Product Brief
The Honeywell MC-TDOY23 field termination assembly provides isolated physical relay interfaces for digital output command signals. The hardware safely switches heavy field instrumentation loads using low-voltage control logic.
Functional Overview
The MC-TDOY23 digital output relay Field Termination Assembly (FTA) isolates and expands the switching capabilities of Honeywell MU-T series control architectures. Operating as an indispensable interface layer within a Distributed Control System (DCS), this board receives electronic control commands. Consequently, it translates low-level logic signals into robust mechanical switching operations.
Process plants rely on this assembly to actuate heavy solenoid valves, motor starters, and visual alarm indicators. By separating sensitive digital electronics from inductive field circuits, the assembly keeps control networks free from transient feedback.
Technical Specifications
- Manufacturer: Honeywell
- Model Designation: MC-TDOY23
- Part/Order Number: 51204166-175
- Component Type: Digital Output Relay Field Termination Assembly (FTA)
- System Family Compatibility: Honeywell MU-T Series / Experion TDC DCS
- Contact Arrangement Configuration: Single Pole Double Throw (SPDT)
- Maximum Contact Amperage Rating: 10A at 250VAC
- Physical Housing Dimensions: 12.0 cm x 6.3 cm x 30.7 cm
- Net Weight: 0.74 kg
- Country of Origin: United States
- International HS Code: 8537101190
- Environmental Ingress Rating: IP65-rated face protection barrier
- Ambient Operational Limits: -20°C to +70°C continuous operation
- Lifecycle Classification: Active component available for system expansion and maintenance spares
Key Operational Features
Heavy-Duty Structural Reliability
Severe processing areas expose electronics to corrosive components and impacts. Honeywell mounts the relay mechanism inside a ruggedized chassis framework. Therefore, the card resists degradation from airborne humidity, fine dust layers, and physical factory vibrations.
Precise Process Load Switching
Controlling heavy mechanical field hardware requires clean contact execution. The onboard SPDT relays manipulate large electrical currents up to 10A without causing contact welding. This reliable switching action maintains exact control timings for critical safety valves and automation pumps.
Simplified Field Wiring Integration
The standardized footprint aligns directly with standard industrial equipment cabinets. Because the terminal layout offers intuitive connection points, technicians can wire or replace field links during scheduled maintenance turnarounds without system rewriting.
Reviews
There are no reviews yet.