51304638375
May 22, 2026

51304638375

Part Number: 51304638375 (51304638‑375) Manufacturer: Honeywell Product Type: 4‑20 mA Analog Output Galvanic Isolator, 1‑Channel Applicable Systems: TDC3000, TPS, Experion PKS, PLC/DCS Status: Discontinued (obsolete, spare parts only) Form Factor: DIN‑rail mount, compact industrial module Weight: Approx. 300 g Dimensions: ~120 × 80 × 45 mm

Description

1. General Information

  • Part Number: 51304638375 (51304638‑375)

  • Manufacturer: Honeywell

  • Product Type: 4‑20 mA Analog Output Galvanic Isolator, 1‑Channel

  • Applicable Systems: TDC3000, TPS, Experion PKS, PLC/DCS

  • Status: Discontinued (obsolete, spare parts only)

  • Form Factor: DIN‑rail mount, compact industrial module

  • Weight: Approx. 300 g

  • Dimensions: ~120 × 80 × 45 mm


2. Features & Functions

  • 1‑Channel 4‑20 mA Isolation: Breaks ground loops; protects I/O from common‑mode noise

  • High Isolation Voltage: 1500 V AC rms (channel‑to‑power/ground, 1 minute)

  • High Accuracy: ±0.1% full‑scale (25°C); ±0.2% FS (‑20°C to +70°C)

  • Low Drift & Stability: Solid‑state design for long‑term reliability

  • LED Status Indicators: Power, Run, Fault for fast diagnostics

  • Hot‑Swappable: Online replacement without system shutdown

  • Conformal Coating: Withstands moisture, dust, chemicals in harsh environments

  • Certifications: CE, UL508, CSA compliant


3. Technical Specifications

3.1 Electrical

  • Input Signal: 4‑20 mA DC (from DCS/PLC analog output)

  • Output Signal: 4‑20 mA DC (isolated, to field devices)

  • Accuracy: ±0.1% FS @ 25°C; ±0.2% FS @ ‑20°C to +70°C

  • Isolation: 1500 V AC rms (1 minute)

  • Power Supply: 24 VDC ±10%

  • Power Consumption: ≤5 W

  • Load Capacity: 0–600 Ω (4‑20 mA loop)

  • Response Time: <10 ms

3.2 Environmental

  • Operating Temperature: ‑20°C to +70°C

  • Storage Temperature: ‑40°C to +85°C

  • Relative Humidity: 5%–95%, non‑condensing

  • Protection Class: IP20 (front)

3.3 Mechanical

  • Mounting: 35 mm DIN rail

  • Wiring: Screw terminals (system side + field side)


4. Applications

  • System Role: Isolation of 4‑20 mA analog output signals in DCS/PLC

  • Industries: Petrochemical, power generation, water treatment, metallurgy

  • Field Devices: Control valves, actuators, positioners, VFDs, analog indicators


5. Compatibility & Accessories

  • Compatible With: Honeywell TDC3000, TPS, Experion C300, third‑party PLCs

  • Accessories: 24 VDC power supply, DIN rail, shielded twisted‑pair cable


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