FN3256H-25-33 Power Line Filters by Schaffner – Reliable EMI Suppression for Industrial Systems

The Power Line Filters FN3256H-25-33 by Schaffner Devices are designed to deliver superior EMI suppression, ensuring stable and clean Power in demanding applications. These filters are part of Schaffner’s trusted portfolio, offering proven performance for Power Condition and compliance with international standards. Engineers worldwide choose Power Line Filters by Schaffner for their reliability in protecting sensitive equipment from electromagnetic interference.

In this blog, we’ll explore specifications, features, applications, installation details, and the benefits of sourcing from Xon Electronics.

Technical Specifications of FN3256H-25-33

• Manufacturer: Schaffner

• Part Number: FN3256H-25-33

• Category: Power, Power Condition, Power Line Filters by Schaffner

• Current Rating: 25A

• Voltage Rating: 250VAC

• Filter Type: Three-phase EMI filter

• Operating Frequency: 50/60Hz

• Compliance: UL, CSA, and IEC standards

Key Features of FN3256H-25-33 Power Line Filter

• Excellent EMI Suppression – Reliable protection for sensitive electronics.

• High Current Handling – Supports up to 25A at 250VAC.

• Robust Design – Built for industrial and commercial environments.

• Compact Size – Space-saving design for easy panel integration.

• Certified Safety – Meets global safety and Power Condition standards.

These features make the FN3256H-25-33 Power Line Filters by Schaffner essential in applications requiring stable and interference-free Power.

Applications of FN3256H-25-33

The FN3256H-25-33 Power Line Filters by Schaffner are widely used in environments where reliable Power Condition is critical:

• Industrial automation systems

• Machine tools and factory equipment

• HVAC and power distribution panels

• Renewable energy inverters

• Medical and telecom devices

By delivering consistent Power, these filters help extend equipment life and ensure regulatory compliance.

Installation and Use Case

Installing the FN3256H-25-33 is straightforward, with standard terminal connections for three-phase systems.

Use Case Example:
A manufacturing facility faced frequent malfunctions in sensitive CNC machinery due to EMI noise. By integrating FN3256H-25-33 Power Line Filters by Schaffner, the plant achieved stable Power Condition, reducing downtime and improving productivity.

Download Datasheet for FN3256H-25-33

Need detailed specs, compliance certifications, or installation diagrams?

Download FN3256H-25-33 Datasheet from Xon Electronics

Why Buy from Xon Electronics?

Xon Electronics supplies a complete range of Power Line Filters by Schaffner, including the FN3256H-25-33, with:

• 100% Genuine Schaffner Devices
• Worldwide Delivery – USA, India, Australia, Europe & beyond
• Bulk Discounts for OEMs and Distributors
• Technical Support for system integration
• Secure and Reliable Ordering

Order from www.xonelec.com today and secure clean, reliable Power for your systems.

Conclusion

The FN3256H-25-33 Power Line Filters by Schaffner Devices are engineered for effective EMI suppression, reliable Power Condition, and compliance with international standards. Ideal for industrial and commercial systems, these filters ensure stability and long-term equipment protection. Available now at Xon Electronics with global shipping to the USA, India, Australia, Europe, and other regions.

FAQs – FN3256H-25-33 Power Line Filter

Q1. What is the current and voltage rating of FN3256H-25-33?
It supports 25A at 250VAC.

Q2. Is it suitable for three-phase systems?
Yes, it is designed for three-phase Power applications.

Q3. Does it meet global compliance standards?
Yes, it complies with UL, CSA, and IEC standards.

Q4. Where is it used most commonly?
In industrial automation, medical equipment, and renewable energy systems.

Q5. Can I order globally?
Yes, Xon Electronics ships worldwide, including USA, India, Australia, Europe, and more.

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In the field of electronics, a choke is defined as an inductor which is used to block higher-frequency while passing Alternating Current (AC) of lower frequencies and Direct Current (DC) in an electrical circuit. A choke generally comes with a coil made up of insulated wire generally wound on a magnetic core, albeit some comprise of a donut molded "globule" of ferrite material hung on a wire. The impedance of the choke increases with the increase in the frequency. Because of the low electrical resistance, it passes both the DC and AC with a little amount of power dissipation. The amount of AC passed is limited due to its reactance.

The name “choking” is derived from blocking as it blocks high frequencies while passing low frequencies. It is a functional name. The word – “choke” is used for all the inductor that helps in decoupling or blocking higher frequencies, but the electrical component is simply known as an inductor if it is used in tuned circuits or electronic filters. Inductors that are designed for the utilization as chokes are generally recognized by not having the low-loss construction (high Q factor).

Common Mode Choke

The CMC or the Common Mode Choke, where two curls are twisted on a solitary center, is helpful for the suppression of RFI (Radio Frequency Interference) and Electromagnetic Interference (EMI) from the power supply lines. It also prevents the malfunctioning of power electronics devices. It passes both equal as well as different current while blocking common mode currents. The magnetic flux generated by differential mode (DM) currents in the solid core will in general cancel each other since the windings are negatively coupled. Thus, the choke provides little impedance or inductance to DM currents. Commonly this also suggests that the core won't soak for a huge amount of DM currents and the heating effect of the winding resistance will determine the maximum current rating. However, the CM current gets a high amount of impedance because of the summed inductance of the positively coupled windings.

CM chokes have found its use in electrical, telecommunications, and industrial applications to either decrease or remove noise and some other linked electromagnetic interference.

Whenever the CM current is conducted by the CM choke, most of the magnetic flux initiated by the windings is restricted with the inductor core because of its high permeability. Here, the leakage flux is very low. But still, the DM current which flows through the windings will produce a high amount of magnetic field as the windings are negatively coupled. A twisted winding structure is used with the CM choke to decrease this near magnetic field emission.

The difference between the conventional balanced 2 winding common mode choke and the balanced twisted windings common mode choke is that the windings cooperate in the focal point of the center open window.

This was all we have regarding Common Mode Chokes. Hope you liked going through the article. Brands that manufacture them are Kemet, Schaffner, and Murata. Make sure to check them out using the links as provided.

View all our Common Mode Chokes