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- RH926CM
- AC Input Terminal Block Cable
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- 0.8 meters
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Product Overview
The Foxboro RH926CM Standard 200 Series AC Input Terminal Block Cable connects the AC/DC input terminal block to a compatible FPS400-24 power supply in Foxboro Standard 200 Series control systems. It belongs to the power-entry wiring arrangement used in industrial control cabinets, where incoming power must be routed through the designated terminal block before reaching the power supply.
The RH926CM has a cable length of 0.8 meters and connects the P0926DZ input terminal block to the P0922YU power supply. This supply accepts 120/240 V AC or 125 V DC input. Although the cable is identified as an AC input terminal block cable, its associated power supply supports the input options specified for the P0922YU configuration. It should not be confused with the separate cable used with the P0922YC 24 V DC input power supply.
In a process control cabinet, the input terminal block and power supply may be mounted at different positions to accommodate incoming wiring, DIN-rail layout and access for maintenance. The RH926CM provides the connection between these components while keeping the power-entry wiring separate from the downstream cables that distribute power to control baseplates.
RH926CM supersedes the earlier P0926CM part number. When replacing an existing cable, the power supply model and terminal block configuration should be checked together, since AC-input and DC-input cable variants serve different connection arrangements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Foxboro |
| Model / Part Number | RH926CM |
| Previous Part Number | P0926CM |
| Product Family | Standard 200 Series |
| Product Type | AC Input Terminal Block Cable |
| System Application | Foxboro I/A Series / Evo control systems |
| Associated Power Supply | P0922YU / FPS400-24 |
| Compatible Input Terminal Block | P0926DZ |
| Cable Function | Connects the input terminal block to the power supply |
| Cable Length | 0.8 meters |
| Shipping Weight | 3 kg |
Product Features
- Terminal block connection: Links the designated input terminal block to the compatible power supply.
- 0.8-meter cable length: Accommodates cabinet layouts where the terminal block and supply are mounted apart.
- Standard 200 Series application: Supports the specified power-entry arrangement in compatible Foxboro control systems.
- Defined power-entry path: Connects incoming power wiring to the supply through the designated terminal block.
- Replacement identification: RH926CM is the replacement reference for the earlier P0926CM cable.
- Input configuration distinction: Requires the correct power supply variant and connection arrangement.
- Cabinet wiring support: Helps organize the connection between the input terminal block and power supply.
Working Principle
The RH926CM carries the electrical connection from the P0926DZ input terminal block to the P0922YU power supply. Incoming power is connected at the terminal block, then routed through the cable to the supply’s designated input interface. The power supply converts the accepted input into regulated DC power for the control system.
In a typical installation, incoming cabinet power is terminated at the input terminal block, while the FPS400-24 is mounted nearby on a DIN rail. The RH926CM bridges the two components, allowing the connection to follow the cabinet’s planned wiring route without requiring the terminal block and power supply to be immediately adjacent.
The cable does not convert voltage, regulate the power supply output or distribute power directly to downstream baseplates. Those functions belong to the power supply and the associated output cables. The RH926CM serves specifically as the input connection between the terminal block and the supply.
Correct cable selection is important when different power supply input variants are installed across a facility. The RH926CM is associated with the P0922YU configuration; the P0922YC 24 V DC input version uses a separate terminal block cable arrangement.
Role in a Foxboro Standard 200 Series Power Architecture
The RH926CM forms part of the power-entry section of a Foxboro control cabinet. It connects the designated input terminal block to the power supply, which then delivers regulated DC power through separate output connections to compatible baseplates.
Incoming Power → P0926DZ Input Terminal Block → RH926CM Cable → P0922YU / FPS400-24 Power Supply → Baseplate Power Distribution
| System Component | Function | Relationship to the RH926CM |
|---|---|---|
| Incoming Power Source | Supplies electrical input to the cabinet | Feeds the designated input terminal block |
| P0926DZ Input Terminal Block | Provides the connection point for incoming power | Connects the incoming supply to the cable |
| RH926CM Cable | Links the input terminal block to the power supply | Establishes the specified input connection |
| P0922YU Power Supply | Accepts the applicable input and provides regulated DC output | Receives input power through the cable |
| FPS400-24 Power Supply Assembly | Supplies power to compatible Standard 200 Series equipment | Uses the connected input arrangement to operate |
| RH926K-Series Output Cables | Carry power from the supply to compatible baseplates | Serve the downstream power distribution path |
| Modular Baseplates | Support compatible control modules | Receive power through the separate output cables |
Industrial Applications
| Application | Typical Equipment | Role of the Cable |
|---|---|---|
| Process Automation | Foxboro Standard 200 Series cabinets | Connects the input terminal block to the system power supply |
| Chemical Processing | Distributed control system power assemblies | Supports the designated power-entry wiring arrangement |
| Oil and Gas Facilities | Process monitoring and control cabinets | Connects incoming power wiring to the compatible supply |
| Power Generation | Plant control and monitoring equipment | Forms part of the cabinet’s power-entry connection |
| Manufacturing Plants | Modular industrial control cabinets | Accommodates the connection between separately mounted components |
| Water and Wastewater Treatment | Process automation panels | Supports the power supply input connection |
| Control Cabinet Refurbishment | Existing Foxboro I/A Series installations | Replaces a matching terminal block cable during maintenance |
| System Expansion | Additional compatible power supply assemblies | Supports installation where the input arrangement matches the specified configuration |
Installation and Maintenance
- Verify the part reference: Confirm that RH926CM or the earlier P0926CM reference matches the required input terminal block cable.
