Honeywell TC-RPSCA1 / TC-RPSC04 – Redundant Power Supply Controller Module | Experion PKS / TotalPlant Solution
Engineering Background: Continuous process industries — refining, petrochemical, power generation, and pharmaceuticals — demand zero-tolerance power architectures. A single power interruption to a DCS controller chassis can cascade into unplanned shutdowns costing hundreds of thousands of dollars per hour. Honeywell engineered the TC-RPSCA1 and TC-RPSC04 specifically to eliminate this single point of failure within the TotalPlant Solution (TPS) and Experion PKS control platforms.
Product Positioning: The TC-RPSCA1 serves as the redundant power supply controller card, while the TC-RPSC04 is the companion power supply chassis/module — together forming a hot-standby power redundancy pair. When the primary supply degrades or fails, the standby unit assumes load within milliseconds, maintaining uninterrupted 24 VDC rail integrity to all downstream I/O and controller modules. This assembly is a critical infrastructure component for any site operating Honeywell’s C200, C300, or legacy HPM/LCN node architectures.
Complete Technical Specifications
- Part Numbers: TC-RPSCA1 (Controller Card) / TC-RPSC04 (Power Supply Module)
- Platform Compatibility: Honeywell TotalPlant Solution (TPS), Experion PKS C200/C300, HPM, LCN
- Function: Redundant hot-standby power supply controller and module pair
- Output Voltage: 24 VDC regulated rail to chassis backplane
- Redundancy Mode: Active/Standby hot-swap; automatic failover without operator intervention
- Input Voltage: 100–240 VAC, 50/60 Hz (universal input)
- Operating Temperature: 0°C to +60°C (32°F to 140°F)
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 5% to 95% non-condensing
- Mounting: DIN rail / chassis slot per TPS/Experion PKS standard enclosure
- Approvals: CE, UL, cUL (per Honeywell platform certification)
- Weight: Approx. 300 g
- Country of Origin: United States
Proven Application Environments
- Oil & Gas: Upstream wellhead controllers, midstream compressor stations, downstream refinery DCS cabinets
- Petrochemical: Reactor control systems requiring SIL-rated power integrity
- Power Generation: Turbine control and boiler management systems on Experion PKS platforms
- Pharmaceuticals: FDA-regulated batch process control with validated power redundancy
- Pulp & Paper / Mining: Continuous process lines where controller downtime is not acceptable
- Water Treatment: Municipal SCADA/DCS hybrid architectures using Honeywell TPS nodes
Engineering Advantages
- Zero-Interruption Failover: Sub-millisecond switchover time preserves controller scan cycle integrity
- Hot-Swap Capability: Replace the failed unit under live load without shutting down the controller chassis
- Diagnostic Transparency: Onboard status LEDs and backplane health reporting to Experion Station operator console
- Long Service Life: Designed to Honeywell’s 20-year DCS lifecycle standard; compatible with legacy TPS and modern Experion PKS simultaneously
- Reduced Spare Parts Complexity: Single SKU pair covers both TPS and Experion PKS chassis variants
System Architecture & Signal Flow
In a standard redundant power configuration, two TC-RPSC04 power supply modules are installed in adjacent slots of the Honeywell controller chassis. The TC-RPSCA1 controller card monitors both supply rails continuously via the chassis backplane bus. Under normal operation, both supplies share load equally (load-sharing mode) or one operates as primary while the second remains on hot standby (standby mode), depending on firmware configuration. Upon detection of an undervoltage, overcurrent, or thermal fault on the active supply, the TC-RPSCA1 issues an immediate switchover command, transferring full load to the standby TC-RPSC04 within the protection window. A fault alarm is simultaneously propagated to the Experion PKS operator station via the C-Bus or FTE network for maintenance dispatch.
Sourcing & Quality Verification
- Origin: Sourced from authorized Honeywell distribution channels and verified OEM inventory
- Inspection: Each unit undergoes visual inspection, label verification, and functional power-on test prior to shipment
- Packaging: Ships in original or equivalent ESD-safe anti-static packaging with foam cushioning
- Traceability: Serial number and date code recorded at dispatch; documentation available on request
- Warranty: 90-day Konmask operational warranty; extended warranty available upon request
Procurement Process
- Submit your RFQ via support@konmask.com or WhatsApp +0086 19859288691 with your required quantity and delivery timeline
- Receive a formal quotation with lead time, unit price, and shipping options within 24 business hours
- Confirm purchase order — we accept T/T bank transfer, PayPal, and major credit cards
- Unit ships within 1–3 business days from our warehouse; tracking number provided upon dispatch
- Post-delivery technical support available via email for installation and commissioning queries
Technical FAQ
Q: Are TC-RPSCA1 and TC-RPSC04 sold as a pair or individually?
A: They can be sourced individually or as a matched pair. Contact us to specify your requirement — we stock both configurations.
Q: Is this compatible with Experion PKS R500 and later firmware?
A: Yes. The TC-RPSCA1/TC-RPSC04 pair is backward and forward compatible across TPS R600 through Experion PKS R500+ releases. Confirm your chassis revision with our technical team if uncertain.
Q: Can I replace only the TC-RPSC04 power module without replacing the TC-RPSCA1 controller card?
A: Yes, provided the TC-RPSCA1 controller card is functional. The TC-RPSC04 is hot-swappable under live load.
Q: What is the lead time for bulk orders (>5 units)?
A: Standard lead time is 5–10 business days for quantities up to 10 units. Larger volumes are subject to availability — submit an RFQ for a firm commitment.
Q: Do you provide a Certificate of Conformance (CoC) or test report?
A: Yes. A CoC and functional test record are available upon request for orders of any quantity.
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Contact: support@konmask.com | +0086 19859288691
