Automation parts, worldwide supply
0
1 3

1746-IO4

Allen-Bradley 1746-IO4 SLC 500 Combination Module | 120VAC

In stock (11 units), ready to be shipped

  • Manufacturer: Allen-Bradley

  • Product No.: 1746-IO4

  • Product Type: Combination Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 250g

  • Shipping port: Xiamen

  • Warranty: 12 months

30-Day Return Policy · 12-Month Warranty
  • Fast Delivery
  • 24/7 Support
  • Quality Assurance

Description

Allen-Bradley 1746-IO4 SLC 500 AC Digital Combination Module

The Allen-Bradley 1746-IO4 is a compact combination digital I/O module designed for the SLC 500 rack-based PLC architecture. Weighing approximately 0.25 kg (0.55 lbs), this module features 2 digital AC inputs and 2 relay contact outputs arranged in a single common group, offering an space-efficient solution for small-scale 120V AC automation and device control.

Key System & Operational Features

Operating within a voltage range of 85 to 132V AC (47–63 Hz) for inputs, the 1746-IO4 dissipates just 0.27 Watts per input channel during operation. Its relay contact outputs handle a continuous current of up to 4A, supporting switching capacities of 1.5A at 120V AC and 1.2A at 24V DC. Front-panel status LEDs provide immediate channel diagnostics, while low backplane current consumption (30 mA @ 5V DC / 25 mA @ 24V DC) ensures optimal power rack budgeting.

Technical Specifications

Manufacturer & Series Rockwell Automation | Allen-Bradley SLC 500
Part / Catalog Number 1746-IO4
Module Configuration Combination Digital Module (2 Inputs / 2 Relay Outputs)
Input Operating Voltage 85…132V AC @ 47…63 Hz
Output Voltage & Continuous Current 5…265V AC / 5…125V DC | 4A Continuous Max
Signal Delay Time 35…45 milliseconds
Backplane Power Consumption 30 mA @ 5V DC | 25 mA @ 24V DC
Operating Temperature & Weight -25 °C to +60 °C (-13 °F to +140 °F) | Approx. 0.25 kg

Installation & Handling Guidelines

  • Rack Slot Installation: Insert the module into any available slot of an SLC 500 chassis (except slot 0, reserved for CPU) until the top and bottom retaining levers click into place.
  • Terminal Block Wiring: Terminal screws feature self-lifting pressure plates designed to accept up to two 14 AWG (2.0 mm²) copper conductors per terminal.
  • Cable Separation: Route incoming AC main power feeds separately from low-voltage field sensor cabling to avoid EMI noise coupling.

Frequently Asked Questions

Q1: What is the channel capacity of the Allen-Bradley 1746-IO4 module?
A1: The module provides 2 digital AC inputs and 2 relay contact outputs grouped in single commons.

Q2: What is the operating voltage range for the input channels?
A2: The inputs accept a standard operating range of 85V to 132V AC at frequencies between 47Hz and 63Hz.

Q3: How much backplane current does the 1746-IO4 consume?
A3: It draws 30 mA (0.030 A) from the 5V DC backplane bus and 25 mA (0.025 A) from the 24V DC bus.

Product Resources

📄 Download PDF
🏷️ Tags: Output Module

Scalar (V/f)

Vector

AC-powered
  • Confirm the exact model, part number, and specifications before ordering.
  • Ensure compatibility with your current machinery or control systems.
  • Reach out via sale@etowonauto.com or +8617859788089 for technical assistance.
  • Review delivery options, lead times, and shipping requirements.
  • Follow manufacturer instructions and best practices during installation.

In-stock items are typically dispatched the same business day. For products not currently in stock, dispatch times may vary based on availability. International shipping is available, and shipping costs are calculated according to destination, weight, and carrier selection.

Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.

For more details, please review our Shipping & Return Policy.

 View Product Details

ENSURE RELIABLE MACHINERY PERFORMANCE

Transform your home with the latest multi-electronics solutions, from intelligent lighting to vOptimize your operations with the Bently Nevada 3500 Monitoring System, offering real-time vibration and machinery condition monitoring to prevent failures and maximize uptime.oice-controlled devices all designed to make life easier, safer, and more connected.

Purchase now
Step-by-step technical advice and buying tips for industrial automation parts.

Technical & Buying Guide

View all blog