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SKU:1746-IO4
Allen-Bradley 1746-IO4 SLC 500 Combination Module | 120VAC
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
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Tavsif
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.
Qo'shimcha Texnik Tavsiflar
Skalyar (V/f)
Vektor
AC quvvatli
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