Allen-Bradley 1797-BIC FLEX Ex Bus Isolator Module

Allen-Bradley 1797-BIC FLEX Ex Bus Isolator Module

Product Overview

The Allen-Bradley 1797-BIC is a FLEX Ex Bus Isolator Module designed for the FLEX Ex I/O system. It provides galvanic isolation between standard FLEX I/O systems and intrinsically safe FLEX Ex modules, allowing reliable communication and power separation in hazardous industrial environments. It is commonly used in applications requiring explosion protection and remote I/O installation.

Main Specifications

• Manufacturer: Allen-Bradley (Rockwell Automation)
• Model: 1797-BIC
• Product Type: FLEX Ex Bus Isolator Module
• Series: FLEX Ex I/O 1797
• Power Supply: 18–32 VDC
• Power Consumption: Approx. 0.15 A
• Supported I/O Modules: Up to 8 FLEX Ex I/O modules
• Isolation Type: Galvanic isolation
• Intrinsic Safety Type: [Ex ib] IIC
• Operating Temperature: -20 to 70 °C
• Mounting: DIN Rail Mount
• Weight: Approx. 200 g
• Protection Function: Intrinsically safe bus isolation

Advantages & Features

• Provides reliable isolation between safe and hazardous areas
• Supports intrinsically safe FLEX Ex I/O systems
• Allows installation of remote I/O in explosive environments
• Galvanic isolation improves system safety and reliability
• Supports up to 8 FLEX Ex modules for flexible system expansion
• Compact DIN rail design for easy cabinet installation
• Designed for demanding industrial process applications

Applications

• Oil & Gas facilities
• Chemical processing plants
• Petrochemical systems
• Hazardous area automation
• Process control systems
• Remote I/O installations in explosive environments

Important Notes

• Confirm compatibility with FLEX Ex I/O components before installation
• Must be installed according to hazardous area safety requirements
• Use approved intrinsically safe wiring methods
• Do not connect non-intrinsically safe signals to the FLEX Ex backplane
• Ensure correct grounding and power supply configuration