1746-NO4I | Allen-Bradley SLC 500 Analog Current Output Module, 4-Ch, Non-isolated
1746-NO4I | Allen-Bradley SLC 500 Analog Current Output Module, 4-Ch, Non-isolated
1746-NO4I | Allen-Bradley SLC 500 Analog Current Output Module, 4-Ch, Non-isolated
    1746-NO4I | Allen-Bradley SLC 500 Analog Current Output Module, 4-Ch, Non-isolated
1746-NO4I | Allen-Bradley SLC 500 Analog Current Output Module, 4-Ch, Non-isolated

1746-NO4I | Allen-Bradley SLC 500 Analog Current Output Module, 4-Ch, Non-isolated

Part #: 1746-NO4I Manufactured by: Allen-Bradley
Regular price
$472.00
Sale price
$472.00
Regular price
9 in Stock
Condition: New – Open box
Shipping calculated at checkout.
Product Overview
The Allen-Bradley 1746-NO4I is an SLC 500 Analog Output Module. This Analog Output Module has 4 Outputs and a backplane cu...  Read more
We accept:
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa
Contact Us!

Talk to a real expert.

Mon–Sat, 7:00 AM – 12:00 PM (EST)
warranty
IQElectro 2-Year Warranty
Warranty for Product #: 1746-NO4I
IQElectro offers a free 2-year warranty on all products. You can trust that every purchase is a reliable investment in the future of your company. Warranty Terms
2-3 Day Free Shipping
Packed Ready to Ship
24/7 Expert Support
Return within 30-Days
IQElectro is Not an authorized distributor for Allen-Bradley
Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: 1746-NO4I

Description / Specifications

Description 

The Allen-Bradley 1746-NO4I is a 4-channel analog output module designed for the SLC 500 control platform. It provides current-loop output signals for controlling industrial devices such as valves, drives, actuators, and instrumentation requiring 0–20 mA signals. This module is widely used in process control, machine automation, and applications requiring precise analog output regulation.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Analog Output Modules
Part Number 1746-NO4I
Subcategory SLC 500 Analog Output Module
Type 4-channel analog output
Series / Platform SLC 500
Number of Channels 4 outputs
Output Signal 0–20 mA current
Connection Type Screw terminals
Output Isolation Optical coupling + reinforced dielectric isolation
Mounting Type SLC chassis-based
Display Type Module status indicators
Operating Temperature 0–60 °C (32–140 °F)
Environmental Specs 5–95% RH non-condensing; industrial vibration & shock compliant
Certifications CCC, CE, GOST, KC, Marine
Application Analog control for valves, transducers, drives, actuators

 

 

Information About 1746-NO4I

The 1746-NO4I is part of the SLC 500 I/O family and installs directly into any standard SLC chassis, providing four isolated current outputs. Each channel delivers a 0–20 mA signal, making it suitable for a broad range of analog-controlled equipment. The module incorporates optical isolation and advanced filtering circuitry to reduce electrical noise and ensure stable signal integrity. It supports standard SLC 500 environmental ratings, including 0–60 °C operation, industrial vibration tolerance, and high dielectric withstand levels. The 1746-NO4I uses screw-terminal connections and integrates with SLC processors or communication adapters across multi-chassis systems. Designed to meet global industrial certifications, it provides reliable performance in process, manufacturing, and safety-related control environments.

Key Features:

  • Four Analog Outputs: Provides four independent 0–20 mA current-loop channels for precise analog control.
  • Noise-Reduction Design: Optical coupling and filtering circuits enhance signal stability and minimize electrical interference.
  • Wide System Compatibility: Installs in any SLC 500 chassis and works with up to three interconnected chassis.
  • Industrial Durability: Rated for 0–60 °C operation with robust vibration, shock, and environmental compliance.
  • Secure Wiring: Screw-type terminal connections ensure reliable field wiring and easy maintenance.
  • High Isolation: Reinforced dielectric protection between module circuits and the SLC backplane.
  • Status Indication: Onboard status display aids diagnostics and operating condition monitoring.
  • Certified Performance: Meets global standards for industrial automation, including CE, GOST, KC, and Marine approvals.

The 1746-NO4I delivers dependable and accurate analog output performance for SLC-based industrial control systems.

Frequently Asked Questions about 1746-NO4I
Question: What is the main function of the 1746-NO4I module?
Date Update:11/06/2025
Answer:

The 1746-NO4I is a four-channel analog output module used in Allen-Bradley's SLC 500 PLC platform. It outputs current signals from 0 to 20 mA, suitable for controlling modulating devices such as valves and actuators. It’s commonly used to transmit control outputs from PID loops or manual setpoints to field devices. The module is ideal for process control systems requiring precise analog signal generation. It offers accurate and stable current outputs for industrial automation tasks.

