1734-IB8?

Overview of Allen Bradley 1734-IB8

The Allen Bradley 1734-IB8 is an 8-point digital input module designed for the POINT I/O system, providing reliable and precise input control for industrial automation applications. This module supports 24V DC sinking inputs and is widely used in control systems requiring efficient and compact input solutions. It integrates seamlessly with wiring base assemblies such as the 1734-TB and 1734-TBS, ensuring flexible installation options. The 1734-IB8 is built to operate within a temperature range of -20 to 55 °C and comes with multiple industry certifications including IECEx and UKEX, making it suitable for global industrial environments. Its compact size and efficient power consumption make it a preferred choice for system integrators and engineers focused on scalable automation solutions.

Key Features of Allen Bradley 1734-IB8

• Provides 8 discrete digital sinking input points for comprehensive monitoring.
• Operates at 24V DC nominal voltage with inputs rated from 10V to 28.8V DC.
• Compatible with multiple wiring base assemblies including 1734-TB and 1734-TBS.
• Low power dissipation of 1.6 W at 28.8V DC, optimizing energy efficiency.
• Input current minimum of 2 mA and nominal 4 mA supports multiple device types.
• Clear indication through yellow LED input status lights and green/red logic side indicators.
• Compact dimensions: approximately 12 mm wide, ideal for space-constrained panels.
• Certified for international standards including IECEx, UKEX, CCC, and more.
• Continuous voltage withstand rating of 50V and tested to 2500V DC surge tolerance.

Technical Specs of 1734-IB8

Specification	Details
Input Points	8 (sinking)
Input Voltage Range	10V DC min, 24V DC nominal, 28.8V DC max
Input Current (On-State)	2 mA min, 4 mA nominal, 5 mA max @ 24V DC
Power Dissipation	1.6 W max @ 28.8V DC
Operating Temperature	-20 to 55 °C (-4 to 131 °F)
Input Impedance	3.6 kΩ nominal, 4.7 kΩ max
Module Width	12 mm
Electrical Isolation	50V continuous withstanding, 2500V DC tested

Applications / Use Case

The Allen Bradley 1734-IB8 is ideal for industrial control system applications requiring precise input monitoring and data acquisition. It’s commonly used in manufacturing automation, material handling, and process control environments. Its 8-point sinking input configuration allows it to interface effectively with sensors, push buttons, and discrete signals essential for real-time operational decisions. Due to its compact size and flexible mounting options, it is particularly suited for cabinet installations where space is limited. The module ensures reliable signal transmission in both standard and hazardous environments, supported by its certifications. This input module supports modular system designs that can be expanded as production demands grow, making it an efficient choice for scalable automation projects.

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