3NF-30

The 3NF-30 mains EMI filter from Kollmorgen is a high-performance component in the Mains EMI Filters series designed to protect sensitive drive systems from electromagnetic interference. This compact unit features a Nominal Current: 30 A rating and operates at 480 VAC, making it suitable for three-phase industrial power environments. With a Weight: 1.2 kg profile and an overall footprint defined by Dimension A: 270 mm, Dimension B: 50 mm, and Dimension C: 85 mm, the filter balances space efficiency with robust construction. Mechanical attachment is ensured via Bolt: M5, 2.2 Nm, while its Terminals: 10 mm², 1.9…2.2 Nm torque rating supports secure electrical connections. Specified for a Temperature: 50°C environment, the 3NF-30 filter adheres to stringent thermal requirements early in the installation phase.

Optimized to reduce harmonic distortion and ground leakage currents, the 3NF-30 employs a three-phase filter topology that attenuates both common-mode and differential-mode noise. The device maintains low leakage current characteristics while reliably handling peak loads from connected servo amplifiers in the AKD product family. Internally, the filter protects downstream electronics by isolating high-frequency noise, and its live power terminals remain energized for up to ten minutes after mains disconnection, emphasizing the need for compliance with safety procedures. Dimensional details such as Dimension D: 240 mm, Dimension F: 255 mm, and Dimension G: 30 mm allow precise panel integration, while Dimension M: 5.4 mm and Dimension P: 260 mm ensure standardized mounting clearances in control cabinets. The IP20 protection rating further requires installation within a dedicated enclosure to prevent ingress and maintain performance integrity.

Built for rigorous industrial automation environments, the 3NF-30 mains filter offers dependable reliability over extended service cycles. Its robust design mitigates electromagnetic interference without compromising efficiency, minimizing energy loss in critical motion control applications. Integration with Kollmorgen’s AKD drive series is seamless, with connection diagrams provided to guide correct wiring and grounding. Fixed mounting requirements and clear de-energization procedures support safe handling and maintenance, while the broad operating temperature range up to 50°C ensures suitability for diverse factory conditions. Ideal for servo systems, process automation, and precision machinery, the 3NF-30 delivers consistent EMI suppression where uninterrupted operation is paramount.