Technical Specifications

• Part Number: 51304423-100 (51304423100)

• Module Type: MU-TDOD12 (Digital Output, 12‑Channel)

• Relay Configuration: 12 × SPDT (Single‑Pole Double‑Throw) relays

• Contact Rating: 120/240 VAC, 5 A resistive; 30 VDC, 5 A

• Isolation: 1500 VAC rms channel‑to‑backplane isolation

• Input Logic: 24 VDC from UCN controller (HPM/APM)

• Power Supply: 24 VDC ±10%, 0.8 A (backplane‑powered)

• Operating Temperature: -20°C to +60°C

• Storage Temperature: -40°C to +85°C

• Humidity: 5%–95% RH, non‑condensing

• Dimensions (H×W×D): 270 × 185 × 95 mm

• Weight: ~2.4 kg

• Certifications: CE, UL, RoHS

• Status Indicators: LED per channel (ON/OFF) + Power/Fault LEDs

Interface & Communication Configuration

• DCS Interface: UCN backplane (1 Mbps) via edge connector

• Field Interface: Screw terminals (12 channels, common + NC + NO)

• Redundancy: Supports redundant HPM/APM controller inputs

• Diagnostics: On‑board self‑diagnostics with fault reporting to DCS

Core Functions

1. Isolated Relay Outputs: 12 independent SPDT relays for direct field control.

2. High‑Power Switching: Drives AC/DC loads up to 5 A (valves, motors, solenoids).

3. Electrical Isolation: Protects DCS from field‑side voltage spikes and noise.

4. Status Monitoring: Per‑channel LEDs for quick visual verification of output state.

5. Rack Integration: Standard TDC3000 rack‑mount design for easy installation.

Application Scenarios

• Process Industries: Chemical, petrochemical, oil & gas, power generation, pulp & paper.

• Field Device Control: On/off control of valves, pumps, fans, motors, and solenoids.

• Alarm Systems: Driving audible/visual alarms for process events.

• Interlock & ESD: Safety interlocks and emergency shutdown circuits.

Key Difference vs. 51304421-100/200

• 51304423-100 (MU-TDOD12): 12‑channel relay module (standalone, rack‑mount), higher density than PLCG panels.

• 51304421-100/200: PLCG relay panel/card (fewer channels, panel‑mount).