LR-4125 AutomationDirect

LR-4125 AutomationDirect Filter Modules

Product  Description：

AutomationDirect Filter Modules are specialized electronic devices designed to protect sensitive control circuits and industrial equipment from harmful electromagnetic interference, radio frequency interference, and electrical line noise. These modules function as protective barriers, smoothing out voltage distortions and blocking high-frequency noise spikes generated by switching components like variable frequency drives, servo amplifiers, and switching power supplies. By stabilizing the electrical environment, they prevent logic errors, data corruption, and premature component degradation within automation systems.

Product Parameters

The technical profile of AutomationDirect Filter Modules focuses on electrical attenuation, current capacity, and frequency suppression:

• Rated Voltage: Supports standard industrial power configurations, including 120V AC, 230V AC (single-phase), and up to 480V AC (three-phase), as well as dedicated 24V DC configurations for low-voltage control loops.

• Rated Current: Available in a wide spectrum of current capacities, ranging from 1 Amp for delicate signal line protection up to 30 Amps or more for main power incoming lines.

• Operating Frequency: Designed for global utility networks operating at 50Hz and 60Hz, while filtering out harmonic frequencies up to several megahertz.

• Insertion Loss: High attenuation performance, often providing 30 decibels to 60 decibels of noise reduction across the target high-frequency bands.

• Leakage Current: Engineered to maintain ultra-low leakage current levels, typically under 3.5 milliamperes, ensuring compliance with strict industrial safety and ground-fault regulations.

• Housing and Mounting: Features robust, compact enclosures designed for space-saving DIN rail mounting or standard panel mounting inside electrical control enclosures.

Product Advantages

Integrating AutomationDirect Filter Modules into an automation panel provides several key performance and reliability benefits:

• Mitigation of Ghost Faults: Effectively eliminates intermittent control system resets, erratic sensor readings, and mysterious PLC CPU faults caused by ambient electrical noise.

• Equipment Longevity: Protects downstream microelectronics, human-machine interfaces, and power supplies from high-voltage transients, extending the overall lifecycle of control components.

• Regulatory Compliance: Helps industrial machinery meet stringent electromagnetic compatibility standards, which is often required for CE certification and global export.

• Dual-Directional Filtering: Suppresses incoming line noise to protect the control panel while simultaneously trapping noise generated inside the panel, preventing it from feeding back into the facility's main power grid.

• Maintenance-Free Operation: Passive circuit design utilizing high-quality inductors and capacitors ensures long-term operational reliability without the need for routine maintenance or software updates.

Product Applications

These modules are widely deployed across various automated environments to ensure clean power delivery:

• Variable Frequency Drive Enclosures: Placed on the line side of VFDs to suppress the massive high-frequency switching noise inherent to inverter technology.

• PLC Control Panels: Installed directly upstream of Programmable Logic Controllers, distributed I/O racks, and sensitive communication modules.

• Precision Instrumentation Systems: Providing isolated, clean power to electronic weigh scales, flow meters, and temperature transmitters that are highly susceptible to signal distortion.

• CNC and Robotic Systems: Protecting the high-speed microprocessor controls of machining centers from the inductive spikes caused by large motor starters and contactors.

• Medical and Laboratory Equipment: Ensuring stable, noise-free power for testing apparatus and processing equipment located near industrial manufacturing zones.

Important Precautions

To maximize the effectiveness of the filter module and ensure electrical safety, follow these guidelines:

• Correct Location: Install the filter module as close as possible to the point of power entry or the specific noise source. Long wire runs between the filter and the device can act as antennas, re-introducing noise into the circuit.

• Separation of Wiring: Strictly separate the input wires (dirty side) from the output wires (clean side) within the wire duct. Bundling filtered and unfiltered wires together allows noise to cross over via electromagnetic induction, bypassing the filter entirely.

• Grounding Integrity: The filter module requires a low-impedance connection to the central ground busbar. Use a short, thick grounding strap or wire and ensure the mounting surface is free of paint and non-conductive coatings to establish proper earth grounding.

• Current Derating: Do not exceed the continuous current rating of the module. When installing filters in high-temperature enclosures, consult the manufacturer's derating curves, as the current capacity decreases as the ambient temperature rises.

• Voltage Rating Verification: Always verify that the line voltage matches the module specification. Applying three-phase power to a single-phase module, or exceeding the maximum rated voltage, will result in immediate internal component failure and potential fire hazards.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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