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- Power Supply Output Cable
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Product Overview
The Foxboro RH926KQ I/A Series 200 Power Supply Output Cable is a power interconnection cable used to connect compatible power supply equipment to modular baseplates in Foxboro Standard 200 Series control systems. It belongs to the RH926K cable family, which includes several cable lengths for different equipment layouts inside industrial control cabinets.
The RH926KQ has a cable length of 2.1 meters and is used in the power distribution arrangement associated with the FPS400-24 power supply. Its purpose is to carry power from the supply to a compatible baseplate, allowing the installed control hardware to receive power through the designated connection. The cable is not intended for transmitting process measurements or controller communication signals.
In a distributed control system cabinet, the power supply and baseplates may occupy different mounting positions because of module grouping, wiring duct placement or maintenance access requirements. The 2.1-meter cable accommodates installations where a shorter connection would not reach along the planned route. The cable must still match the applicable baseplate family and connector arrangement.
The RH926KQ supersedes the earlier P0926KQ reference and belongs to the newer cable family used with modular baseplates. This distinction matters when maintaining an existing installation because older P0914XA/XB baseplates use a separate legacy cable family. Correct identification of the installed baseplate is therefore essential when selecting a replacement.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Foxboro |
| Model / Part Number | RH926KQ |
| Previous Part Number | P0926KQ |
| Product Family | I/A Series 200 |
| Product Type | Power Supply Output Cable |
| Primary Function | Power supply-to-baseplate connection |
| System Application | Standard 200 Series subsystem |
| Associated Power Supply | FPS400-24 |
| Cable Construction | Shielded cable, 16 AWG |
| Cable Length | 2.1 meters |
| Connection Type | Power supply output to compatible modular baseplate |
| Shipping Weight | 3 kg |
Product Features
- Power supply interconnection: Carries power from a compatible supply to the designated modular baseplate.
- 2.1-meter cable length: Accommodates cabinet layouts where the power supply and baseplate are separated.
- Standard 200 Series compatibility: Serves the applicable Foxboro modular-baseplate power distribution arrangement.
- Shielded cable construction: Uses the specified shielded 16 AWG cable configuration.
- Dedicated power connection: Separates the power distribution function from process signal and communication wiring.
- Replacement identification: RH926KQ identifies the 2.1-meter cable configuration and supersedes P0926KQ.
- Multiple length options: Belongs to a cable family with shorter and longer alternatives for different installation routes.
Working Principle
The RH926KQ provides the electrical path between a compatible power supply output and a modular baseplate. Once connected correctly, it carries the supplied electrical power to the baseplate’s designated power connection, supporting the operation of the control hardware installed in the system.
Consider a process control cabinet containing several groups of fieldbus modules. The modules may be installed on separate baseplates to organize process signals by equipment area or control function. The power supply can be mounted away from one of these baseplates, and the RH926KQ provides the cable connection along the planned cabinet route.
The cable itself does not regulate voltage, process signals or execute control logic. Those functions belong to the power supply and the connected automation equipment. The cable’s role is to maintain the intended electrical connection between the supply and the baseplate.
During installation, connector seating, cable condition and the selected baseplate configuration all affect the integrity of the power connection. A damaged cable or an incompatible termination can interrupt power to the connected hardware, potentially affecting the operation of the associated control modules.
Role in a Foxboro I/A Series 200 Control System
The RH926KQ forms part of the power distribution arrangement in compatible Standard 200 Series systems. It connects the FPS400-24 power supply output to a suitable modular baseplate, supporting the electrical supply required by the installed control hardware.
FPS400-24 Power Supply → RH926KQ Cable → Modular Baseplate → Installed Control Modules
| System Component | Function | Relationship to the Cable |
|---|---|---|
| FPS400-24 Power Supply | Supplies electrical power to compatible control equipment | Provides the output connected through the cable |
| RH926KQ Power Supply Output Cable | Transfers power between the supply and baseplate | Establishes the designated electrical connection |
| Modular Baseplate | Supports compatible control modules and their electrical interfaces | Receives power through the cable |
| Fieldbus Modules (FBMs) | Perform configured process input/output functions | Operate as part of the powered control system |
| Field Control Processor | Executes configured control functions | Coordinates control operations within the system architecture |
| Cabinet Wiring Ducts | Organize and route electrical wiring | Provide a planned route for the cable |
| Additional Modular Baseplates | Accommodate additional control modules | Require power connections within the system’s specified limits |
Industrial Applications
| Application | Typical Equipment | Role of the Cable |
|---|---|---|
| Process Automation | Foxboro I/A Series 200 control cabinets | Connects the power supply to a compatible modular baseplate |
| Chemical Processing | Process monitoring and control systems | Supports power distribution to installed control hardware |
| Oil and Gas Facilities | Distributed control system cabinets | Provides the designated supply-to-baseplate connection |
| Power Generation | Plant monitoring and automation equipment | Connects compatible power supply and baseplate components |
| Manufacturing Plants | Modular industrial control systems | Accommodates power connections between separately mounted components |
| Water and Wastewater Treatment | Process automation cabinets | Supports the intended electrical power path |
| Control System Expansion | Additional compatible modular baseplates | Provides a connection where supply capacity and system requirements permit |
| Maintenance and Replacement | Existing I/A Series 200 installations | Replaces a matching cable when inspection or servicing identifies a need |
Installation and Maintenance
- Verify the part reference: Confirm that RH926KQ is the required 2.1-meter cable and that the earlier P0926KQ reference matches the existing equipment documentation.
