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TK-PRR021 Honeywell Redundancy ModulesTK-PRR021 Honeywell Redundancy ModulesTK-PRR021 Honeywell Redundancy Modules
TK-PRR021 Honeywell Redundancy Modules
TK-PRR021 Honeywell Redundancy Modules
TK-PRR021 Honeywell Redundancy Modules

TK-PRR021 Honeywell Redundancy Modules


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PRODUCT SKU : TK-PRR021 51309288-275

PRODUCT TYPE : Redundancy Modules

PRODUCT VENDOR : Honeywell


  • 100% Genuine Parts – Risk-Free 30-Day Returns
  • 1-Year Warranty & Expert Support for Every Order

Product Details

The Honeywell TK-PRR021, also cataloged as the TK-PRR021 Redundancy Modules, operates as a dedicated hardware component for C200 controller failover execution within Experion PKS system architectures.

Hardware Specifications

Parameter Specification
Model TK-PRR021 (Part No. 51309288-275)
Brand Honeywell
Origin USA / Global Manufacturing
Weight 0.45 kg (Shipping Weight: 2 kg)
Operating Temp 0 to +60 deg C
Power Consumption 0.090 A at 24 VDC / 1.000 A at 5 VDC / 0.750 A at 3.3 VDC / 0.007 A at 1.2 VDC
Product Type Redundancy Module (RM)
Chassis Slots Used 2 slots
Controller Support C200 Controller Redundancy Pair

Channel-to-Channel Isolation and Deterministic Synchronization

The TK-PRR021 module provides dedicated fiber-optic sync link routing between primary and secondary C200 controller nodes. Operating alongside field analog process loops using the 4-20 mA HART loop protocol, the redundancy interface maintains full channel-to-channel isolation across backplane buses to block common-mode noise and ground loops.

High-speed memory reflection cycles between redundant C200 processors occur continuously without impacting control execution loops or disturbing analog signal integrity across local I/O subnets.

Frequently Asked Questions

Q: How many chassis slots does the TK-PRR021 redundancy module require?

A: The TK-PRR021 occupies 2 adjacent slots within the Honeywell C200 rack chassis.

Q: What are the backplane power supply current draws for the TK-PRR021 module?

A: The module draws 0.090 A at 24 VDC, 1.000 A at 5 VDC, 0.750 A at 3.3 VDC, and 0.007 A at 1.2 VDC from the backplane power bus.

Q: Can the redundancy module be replaced while the primary controller is operating?

A: Replacement must follow Honeywell C200 maintenance procedures to ensure state synchronization is safely held by the active redundant pair during module swap.

Field Installation Guidelines

  • Ensure the C200 chassis power supply capacity meets total backplane current requirements, including the multi-rail power draw of the TK-PRR021.
  • Fully seat the module into the two designated chassis slots and tighten the top and bottom retaining screws to ensure proper backplane connection.
  • Connect dedicated redundancy link cables directly between paired TK-PRR021 modules without routing through intermediary switches.
  • Maintain clean optical fiber connections on redundancy link ports and adhere to minimum cable bend radius limits in 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.




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