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Siemens LFR3S250L Three-Phase Filter

Name: Siemens LFR3S250L
Brand: Siemens
SKU: LFR3S250L
Availability: InStock

Siemens LFR3S250L three-phase filter for EMI/RFI reduction.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

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ManufacturerSiemens

Part numberLFR3S250L

Voltage 400-480V AC

Current 250A

Phases 3

Frequency 50/60Hz

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Response within 1 business hour

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12-month warranty

All units tested

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Same-day dispatch

Order by 2pm CST

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Worldwide delivery

US, EU, Asia, Middle East

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Veteran-owned

CAGE: 9NK75

High EMI/RFI attenuation Three-phase operation Robust construction Designed for VFD applications Reduces conducted emissions Improves system reliability

Product description

The Siemens LFR3S250L is a high-performance three-phase filter designed to reduce electromagnetic interference (EMI) and radio frequency interference (RFI) in motor drive systems. It ensures compliance with EMC directives and protects sensitive equipment from electrical noise.

This filter is essential for applications involving variable frequency drives (VFDs), servo drives, and other motor control systems where EMI mitigation is critical. Industries benefiting from this include manufacturing, automation, and machine building.

Stanlo Automation, a veteran-owned surplus industrial automation parts distributor, offers the Siemens LFR3S250L. We provide cost-effective solutions for your automation needs, ensuring you get the parts you need to keep your systems running. Source your Siemens LFR3S250L from Stanlo Automation.

Technical specifications

Voltage	400-480V AC
Current	250A
Phases	3
Frequency	50/60Hz
Attenuation	High
Mounting	Frame mount
Compliance	EMC Directives

Common applications

Variable Frequency Drives (VFDs)

Servo drives

Motor control centers

Industrial automation

Machine tools

Pump controls

Compatible systems

Designed for use with Siemens and other manufacturers' three-phase AC motor drives operating within the specified voltage and current ratings.

Also known as

Siemens LFR3S250L filter LFR3S250L 3-phase EMI filter Siemens motor drive filter

Replaces / compatible with

Replaces older or inadequate filters in three-phase motor drive systems requiring effective EMI/RFI suppression.

Technical note

Expert tip

Proper grounding of the filter is crucial for effective EMI/RFI attenuation; ensure a solid connection to the equipment chassis.

What happens next?

Email confirmation

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Frequently asked questions

What is the primary function of the Siemens LFR3S250L filter?

The primary function of the Siemens LFR3S250L filter is to significantly reduce electromagnetic interference (EMI) and radio frequency interference (RFI) generated by motor drives. This helps ensure compliance with EMC regulations and protects sensitive electronic equipment.