W1-S35 BENDER

W1-S35 BENDER Filter Modules

Product  Description：

Bender Filter Modules are specialized high-performance electronic components designed to suppress electromagnetic interference (EMI) and mitigate harmonic distortion in industrial power supply systems. Manufactured by Bender, these modules are engineered to complement insulation monitoring devices (IMDs) and residual current monitors (RCMs). They prevent high-frequency noise generated by variable frequency drives (VFDs), inverters, and switching power supplies from causing false alarms or degrading the accuracy of safety monitoring equipment.

Product Parameters

The technical characteristics of Bender Filter Modules are focused on attenuation performance, voltage ratings, and network compatibility:

• Rated Nominal Voltage: Supports a wide range of operating voltages, typically up to 690V AC in three-phase systems and up to 1000V DC in isolated IT networks.

• Attenuation Frequency Range: Optimized to suppress high-frequency noise, generally targeting frequencies from 10 kHz to 30 MHz.

• Continuous Current Rating: Designed to handle specific line currents or leakage currents depending on the application, ranging from small control currents to heavy-duty industrial phases.

• Insertion Loss: Provides excellent insertion loss performance across the target frequency spectrum to isolate monitoring loops from drive noise.

• Insulation Class: Built to high industrial insulation standards, often rated for a dielectric strength of AC 3kV or higher between the terminals and the housing.

• Ambient Temperature Range: Engineered for continuous operation in demanding environments, maintaining full performance from -25°C up to 70°C.

Product Advantages

Integrating Bender Filter Modules into an electrical infrastructure provides critical advantages for system stability and compliance:

• False Alarm Prevention: By filtering out the high-frequency leakage currents generated by modern power electronics, these modules ensure that insulation monitors only measure true galvanic insulation faults.

• Enhanced Measurement Accuracy: They stabilize the measuring signals used by safety devices, allowing for precise tracking of degradation in insulation resistance.

• Seamless System Compatibility: Specifically tuned to match the characteristics of Bender ISOMETER and LINETRAXX monitoring series, eliminating integration guesswork.

• Robust Environmental Construction: The internal components are fully encapsulated, protecting them from vibration, dust, and moisture in harsh industrial settings.

• Compliance with EMV/EMC Standards: Helps the overall system meet international electromagnetic compatibility guidelines by absorbing conducted emissions before they propagate through the grid.

Product Applications

These filter modules are utilized in electrical networks where power electronic noise threatens monitoring integrity:

• Variable Speed Drive Systems: Installed in panels containing VFDs and servo drives to clean up the electrical noise fed back into the main distribution board.

• Solar and Wind Power Generation: Used on the DC and AC sides of large-scale renewable inverters to maintain accurate ground fault detection.

• Electric Vehicle (EV) Charging Stations: Integrated into high-power fast-charging infrastructure to prevent switching noise from disrupting safety interlocks.

• Marine and Offshore Electrical Systems: Protecting ungrounded (IT) power networks on ships and oil rigs where operational continuity and accurate fault detection are life-safety requirements.

• Healthcare Power Networks: Used in medical IT systems to ensure that isolated power panels remain free from high-frequency interference that could impact sensitive medical equipment.

Important Precautions

To ensure proper noise suppression and safe operation, the following guidelines must be followed:

• Correct Series Placement: The filter module must be physically and electrically positioned exactly as specified in the system diagram, typically between the noise source and the monitoring device connection point.

• Grounding Path: Ensure a low-impedance connection between the module’s ground terminal and the central protective earth (PE) busbar. Poor grounding drastically reduces the effectiveness of EMI filtration.

• Voltage Verification: Never connect a filter module to a network with an operating voltage higher than the module's maximum rating, as this can cause internal dielectric breakdown and component failure.

• Thermal Spacing: Allow adequate space around the module within the control cabinet. While these modules are highly efficient, passive dissipation of captured high-frequency energy can cause localized warming.

• Isolation Testing: Disconnect the filter module from the circuit before performing high-voltage insulation tests (Megger tests) on the main cabling, as the filtering components can distort test results or suffer permanent damage.

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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JUSTWELL PTE. LTD

Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.