ABB 2CSR256147R1084 Auxiliary contact core S200 series circuit breaker

Product Description:2CSR256147R1084

The 2CSR256147R1084 is a digital, modular, and high-performance residual current breaker. It detects residual currents (also referred to as earth leakage currents), which occur when there is an imbalance between the live and neutral conductors or between the conductors and the ground. This type of fault could result from insulation failure, faulty wiring, or ground faults, and without protection, it could lead to electric shock hazards or even cause electrical fires.

This breaker is designed for medium to large installations, offering protection to circuits by automatically disconnecting the supply if it detects leakage currents above a predefined threshold. It provides reliable protection for personnel, fire prevention, and equipment safety in both residential and industrial electrical systems.

Features:2CSR256147R1084

• Rated Current (In): Typically 125 A, suitable for high-power systems.
• Residual Operating Current (IΔn): Adjustable sensitivity, typically available in values like 30 mA (for personal protection) and 300 mA (for fire prevention).
• High Breaking Capacity: Capable of handling high fault currents, ensuring safe interruption of current flow in case of faults.
• Digital Control: Enables integration with smart electrical systems, providing real-time data and advanced monitoring capabilities.
• Modular Design: Easily installed on a DIN rail in electrical distribution boards, compatible with other protection devices in the Emax 2 series.
• Selective Tripping: Ensures that only the faulty circuit is disconnected, maintaining continuity in the rest of the system.

Technical Parameters:2CSR256147R1084

• Rated Current (In): 125 A
  (This is the maximum current the RCB can carry under normal conditions without tripping).

• Rated Voltage (Un): 400 V AC (Standard voltage for AC circuits in low-voltage systems).

• Rated Frequency: 50/60 Hz (Suitable for both 50 Hz and 60 Hz systems).

• Residual Operating Current (IΔn): 30 mA / 300 mA

  • 30 mA: For personal protection (to protect against electric shocks).
  • 300 mA: For fire prevention or protection of equipment (to minimize damage in case of earth faults that could cause fire).
  • Other values may be configurable depending on the application needs.

• Sensitivity:

  • 30 mA: Detects leakage currents that could cause electric shock.
  • 300 mA: Generally used for protecting circuits against fire hazards caused by earth leakage.

Breaking Capacity:

• Rated Short-Circuit Breaking Capacity (Icc):
  • Typically 10 kA (the maximum fault current the device can interrupt without damage).

Tripping Characteristics:

• Tripping Type:
  • Instantaneous (No time delay when leakage current is detected above the threshold).
  • Selective tripping with adjustable settings (if applicable) for coordination with upstream protective devices.
• Rated Residual Making and Breaking Capacity:
  • Making capacity (Icm): 12 kA
  • Breaking capacity: 10 kA
  • Residual current protection disconnects power in case of detected leakage fault current, preventing risk of electric shock or fire.

Environmental Parameters:

• Ambient Temperature Range:

  • -5°C to +40°C (Standard operating temperature range).
  • Can be used in both indoor and outdoor installations, but the device should be protected from direct exposure to extreme environmental conditions.

• Storage Temperature:

  • -25°C to +70°C (Allows for storage in non-operating environments).

• IP Rating:

  • IP20 (This indicates that the device has protection against solid objects larger than 12mm and does not provide protection against water, so it should be used in indoor applications or in controlled environments).

Applications:2CSR256147R1084

• Personal Protection: The 30 mA sensitivity is ideal for protecting households against electrical shocks caused by leakage currents in circuits (e.g., lighting, outlets, or appliances). It helps ensure safety in the event of faulty wiring or insulation failures.
• Fire Prevention: Residual current breakers with 300 mA sensitivity can be used for fire prevention, particularly in older or heavily used electrical circuits, where earth faults could lead to fire risks.
• GFCI Protection: Commonly used in kitchens, bathrooms, and other wet areas where the risk of electric shock due to earth leakage is higher.

2. Commercial Buildings

• Offices, Shops, and Retail: Ensures the safety of employees and customers in commercial buildings by protecting circuits that power lighting, air conditioning systems, heating systems, and other essential services from leakage currents.
• Server Rooms/Data Centers: Used to safeguard critical electrical equipment like servers, where ground faults could cause equipment failure or data loss.
• Public Spaces: Ideal for malls, cinemas, hotels, and other public spaces to minimize risk to personnel and customers from accidental electric shocks or leakage currents.

