Overview
Configured for discrete field load switching in Honeywell industrial control systems, the Honeywell MC-TDOR22 51309150-175 (MC-TDOR22 Digital Output Relay FTA) provides direct electrical interface execution through 16 electromechanical relay output channels. The assembly supports switching applications up to 240 Vac or 125 Vdc and supports redundant system configurations. CE compliance and conformal coating are specified for the supplied hardware.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | MC-TDOR22 51309150-175 |
| Base Model | MC-TDOR22 |
| Brand | Honeywell |
| Product Type | Digital Output Relay FTA |
| Output Channels | 16 |
| Output Type | Electromechanical relay outputs |
| Operating Voltage | Up to 240 Vac / 125 Vdc |
| Redundancy Support | Supported |
| CE Compliance | Yes |
| Protective Coating | Conformal coated |
Channel Interface and Process Control Signal Practices
The Honeywell MC-TDOR22 51309150-175 performs discrete electrical switching rather than 4-20 mA HART loop measurement or transmission. However, within a Honeywell process control architecture, proper channel separation and field wiring practices remain important when relay outputs operate alongside analog instrumentation circuits.
Route relay load conductors separately from low-level analog and communication wiring where installation requirements require electrical segregation. In addition, connect shields and protective earth conductors according to the applicable system cabinet and site grounding design. This practice helps limit externally coupled switching noise within adjacent process control wiring.
The supplied data does not specify channel-to-channel isolation values, relay contact current ratings, or individual relay switching response times. Therefore, these parameters should not be assumed without the applicable Honeywell hardware documentation.
Frequently Asked Questions (FAQ)
Q: How many discrete output channels does the Honeywell MC-TDOR22 51309150-175 provide?
A: The assembly provides 16 electromechanical relay output channels.
Q: What voltage levels can the MC-TDOR22 51309150-175 switch?
A: The supplied specifications state operation up to 240 Vac or 125 Vdc. They do not specify the associated contact current rating.
Q: Can the MC-TDOR22 51309150-175 operate in a redundant configuration?
A: Yes. The supplied product information specifies redundancy support. The switching or transfer behavior and any associated delay are not specified in the provided data.
Field Installation Guidelines
Verify the complete model and part number, MC-TDOR22 51309150-175, before installation.
Isolate cabinet power and confirm the applicable control system installation procedure before connecting field wiring. Route relay output conductors according to the voltage class and separation requirements of the control cabinet.
Keep high-energy switching conductors separated from low-level analog, communication, and instrument signal wiring where the installation design requires segregation. Terminate cable shields according to the system grounding architecture and site electrical standards.
Do not exceed the specified maximum operating voltage of 240 Vac or 125 Vdc. Confirm the connected load characteristics and relay contact current requirements using the applicable Honeywell documentation before energizing the circuit.
Inspect terminal connections for correct conductor retention and verify that redundant hardware, where used, follows the approved Honeywell system configuration.
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