- Check the power supply model: Verify that the installed supply is P0922YU and that its input configuration matches the cable application.
- Identify the terminal block: Confirm that P0926DZ is the intended input terminal block for the installation.
- Isolate incoming power: Follow the applicable electrical isolation and lockout procedure before disconnecting the cable.
- Inspect the cable and connectors: Check for damaged insulation, loose contacts, deformation or contamination before installation.
- Plan the routing path: Position the cable between the terminal block and supply without excessive tension or sharp bends.
- Connect the terminal block end: Fit the cable to the designated terminal block interface according to the equipment’s connection requirements.
- Connect the power supply end: Attach the opposite end to the specified input interface on the P0922YU supply.
- Secure the cable route: Keep the cable clear of sharp cabinet edges, moving components and unsuitable heat sources.
- Check the input configuration: Confirm that the incoming voltage and input type match the power supply’s permitted ratings before energizing the system.
- Restore power and verify operation: Follow the approved startup procedure and check the power supply’s status indicators and output condition.
- Record the maintenance: Document the installed part reference, power supply model, terminal block identification and any observed cable damage.
Compatible System Components
| Component | Function | Compatibility Consideration |
|---|---|---|
| Foxboro P0926DZ | AC/DC input terminal block | Provides the input connection point for the compatible supply arrangement |
| Foxboro P0922YU | FPS400-24 power supply with AC/DC input capability | The specified power supply for the RH926CM connection |
| Foxboro FPS400-24 | Standard 200 Series power supply | Verify the installed input variant and connection requirements |
| Foxboro P0926CM | AC Input Terminal Block Cable | Earlier reference superseded by RH926CM; cable length 0.8 meters |
| Foxboro RH923DA | AC Input Terminal Block Cable | 0.4-meter option for supported installations |
| Foxboro RH927AQ | AC Input Terminal Block Cable | 1.83-meter option for supported installations |
| Foxboro RH927AR | AC Input Terminal Block Cable | 2.44-meter option for supported installations |
| Foxboro RH923DG | DC Input Terminal Block Cable | 0.8-meter cable associated with the P0922YC 24 V DC input configuration |
| Foxboro RH926K-Series Cables | Power Supply-to-Baseplate Cables | Carry power from the supply to compatible baseplates after the input stage |
Recommended Related Models
| Model / Product | Product Type | Relationship | Selection Consideration |
|---|---|---|---|
| Foxboro P0926CM | Standard 200 Series AC Input Terminal Block Cable | Earlier part reference for RH926CM | Useful when matching older equipment documentation |
| Foxboro RH923DA | AC Input Terminal Block Cable | Shorter cable variant, 0.4 meters | Consider when the terminal block and supply are mounted closer together |
| Foxboro RH927AQ | AC Input Terminal Block Cable | Longer cable variant, 1.83 meters | Check the required routing distance and installation configuration |
| Foxboro RH927AR | AC Input Terminal Block Cable | Longer cable variant, 2.44 meters | Consider where the cabinet layout requires additional cable length |
| Foxboro P0926DZ | AC/DC Input Terminal Block | Mating input terminal block | Confirm the terminal block interface before selecting the cable |
| Foxboro P0922YU | FPS400-24 Power Supply | Associated power supply | Verify the permitted input voltage and power supply configuration |
| Foxboro RH923DG | DC Input Terminal Block Cable | Alternative cable for the P0922YC input arrangement | Select only when the installed supply uses the corresponding 24 V DC input configuration |
Key Advantages
- Connects the specified input terminal block to a compatible Foxboro power supply.
- Provides a 0.8-meter cable length for cabinet power-entry wiring.
- Supports the designated input connection in Standard 200 Series systems.
- Identifies the replacement reference for maintenance and spare-parts records.
- Keeps the input connection separate from downstream baseplate power distribution.
Technical FAQs
Which power supply is compatible with the Foxboro RH926CM?
The RH926CM is associated with the P0922YU version of the FPS400-24 power supply. Verify the installed supply’s input configuration and terminal block connection before installation.
What is the role of the P0926DZ terminal block?
The P0926DZ provides the designated connection point for incoming power. The RH926CM links the terminal block to the P0922YU power supply, which then supplies regulated DC power to the control system.
Can RH926CM be used with the P0922YC 24 V DC input power supply?
RH926CM is associated with the P0922YU input arrangement. The P0922YC uses a separate DC input terminal block cable, such as RH923DG for the 0.8-meter configuration. Confirm the installed supply model before choosing a replacement.
What should be checked if the power supply does not start after cable replacement?
Check the incoming supply, the P0926DZ terminal block connections, cable seating and the power supply input configuration. Confirm that the incoming voltage is within the supply’s permitted range before restoring operation.