured before any intervention.
📦 Package Contents
- 1 × Schaffner FS24839-180-28
- 180 A 3-phase EMC filter
- Metal housing and power terminals as shown in the photographs
🚀 Final Description
The Schaffner FS24839-180-28 is a 180 A industrial 3-phase EMC filter, designed for power systems supplied at 3×480 VAC, 50/60 Hz. Its LINE/LOAD configuration, robust metal construction, and high-current connections make it particularly suitable for inverters, converters, and industrial drives where reduction of conducted interference is essential. The exact code remains listed in industrial component databases and the new product is marketed as a 3×480 VAC, 180 A filter.
