ALLEN BRADLEY 1734-IB8 Digital Input Module

Allen-Bradley 1734-IB8 | POINT I/O Digital Input Module

High-Performance 8-Point DC Sinking Input Module for Industrial Automation

The 1734-IB8 from Rockwell Automation (Allen-Bradley) is an 8-point digital input module designed for 24V DC sinking input applications. As part of the POINT I/O series, this module is compact, flexible, and ideal for distributed control systems in industrial automation.

1. General Specifications

• Brand: Allen-Bradley (Rockwell Automation)
• Series: POINT I/O
• Part Number: 1734-IB8
• Module Type: Digital DC Sinking Input Module
• Mounting Type: 1734-TB or 1734-TBS Terminal Base

2. Electrical Specifications

• Number of Inputs: 8 (Sinking Inputs)
• Input Voltage Range: 10-28.8V DC
• Nominal Input Voltage: 24V DC
• Input Current Range: 2-5 mA
• Nominal Input Current: 4 mA @ 24V DC
• Maximum Input Current: 5 mA
• Input Filter Time: 0.5 ms hardware plus 0-63 ms (user-selectable)
• POINTBus Current Draw: 75 mA @ 5V DC
• Power Dissipation: 1.6 W
• Thermal Dissipation: 5.5 BTU/hour

3. Status Indicators & Protection

✔ Module Status Indicator: 1 Green/Red (Logic Side)
✔ Input Status Indicators: 8 Yellow LEDs (Logic Side)
✔ Reverse Polarity Protection – Prevents damage due to incorrect wiring

---

4. Physical & Mechanical Details

• Module Dimensions: 56 x 12 x 75.5 mm (2.2 x 0.47 x 2.97 inches)
• Approximate Weight: 31.8 g (1.12 oz)
• Enclosure Type Rating: Open-Style (Requires Enclosure)
• Key Switch Position: 1

5. Application Areas

✅ Programmable Logic Controllers (PLCs)
✅ Machine Automation & Control Systems
✅ Factory & Process Automation
✅ Distributed I/O Systems