Allen-Bradley 1797-TB3S FLEX Ex I/O Terminal Base

Product Overview

Allen-Bradley 1797-TB3S FLEX Ex Terminal Base is an intrinsically safe terminal base unit designed for the FLEX Ex I/O system. It provides wiring connections and backplane communication for FLEX Ex I/O modules, allowing installation in hazardous areas where explosion protection is required.

Specifications

• Brand: Allen-Bradley (Rockwell Automation)
• Model: 1797-TB3S
• Product Type: FLEX Ex Terminal Base Unit
• Series: FLEX Ex I/O
• Terminal Type: Spring Clamp Terminal
• Terminal Configuration: 1 row of 16 terminals + 2 rows of 18 terminals
• Total Terminals: 52 terminals
• Connection Type: Spring Clamp Wiring
• Safety Type: Intrinsically Safe
• Operating Temperature: -20…70°C (-4…158°F)
• Wire Size: Up to 4 mm² (12 AWG)
• Mounting: DIN Rail / FLEX Ex I/O Assembly
• Application Area: Hazardous and industrial environments

Advantages & Features

• Designed for hazardous area applications
• Supports intrinsically safe FLEX Ex I/O modules
• Spring clamp terminals provide secure wiring connections
• Simplifies installation and maintenance
• Provides reliable module mounting and field wiring interface
• Suitable for harsh industrial environments
• Supports flexible distributed I/O system design

Applications

• Oil and gas industry
• Chemical processing plants
• Petrochemical facilities
• Explosion-risk industrial areas
• Process automation systems
• Hazardous area monitoring systems
• Industrial safety control systems

Precautions

• Must be used with compatible FLEX Ex I/O modules
• Only connect approved intrinsically safe circuits
• Confirm hazardous area certification requirements before installation
• Do not exceed rated voltage and current limits
• Disconnect power before wiring or maintenance
• Ensure correct grounding and installation procedures