Honeywell TC-PRR021 Relay & Redundancy Module 51309288-225

Honeywell TC-PRR021 51309288-225 Redundancy Module

The Honeywell TC‑PRR021 51309288‑225 is a high-reliability redundancy module designed for the C200 control system. It enables seamless processor redundancy, automatically switching to a backup processor during faults, thereby ensuring uninterrupted operation. Moreover, this module minimizes downtime and helps engineers maintain continuous process control in critical industrial environments.

Compact and robust, the TC‑PRR021 fits standard chassis configurations while performing reliably under harsh conditions. In addition, built-in diagnostics and galvanic isolation enhance safety and monitoring capabilities, making it a critical component for systems requiring high availability.

Technical Specifications

• Model / Part Number: TC‑PRR021 51309288‑225

• Type: Redundancy Module / Digital Output Relay Module

• Number of Channels: 16 relay output channels

• Output Type: Relay contacts (NO/NC)

• Rated Voltage: 24 VDC / 120 VAC 

• Output Current: Up to 2 A per channel

• Isolation: Channel-to-channel and channel-to-system galvanic isolation

• Diagnostics: Built-in self-diagnostics, fault detection, LED indicators

• Operating Voltage: Powered via Series‑A chassis backplane

• Dimensions: 267 × 178 × 51 mm 

• Weight: 0.6 kg

• Operating Temperature: –20 °C to +55 °C

• Humidity Range: 5% – 95% non-condensing

• Certifications: CE, UL, CSA, TUV

• Origin: USA

FAQ

Q1: What is the primary function of the TC‑PRR021?
It provides processor redundancy, automatically switching to a backup processor during system faults.

Q2: How many channels does the module support?
The TC‑PRR021 supports 16 relay output channels for driving field devices.

Q3: Which systems are compatible with this module?
It integrates with Honeywell C200, Experion PKS Series‑A I/O, TPS, and TDC 3000 systems.

Q4: What diagnostic features are included?
Built-in diagnostics and LED indicators simplify fault detection and system monitoring.

Q5: Can the module operate in harsh industrial environments?
Yes, it supports wide temperature and humidity ranges, ensuring reliable operation.