Description

The HONEYWELL TC-PRS021 is a high-availability,redundant power supply module engineered for Honeywell’s Experion®Process Knowledge System(PKS),particularly within Safety Manager and C300 controller environments.Delivering a stable,regulated 24 VDC output with up to 200 W capacity,the TC-PRS021 supports hot-swap operation,automatic load sharing,and comprehensive self-diagnostics—ensuring continuous power to safety-critical I/O,logic solvers,and communication modules in demanding industrial applications.

Application Scenarios

At a major ethylene cracker plant in Texas,an unplanned shutdown occurred when a single non-redundant power supply failed during a routine maintenance window—causing the entire Safety Instrumented System(SIS)to de-energize and trigger a full plant trip.The incident cost over$8 million in lost production and regulatory penalties.In response,the facility upgraded all SIS cabinets to use dual HONEYWELL TC-PRS021 modules in redundant configuration.During a subsequent grid disturbance that caused one supply to fault,the second TC-PRS021 seamlessly assumed 100%load without voltage sag or communication loss.The system remained online,and operators executed a controlled ramp-down instead of an emergency shutdown.This upgrade not only met IEC 61511 compliance requirements but also elevated plant availability to 99.98%.

Parameter

Main Parameters Value/Description

Product Model TC-PRS021

Manufacturer Honeywell Process Solutions

Product Category Redundant Power Supply Module(for Experion PKS)

Output Voltage 24 VDC±2%(regulated)

Maximum Output Power 200 W continuous

Output Current Up to 8.3 A 24 VDC

Input Voltage Range 85–264 VAC(universal),50/60 Hz;or 100–370 VDC

Redundancy Mode Active/active parallel with current sharing

Hot-Swap Support Yes–can be replaced under load without system interruption

Mounting DIN rail(integrated into Honeywell C300/Safety Manager chassis)

Operating Temperature 0°C to+60°C(derating above 50°C)

Diagnostics Front-panel LEDs:POWER OK,FAULT,REDUNDANCY STATUS

Communication Interface Integrated into Honeywell FTE(Fault Tolerant Ethernet)diagnostics bus

Safety Certification TÜV Rheinland certified to IEC 61508 SIL 3,IEC 61511,CSA,CE,UL/cUL

Efficiency>88%at full load

Protection Features Over-voltage,over-current,short-circuit,thermal shutdown

Technical Principles and Innovative Values

Innovation Point 1:True N+1 Redundancy with Dynamic Load Balancing

Two TC-PRS021 units share load equally in normal operation.If one fails,the other instantly supplies full power—no switching delay,no voltage dip—critical for SIL 3 safety loops.

Innovation Point 2:Seamless Integration with Experion Diagnostics

The TC-PRS021 reports real-time status(input voltage,output current,temperature,fault codes)directly to the Experion operator station—enabling predictive maintenance and reducing mean time to repair(MTTR).

Innovation Point 3:Universal Input for Global Deployment

Accepts both AC and DC input sources,allowing plants to use either utility power or DC battery banks—ideal for offshore platforms or remote sites with hybrid power systems.

Innovation Point 4:Designed for Functional Safety Lifecycle Compliance

From design to decommissioning,the TC-PRS021 supports full safety lifecycle documentation,including FMEDA reports and safe failure fraction data—accelerating SIL verification.

Application Cases and Industry Value

In a Norwegian offshore oil platform,space and weight constraints limited redundancy options.By deploying HONEYWELL TC-PRS021 modules in compact Safety Manager racks,engineers achieved full power redundancy without adding cabinets.During a lightning strike that disrupted the main AC feed,the system switched to DC backup via the same TC-PRS021 inputs—keeping emergency shutdown valves under control.The platform avoided a potential hydrocarbon release,demonstrating how integrated power resilience enhances process safety.

Similarly,a pharmaceutical manufacturer in Germany uses TC-PRS021 in GMP-compliant cleanrooms where batch integrity is non-negotiable.Any power anomaly could ruin a$2M bioreactor run.With redundant TC-PRS021 supplies,the control system has maintained 100%uptime over three years—meeting FDA 21 CFR Part 11 audit requirements.

Related Product Combination Solutions

Honeywell C300 Controller:Primary user of TC-PRS021 power in Experion PKS.

Honeywell Safety Manager(SM):Requires dual TC-PRS021 for SIL 3 certification.

FTEB(Fault Tolerant Ethernet Bridge):Powered by TC-PRS021 for network redundancy.

TC-IOM Series I/O Modules:Depend on stable 24V from TC-PRS021 for analog/digital signals.

Phoenix Contact QUINT4-PS/3AC/24DC/10:General-purpose redundant PSU—but lacks Experion integration and SIL certification.

Allen-Bradley 1606-XLS200F24:Competitor—but not certified for Honeywell Safety Manager ecosystems.

Honeywell TC-PRS022:Higher-power variant(300W)—use when driving dense I/O racks.

Honeywell Experion LC(Local Control):Can also utilize TC-PRS021 in distributed architectures.

Installation,Maintenance,and Full-Cycle Support

The HONEYWELL TC-PRS021 is installed directly into designated slots in Honeywell C300 or Safety Manager chassis.No external wiring is needed for power distribution—it connects via backplane.Configuration is automatic;the system detects redundancy status at startup.

选择深圳长欣，享受无忧的售后服务和高品质产品。