Technical Specifications

• Part Number: 51304427-250 (51304427250)

• Module Type: MC-TDOR62 (Digital Output Relay FTA)

• Channel Configuration: 16 × SPDT (Form C) relay outputs, independent

• Contact Rating: 240 VAC / 125 VDC, 5 A resistive per channel

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

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

• Power Supply: 24 VDC ±10%, 1.0 A (backplane‑powered)

• Fuse: 6 A SB (system board fuse, replaceable)

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

• Storage Temperature: -40°C to +85°C

• Humidity: 5%–95% RH, non‑condensing

• Dimensions (H×W×D): 307 × 120 × 50 mm (12‑inch size B)

• Weight: ~2.1 kg

• Certifications: CE, UL, RoHS (-200 non‑certified)

• Coating: Conformal coated (dust/moisture/corrosion protection)

• Terminals: Compression‑type screw terminals (14–22 AWG)

• Status Indicators: 16 channel LEDs + Power/Fault LEDs

• Response Time: ≤10 ms per relay

Interface & Communication Configuration

• DCS Interface: UCN backplane edge connector (1 Mbps, TDC3000/TPS compatible)

• Field Interface: Screw terminals (16 channels: Common + NC + NO)

• Redundancy: Non‑redundant (no dual‑controller input support)

• Diagnostics: On‑board self‑diagnostics with fault reporting via UCN

• Wiring: Accepts 14–22 AWG stranded copper wire

Core Functions

1. Relay Output Switching: 16 independent SPDT relays for on/off control of field loads (valves, pumps, solenoids).

2. Field Termination: Centralizes digital output wiring from DCS IOPs to field devices.

3. Electrical Isolation: Protects DCS from field‑side voltage spikes, noise, ground loops.

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

5. Compliant & Harsh‑Ready: Conformal coating + CE/UL for reliable operation in damp/dusty areas.

Application Scenarios

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

• Field Device Control: Valves, pumps, fans, motors, solenoids (≤5 A).

• Alarm Systems: Audible/visual alarm drivers for process events.

• Interlock Circuits: Non‑safety interlocks (non‑SIL rated).

• Harsh/Compliant Environments: Outdoor, high‑humidity, or CE/UL‑required installations.

Key Differences: 51304427-250 vs -100/-150/-200

Compatibility Note