Product Details
The Honeywell 8U-PWCNTA-CN, also cataloged as the 8U-PWCNTA-CN Power Control Module, operates as a dedicated hardware component for 24 VDC power regulation, distribution filtering, and backplane supply monitoring within Honeywell Experion PKS Series C platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 8U-PWCNTA-CN |
| Brand | Honeywell |
| Origin | USA |
| Weight | Approx. 0.85 kg |
| Dimensions | Standard Experion PKS Series C module footprint |
| Operating Temp | -40 deg C to +70 deg C |
| Power Consumption | Self-consumption approx. 15 W at 20 A full load rating |
| Input / Output Voltage | 24 VDC nominal |
| Maximum Continuous Current | 20 A |
| PCB Flammability Rating | UL 94V-0 |
| Hardware Revision | REV.A |
4-20 mA HART Loop Protocol and Channel-to-Channel Isolation
The module incorporates high-density filtering circuits and internal power bus isolation barriers to maintain channel-to-channel isolation across adjacent Series C I/O modules. By preventing high-frequency switching noise, ripple voltage, and common-mode transients on the primary 24 VDC power bus from coupling into analog processing circuits, the module ensures accurate field signal acquisition for 4-20 mA HART loop protocol instruments connected to the controller rack.
Frequently Asked Questions
Q: What is the purpose of the 94V-0 designation marked on the PCB?
A: The 94V-0 rating designates compliance with the UL 94 plastic flammability standard, certifying that device burning stops within 10 seconds on a vertical specimen without flaming drips.
Q: Can two 8U-PWCNTA-CN power modules be installed for redundant power distribution?
A: Yes, the module architecture supports parallel diode-ORing configurations to provide dual-redundant 24 VDC supply feeds across Experion PKS Series C module carriers.
Q: What protection mechanisms are integrated into the 20 A DC power path?
A: The module includes overcurrent sensing, reverse polarity protection, and overvoltage clamping to isolate fault conditions and protect connected backplane logic.
Field Installation Guidelines
- De-energize incoming 24 VDC supply lines before seating the module into the Series C power distribution carrier.
- Align the circuit card assembly with the rack guide rails and slide in firmly until the locking lever fully engages the backplane connector.
- Torque all terminal block screw connections to manufacturer specified limits to prevent thermal hot spots under 20 A continuous loading conditions.
- Ensure proper cabinet ventilation and clear space around the power module heat sink to allow natural convection cooling.
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.
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