Honeywell MC-TDID52 51304441-275 Digital Input Module | Experion PKS

Product Overview

The Honeywell MC-TDID52 (51304441-275) serves as a high-density Digital Input (DI) module within the Honeywell Experion PKS and TDC 3000 control architectures. This 100% Brand New and original module monitors the status of up to 32 discrete field devices, including limit switches, push buttons, and sensor contacts. It translates binary field signals into synchronized data for the controller, enabling precise monitoring of plant-floor status and safety interlocks.

Technical Specifications

• Manufacturer: Honeywell

• Model Number: MC-TDID52

• Part Number: 51304441-275

• Input Channels: 32 Channels

• Input Type: Dry Contact

• Nominal Input Voltage: 24 VDC

• Input Current: 10 mA

• Input Impedance: 10 kΩ

• Response Time: 10 ms

• Isolation Voltage: 500 V

• Operating Temperature: -20°C to 60°C

• Mounting: DIN Rail

• Dimensions: 120 mm x 90 mm x 75 mm

• Weight: 1.36 kg (3.00 lbs)

Engineering Advantages

• High-Density Monitoring: The 32-channel architecture doubles the input capacity compared to standard 16-channel modules. This consolidation reduces the number of required I/O slots, optimizing cabinet space and lowering total infrastructure costs in large-scale deployments.

• Galvanic Isolation Protection: The module features 500V isolation voltage to shield internal system electronics from field-side electrical transients. This protective barrier prevents ground loops and ensures that localized electrical faults do not propagate to the central processor.

• Optimized for Dry Contacts: Specifically designed for dry contact inputs, the MC-TDID52 eliminates the need for external signal conditioning. It provides the wetting voltage required to sense contact closure, simplifying field wiring and reducing potential points of failure.

• Robust Signal Stability: The 10 kΩ input impedance and 10 ms response time filter out high-frequency noise and contact bounce. This ensures the DCS receives a stable, debounced signal even in electrically noisy environments near large motor starters or switchgear.

• Rugged DIN Rail Integration: The module utilizes a standard DIN rail mounting system, facilitating rapid installation and secure mechanical seating. The 1.36 kg heavy-duty chassis resists industrial vibrations, maintaining electrical contact integrity over long-term operation.

FAQs

• What is the primary application for the MC-TDID52? Engineers typically use this module to monitor a large volume of discrete states, such as valve position feedback, motor run/stop status, and industrial safety switch positions within the Experion PKS ecosystem.

• Can this module replace legacy digital input cards in a TDC 3000 system? The MC-TDID52 (51304441-275) functions as a modern high-density equivalent for several legacy DI models. Always verify your current I/O base and software revision to ensure full compatibility during a migration or replacement.

• Does the 24VDC power for the inputs come from the module? The module monitors 24VDC signals; however, you must ensure the field-side power distribution aligns with your specific FTA (Field Termination Assembly) or I/O base configuration to provide the necessary wetting current for the dry contacts.

• How do I verify that this unit is 100% Brand New? We supply each 51304441-275 in its original factory-sealed packaging. Every unit carries the original Honeywell serial number and manufacturing labels, ensuring you receive an unpowered, zero-hour component with maximum operational life.