Description

Used product. Schaffner FS24840-250-28 EMC/RFI filter, intended for use on high-voltage DC lines, particularly in power applications and photovoltaic systems. The component marking identifies a maximum voltage of 1100 VDC and a current rating of 250 A at 55°C.

⚙️ Technical Specifications

• Brand: Schaffner
• Model: FS24840-250-28
• Type: DC EMC/RFI filter
• Maximum voltage: 1100 VDC
• Rated current: 250 A @ 55°C
• Climatic category: 25/100/21
• Connections: L1 – L2 – PE
• Construction: metal enclosure
• Material code: 803415
• Made in China
• Visible marking: 0914R

⚡ Function

The filter is used for the reduction of conducted electromagnetic interference on DC lines, limiting the propagation of interference generated by power electronic equipment.
It is suitable for high-power systems where high current and voltage ratings are required, with particular interest in inverters and photovoltaic systems.

🔌 Connections

The enclosure is marked with the L1, L2, and E/PE terminals. The PE connection allows the enclosure and filter circuit to be connected to protective earth.
The power connections are made using high-current metal terminals, visible in the photographs.

🏭 Construction and Condition

Robust Schaffner metal enclosure for industrial installation, with power terminals and earth connection.
The component is used and shows evident signs of previous installation, including scratches, abrasions, and superficial oxidation on the terminals and hardware. No structural breaks in the enclosure are visible.

🌐 Applications

Suitable for:

• photovoltaic inverters
• high-power DC systems
• industrial equipment
• electronic power conversion systems
• EMC/RFI filtering on DC lines
• replacement of equivalent Schaffner filters, subject to compatibility verification.

🛡️ Safety

⚠️ 1100 VDC and 250 A constitute extremely dangerous electrical levels. The filter must only be installed and inspected by qualified personnel. Before intervention, it is essential to completely disconnect the circuit, verify the absence of voltage, and consider any residual energy present in the system.

📦 Package Contents

• 1 × Schaffner FS24840-250-28
• complete filter as shown in the photographs.

🚀 Final Description

The Schaffner FS24840-250-28 is a high-power DC EMC/RFI filter, with ratings of 1100 VDC and 250 A @55°C. Its metal construction and power terminals make it suitable for industrial applications and power electronic systems, including photovoltaic installations and inverters. The exact photographed code is FS24840-250-28, associated with Schaffner code 803415.