ABB PFVK128 3BSE010547R1 Relay Board

The ABB PFVK128 3BSE010547R1 Relay Board is a high-quality industrial relay interface module designed to work seamlessly with ABB’s control systems, such as the AC 800M and Advant Master series. It functions as a switching interface between the system’s output signals and high-power field devices. Built to handle a range of relay output applications, this board serves as a bridge for digital signal conversion, electrical isolation, and secure relay switching.

Equipped with multiple relay channels, the PFVK128 is a reliable choice for executing switching operations in critical environments like power plants, oil refineries, and large-scale manufacturing processes. It is designed with ABB’s hallmark focus on industrial safety, performance, and longevity, providing clean switching and signal isolation in harsh conditions.

Product Specifications

Applications

The ABB PFVK128 Relay Board is engineered for critical automation environments requiring high-reliability relay switching and electrical isolation between control and field levels. It is commonly used in:

• Power Generation Plants

  Controls and isolates switchgear, turbines, and auxiliary systems via reliable relay operation.

• Process Automation

  Used in DCS or PLC-based automation to trigger pumps, solenoids, heaters, and other actuators.

• Oil & Gas Facilities

  Enables relay switching in hazardous areas with galvanic isolation for safe operations.

• Building Automation Systems

  Drives HVAC dampers, lighting systems, and access control relays from centralized logic.

• Water Treatment Plants

  Interfaces with sensors and electromechanical valves for process safety and control.

• Manufacturing and Robotics

  Executes machine start/stop operations, alarm feedback, and safety interlocking.

Product Advantages

• High Channel Density

  16 relay outputs in one board improve panel space efficiency.

• Strong Electrical Isolation

  Galvanic separation between controller signals and output load ensures safe operation.

• Industrial-Grade Design

  Built with robust relay components for long mechanical and electrical life cycles.

• Flexible Mounting Options

  Supports DIN rail and panel mounting, fitting into varied cabinet designs.

• Universal Compatibility

  Easily interfaces with several ABB controller platforms and industrial systems.

• Field Proven Reliability

  Trusted in critical control systems with minimal maintenance requirements.

• Signal Integrity

  Avoids false triggering via input signal conditioning and stable relay switching.

• Reduced Wiring Complexity

  Streamlined terminal design simplifies system integration and maintenance.

Frequently Asked Questions (FAQ)

1. What is the main function of the PFVK128 relay board?

   It acts as an interface to control high-power field devices using relay outputs from ABB control systems.

2. How many relays are included on the board?

   The module includes 16 independent relay output channels.

3. What is the rated load capacity per relay channel?

   Each relay can switch up to 2 A at 30 VDC or 250 VAC (resistive loads).

4. Is the module compatible with ABB AC 800M systems?

   Yes, it integrates directly with ABB’s AC 800M series and other compatible controllers.

5. Are the relay outputs normally open or normally closed?

   Standard models are SPST-NO (Single Pole Single Throw – Normally Open).

6. What voltage is required to activate the relay coils?

   The board is designed for 24 VDC coil activation.

7. Can this board be mounted on a DIN rail?

   Yes, it supports both DIN rail and panel mounting options.

8. Is the PFVK128 hot-swappable?

   No, it should be powered down during insertion or removal to avoid damage.

9. Does it include onboard diagnostics?

   Some variants include LED indicators for each relay output status.

10. What environments is it certified for?

    It is certified for use in industrial environments and complies with CE, UL, and RoHS standards.