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The Honeywell MC-TDID72 (Part Number: 51303928-150) serves as a high-density interface between field devices and the control system. It monitors discrete states from equipment such as switches, sensors, and relays.
We offer this component as 100% brand new and original, ensuring factory-spec performance for mission-critical control architectures.
| Parameter | Specification |
|---|---|
| Model Number | MC-TDID72 |
| Part Number | 51303928-150 |
| Channel Density | 32 Isolated Digital Input Channels |
| Input Voltage | 24 VDC |
| Response Time | < 1 Millisecond |
| Operating Temperature | -40°C to +70°C (-40°F to +158°F) |
| Dimensions | 120 mm × 75 mm × 30 mm |
| Weight | 0.5 kg |
| Output Range | 0–30 VDC |
High-Speed Signal Capture
With a response time of less than 1 ms, the module enables near-instantaneous detection of field state changes, supporting high-speed trip logic and safety interlocks.
Enhanced Channel Isolation
Each input channel is electrically isolated, protecting control electronics from voltage spikes, transients, and ground loop disturbances.
Extreme Climate Resilience
Designed for harsh environments, the module operates reliably from -40°C to +70°C, making it suitable for outdoor panels and remote installations without additional climate control.
High-Density Integration
The compact 120 mm footprint integrates 32 channels in a single module, reducing cabinet space and minimizing I/O rack requirements in large systems.
Is this module a direct replacement for older TDC 3000 input cards?
Yes, the MC-TDID72 is fully compatible with existing Honeywell TDC 3000 and Experion system architectures.
Does the product ship with a warranty?
Yes, it is supplied as a 100% brand new original unit with standard factory warranty coverage.
Can I use this module with NPN or PNP field devices?
The module is designed for 24VDC digital inputs. Proper wiring and polarity should be confirmed based on the specific field device type.
How does the isolation benefit the system during a short circuit?
Channel-level isolation confines electrical faults to the affected input, preventing propagation to other channels or the backplane, thereby enhancing system reliability.