Process Control Solution – Honeywell MC-TDOY23 | C300 Series Experion PKS
Where This Product Is Used
The Honeywell MC-TDOY23 (P/N 51204166-175) is a Digital Output Relay module engineered for mission-critical process automation environments. It is widely deployed in:
- Oil & Gas Refineries – Controlling solenoid valves, motor starters, and shutdown actuators in upstream/downstream processing units.
- Chemical & Petrochemical Plants – Driving relay-isolated outputs for pump control, agitator interlocks, and emergency shutdown (ESD) circuits.
- Power Generation Facilities – Interfacing DCS logic with high-voltage field devices such as circuit breakers and contactor coils.
- Pulp & Paper Mills – Managing discrete output signals for conveyor drives, valve actuators, and process interlocks.
- Water & Wastewater Treatment – Activating pumps, blowers, and dosing systems via relay-isolated digital commands.
- Pharmaceutical Manufacturing – Providing galvanically isolated outputs for clean-room HVAC, sterilization, and batch process control.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | MC-TDOY23 |
| Honeywell P/N | 51204166-175 |
| Module Type | Digital Output – Relay |
| Series / Platform | C300 Controller / Experion PKS |
| Output Channels | 16 relay output points (typical) |
| Output Type | Dry contact relay (Form A / SPST) |
| Contact Rating | 24 VDC / 120 VAC, 2 A resistive (per channel) |
| Isolation | Galvanic isolation between field and system bus |
| Communication | C300 FIM backplane interface |
| Operating Temperature | 0 °C to 60 °C (32 °F to 140 °F) |
| Humidity | 5% to 95% RH, non-condensing |
| Weight | 700 g (approx.) |
| Mounting | DIN-rail / Experion I/O chassis |
Specifications are based on Honeywell published data. Verify against your project’s SDS/IDS documentation before installation.
Why Engineers Specify This Model
- Relay Isolation – Dry-contact outputs eliminate ground-loop interference and protect the DCS backplane from field-side transients.
- Seamless C300 Integration – Plug-and-play compatibility with Honeywell Experion PKS C300 controllers; no additional signal conditioning required.
- High Channel Density – Maximizes cabinet real estate while reducing wiring complexity in large-scale process plants.
- Proven Field Reliability – Widely installed across SIL-rated and non-SIL applications; long production history ensures spare-part availability.
- Firmware Transparency – Module identity and diagnostics are fully visible within Experion Control Builder for rapid fault isolation.
Complete System Bill of Materials
For a fully operational C300 digital output relay loop, the following components are typically required:
- Honeywell MC-TDOY23 (51204166-175) – Digital Output Relay Module (this item)
- C300 Controller Module (e.g., MC-CCRO2) – Process controller
- Field Interface Module (FIM) – Backplane communication bridge
- I/O Link Cable – FIM-to-chassis interconnect
- Experion PKS I/O Chassis – Module mounting rack
- 24 VDC Power Supply – Field-side relay coil power
- Terminal Block / Marshalling Panel – Field wiring termination
Contact us to source any of the above components as a complete kit.
Compliance & Industry Standards
- CE Marked – EU Low Voltage and EMC Directives
- UL Listed – Industrial control equipment
- IEC 61131-2 – Programmable controller I/O module requirements
- ISA-S71.04 – Airborne contaminants (G1/G2 environments)
- RoHS Compliant – Restriction of Hazardous Substances
Quality Assurance & Sourcing
Every MC-TDOY23 unit offered by Konmask.com undergoes a structured inspection process:
- Visual inspection for physical damage, corrosion, and label integrity
- Firmware version verification against Honeywell release notes
- Functional bench test (where applicable) prior to shipment
- Original manufacturer packaging or anti-static protective packaging
- Full traceability documentation available on request
We source from authorized distributors, certified surplus channels, and direct OEM stock to ensure authenticity.
How to Source This Part
- Add to Cart – Click the purchase button above to place an order directly.
- Request a Quote – For volume orders (>3 units) or project BOM sourcing, email support@konmask.com for a competitive quote within 24 hours.
- Expedited Shipping – DHL / FedEx international express available. Lead time: 3–7 business days for in-stock units.
- Technical Pre-Sales Support – Our engineers can verify compatibility with your existing Experion PKS architecture before purchase.
Application-Specific FAQ
Q: Is the MC-TDOY23 compatible with Experion PKS R500 and later releases?
A: Yes. The module is supported across Experion PKS R400 through current releases. Confirm firmware compatibility in your site’s Control Builder configuration.
Q: Can this module be used in SIL 2 safety loops?
A: The MC-TDOY23 is a standard (non-SIL) digital output module. For SIL-rated applications, Honeywell’s Safety Manager or FSC platform modules are required.
Q: What is the maximum cable length from the module to field devices?
A: Honeywell recommends a maximum of 300 m (1,000 ft) for 24 VDC relay output wiring under standard installation conditions. Consult the I/O module installation manual for derating guidelines.
Q: Do you offer a warranty on surplus/refurbished units?
A: Yes. All units carry a 90-day functional warranty. Extended warranty options are available — contact us for details.
Q: Can I return a module if it is incompatible with my system?
A: We accept returns within 30 days of delivery for unused, uninstalled modules in original condition. Please contact support before initiating a return.
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