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Allen-Bradley 1746-NO4I
by Allen-Bradley
Read verified buyer reviews ↓OverviewThe Allen-Bradley 1746-NO4I is a high-performance 4-point digital output module engineered for seamless integration with the widely used SLC 500 series programmable controllers. This component provides precise control over various industrial processes by transmitting digital output signals to connected devices like motors, relays, and alarms. The 1746-NO4I improves operational efficiency and control across many automation applications. Designed for demanding industrial environments, this module delivers reliable and consistent performance, making it a valuable asset for contemporary manufacturing and process control systems. Its compatibility with the SLC 500 series ensures straightforward integration into existing infrastructures, offering an efficient solution for upgrading automation capabilities. This module combines advanced functionality with robust construction to achieve elevated levels of automation and control.Key Features 4-Point Digital Output: Offers flexible control for various connected devices, including motors, relays, and alarms, essential for diverse automation tasks. Seamless SLC 500 Series Compatibility: Ensures easy and efficient integration into current Allen-Bradley SLC 500 PLC systems, simplifying upgrades and expansions. Real-Time LED Status Indicators: Each output point includes an LED indicator, providing immediate visual confirmation of operational status for enhanced monitoring and troubleshooting. Optimized 24V DC Output: Provides a stable and dependable 24V DC output, perfect for controlling sensitive industrial devices requiring consistent voltage levels. Rugged Industrial Design: Built for lasting performance in harsh industrial settings, ensuring durability and consistent operation in challenging conditions. High Output Current Capability: Supports 2 Amps per point, enabling reliable control of a broad spectrum of industrial equipment without compromising performance. Compact & Panel-Mountable: Designed for efficient space utilization with a compact form factor and easy panel mounting, simplifying installation within control cabinets. Technical Specifications Module Type: 4-Point Digital Output Compatibility: SLC 500 Series PLCs Output Voltage: 24V DC (Nominal) Output Current Rating: 2 Amps per point Module Dimensions: 2.25" H x 4.5" W x 6" D (57 x 114 x 152 mm) Weight: 0.5 lbs (0.23 kg) Operating Temperature Range: 0 to 60°C (32 to 140°F) Storage Temperature Range: -40 to 85°C (-40 to 185°F) Mounting: Panel mount Part Number: 1746-NO4I Status Indicators: LED indicators for each output point Applications Advanced Manufacturing Control: Manages and monitors machinery, actuators, and systems that require reliable digital output signals in high-production settings. Robust Process Automation: Essential for sophisticated process control systems, ensuring accurate and consistent operation of automated sequences and equipment. Integrated Alarm & Safety Systems: Facilitates the control of emergency alarm systems, safety relays, and other critical safety devices within automated manufacturing and processing. Comprehensive Industrial Automation: Suited for controlling digital signals across a wide range of industrial automation systems that demand steadfast output functionality. Efficient Control Panels: Easily integrates into new or existing control panel infrastructures, significantly enhancing the command and operational efficiency of automation equipment. Building Management Systems: Can be used for controlling various building automation elements dependent on digital outputs, such as lighting, HVAC, and access control. Why ChooseThis module offers unwavering reliability for industrial automation. Its design and features ensure consistent performance in demanding environments.Order NowReady to enhance your industrial control system? Purchase the Allen-Bradley 1746-NO4I digital output module today and experience superior performance and integration for your SLC 500 series PLC.FAQWhat types of devices can the 1746-NO4I control?It can control a variety of devices, including motors, relays, and alarms, essential for diverse automation tasks.Is this module compatible with older SLC 500 PLC systems?Yes, the 1746-NO4I is specifically designed for seamless integration with existing Allen-Bradley SLC 500 series PLC systems.What is the output current capacity of each point?Each output point supports a maximum current of 2 Amps, allowing for reliable control of a broad range of industrial equipment.How does the 1746-NO4I simplify troubleshooting?Each output point is equipped with an LED indicator, providing immediate visual confirmation of operational status, which aids in quick monitoring and troubleshooting.
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Allen-Bradley 1746-NO4I
Overview
This is a genuine Allen-Bradley component from the SLC 500 Platform (Legacy) family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.
Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.
Key Features
- Genuine Allen-Bradley catalog part
- Tested before shipment
- Backed by PalmPartsSolution warranty
- Cross-reference and revision assistance available
- Compatible with the broader Allen-Bradley automation ecosystem
- Engineered to integrate inside SLC 500 Platform (Legacy) installations
Compatibility
When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:
- Input/output voltage and current rating
- Communication protocol and network role
- Mounting form factor and footprint
- Operating temperature, humidity, and IP rating
- Required certifications (UL, CE, ATEX, marine, etc.)
Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.
Replacement Information
Three ways to source this part through PalmPartsSolution:
- Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- Engineered migration — current-generation Allen-Bradley platform with documented conversion notes for the SLC 500 Platform (Legacy) family
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Module Type: 4-Point Digital Output
- Compatibility: SLC 500 Series PLCs
- Output Voltage: 24V DC (Nominal)
- Output Current Rating: 2 Amps per point
- Module Dimensions: 2.25" H x 4.5" W x 6" D (57 x 114 x 152 mm)
- Weight: 0.5 lbs (0.23 kg)
- Operating Temperature Range: 0 to 60°C (32 to 140°F)
- Storage Temperature Range: -40 to 85°C (-40 to 185°F)
- Mounting: Panel mount
- Part Number: 1746-NO4I
- Status Indicators: LED indicators for each output point
Applications
- Advanced Manufacturing Control: Manages and monitors machinery, actuators, and systems that require reliable digital output signals in high-production settings.
- Robust Process Automation: Essential for sophisticated process control systems, ensuring accurate and consistent operation of automated sequences and equipment.
- Integrated Alarm & Safety Systems: Facilitates the control of emergency alarm systems, safety relays, and other critical safety devices within automated manufacturing and processing.
- Comprehensive Industrial Automation: Suited for controlling digital signals across a wide range of industrial automation systems that demand steadfast output functionality.
- Efficient Control Panels: Easily integrates into new or existing control panel infrastructures, significantly enhancing the command and operational efficiency of automation equipment.
- Building Management Systems: Can be used for controlling various building automation elements dependent on digital outputs, such as lighting, HVAC, and access control.
Why Choose the 1746-NO4I?
This module offers unwavering reliability for industrial automation. Its design and features ensure consistent performance in demanding environments.
Availability & Shipping
- ▸In stock: 1746-NO4I ready for immediate dispatch from our Florida warehouse.
- ▸Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
- ▸Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
- ▸Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
- ▸Buy with confidence: Every 1746-NO4I ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Allen-Bradley
Machine down? We ship parts the same day.
New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.
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Independent Supplier Notice
PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.
Product Condition & Firmware
All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.