Question: Does the module offer isolation and protection?
Date Update:11/06/2025
Answer:

Yes, it offers backplane isolation rated at 500V DC for signal integrity and protection. The overrange capability (up to 21 mA) and load reactance limit of 100 µH enhance output stability. The module is factory-calibrated, reducing the need for user-side calibration. Output circuits are protected against overload within the specified load range. Proper wiring practices further ensure safe operation.

Question: How accurate is the 1746-NO4I under changing conditions?
Date Update:11/06/2025
Answer:

The module has an accuracy drift of only ±70 ppm/°C over full-scale range. This ensures stable output in varying thermal environments. The resolution and calibration remain reliable over long periods. Such stability is essential for applications like level control or analog monitoring. The module's design ensures repeatable and consistent signal generation.

Question: What is the output current range of the 1746-NO4I?
Date Update:11/06/2025
Answer:

This module delivers an analog output in the range of 0 to +20 mA, with overrange capability up to 21 mA. The resolution of the output is 14 bits, enabling fine control of output levels. It supports a full-scale output of 21 mA to accommodate applications needing slight signal overdrive. The module also features a load resistance range of 0 to 500 ohms. Overrange detection helps in fault diagnostics and system calibration.

Question: Is the 1746-NO4I still in production?
Date Update:11/06/2025
Answer:

Yes, as of now, the 1746-NO4I remains an active product in Rockwell Automation’s catalog for legacy SLC 500 systems. While newer platforms like CompactLogix or ControlLogix are now preferred for new designs, this module is still available for system expansions and replacements. It continues to receive technical support and documentation. Many facilities rely on its continued availability for maintaining existing installations. Transition plans are often built around its compatibility.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 1746-NO4I is a 4-channel analog output module designed for the SLC 500 control platform. It provides current-loop output signals for controlling industrial devices such as valves, drives, actuators, and instrumentation requiring 0–20 mA signals. This module is widely used in process control, machine automation, and applications requiring precise analog output regulation.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Analog Output Modules
Part Number 1746-NO4I
Subcategory SLC 500 Analog Output Module
Type 4-channel analog output
Series / Platform SLC 500
Number of Channels 4 outputs
Output Signal 0–20 mA current
Connection Type Screw terminals
Output Isolation Optical coupling + reinforced dielectric isolation
Mounting Type SLC chassis-based
Display Type Module status indicators
Operating Temperature 0–60 °C (32–140 °F)
Environmental Specs 5–95% RH non-condensing; industrial vibration & shock compliant
Certifications CCC, CE, GOST, KC, Marine
Application Analog control for valves, transducers, drives, actuators

 

 

Information About 1746-NO4I

The 1746-NO4I is part of the SLC 500 I/O family and installs directly into any standard SLC chassis, providing four isolated current outputs. Each channel delivers a 0–20 mA signal, making it suitable for a broad range of analog-controlled equipment. The module incorporates optical isolation and advanced filtering circuitry to reduce electrical noise and ensure stable signal integrity. It supports standard SLC 500 environmental ratings, including 0–60 °C operation, industrial vibration tolerance, and high dielectric withstand levels. The 1746-NO4I uses screw-terminal connections and integrates with SLC processors or communication adapters across multi-chassis systems. Designed to meet global industrial certifications, it provides reliable performance in process, manufacturing, and safety-related control environments.

Key Features:

  • Four Analog Outputs: Provides four independent 0–20 mA current-loop channels for precise analog control.
  • Noise-Reduction Design: Optical coupling and filtering circuits enhance signal stability and minimize electrical interference.
  • Wide System Compatibility: Installs in any SLC 500 chassis and works with up to three interconnected chassis.
  • Industrial Durability: Rated for 0–60 °C operation with robust vibration, shock, and environmental compliance.
  • Secure Wiring: Screw-type terminal connections ensure reliable field wiring and easy maintenance.
  • High Isolation: Reinforced dielectric protection between module circuits and the SLC backplane.
  • Status Indication: Onboard status display aids diagnostics and operating condition monitoring.
  • Certified Performance: Meets global standards for industrial automation, including CE, GOST, KC, and Marine approvals.

The 1746-NO4I delivers dependable and accurate analog output performance for SLC-based industrial control systems.

Check Out These Related Products