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Allen-Bradley 1797-TB3S FLEX Ex Spring Clamp Terminal Base

1. Product Description

The 1797-TB3S is a spring clamp terminal base designed for Allen-Bradley’s FLEX Ex I/O system, specifically for use in hazardous environments (Zone 1). It provides secure wiring connections for FLEX Ex I/O modules without requiring tools, simplifying installation in industrial automation systems .

2. Key Features

Spring Clamp Technology – Enables tool-less wiring, reducing installation time and improving maintenance efficiency .
Hazardous Area Compatibility – Certified for Zone 1 installations, eliminating the need for additional explosion-proof enclosures .
Modular Design – Supports horizontal or vertical DIN rail mounting for flexible system integration .
High Reliability – Ensures stable connections in harsh industrial environments with vibration resistance .
Compatibility – Works with FLEX Ex I/O modules (e.g., 1797-IE8, 1797-OE4) and ControlNet Ex communication interfaces .

3. Technical Specifications

Parameter	Specification
Terminal Type	Spring clamp (tool-less)
Mounting	DIN rail (35 mm)
Compatibility	FLEX Ex I/O modules
Hazardous Area Rating	Zone 1
Certifications	CE, ATEX (for hazardous locations)