Description
Used product. Schaffner FN3270H-35-33 three-phase EMC/RFI filter, designed to reduce electromagnetic interference in industrial equipment, inverters, drives, and conversion systems. The filter is a single-stage Delta three-phase type, with LINE/LOAD L1-L2-L3 connections and grounding.
⚙️ Technical Specifications
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Brand: Schaffner
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Model: FN3270H-35-33
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Type: three-phase EMC/RFI filter
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Voltage: 3 × 520/300 VAC
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Frequency: 50–60 Hz
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Rated current: 35 A @ 50°C
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Configuration: Delta, 3 wires + earth
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Stages: 1
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Mounting: chassis/panel
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Connections: screw terminals
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Leakage current: approx. 3.4 mA
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Operating temperature: −25…+100°C
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Recommended torque: 1.5–1.8 Nm
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Climatic category: 25/100/21
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Visible approvals: ENEC, UL, CSA
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Made in Thailand
The data are consistent with the Schaffner technical datasheet: the FN3270H-35-33 is classified as a 35 A, 520 VAC three-phase filter, with input/output terminals and applications for inverters and Power Drive Systems.
⚡ Function
The filter is installed between LINE and LOAD and is used to attenuate high-frequency conducted interference, reducing interference generated by power electronic equipment and limiting its propagation toward the mains.
🔌 Connections
The following are clearly identified:
LINE: L1 – L2 – L3
LOAD: L1' – L2' – L3'
PE: earth connection.
The component also carries the warning “HIGH LEAKAGE CURRENT – first connect to earth!”: the earth connection must therefore be made before the power conductors.
🏭 Product Condition
Used filter, with normal signs of previous installation, small scratches and abrasions on the metal enclosure and terminals. The structure appears intact.
🌐 Applications
Suitable for inverters, motor drives, frequency converters, Power Drive Systems, and industrial equipment where EMC/RFI interference reduction is required.
🛡️ Safety
⚠️ Component for a three-phase network up to 520 VAC and 35 A. Installation must be carried out by qualified personnel, respecting the PE → L1/L2/L3 sequence indicated by the manufacturer and the 1.5–1.8 Nm tightening torque.
📦 Package Contents
- 1 × Schaffner FN3270H-35-33
- complete filter as shown in the photographs.
🚀 Final Description
The Schaffner FN3270H-35-33 is a 35 A three-phase EMC/RFI filter, with nominal voltage of 3 × 520/300 VAC 50–60 Hz, single-stage Delta configuration, L1-L2-L3 / L1'-L2'-L3' connections, and PE. It is a professional component for inverters and industrial power systems, with compact construction and screw terminals. The technical documentation confirms 35 A, 520 VAC, 3.4 mA leakage current, and −25…+100°C.
