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1790D-TN4C0 Allen-Bradley
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1790D-TN4C0 Allen-Bradley

$2,791.91 - $3,002.40
$2,791.91
$2,791.91 - $3,002.40
$2,791.91
Surplus - Tested (With Warranty)
Need a Specific Revision?
$2,791.91
2 in stock
New / Open-Box Surplus
Need a Specific Revision?
$3,002.40
3 in stock
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Product Details

Description · Specifications · Product Overview

Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.

Product Overview

The 1790D-TN4C0 is an analog input base block in the Allen-Bradley CompactBlock LDX family, designed for DeviceNet-based control systems. It accepts up to four single-ended current inputs (4…20 mA default, or 0…20 mA user selectable) and converts them into 12-bit digital values for processing by a DeviceNet master node. Typically used in industrial automation for analog sensor signal acquisition such as pressure, flow, or level measurement, the 1790D-TN4C0 (part number 1790D-TN4C0) is suitable for applications requiring distributed analog input in compact I/O installations.

Best Suited For

  • DeviceNet-based distributed analog input integration
  • Field conversion of 4…20 mA process signals
  • Installation in CompactBlock LDX I/O racks
  • Light-industrial environments with tight space constraints
Input channels
4 single-ended
Current input range
4…20 mA default (0…20 mA user configurable)
Resolution
12-bit
DeviceNet power range
11…28.8 V DC
Power dissipation (DeviceNet)
1.2 W max @ 28.8 V DC

Technical Specifications

I/O & Electrical

Input channels
4 single-ended, non-isolated
Input current range
4…20 mA default; 0…20 mA user configurable
Resolution
12 bits-unipolar (1/4096), max 3.90 µA/bit (4…20 mA), 4.88 µA/bit (0…20 mA)
Input impedance
249 Ω
Conversion time
10 ms per channel
Overall accuracy
0.2% Full scale @ 0…55 °C
Insulation resistance
20 MΩ min @ 250 V DC (between isolated circuits)

Communication & Power

DeviceNet supply voltage range
11…28.8 V DC
DeviceNet supply nominal voltage
24 V DC
DeviceNet power dissipation
1.2 W max @ 28.8 V DC
Field-power supply voltage range
21.6…26.4 V DC
Field-power dissipation
1.5 W max @ 26.4 V DC
Isolation
I/O to logic via photocoupler; DeviceNet to logic non-isolated; Field power non-isolated

Physical & Environmental

Indicators
4 red/green I/O status LEDs
Wiring type
Terminal block (M3.0), torque 7 lb-in max
Weight
0.38 lbs (0.17 kg)
Operating temperature
0 °C to 55 °C
Installation altitude
up to 1000 m

Certifications

Korean KCAustralian RCMCEUL ListedUL Listed Hazardous

Certified to Korean KC, Australian RCM, CE, UL Listed, UL Listed Hazardous as of April 29, 2026 (verify label on your specific unit).

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Rockwell Automation documentation

Access official manuals, datasheets, and lifecycle information for this part directly from Rockwell Automation.

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Must Read: Disclaimer

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