Honeywell TC-RPCXX1 Redundant Power Supply

This redundant power supply module ensures continuous operation for Honeywell Experion control systems. The TC-RPCXX1 provides fault-tolerant power delivery with dual AC or DC input configurations. It automatically switches between input sources during power disturbances or source failures. System engineers choose this module for critical process applications requiring maximum power availability. Its hot-swappable design allows replacement without system shutdown.

Technical Specifications Summary

Parameter	Specification
Input Voltage Options	115 V AC or 230 V AC (field-selectable)
Input Frequency	47-63 Hz for AC operation
DC Input Option	24 V DC or 48 V DC (depending on variant)
Nominal Output Voltage	+5 V DC, +15 V DC, -15 V DC
Output Current (5V)	25 A maximum
Output Current (±15V)	3 A maximum per rail
Total Output Power	180 W maximum
Efficiency	85% typical at full load
Redundancy Mode	Active/standby with automatic changeover
Changeover Time	< 0.5 ms for seamless transition
Input Protection	Fuse and surge suppression
Output Protection	Overcurrent, overvoltage, and short-circuit
Diagnostic Interface	Status relay contacts and LED indicators
Status Indicators	Input OK, Output OK, Redundancy active
Hot-Swappable	Yes, with online replacement capability
Dimensions (H x W x D)	130 mm x 40 mm x 120 mm
Weight	1.8 kg
Operating Temperature	0 °C to +55 °C
Storage Temperature	-40 °C to +85 °C
Relative Humidity	5% to 95% non-condensing

Redundancy Architecture and Power Management

The module implements a true redundant power architecture for maximum system availability. Two separate input sources connect to the module for diverse power feeds. The TC-RPCXX1 continuously monitors both input sources for voltage and frequency stability. It selects the primary source based on user-defined priority settings. If the primary source fails, the module switches to the secondary source instantly. This changeover occurs in less than 0.5 milliseconds without output interruption. The module also provides output power conditioning and filtering for clean DC delivery. This architecture ensures uninterrupted control system operation.

Input Configuration and Source Options

The module accommodates various input power configurations for global applications. Users select between 115 V AC and 230 V AC through internal jumpers. The TC-RPCXX1 also accepts 24 V DC or 48 V DC input in DC variants. This flexibility suits different plant power distribution standards worldwide. AC input frequency tolerance covers 47 to 63 Hz for universal compatibility. Each input includes a fuse and surge suppression for overvoltage protection. The module automatically locks out brownout conditions to prevent unstable operation. These features ensure reliable power sourcing in diverse industrial facilities.

Output Specifications and Load Capacity

The module provides regulated DC outputs for all system power requirements. It delivers +5 V DC at up to 25 amperes for logic and communication circuits. The TC-RPCXX1 also supplies +15 V DC and -15 V DC at 3 amperes each. Total output power capacity reaches 180 watts for ample system margin. Output voltages remain within ±2% regulation for stable operation. The module includes sensing and remote voltage adjustment functions. Overcurrent protection limits each output to safe current levels. This comprehensive power delivery suits full I/O rack configurations.

Protection Features and Fault Detection

The module incorporates extensive protection for both the power supply and connected equipment. Overcurrent protection on each output prevents damage from overload conditions. Overvoltage protection clamps outputs at safe levels during regulator faults. The TC-RPCXX1 also includes short-circuit protection on all outputs. A status relay provides remote fault indication to the host controller. Front-panel LEDs display input status, output health, and redundancy mode. The module automatically shuts down during overtemperature conditions for safety. These protective features ensure reliable power delivery in all operating conditions.

Mechanical Design and Hot-Swappable Installation

The module features a rugged design for industrial power supply applications. It measures 130 millimeters high, 40 millimeters wide, and 120 millimeters deep. The unit weighs 1.8 kilograms with its robust metal housing and internal components. The TC-RPCXX1 supports hot-swappable replacement without powering down the system. A front-panel handle facilitates easy removal and insertion during maintenance. All input and output connections use screw-type terminal blocks for secure wiring. The module fits into standard Honeywell chassis positions for straightforward installation.

Environmental Specifications and Long-Term Reliability

Industrial environments require robust power supplies with extended operational life. The TC-RPCXX1 operates reliably from 0 °C to 55 °C ambient temperatures. Storage conditions range from -40 °C to 85 °C for shipping and warehousing. Humidity tolerance covers 5% to 95% without condensation affecting operation. The module includes forced-air cooling for efficient heat dissipation. High-quality electrolytic capacitors ensure long service life and minimal maintenance. These features deliver dependable power for critical process automation systems.