Product Details
The Honeywell TC-PRR021, also cataloged as the 51309288-125 Redundancy Module, operates as a dedicated hardware component for power distribution switching and bus redundancy management within Honeywell Experion PKS platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 51309288-125 |
| Brand | Honeywell |
| Base Model | TC-PRR021 |
| Product Type | Redundancy Modules |
| Origin | USA |
| Weight | 290 g (0.64 lbs) |
| Dimensions | Standard C200 / C300 rack module size |
| Operating Temp | 0 deg C to +60 deg C |
| Power Supply | 24 VDC |
| Current Consumption | 90 mA at 24 VDC |
| Output Voltage | 5.1 VDC |
| Output Current | 1.0 A at 5.1 VDC |
Channel-to-Channel Isolation and Loop Protocol Processing
The TC-PRR021 module executes power rail isolation and fault management across redundant controller channels. Designed to power internal bus electronics, the unit maintains regulated 5.1 VDC output while decoupling dual 24 VDC power sources. This electrical separation provides channel-to-channel isolation, suppressing common-mode line noise and preventing power fault propagation across backplane segments interfacing 4-20 mA HART loop protocol field termination assemblies.
Frequently Asked Questions
Q: What happens to module output if one of the dual 24 VDC supply inputs fails?
A: The module internal diode-ORing circuit automatically maintains continuous 5.1 VDC output power without voltage interruption or bus reset.
Q: Can the TC-PRR021 redundancy module be replaced while the system rack is energized?
A: Yes, the module supports hot-swapping within redundant rack configurations provided the parallel redundant power path is fully operational.
Field Installation Guidelines
- ESD Protection: Ground yourself using a static-dissipative wrist strap before inserting or removing the module from the chassis.
- Slot Alignment: Slide the module firmly into the designated rack slot guides until the backplane connectors seat completely.
- Terminal Wiring: Verify supply polarity on the 24 VDC input terminals prior to energizing cabinet power feeds.
- Cable Separation: Keep primary 24 VDC power conductors separated from low-level signal cables within enclosure raceways.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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