239-RTD-AN GE DCS Analog Input Module

• Brand
  GE
• Model
  239-RTD-AN
• Product Name
  239 Series RTD Analog Input Thermal Protection Expansion Module
• Country of Origin
  United States
• HS Code
  8538909190
• Dimensions
  100mm W× 125mm H× 60mm D
• Weight
  0.5kg / 1.1 lbs
• Operating Temperature
  -10°C ~ +60°C
• Storage Temperature
  -40°C ~ +70°C
• Power Supply
  24 vdc
• Warranty
  12 month
• Product Status
  New and original

GE 239-RTD-AN Multilin Motor Thermal Protection RTD Module Technical Specification

Electrical Technical Specifications

Input Power Voltage & Working Current

Control Power Supply Range: 90VAC ~ 300VAC / 90VDC ~ 300VDC, 50/60Hz universal industrial frequency

Typical Operating Current: 110mA; Maximum peak current ≤160mA

Total Power Consumption: Less than 2W, energy-saving low-power design

Internal Fuse Specification: 5×20mm cartridge fuse, 250V, 2.5A for internal circuit overcurrent protection

RTD Temperature Measurement Performance

Supported RTD Sensor Types: Pt100, Pt1000, Ni120, Copper 10Ω; each channel can be programmed separately

Temperature Measuring Range: -200°C ~ +850°C (varies by RTD model)

Measurement Precision: ±0.1°C high detection accuracy

Lead Compensation: Automatic compensation for 3-wire RTD cable resistance, eliminating wiring resistance error

Channel Isolation Strength: 500VDC galvanic isolation between channels and channel-to-ground, avoiding signal cross-interference

GE 239-RTD-AN Core Product Advantages

1. Professional motor thermal protection positioning, independently calculates motor thermal capacity usage, realizes accurate overheat trip protection, effectively prolongs motor service life

2. Multi-channel independent configuration, each RTD input channel can set different sensor types, alarm temperature and trip temperature flexibly

3. Built-in real-time fault diagnosis function: automatic detection of RTD open circuit, short circuit, sensor disconnection, and output fault alarm signal

4. Complete EMC electromagnetic compatibility design, stable operation under strong interference on-site of power plant and chemical industry

5. Reserved isolated 4~20mA analog output port, can convert temperature data into standard industrial analog signal for secondary instrument display

6. RS485 Modbus RTU communication interface, remote parameter configuration, temperature data remote uploading, convenient centralized monitoring

7. Front panel LED indicator lights: RUN running status, FAULT fault alarm, COMM communication status, fast field troubleshooting

8. Matched with official 239PC upper computer configuration software, one-click parameter setting, temperature curve recording and fault data export

GE 239-RTD-AN Standard Wiring Instruction

1. Main Control Power Wiring Terminals

Terminals L, N: Access AC/DC control power supply within 90~300V range; PE terminal must connect cabinet protective earth wire for safety grounding.

2. RTD Temperature Sensor Wiring (3-Wire Standard Connection)

Each temperature detection channel corresponds three terminals:

Terminal A: RTD sensor positive main line

Terminal B & C: Two compensation lead wires for resistance compensation

Strictly follow three-wire wiring sequence to ensure lead resistance automatic compensation function works normally; sensor cable adopts shielded twisted wire, shielding layer single end grounding.

3. Relay Trip & Alarm Dry Contact Wiring

Trip Output Contact: Normally open/ normally closed programmable contacts, series connected to motor contactor control loop, execute power-off trip action during overheating fault

Alarm Output Contact: Passive dry contact, connected to on-site audible and visual alarm device for overtemperature pre-warning signal

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