Description
Honeywell DC-TDOD51 (51307611-176) Experion C-series Digital Output IOTA Termination Assembly
Product Description
The DC-TDOD51 (51307611-176) is the IOTA (Input/Output Termination Assembly) field wiring terminal base matching Honeywell DC-PDOD51 electronic DO module for Experion C200/C300 DCS. It is the physical termination board for field cables, providing 32-channel field wiring terminals, power distribution, overcurrent protection and signal routing between the DC-PDOD51 electronic module and field 24VDC actuators. It mates directly with DC-PDOD51 via internal connector, receives control signals from the electronic module and distributes power to field solenoid valves, indicator lamps and auxiliary relays. It has built-in group fuses and channel status indicators for easy field wiring inspection and fault troubleshooting. Conformal coating version is available for corrosive, dusty plant environments. Widely used in petrochemical, oil & gas and power plant Experion DCS discrete output marshalling cabinet wiring.

DC-TDOD51
Technical Specifications
- Part Number: DC-TDOD51, 51307611-176
- Manufacturer: Honeywell
- Series: Experion C-series DCS IOTA
- Device Type: Digital Output IOTA Field Termination Base
- Channels: 32 channels, matched with DC-PDOD51 32CH DO electronic module
- Field Voltage: 24VDC
- Termination: Screw terminal blocks for field cable landing
- Protection: Group fuse protection for field output circuits
- Indicator: Channel status LED indicators
- Interface: Internal backplane connector to plug into DC-PDOD51
- PCB: Conformal coated PCB option available
- Operating Temperature: -40°C ~ +70°C
- Storage Temperature: -40°C ~ +85°C
- Relative Humidity: 5%~95%, non-condensing
- Mounting: DIN rail I/O rack installation, paired with C-series I/O chassis
- Weight: Approx. 0.36 kg
- Certifications: CE, UL
Key Features
- Dedicated IOTA terminal base for DC-PDOD51 32-channel digital output module
- Screw terminal block for direct field cable termination, simplifies marshalling wiring
- Built-in group fuse protection, prevents field short-circuit damage spreading
- Channel LED status lights for quick on-site troubleshooting of output status
- Seamless mechanical and electrical mating with DC- electronic module
- Conformal coating PCB option for corrosive industrial plant environments
- Supports hot-swap maintenance of paired DC- electronic module
- Designed for 24VDC source-type discrete output field wiring
Application Scenarios
- Petrochemical refinery ESD solenoid valve control wiring termination
- Thermal power plant boiler auxiliary pump/fan interlock output signal terminal
- Oil & gas pipeline valve actuator and alarm lamp field wiring interface
- Chemical plant safety interlock discrete output marshalling cabinet
- Fertilizer plant emergency shutdown system field signal termination
- Water treatment plant pump and valve digital output wiring assembly
- Pulp & paper mill machinery safety interlock output terminal assembly
- Spare replacement of Experion C-series DO IOTA terminal base

DC-TDOD51
Matching / Auxiliary Components
- Honeywell DC- 32CH 24VDC digital output electronic module
- C200 / C300 controller and C-series I/O rack backplane
- 24VDC isolated field power supply
- Shielded twisted pair field cable and cable glands
- Spare replacement fuses for IOTA group protection
- Experion PKS Control Builder configuration software
- DIN rail rack mounting accessories and retaining clips
- Surge protection barriers installed before IOTA field terminals
Related Honeywell Experion C-series IOTA & Electronic Module Models (9 pcs)
- DC-TDOD51 Digital Output IOTA for DC-
- DC- 32CH 24VDC DO electronic module
- DC-TDIL51 Digital Input IOTA for DC-PDIL51
- DC-PDIL51 32CH 24VDC DI electronic module
- CC-TAIX01 Analog Input IOTA
- CC-PAIX01 Analog Input electronic module
- CC-TAOY01 Analog Output IOTA
- CC-PAOY01 Analog Output electronic module
- CC-PCF90 C300 Controller Module
