Allen-Bradley 1746-NT4 SLC 500 Thermocouple/mV Input Module
The Allen-Bradley 1746-NT4 provides four high-accuracy thermocouple and millivolt input channels. This module ensures precise temperature measurement for various industrial applications.
Technical Specifications
- Brand: Allen-Bradley | Rockwell Automation
- Model: 1746-NT4
- Input Channels: 4 isolated inputs
- Thermocouple Types: J, K, T, E, R, S, B, N
- mV Ranges: ±50mV, ±100mV
- Resolution: 16-bit for high accuracy
- Update Time: 26ms to 1.2 seconds
- Accuracy: ±1°C typical for thermocouples
- Filter Frequencies: 10Hz, 50Hz, 60Hz, 250Hz
- Backplane Current: 60mA @ 5V DC, 55mA @ 24V DC
- Power Consumption: 0.8W maximum
- Operating Temperature: 0°C to 60°C
- Isolation: 500V AC channel to backplane
- Wire Size: 14 AWG maximum
- Cable Impedance: 25 ohms maximum
Installation & Wiring
- Install in any slot except slot 0
- Use shielded twisted pair for thermocouples
- Belden 8761 or equivalent for mV signals
- Maximum two wires per terminal
- Ensure proper grounding for noise reduction
- Follow thermocouple polarity guidelines
Package Contents
- One 1746-NT4 thermocouple input module
- Installation and configuration guide
- Compatibility documentation
Shipping Information
- Worldwide shipping available
- Carriers: FedEx, UPS, DHL
- Secure protective packaging
- Tracking provided for all orders
Module Comparison
- Different function than 1746-NIO4I Analog Combo
- Different function than 1746-OB32E Digital Output
- The 1746-NT4 specializes in temperature measurement
Expert FAQ
- What thermocouple types does it support? Types J, K, T, E, R, S, B, and N
- Does it include cold junction compensation? Yes, built-in CJC sensors
- What mV ranges are available? ±50mV and ±100mV ranges
- How does open circuit detection work? Configurable to zero, upscale, or downscale
- What filter frequencies are available? 10Hz, 50Hz, 60Hz, and 250Hz options
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