Overview
Manuals
Model Identity
Electrical Claims
Lifecycle and Service
Features:
- Honeywell's own table identifies TK-PRS021 as a C200 control processor.
- The cited model description explicitly identifies a coated execution.
- The neighboring TK-PRS022 entry is a distinct C200E processor model.
The January 2023 Honeywell System HINTS newsletter lists TK-PRS021 in a table of Series A and controller model numbers. Its description is C200 control processor, coated. The same table separately names TK-PRS022 as a C200E processor. This is strong manufacturer evidence for the model's role and coating, but it does not provide a datasheet of supply voltages, current consumption, processor architecture or communications. Numeric values previously displayed on this site should not be attributed to this exact part without another manufacturer record. The 51404305-475 suffix also requires a label or parts-list match.
Before an authorized C200 processor replacement, identify the complete hardware label and revision, controller chassis, network and I/O interfaces, and current firmware and application backup. Obtain the Honeywell service procedure for the installed release and follow plant change-control and isolation requirements. After installing an approved replacement, verify startup diagnostics, communication, configured control execution and affected I/O under the commissioning plan. Honeywell's newsletter discusses a January 2023 phase-out transition for Series A I/O parts connected under C200/C200E controllers, but that statement should not be transformed into a precise present-day lifecycle claim for TK-PRS021 itself.
The TK-PRS021 51404305-475 Honeywell Coated C200 Control Processor may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell TK-PRS021 51404305-475 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 explicitly lists TK-PRS021 as a coated C200 control processor. TK-PRS022 is separately listed as a C200E control processor, so a shared controller-family label does not demonstrate interchangeability. The reviewed table does not map 51404305-475 to TK-PRS021. Check the supplied unit's label and a manufacturer parts record before treating that additional number as an exact order identity.
The reviewed Honeywell newsletter does not state supply voltage, individual power rails, current draw or counter size for TK-PRS021. Those numbers appeared on the previous page without exact-model manufacturer support and are omitted from the verified parameter table. Use the appropriate Honeywell C200 hardware manual and installed chassis design for power and compatibility decisions rather than generic reseller specifications.
Honeywell's newsletter describes a January 2023 phase-out transition for Series A I/O parts connected under C200/C200E controllers. That family statement is not a current lifecycle determination for this exact processor. Confirm present support and approved upgrade path with Honeywell. A replacement also needs matching firmware, application backup, chassis and network configuration, followed by controlled startup and point-by-point acceptance testing.
