Honeywell TK-PRS021 51404305-375 Control Processor Module

The TK-PRS021 (Product No. 51404305-375) is a high-performance control processor module manufactured by Honeywell. It executes core system control logic within industrial automation architectures, operating on an external 24 VDC supply while drawing specific internal logic power to maintain stable processing and communication tasks.

Power Architecture and Backup Support

The module requires internal supply rails of +5 V DC at 1.5 A and +3.3 V DC at 1.0 A. For data retention during power interruptions, it features a standard built-in non-rechargeable replaceable lithium battery providing 144 hours (6 days) of backup time. An optional Battery Extension Module (BEM) can further supply 120 hours (5 days) of rechargeable backup support.

Technical Specifications

Frequently Asked Questions

Q: What backup power options are available for the Honeywell TK-PRS021 processor module?

 A: The module includes a built-in non-rechargeable lithium battery providing 6 days of backup time, and supports an optional Battery Extension Module (BEM) for an additional 5 days of rechargeable backup capacity.

Q: What are the internal voltage and current requirements for module operation?

A: The unit requires internal power rails of +5 V DC at 1.5 A and +3.3 V DC at 1.0 A, operating from a primary 24 V DC supply source.