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Product Overview

The TC-RPCXX1 is an authoritative redundant AC power supply module designed for the Honeywell Experion PKS and TDC 3000 distributed control system (DCS) platforms. This module serves as a mechanical necessity for high-availability architectures, providing stable 2Regulated 24 VDC output to critical controllers and I/O modules. By supporting a wide input voltage range of 85–265 VAC, the TC-RPCXX1 accommodates global power standards (120/240 VAC) while offering automatic switchover capabilities. This ensures that a single power feed failure does not compromise the operational integrity of your process, making it a trustworthy solution for refineries, chemical plants, and mission-critical power generation facilities.

Detailed Technical Specifications

Attribute Details
Manufacturer Honeywell
Model Number TC-RPCXX1
Product Type Redundant Power Supply Module
System Compatibility Honeywell Experion PKS, TDC 3000
Input Voltage Range 85–265 VAC (Universal)
Output Voltage 24 VDC Regulated
Frequency Range 47–63 Hz
Input Power 110 VA / 110 W
Max Inrush Current 20 A
Efficiency High-efficiency AC-to-DC conversion
Operating Temperature -25 °C to +70 °C (-13 °F to 158 °F)
Isolation/Protection Overload, Short-circuit, and Thermal protection
Enclosure Rating IP20
Weight 1.5 kg (Unit) / 3.0 kg (Shipping)
Certifications CE, UL, CSA Industrial Compliance

Installation and Engineering Application

  • Redundant Deployment: For maximum system availability, the TC-RPCXX1 should be deployed in pairs within the power chassis. This allows the system to remain authoritative even if one power module or its primary AC source fails.

  • Thermal Considerations: With an operating temperature ceiling of +70 °C, the TC-RPCXX1 is engineered for the high-density heat environments of industrial control cabinets. Ensure at least 50mm of clearance around the module to facilitate natural convection.

  • Input Source Diversity: To achieve true power redundancy, connect each TC-RPCXX1 to independent AC circuits. This protects the DCS against upstream breaker trips or localized grid failures.

  • Status Monitoring: Utilize the front-panel LED indicators for real-time diagnostics. A "Fault" LED or loss of "Status" LED requires immediate technical intervention to maintain the trustworthy power backbone of the control system.

  • Mechanical Securing: Align the module with the guide rails and press firmly until the backplane connectors engage. Tighten the retention screws to prevent vibration-induced disconnects, a common issue in rotating machinery environments.

Technical FAQ

Does the TC-RPCXX1 support hot-swapping?

Yes. In a redundant configuration, a single TC-RPCXX1 can be removed and replaced while the system remains powered. The secondary module will automatically assume the full load, ensuring zero downtime for the Experion controllers.

How does the module handle voltage fluctuations?

The TC-RPCXX1 features a wide-input buffer (85–265 VAC). This is a mechanical necessity for plants with unstable power grids, as it filters spikes and sags to provide a steady, clean 24 VDC output to sensitive electronic components.

What is the significance of the 20A inrush current?

The 20A inrush current rating defines the peak load during the first few milliseconds of startup. Engineers should size upstream circuit breakers accordingly to prevent nuisance tripping when the TC-RPCXX1 is initially energized.

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