Honeywell 51304421-200 (PLCG Relay Panel Card)
Description
Technical Specifications
Part Number: 51304421-200 (51304421200)
Board Type: PLCG Relay Panel Card (PWA)
Relay Configuration: Multiple DPDT relays (factory‑wired)
Contact Rating: 120/240 VAC, 10 A resistive; 24 VDC, 5 A
Input Logic: 24 VDC from DCS IOPs (e.g., 51304386 series)
Isolation: Optical isolation between DCS and relay circuits
Power Supply: 24 VDC ±10% (external or backplane)
Operating Temperature: -20°C to +60°C
Storage Temperature: -40°C to +85°C
Humidity: 5%–95% RH, non‑condensing
Dimensions (H×W×D): 305 × 125 × 30 mm (card‑mount)
Weight: ~0.32 kg
Certifications: CE, UL, RoHS
Interface & Communication Configuration
DCS Interface: UCN backplane via ribbon cable (1 Mbps)
Field Interface: Screw terminals for valves, motors, solenoids
Diagnostics: On‑board LEDs (PWR/RELAY/FAULT)
Redundancy: Supports redundant controller inputs
Core Functions
Signal Conversion: Converts 24 VDC DCS logic to high‑power relay outputs.
Load Driving: Controls AC/DC loads up to 10 A (valves, pumps, fans).
Electrical Isolation: Protects DCS from field‑side voltage/current transients.
Panel Integration: Designed for standard Honeywell PLCG relay enclosures.
Fault Monitoring: LED indicators simplify troubleshooting.
Application Scenarios
Process Industries: Chemical, petrochemical, oil & gas, power, pulp & paper.
Field Device Control: On/off control of valves, motors, and solenoids.
Alarm & Interlock: Audible/visual alarms and safety interlock circuits.
Key Difference vs. 51304421-100
51304421-100: Complete relay panel (enclosure + card), 19” rack‑mount.
51304421-200: Replacement relay card only (PWA), for panel repair/upgrade.
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