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1746-IB8

Allen-Bradley 1746-IB8 SLC 500 Digital Input Module 8 Channel 24V

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  • Manufacturer: Allen-Bradley

  • Product No.: 1746-IB8

  • Product Type: Digital Input Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 300g

  • Shipping port: Xiamen

  • Warranty: 12 months

Dokar Mayar da Kaya na Kwanaki 30 · Garantin Watanni 12
  • Isarwa Cikin Gaggawa
  • Tallafi na awa 24 a rana, kwana 7 a mako
  • Tabbacin Inganci

Bayani

Allen-Bradley 1746-IB8 SLC 500 Digital DC Input Module

The Allen-Bradley 1746-IB8 is an SLC 500 digital DC input module featuring 8 sinking input channels rated at 24 V DC. Operating from 10-30 V DC, this module provides reliable field signal acquisition for industrial control systems. Approved for Class 1 Division 2 hazardous locations, it draws 50 mA backplane current at 5 V DC and dissipates 1.3 W. Weighing approximately 0.3 kg (0.66 lbs), it operates from 0°C to 60°C.

Technical Specifications

Parameter Value
Manufacturer Rockwell Automation
Brand Allen-Bradley
Part Number 1746-IB8
Series SLC 500
Module Type Digital DC Input Module
Inputs 8 (Sinking)
Voltage Range 10-30 V DC
Nominal Voltage 24 V DC
Nominal Input Current 8 mA @ 24 V DC
Off-State Current 1 mA max
Off-State Voltage 5.0 V DC max
Signal Delay (ON/OFF) 8 ms
Backplane Current 50 mA @ 5 V DC
Power Dissipation 1.3 W (4.4 BTU/hr)
Dielectric Withstand 1500 V AC
Operating Temperature 0°C to 60°C (32°F to 140°F)
Humidity 5-95% non-condensing
Vibration 2.5G @ 57-500 Hz
Shock 30G
Approvals UL, CE, Class 1 Div 2
UPC 10662073521256

Model Number Breakdown

  • 1746 – SLC 500 I/O Series
  • I – Input Module
  • B – DC Voltage, Sinking Input
  • 8 – 8 Input Channels

Installation & Field Application Guide

  • Install in any available slot of the SLC 500 chassis. Ensure the power supply supports the 50 mA backplane draw.
  • Wire field devices to the 8 input terminals using appropriate gauge wire. Inputs are sinking type.
  • Verify field voltage is between 10-30 V DC. Nominal input current is 8 mA at 24 V DC.
  • For Class 1 Division 2 installations, follow hazardous area wiring practices and use approved barriers.

Why Choose the 1746-IB8

  • 8 sinking inputs provide reliable DC signal acquisition for SLC 500 systems.
  • Class 1 Division 2 approval for hazardous area installations.
  • Low backplane current (50 mA) minimizes power supply loading.
  • Proven reliability with UL, CE, and NEMA Noise Immunity certification.

Field Engineer FAQs

Q1: What is the difference between sinking and sourcing inputs on the 1746-IB8?

A1: The 1746-IB8 provides sinking inputs, meaning the input connects to the common (ground) to turn on. The input circuit sources current to the field device.

Q2: Can the 1746-IB8 be used with 24 V AC signals?

A2: No, this module is designed for DC input signals only. Use the 1746-IA8 for AC input applications.

Q3: What is the maximum cable length for field wiring to the 1746-IB8?

A3: Maximum recommended cable length is 305 meters (1000 feet) for reliable signal detection.

Inquiries: sale@etowonauto.com

Product Resources

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🏷️ Tags: Digital Input Module

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