HONEYWELL CC-PWRR01 Series C Redundant Power System
HONEYWELL CC-PWRR01 Series C Redundant Power System
Introduction
The HONEYWELL CC-PWRR01 (Part Number: 51199939-100) is an industrial-grade, heavy-duty redundant power supply system built specifically for Honeywell’s flagship Experion® Process Knowledge System (PKS) Series C platform.
Operating as the primary source of electrical energy for vital hardware components like the C300 Controller and Series C Input/Output Modules (IOMs), this system delivers highly regulated and continuous 24 VDC power.
It is an indispensable infrastructure asset in mission-critical processing applications where unexpected loss of power could cause massive plant downtime or safety hazards.
Unique Product Description
Engineered for ultimate fault tolerance in the process industries, the HONEYWELL CC-PWRR01 is not just an ordinary power brick, but a complete dual-redundant power system enclosure.
The chassis house up to two hot-swappable 24 VDC (20 Ampere) power supply modules working in parallel load-sharing configuration.
If one internal power supply suffers a fault or loses its incoming AC breaker line, the secondary unit instantly takes on the full 20A load with a seamless, zero-millisecond transition.
This “blade” configuration ensures that critical process automation controllers remain online indefinitely during maintenance or field utility power disruptions.
Technical Parameter Table
| Parameter | Specification / Value |
| Brand / Manufacturer | HONEYWELL (USA / Global) |
| Model Designation | CC-PWRR01 |
| Associated Part Number | 51199939-100 (Chassis System Assembly) |
| System Framework Compatibility | Experion PKS Series C Architecture (C300, C200E, Series C I/O) |
| Power Configuration | Fully Redundant (Dual Power Supply Module slots) |
| Input Voltage Range | 120 / 240 VAC (Universal AC Input) |
| Output Voltage (Normal) | 25.0 VDC to 26.0 VDC (Regulated under AC input) |
| Total System Capacity | 20 Amperes (20A) |
| Total Heat Dissipation | Approximately 145 Watts |
| Built-in Connector Interfaces |
• Six (6) 24 VDC power distribution connectors • One (1) C300 memory battery backup connector • One (1) isolated alarm contact port |
| Alarm Contact Rating | 24 V AC/DC at 0 to 65 mA (Electrically isolated relay) |
| Cooling Mechanism | Natural air convection (Fanless design for dust resistance) |
| Physical Weight | Approx. 3.0 kg (Complete assembly with modules) |
Product Advantages and Features
True Load-Sharing Redundancy: Two separate AC utility inputs can power each supply branch independently, eliminating single points of failure across the power distribution loop.
Hot-Swap Maintenance Capabilities: Faulty power bricks can be pulled out and replaced while the control cabinet remains entirely energized under active load conditions.
Integrated Distribution Topology: Features an 8-connector top interface sheet that cleanly splits 24 VDC output to multiple Carrier Channel Assemblies (CCAs) without messy external terminal jumpers.
Dedicated Ram Battery Interfacing: Incorporates a dedicated charging and pass-through line to feed memory backup battery arrays for C300 control modules, protecting volatile automation configurations during plant blackouts.
Fanless Convection Construction: Lacking fragile mechanical cooling fans, the chassis mitigates mechanical breakdown factors and excels inside sealed, dust-heavy electrical control rooms.
Application Cases
1. Continuous Refining Loops in Oil & Gas
In oil refinery control rooms, the CC-PWRR01 powers banks of C300 process controllers regulating distillation columns. When upstream utility switchgear tripped during a storm, the secondary power input of the CC-PWRR01 maintained constant DC voltage, preventing a catastrophic emergency shutdown.
2. High-Capacity Batch Chemical Plants
Deployed within complex chemical batching systems conforming to ISA S88.01 standards, this power unit supplies power to safety interlocks and remote IO grids. The system’s isolated dry alarm contacts alert SCADA operators of single-source utility drops immediately, before production lines degrade.
Related Models & Other Models in the Same Series
The CC-PWRR01 represents the redundant standard within the Series C power ecosystem, categorized alongside:
CC-PWRB01 (51199940-100): Redundant 20A Power System equipped with an integrated 24V Backup Battery Assembly box for up to 30 minutes of complete AC failure runtime.
CC-PWRN01 (51199937-100): Non-redundant, single power supply module configuration (20A) for non-critical standalone systems.
51202324-100 / 51403896-100: Horizontal DC Power Bus Bars (HDPB) and specialized 9-inch DC distribution cables used to bridge power into specific IOTA channels.
Installation and Maintenance
Installation Guidelines
Cabinet Mechanical Fastening: Mount the metal chassis assembly securely to the rear panel frame or dedicated sub-plate layout inside the Series C enclosure. Ensure adequate vertical spacing to assist passive thermal air convection.
AC Line Separation: For maximum reliability, wire Power Supply 1 and Power Supply 2 to two separate, independently breakered AC power grids (e.g., Grid A and an Uninterruptible Power Supply/UPS line).
Bus Bar Earthing: Bond the chassis grounding lug securely to the cabinet’s low-impedance copper master earth bar to dissipate transient industrial noise.
Harness Plug Engagement: Firmly seat the 24 VDC distribution cables into the top 8-pin interface header, securing locking clips to prevent looseness due to background industrial building vibration.
Maintenance Recommendations
Alarm Contact Testing: Periodically monitor the functional integrity of the dry contact loop using a multimeter during annual inspection shut-downs to ensure fault relays switch properly.
Clear Dust Buildup: Every six months, inspect the ventilated areas of the metal housing. Remove layered non-conductive fine particles using clean, low-pressure compressed air to prevent thermal accumulation.