Allen-Bradley 1738-IB8M8

Overview

The Allen-Bradley 1738-IB8M8 is a robust 8-point digital input module from the advanced ArmorPoint I/O system, engineered for seamless integration into demanding industrial applications. Designed specifically for 24V DC sinking (NPN) inputs, this module stands out with its compact form factor and exceptional durability. Each of its eight channels is terminated with a dedicated 3-pin M8 Pico-style quick-disconnect connector, allowing for simplified, high-density wiring solutions. Its superior IP67 rating ensures reliable performance in the harshest industrial conditions, making it perfectly suited for on-machine mounting where space is at a premium and environmental resilience is critical.

Key Features

• 8-Point Digital Sinking Inputs: Facilitates connection with NPN type sensors and devices.
• 24V DC Nominal Voltage: Standardized voltage for widespread industrial compatibility.
• Individual M8 Pico Connectors: Each input features a 3-pin M8 quick-disconnect for efficient, error-free wiring and easy replacement.
• IP67 Environmental Rating: Ensures protection against dust, water immersion, and washdown scenarios, enabling direct machine mounting.
• Wide Operating Voltage Range (10-28.8V DC): Provides flexibility and stability in varying power conditions.
• Configurable Input Delay Time: Offers precision control with adjustable ON to OFF delays (0.5 ms hardware + 0-65 ms software).
• Compact Design: Ideal for space-constrained industrial machines and equipment.

Technical Specifications

• Model: 1738-IB8M8
• Input Channels: 8 digital, sinking (NPN)
• Nominal Voltage: 24V DC
• Voltage Range: 10–28.8V DC
• On-State Current: 2–5 mA
• Off-State Current: 1.5 mA max
• Connector Type: 8 x M8 Pico 3-pin quick-disconnects (1 input per connector)
• Input Delay Time (ON to OFF): 0.5 ms hardware + 0–65 ms programmable
• PointBus Current: 75 mA
• Power Dissipation: 1.6 W max @ 28.8V DC
• Enclosure Ratings: IP65, IP66, IP67
• Operating Temperature: -20°C to +60°C (-4°F to +140°F)
• Storage Temperature: -40°C to +85°C (-40°F to +185°F)
• Humidity: 5% to 95% non-condensing
• Shock Resistance: 30g operating, 50g non-operating
• Vibration Resistance: 5g, 10–500 Hz
• Mounting: Direct machine mount or DIN-rail with backplane

Applications

• Compact Industrial Machines: Its small footprint and M8 connectivity make it perfect for tight spaces where traditional I/O solutions are too large.
• Sensor-Heavy Automation Systems: Streamlines wiring with one-to-one sensor connections, reducing complexity and potential for errors.
• OEM Equipment Integration: Provides a robust, pre-engineered I/O solution that simplifies cable management and enhances reliability for original equipment manufacturers.
• Harsh and Demanding Environments: The IP67 rating ensures continuous operation in areas subject to washdown, high humidity, dust, and vibrations, common in food processing, packaging, and automotive industries.
• Distributed Control Architectures: Ideal for decentralizing I/O points closer to sensors and actuators, minimizing cable runs and installation costs.
• Automated Assembly Lines: Its quick-disconnect M8 connectors facilitate rapid deployment and maintenance, reducing downtime in fast-paced production environments.

Why Choose the 1738-IB8M8?

• Simplified Wiring & Maintenance: The dedicated M8 connector for each input dramatically simplifies field device wiring and isolation, speeding up installation and troubleshooting.
• Superior Environmental Protection: With an IP67-rated sealed housing, this module is built to withstand extreme conditions, ensuring long-term reliability and reducing the need for protective enclosures.
• Optimized for Space Efficiency: Achieve high-density I/O in compact applications, allowing for more streamlined machine designs without compromising functionality.
• Enhanced System Reliability: Robust design and quick-disconnect features minimize potential points of failure, contributing to greater overall system uptime.
• Global Availability & Support: As an Allen-Bradley product, expect worldwide availability and comprehensive technical support, facilitating seamless project execution and operation.
• Seamless Integration: Part of the ArmorPoint I/O family, it integrates effortlessly into existing Allen-Bradley control systems, simplifying data exchange and configuration.

Order Now

Elevate your industrial automation with the Allen-Bradley 1738-IB8M8 ArmorPoint 8-Channel 24V DC Sinking Input Module. This high-performance module is readily available and ships globally to meet your project deadlines. For a complete solution, inquire about our range of matching M8 cordsets, compatible ArmorPoint output modules, and essential mounting accessories. Diversify your capabilities by exploring our comprehensive ArmorPOINT I/O Modules category for all models and specifications within this innovative family. Additionally, delve into our extensive Allen-Bradley Industrial Automation Products master category to discover our complete offering of controllers, drives, motors, HMIs, and accessories designed for peak industrial performance.