0-52808-002 RELIANCE

Reliance 0-52808-002 Filter Modules

Brand：RELIANCE Model number：0-52808-002

Country of origin: United States Product weight：0.55kg

HS code：9032899099

Product Details：

Product Dimensions：

A Reliance Filter Module, in the context of industrial automation, refers to a component or integrated circuit designed to mitigate unwanted electrical noise, suppress transients, or smooth fluctuating signals within a control system. These are not typically standalone, externally wired "modules" but rather functions or sub-components within power supply units, input modules, or specialized communication cards.

Product Details (Conceptual)

These modules or integrated filter circuits are employed to ensure the integrity and stability of data and power within industrial control systems.

Functionality:

Noise Suppression: Attenuate high-frequency noise (EMI/RFI) on power lines or signal lines that could interfere with sensitive electronics.
Transient Protection: Absorb or divert sudden voltage spikes (transients) caused by switching inductive loads or lightning.
Signal Smoothing (Analog Filtering): For analog input signals, they apply low-pass or other filters to remove high-frequency noise from sensor readings, preventing erratic control behavior.
Power Quality Improvement: Help to condition the power supplied to automation components, ensuring stable operation.

Location/Integration:

Often integrated within power supply modules for PLCs and control systems to provide clean DC power.
Found on analog input modules to filter raw sensor signals.
Can be part of communication modules to ensure reliable data transmission over industrial networks.
May also exist as standalone line filters for variable frequency drives (VFDs) or specific machinery to meet EMC regulations.

Product Parameters (Conceptual)

Parameters depend heavily on the type and application of the filter:

For Electrical Noise/Power Filters:

Voltage Rating: The maximum voltage it can handle (e.g., 24V DC, 120V AC, 480V AC).
Current Rating: The maximum continuous current it can pass (e.g., 1A, 10A, 50A).
Frequency Range: The range of frequencies it's designed to attenuate (e.g., 0.1 MHz to 30 MHz for RFI filters).
Insertion Loss: How much the filter attenuates noise at specific frequencies (measured in dB).
Inductance/Capacitance Values: Key electrical properties of the filter components.

For Signal Conditioning Filters (e.g., on Analog Input Modules):

Cut-off Frequency: The frequency above which signals are significantly attenuated (e.g., 10 Hz, 100 Hz).
Filter Type: (e.g., Low-pass, Band-pass).
Filter Order: Affects the steepness of the attenuation curve.
Response Time: How quickly the filtered signal stabilizes.

Product Advantages

Enhanced Reliability: By mitigating noise and transients, filters prevent malfunctions, false readings, and erratic behavior of control systems, leading to more reliable operation.
Increased System Longevity: Protect sensitive electronic components from damaging voltage spikes and continuous electrical noise, extending their operational life.
Improved Signal Integrity: Ensures that sensor data is accurate and free from spurious noise, leading to more precise control actions.
Compliance with Standards: Helps equipment and systems meet electromagnetic compatibility (EMC) standards and regulations (e.g., CE, FCC).
Reduced Downtime: Prevents issues caused by electrical interference, leading to fewer unexpected shutdowns and easier troubleshooting.
Optimal Performance: A clean power supply and noise-free signals allow control devices (PLCs, drives, sensors) to perform at their best.

Important Considerations

Source of Noise: Identify the source and characteristics of the noise (e.g., high-frequency switching, inductive loads) to select the appropriate filter type.
Load Characteristics: The filter must be rated for the voltage and current of the equipment it's protecting or the signal it's conditioning.
Installation: Proper installation, including correct grounding and shielding, is critical for the effective operation of any filter. Poor installation can render a filter ineffective.
Impedance Matching: Ensure the filter's impedance characteristics are compatible with the source and load impedances for optimal performance.
Voltage Drop: Some power filters can introduce a slight voltage drop, which should be accounted for in power budget calculations.
Obsolescence: As Reliance Electric product lines have evolved under ABB/Baldor, finding exact replacements for older integrated filter circuits might be challenging; however, modern equivalents with similar functionality are usually available.

Product Applications

Filters (whether integrated or as discrete components) are indispensable across all facets of industrial automation where Reliance Electric components might be used:

Industrial Control Panels:

Filtering incoming AC power to power supplies for PLCs, HMI, and other control electronics.
Noise suppression on I/O lines connected to field devices like proximity sensors or motor starters.

Variable Frequency Drives (VFDs) and Motor Control:

Line filters (EMI/RFI filters) on the input side of VFDs to reduce harmonics and noise feedback to the main power supply.
Output filters for VFDs to protect motors from voltage spikes and extend motor life.

Process Instrumentation:

Filtering analog sensor signals (e.g., from pressure transducers, temperature sensors) before they are processed by analog input modules, ensuring stable readings.

Communication Networks:

Filters on industrial communication buses (e.g., Ethernet, RS-485) to ensure robust and error-free data transmission in noisy environments.

Robotics and Motion Control:

Providing clean power and signal integrity to precise motion control components like servo drives and encoders.

0-52808-002 RELIANCE

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