3. Industrial Applications

• Manufacturing Plants: In factories where large machinery and equipment (motors, conveyors, welding machines) operate, the 2CSR256147R1084 can protect both the equipment and personnel from earth fault-related risks, which could be a fire hazard or cause machinery downtime.
• Heavy Machinery and Electrical Equipment: Offers protection for heavy-duty industrial equipment that may be prone to insulation faults or leakage currents due to age, wear, or operational factors.
• Control Panels: It is widely used in industrial control panels to monitor and disconnect circuits in the event of earth faults.

4. Renewable Energy Systems

• Solar PV Systems: In solar power installations, leakage currents can arise in DC circuits or AC inverters. The 2CSR256147R1084 offers protection for solar panels, inverters, and battery storage systems from ground faults and leakage, ensuring the system’s longevity and safety.
• Wind Turbine Electrical Systems: In wind energy installations, where large electrical systems operate in harsh environments, earth leakage protection is vital for ensuring the safe operation of turbine control panels, power converters, and transformers.

5. Hospitals and Healthcare Facilities

• Critical Care and Patient Safety: In hospitals, where sensitive medical equipment and patients are exposed to electrical systems, the 2CSR256147R1084 offers critical protection. 30 mA sensitivity is used to ensure patient safety by disconnecting any fault currents from the electrical system that could endanger lives, particularly in areas like ICUs, operating rooms, and patient monitoring equipment.
• Medical Equipment Protection: Protects sensitive equipment like MRI machines, X-ray systems, and defibrillators from electrical faults that could result in downtime, equipment failure, or damage.

6. Energy Distribution Networks

• Substations and Distribution Panels: In power distribution systems, the 2CSR256147R1084 provides earth leakage protection for distribution boards and transformers. It helps ensure that the fault current is quickly detected and the circuit disconnected, preventing damage to equipment and reducing the risk of fire in case of leakage.
• High-voltage Electrical Installations: Can be used in medium-voltage distribution systems to provide protection for downstream low-voltage circuits and prevent risks due to faults from faulty insulation or earth faults.

7. Outdoor and Harsh Environments

• Outdoor Installations: Suitable for installations in outdoor environments or exposed areas, such as in construction sites, gardens, and agricultural facilities, where the risk of earth faults is higher due to moisture, weather conditions, or physical damage to electrical wires.
• Agriculture: Commonly used in greenhouses, irrigation systems, and other agricultural machinery installations where electrical systems can be exposed to moisture or wet conditions that may cause leakage currents.

8. Marine and Offshore Applications

• Ships and Offshore Platforms: Used in marine and offshore oil platforms to ensure that electrical systems remain safe, particularly where equipment is exposed to water and moisture, which increases the risk of earth faults and electrical hazards.

9. Data Centers and Telecommunications

• Server Farms and Telecommunications Equipment: Protects sensitive telecommunication systems, including servers, switches, and routers, from earth faults, ensuring uptime and preventing interruptions caused by electrical faults.
• Backup Power Systems: In environments where uninterruptible power supplies (UPS) systems are used, the 2CSR256147R1084 ensures that earth leakage currents do not disrupt the backup power and protect connected systems from faults.

Customization:2CSR256147R1084

• Sensitivity Adjustments: The ABB 2CSR256147R1084 offers customizable sensitivity settings, which allow the device to trip at a specific residual current threshold. The most common settings include:
  • 30 mA: For personal protection. This setting is ideal for environments where electrical safety is critical, such as in residential buildings, hospitals, and other settings with direct contact risks.
  • 300 mA: For fire prevention. This is used in applications where the risk of fire due to leakage current is the primary concern, such as in industrial and commercial installations.
  • Other Custom Values: Depending on the application, ABB may be able to offer different sensitivity settings or allow for specific configuration adjustments based on the requirements of the installation.

