Allen-Bradley 1794-TB37DS Flex I/O 37-Pin Terminal Base

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

Availability: 9 left in stock

DescriptionThe 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...

SKU: 1794-TB37DS

Manufacturer: Allen-Bradley
Product No.: 1794-TB37DS
Product Type: Terminal Base Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 1360g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

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.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.