ABB SDCS-KU2002 3ADT220090R0024 Varistor Board

Product Introduction

The ABB SDCS-KU2002 3ADT220090R0024 Varistor Board is a robust and precision-engineered protection module developed for ABB’s advanced drive and converter systems. Its primary role is to safeguard power electronic circuits against voltage surges, transient spikes, and overvoltage conditions that could otherwise damage critical semiconductor devices such as thyristors, IGBTs, and rectifiers.

This varistor board uses high-performance metal oxide varistors (MOVs) that absorb and dissipate excessive transient energy within microseconds, maintaining the voltage within safe operating limits. The SDCS-KU2002 3ADT220090R0024 is designed to operate reliably in demanding industrial environments, ensuring consistent protection performance even under frequent surge events.

The module belongs to ABB’s SDCS (Drive Control System) platform and is a key component within converter cabinets and drive assemblies used across industries such as pulp and paper, metals, power generation, and marine applications. Its durable design, compact form factor, and seamless integration capability make it a preferred choice for ensuring stable and long-term drive performance.

Technical Specifications

Product Applications

The ABB SDCS-KU2002 3ADT220090R0024 Varistor Board is specifically designed for high-power and high-precision industrial systems that require continuous protection from voltage transients. Its application areas include:

• Industrial Drives and Converters: Protects key components from transient overvoltage generated during switching or external surges.

• Power Supply Systems: Stabilizes the supply voltage for sensitive electronic control units.

• Motor Control Centers (MCCs): Prevents voltage spikes during rapid acceleration or deceleration cycles.

• Process Automation: Ensures uninterrupted operation of PLCs, DCS controllers, and inverters in process plants.

• Heavy Industrial Equipment: Used in steel mills, refineries, and paper production lines to protect variable-speed drives.

• Renewable Energy Applications: Provides surge protection in wind turbines and solar inverter systems, where switching surges are frequent.

Product Advantages

• High Energy Absorption Capacity: Capable of absorbing large surge energies up to 400 J per path, preventing semiconductor damage.

• Ultra-Fast Response: Reaction time under 25 nanoseconds ensures instant clamping of transient voltages.

• Enhanced Reliability: Designed and tested to operate continuously in harsh industrial environments.

• Seamless Integration: Fully compatible with ABB drive architectures such as DCS and ACS platforms.

• Thermal Stability: Built with high-temperature-tolerant components for stable performance under varying loads.

• Self-Diagnostic Indicators: Built-in LEDs provide real-time status for surge events, power, and fault conditions.

• Electrical Isolation: Provides superior insulation between input and output, minimizing noise coupling.

• Low Maintenance Requirements: Passive protection design requires minimal intervention and ensures long service intervals.

• Compact Design: Optimized size enables easy installation in compact drive enclosures.

• Extended Equipment Life: Prevents voltage-induced stress, enhancing overall drive system longevity.

FAQ

1. What is the main role of the ABB SDCS-KU2002 3ADT220090R0024 Varistor Board?
   It protects ABB drive systems from transient voltage surges by clamping and dissipating excess energy through varistor elements.

2. Which ABB systems are compatible with this board?
   The board is designed for ABB DCS, ACS, and similar series drive and converter systems.

3. How does the board react to an overvoltage event?
   When voltage exceeds the threshold, the varistors conduct instantly, diverting surge energy and restoring to non-conductive mode once the surge passes.

4. What is the typical clamping voltage for this model?
   The board typically clamps transients at around 820 V, depending on the application configuration.

5. Does the SDCS-KU2002 board include fault indication?
   Yes, it features LED indicators that display power status, active surge events, and fault detection for easy monitoring.

6. Is external cooling required?
   No, the board relies on natural convection cooling, eliminating the need for additional fans or external cooling systems.

7. Can this board be used in non-ABB systems?
   While designed for ABB drives, it can be used in compatible third-party systems if voltage and interface specifications match.

8. What type of protection components are used?
   It employs high-quality metal oxide varistors (MOVs) that provide consistent and repeatable surge suppression.

9. Is there any isolation between signal and power circuits?
   Yes, the board offers high dielectric isolation to ensure signal integrity and prevent interference.

10. What happens if the varistor board fails?
    In the event of failure, the system will typically trigger a fault indication and isolate the affected protection path, preventing further system damage.

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FAQ

1. What is the main role of the ABB SDCS-KU2002 3ADT220090R0024 Varistor Board?
   It protects ABB drive systems from transient voltage surges by clamping and dissipating excess energy through varistor elements.

2. Which ABB systems are compatible with this board?
   The board is designed for ABB DCS, ACS, and similar series drive and converter systems.

3. How does the board react to an overvoltage event?
   When voltage exceeds the threshold, the varistors conduct instantly, diverting surge energy and restoring to non-conductive mode once the surge passes.

4. What is the typical clamping voltage for this model?
   The board typically clamps transients at around 820 V, depending on the application configuration.

5. Does the SDCS-KU2002 board include fault indication?
   Yes, it features LED indicators that display power status, active surge events, and fault detection for easy monitoring.

6. Is external cooling required?
   No, the board relies on natural convection cooling, eliminating the need for additional fans or external cooling systems.

7. Can this board be used in non-ABB systems?
   While designed for ABB drives, it can be used in compatible third-party systems if voltage and interface specifications match.

8. What type of protection components are used?
   It employs high-quality metal oxide varistors (MOVs) that provide consistent and repeatable surge suppression.

9. Is there any isolation between signal and power circuits?
   Yes, the board offers high dielectric isolation to ensure signal integrity and prevent interference.

10. What happens if the varistor board fails?
    In the event of failure, the system will typically trigger a fault indication and isolate the affected protection path, preventing further system damage.

Related Models (Same Series or Function)

Popular Models from the Same Brand

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