2. Breaking Capacity (Icc) Customization

• The breaking capacity of the device is the maximum fault current it can safely interrupt. While the standard model typically supports 10 kA, customization might be available to handle higher or lower breaking capacities, depending on the needs of the installation. This could include:
  • Customized High Breaking Capacity: For installations in industrial applications with potentially high fault currents (e.g., in heavy machinery or large electrical systems), the device may be customized to handle higher Icc ratings.
  • Lower Breaking Capacity: For applications in systems where lower fault currents are expected, the device's breaking capacity could potentially be adjusted to optimize cost and efficiency.

3. Tripping Characteristics and Time Delay Settings

• Time Delay for Selective Tripping: In certain installations, such as those with motors or equipment with high inrush currents, a time delay function can be added to avoid nuisance tripping. This allows the RCB to withstand brief inrush currents without activating, which is important in industrial or commercial environments where equipment might cause short-duration leaks that are not dangerous.
• Selective Tripping Settings: In more complex systems, the device can be integrated with other protective devices to ensure selective tripping — only the affected circuit trips while other circuits remain operational. This is particularly important for large installations with multiple sub-circuits where minimizing downtime is essential.

4. Communication and Integration

• Digital Communication Modules: The Emax 2 series devices, including the 2CSR256147R1084, are designed for integration into smart grids, building management systems (BMS), and SCADA systems. Customization can include adding communication modules for remote monitoring and control:
  • Modbus RTU / TCP: For integration into industrial SCADA or energy management systems.
  • Ethernet / Wi-Fi: For integration into more advanced digital infrastructure for real-time diagnostics and fault monitoring.
  • IoT Integration: Enable the 2CSR256147R1084 to be part of an Internet of Things (IoT) solution, allowing for cloud-based monitoring, predictive maintenance, and remote troubleshooting.

5. Voltage Rating Customization

• The 2CSR256147R1084 typically operates at a rated voltage of 400V AC. However, in specific cases where the device is being used in non-standard environments (such as in low-voltage or higher-voltage systems), customization for different voltage levels might be possible.
  • Low-voltage Adaptations: Can be adjusted for use in low-voltage (LV) systems (e.g., 230V AC) or adapted for medium-voltage (MV) systems if necessary.
  • High-voltage Customization: In some cases, higher-voltage variants may be needed for specific industrial or utility applications.

6. IP Rating for Environmental Customization

• Ingress Protection (IP) ratings can be customized depending on the environment where the 2CSR256147R1084 is to be used. The standard device comes with an IP20 rating, which means it is protected against solid objects larger than 12 mm but not against water ingress.
  • Higher IP Rating: If the device is to be used in harsh environments (e.g., outdoors, in wet areas, or in industrial settings with high dust or moisture levels), a higher IP rating (such as IP44 or IP65) may be necessary.
  • Custom Enclosures: ABB may provide the option to install the RCB in weatherproof enclosures for outdoor use, enhancing the protection against dust, water, or corrosive environments.

7. Customization for Specific Applications

• Customized Load Protection: Depending on the types of equipment being used (such as motors, transformers, sensitive electronics, or solar panels), the 2CSR256147R1084 may be customized to provide additional protection. For example, solar PV systems may require specialized residual current protection due to the unique characteristics of the DC side.
• Industrial vs Residential Configurations: For large industrial setups, the customization could include tailored settings that allow for greater fault tolerance and longer delay times to prevent accidental disconnections. In contrast, for residential systems, the customization may focus on sensitive tripping for personal safety.

8. Monitoring and Diagnostics Features

• Built-in Diagnostics: Some versions of the Emax 2 series provide real-time diagnostic tools, logging, and alarms. Custom configurations can enable these features for automated reporting on system health and leakage currents, improving system reliability and minimizing unplanned downtime.
• Energy Consumption Monitoring: In some cases, adding energy meters or integrating with energy management systems could allow the 2CSR256147R1084 to also monitor energy usage and provide feedback on system efficiency and electrical losses.

9. Mounting Options and Integration

• Custom Mounting: For projects that require specific form factors, customized mounting options can be created. This might include adjustments for integration into large distribution boards, outdoor enclosures, or as part of multi-module protection systems.
• Integrating with Other Protection Devices: The 2CSR256147R1084 can be combined with other protection devices from the Emax 2 family or from ABB's broader portfolio for an integrated protection solution. This includes circuit breakers, motor protection devices, and surge protection devices, which can all be customized to work together in a cohesive protection strategy.

Support and Services:2CSR256147R1084

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