Overview
Manuals
Model and Role
Unverified Ratings
Redundancy Service
Features:
- Honeywell identifies TK-PRR021 as a redundancy module.
- The reviewed manufacturer table explicitly describes the model as coated.
- The source lists the related TK-PRS021 C200 processor separately from this module.
The January 2023 Honeywell System HINTS model table describes TK-PRR021 as a coated redundancy module. The processor designation TK-PRS021 appears separately, so these are distinct functions. The cited page does not give electrical characteristics, slot count or a cross-reference for the site's additional 51309288-475 number. Earlier figures presented on this site therefore must not be treated as exact-model manufacturer ratings. The supplied item's full manufacturer label and the installed system's approved parts list are necessary to establish the exact execution. A model-level newsletter table is helpful for identity but is not a substitute for a release-specific installation manual.
For an authorized replacement, document the redundant-controller topology, current diagnostics, physical slot, mating hardware, revisions and approved application backup. Confirm the complete TK-PRR021 and 51309288-475 markings against Honeywell's parts record and use the service instructions for the actual controller release. A change in redundancy hardware can affect failover behavior, so post-work acceptance should include module recognition, partner health, communications and approved failover tests under the plant's risk controls. The January 2023 newsletter discusses Series A I/O family lifecycle changes, but it does not establish present-day support or end-of-life status for this particular redundancy module.
The TK-PRR021 51309288-475 Honeywell Coated Redundancy Module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell TK-PRR021 51309288-475 official technical documentation and product links.
This multi-page Honeywell technical document contains the exact model and its technical data. Apply the values to the supplied type number and verify its revision before installation.
Honeywell's page 12 model table explicitly identifies TK-PRR021 as a coated redundancy module. It lists a coated C200 processor under the separate TK-PRS021 identifier. The table does not map 51309288-475, so that additional site number must be checked against the actual item label and Honeywell parts records before it is used to assert an exact order identity.
The reviewed manufacturer table does not state chassis-slot count, supply voltage or current consumption for TK-PRR021. The previous site's numerical claims are therefore omitted from the verified specification table rather than being copied from a nearby model or reseller. Obtain the release-specific Honeywell hardware manual and approved cabinet design to establish electrical limits and installation fit for the actual system.
A redundancy-module exchange requires confirmation of paired controller hardware, revision, configuration and current partner health. Follow Honeywell's procedure and the plant's change-control and isolation rules. After fitting the approved part, verify module recognition, diagnostics, communications and failover behavior using an authorized acceptance test. A Series A I/O family phase-out statement in the newsletter is not proof of this exact module's current lifecycle status.