- Check equipment compatibility: Identify the installed FPS400-24 power supply and modular baseplate before removing the existing cable.
- Isolate the power supply: Follow the applicable shutdown and electrical isolation procedure before installation or maintenance.
- Inspect the connectors: Check both ends for damaged contacts, contamination, deformation or other signs of wear.
- Plan the cable route: Route the cable between the power supply and baseplate without excessive tension or sharp bends.
- Examine the cable jacket: Check accessible sections for cuts, crushing, abrasion or other physical damage.
- Connect the supply end: Fit the cable to the designated power supply output using the specified connection arrangement.
- Connect the baseplate end: Secure the other end to the compatible modular baseplate power input.
- Secure the cable routing: Keep the cable away from sharp cabinet edges, moving parts and unsuitable heat sources.
- Check the power distribution arrangement: Confirm that the number of connected cables and the total connected load remain within the applicable power supply requirements.
- Verify system operation: Restore power according to the approved procedure and confirm that the connected baseplate and its installed hardware receive power normally.
- Record the maintenance: Document the cable reference, replacement date, connection points and any damage or installation issues observed.
Compatible System Components
| Component | Function | Compatibility Consideration |
|---|---|---|
| Foxboro FPS400-24 | Supplies power to compatible Standard 200 Series equipment | Verify the supply output and system power requirements |
| Standard 200 Series Modular Baseplate | Houses compatible control modules | Confirm that the baseplate belongs to the supported modular family |
| Foxboro RH926KK | Power supply output cable | 0.4-meter cable for compatible installations |
| Foxboro RH926KL | Power supply output cable | 0.9-meter cable |
| Foxboro RH926KM | Power supply output cable | 1.2-meter cable |
| Foxboro RH926KN | Power supply output cable | 1.5-meter cable |
| Foxboro RH926KP | Power supply output cable | 1.8-meter cable |
| Foxboro RH926KQ | Power supply output cable | 2.1-meter cable for compatible modular baseplates |
| Foxboro RH931NC | Power supply-to-baseplate cable | 2.4-meter cable option for supported configurations |
| Foxboro RH926CF | Legacy baseplate power supply cable | Associated with older P0914XA/XB baseplates; verify the legacy interface before selection |
Recommended Related Models
| Model / Product | Product Type | Relationship | Selection Consideration |
|---|---|---|---|
| Foxboro RH926KP | I/A Series 200 Power Supply Output Cable | Same cable family, 1.8-meter length | Consider when the planned cable route requires less length |
| Foxboro RH926KN | I/A Series 200 Power Supply Output Cable | Same cable family, 1.5-meter length | Verify that the shorter cable can reach without tension |
| Foxboro RH926KM | I/A Series 200 Power Supply Output Cable | Same cable family, 1.2-meter length | Suitable only when the installation route permits |
| Foxboro RH931NC | I/A Series 200 Power Supply-to-Baseplate Cable | Longer cable option, 2.4 meters | Check the supported cable configuration and connector requirements |
| Foxboro P0926KQ | I/A Series 200 Power Supply Output Cable | Earlier part reference superseded by RH926KQ | Useful for identifying the cable specified in older documentation |
| Foxboro FPS400-24 | Standard 200 Series Power Supply | Associated power supply for the cable arrangement | Verify the installed supply and applicable baseplate power requirements |
Key Advantages
- Connects compatible power supplies to modular baseplates.
- Provides a 2.1-meter cable length for separated cabinet components.
- Uses shielded 16 AWG cable construction.
- Supports the intended power distribution path in Standard 200 Series systems.
- Provides a clear replacement reference for maintenance and inventory records.
Technical FAQs
What equipment does the Foxboro RH926KQ connect?
The RH926KQ connects a compatible power supply output to a modular baseplate in the applicable Standard 200 Series configuration. The baseplate type and connector arrangement should be confirmed before installation.
Is RH926KQ interchangeable with the older P0926KQ?
RH926KQ supersedes P0926KQ as the corresponding cable reference. For an actual replacement, verify the installed power supply, baseplate family and connector arrangement rather than relying on the part-number relationship alone.
Can RH926KQ be used with an older P0914XA/XB baseplate?
The RH926KQ belongs to the newer cable family used with modular baseplates. Older P0914XA/XB baseplates use the legacy RH926CA–RH926CF cable family, so the baseplate interface must be checked before choosing a replacement.
What should be checked if a connected baseplate loses power intermittently?
Inspect the cable jacket and connectors, confirm that both ends are seated correctly, and check the power supply output. Also verify that the cable matches the baseplate configuration and that the overall power distribution remains within the system’s specified limits.