ZB5AS844 SCHNEIDER

ZB5AS844 SCHNEIDER Filter Modules

Product  Description：

Schneider Electric Filter Modules, commonly deployed within the Modicon PLC platforms and Lexium drive systems, are specialized passive and active filtering devices designed to maintain power quality and electromagnetic compatibility (EMC). These modules suppress electromagnetic interference (EMI), radio-frequency interference (RFI), and harmonic distortions generated by high-frequency switching electronics like variable speed drives or switching power supplies. By conditioning power input lines and signal conduits, Schneider filter modules protect sensitive control hardware from electrical noise and ensure compliance with international EMC standards.

Product Parameters

The technical baseline of Schneider Electric Filter Modules focuses on attenuation performance, current capacities, and voltage ratings:

• Rated Operating Voltage: Supports standard single-phase and three-phase industrial supplies, typically rated for 100V AC to 480V AC at 50/60 Hz, with specialized DC versions for 24V DC logic lines.

• Nominal Current Capacity: Ranging from low-current signal/power filtering at 1 to 10 Amperes for control chassis, up to heavy-duty drive line filters handling 10 to over 200 Amperes.

• Noise Attenuation Bandwidth: Designed to suppress high-frequency line interference across a wide spectrum, typically effective from 150 kHz up to 30 MHz.

• Insertion Loss Rating: High insertion loss performance, often providing 30 dB to 60 dB of attenuation across target noise frequencies in both common-mode and differential-mode configurations.

• Enclosure Protection: Features IP20 touch-proof protection for terminal blocks, with rugged metal housing providing integrated shield grounding.

• Operating Temperature Range: Rated for continuous duty in industrial control environments from -10°C to 50°C without derating, and up to 60°C with reduced current loads.

Product Advantages

Schneider Electric Filter Modules provide essential operational benefits for high-availability automation environments:

• Enhanced System Reliability: Prevents random controller resets, communication dropouts, and analog signal jitter caused by high-frequency noise on power and field bus lines.

• Global EMC Standard Compliance: Enables automation systems and drive cabinets to meet strict European Union EMC directives (such as EN 61800-3 and EN 55011) without needing complex external filter engineering.

• Extended Equipment Lifespan: Protects sensitive internal electronics and downstream field devices from high-voltage line transients and harmonic overheating.

• Compact Cabinet Footprint: Designed with space-saving footprints, including side-by-side mounting, book-style form factors, or direct backplane integration to conserve enclosure space.

• Direct Drive and PLC Compatibility: Engineered specifically to match the electrical profiles of Modicon racks, Altivar drives, and Lexium servo systems, eliminating impedance mismatching issues.

Product Applications

These filter modules are critical components in electrically noisy manufacturing and processing environments:

• Variable Frequency Drive Enclosures: Attenuating harmonic and high-frequency noise generated on the mains supply line by large motor drives in HVAC, pumping, and fan systems.

• Precision Servo Motion Control: Filtering incoming power and feedback channels in multi-axis robotic arms, packaging machinery, and CNC machines to maintain encoder accuracy.

• Sensitive Analog Instrumentation: Cleaning 24V DC bus lines supplying low-voltage sensors, weigh scales, and analytical transmitters sensitive to power ripple.

• Critical Process Controllers: Protecting central processor racks and communication gateways in power plants, water treatment facilities, and pharmaceutical plants from line disturbances.

• Commercial Building Automation: Reducing harmonic distortion on supply lines in commercial complexes to prevent interference with data networks and building management hardware.

Important Precautions

To ensure proper attenuation performance and prevent electrical hazards, the following installation rules must be observed:

• Low-Impedance Earth Grounding: The metal chassis of the filter module must be mounted directly onto an unpainted, conductive backplate using low-impedance connections. High-frequency noise relies on a direct ground path to dissipate safely.

• Separation of Input and Output Wiring: Never bundle filtered output cables together with unfiltered input cables in the same wire duct. Doing so allows high-frequency noise to cross-couple back into the clean power lines via capacitive or inductive pickup.

• High Earth Leakage Current Warning: Filter modules contain internal capacitors connected between lines and earth ground, generating significant leakage currents. A permanent, heavy-duty protective grounding conductor must be securely attached before energizing the system.

• Proper Current Derating: Ensure the continuous operating current does not exceed the rated nominal current of the filter, especially at ambient temperatures above 40°C or when operating at elevated carrier frequencies. Overloading can lead to thermal saturation of the filter's magnetic cores, rendering the module ineffective.

• High Voltage Testing Restrictions: Disconnect the filter module or bypass its ground capacitors prior to performing high-voltage insulation tests (dielectric withstand or Megger tests) on the control cabinet, as these tests can damage the internal filter components.

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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