1. General Information

• Part Number: 51304638125 (51304638‑125)

• Manufacturer: Honeywell

• Product Type: Analog Output Galvanic Isolator (MU‑GAOX02)

• Applicable System: Honeywell TDC3000 / DCS / PLC systems

• Status: Discontinued (obsolete, spare parts only)

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

• Weight: Approx. 280 g (0.62 lbs)

• Dimensions: ~120 × 80 × 45 mm

2. Features & Functions

• 4‑20 mA Analog Output Isolation: Eliminates ground loops, protects sensitive I/O

• 1‑Channel High‑Accuracy Isolation: Single‑channel, fully isolated

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

• Precision Signal Transmission: ±0.1% full‑scale accuracy

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

• Industrial Grade: -20°C to +70°C, EMI/RFI protected

• Hot‑Swappable: Online replacement without system shutdown

3. Technical Specifications

3.1 Electrical

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

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

• Accuracy: ±0.1% FS (25°C)

• Isolation: 1500 V AC rms (1 minute)

• Power Supply: 24 VDC ±10%

• Power Consumption: ≤5 W

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: DIN rail (35 mm)

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

4. Applications

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

• Industries: Petrochemical, power, water treatment, metallurgy

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