Configured for discrete AC and DC load switching in process control platforms, the Honeywell MC-TDOR62 51309150-275 (MC-TDOR62 Digital Relay Output Module) provides direct physical/electrical execution. The module controls 8 independent electromechanical relay channels, translating 24 VDC backplane logic signals into high-level field outputs up to 240 VAC or 125 VDC.
Hardware Specifications
Parameter
Specification
Model
MC-TDOR62 / 51309150-275
Brand
Honeywell
Origin
USA
Weight
0.8 kg
Dimensions
306 x 125 x 20 mm
Operating Temp
-40 to +70 deg C
Power Consumption
2.16 W (0.09 A @ 24 VDC nominal)
System Voltage
24 to 30 VDC
Output Channels
8 Independent Relay Channels
Max Switching Rating
240 VAC / 125 VDC
Channel-to-Channel Isolation and Loop Power Dynamics
The MC-TDOR62 features channel-to-channel galvanically isolated output circuits to eliminate crosstalk and prevent electrical noise propagation across the DCS backplane. The electromechanical relay barrier physically decouples internal control electronics from high-voltage field loads. Active switching contacts maintain operational stability in environments operating alongside 4-20 mA HART loop protocol instruments, preventing inductive line surges from degrading analog signal lines.
Frequently Asked Questions
Q: Can the MC-TDOR62 switch both AC and DC field loads on adjacent channels? A: Yes. Each of the 8 channels operates as an independent relay output, allowing simultaneous switching of individual AC (up to 240 VAC) or DC (up to 125 VDC) loads.
Q: Is hot-swapping permitted for this digital output module?
A: No. System power must be isolated and field wiring de-energized prior to installing or removing the module to prevent electrical arcing and connector terminal damage.
Field Installation Guidelines
De-energize primary 24 VDC system power and external load circuits before mounting or wiring the module.
Install the 306 x 125 x 20 mm assembly onto the DIN rail or panel enclosure, verifying that all mounting clips securely engage.
Terminate AC/DC load conductors at the screw terminal block, ensuring fasteners maintain a minimum engagement of 5 full threads.
Route high-voltage AC and DC output wiring through dedicated cable channels, maintaining a 200 mm clearance from low-voltage instrument signal lines.
Connect cabinet shielding and chassis earthing points to the central instrument ground bar to safely dissipate induced noise surges.
