• Allen-Bradley 1794-TB37DS
  • Allen-Bradley 1794-TB37DS
  • Allen-Bradley 1794-TB37DS
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Allen-Bradley 1794-TB37DS Flex I/O Terminal Base Module

Allen-Bradley 1794-TB37DS Flex I/O Terminal Base Module

Description

The 1794-TB37DS is a high-density 37-pin D-Shell terminal base unit designed for the Allen-Bradley Flex I/O 1794 modular platform. This unit serves as the mechanical and electrical interface for Flex...

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SKU: 1794-TB37DS
Proveedora: Allen-Bradley
tipo: Terminal Base Module
Related Series:

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Description

The 1794-TB37DS is a high-density 37-pin D-Shell terminal base unit designed for the Allen-Bradley Flex I/O 1794 modular platform. This unit serves as the mechanical and electrical interface for Flex I/O modules, replacing traditional screw or spring-clamp terminals with a standardized DB-37 female connector. This design facilitates the use of pre-fabricated cable harnesses, significantly reducing wiring labor and minimizing potential human error during commissioning and maintenance.

Features

  • High-Density Interface: Features a 37-pin D-Sub female connector for rapid, reliable field wiring.
  • Flex I/O Compatibility: Supports both discrete digital and analog Flex I/O modules within the 1794 platform.
  • Simplified Maintenance: Enables efficient hot-swapping of modules, reducing downtime in critical automation environments.
  • Robust Power Handling: Supports a maximum aggregate current capacity of 10 A for field power distribution.
  • Mechanical Interlock: Includes a rotatable keyswitch guide to ensure correct module-to-base alignment and prevent improper installation.

Applications

The 1794-TB37DS is ideal for control cabinet applications where space is at a premium and high-density I/O connectivity is required. It is commonly used in remote marshalling panels, custom breakout board assemblies, and test sets where rapid, error-free signal routing is necessary.

Technical Specifications

Model 1794-TB37DS
Brand Allen-Bradley / Rockwell Automation
Interface 37-Pin D-Shell (DB-37) Female
Max Current 10 A Aggregate
Operating Temp 0 to 55 degC (32 to 131 degF)
Vibration Resistance 5 g at 10 to 500 Hz
Humidity 5 to 95 percent (non-condensing)
Mounting DIN-rail or Panel Mount

Installation Guidelines

  • Mounting: Ensure the base is securely snapped onto a standard Top-Hat DIN-rail or bolted to a flat enclosure sub-panel.
  • Wiring: Use a compatible DB-37 cable harness. Ensure the connector is fully seated and secured with mounting screws to a torque of 0.6 Nm (5.3 lb-in) for a gas-tight connection.
  • Safety: Always verify the mechanical keyswitch position matches the intended I/O module before attempting to seat the module into the base.
  • Handling: This is an open-style component; ensure it is installed within a suitable industrial enclosure to protect against environmental contaminants.
  • Power: Ensure all field power is disconnected before installing or removing any Flex I/O modules from the terminal base.

FAQ

Q: Can I use this base with any Flex I/O module?
A: The 1794-TB37DS is compatible with most 1794 Flex I/O modules, but you must ensure the mechanical keyswitch is set correctly to match the specific module type to prevent damage.

Q: What is the maximum current capacity?
A: The terminal base is rated for a maximum aggregate current of 10 A.