1734-TBS | POINT I/O Spring-Clamp Terminal Base Unit | Allen Bradley

2026-04-20T18:48:33-07:00

Vendor: Allen-Bradley
Type: Terminal Base Unit
Price: 66.00

Product Overview

The Allen Bradley 1734-TBS serves as the critical mounting and wiring foundation for the POINT I/O system. This terminal base unit provides the physical interface and electrical backplane connection for 1734 series I/O modules. It features a spring-clamp mechanism that ensures permanent contact tension without the need for periodic re-tightening. We supply this component as 100% Brand New and Original, guaranteeing structural integrity and optimal conductivity for your distributed I/O architecture.

Technical Specifications

The 1734-TBS provides a high-density wiring solution with the following mechanical and environmental parameters:

Feature | Specification
Manufacturer | Allen Bradley
Product Line | POINT I/O (1734)
Terminal Type | Spring-Clamp
Number of Terminals | 8
Operating Temperature | -20 to 55 °C (-4 to 131 °F)
Vibration Resistance | 5 G @ 10 to 500 Hz
Operating Shock | 30 G
Relative Humidity | 5% to 95% (Non-condensing)
Enclosure Rating | Open Style (IP20)
Weight | 0.25 lbs (0.11 kg)

Engineering Advantages

The 1734-TBS addresses specific installation challenges in modern control cabinet design through its specialized clamping technology:

Vibration-Proof Connectivity: The spring-clamp design maintains constant pressure on the wire. Unlike traditional screw terminals that loosen under mechanical stress, this unit prevents intermittent signal loss in high-vibration applications such as stamping presses or conveyor systems.

Rapid Wiring Execution: This terminal base significantly reduces assembly time. Technicians insert wires directly using a small screwdriver to actuate the spring, eliminating the time-consuming process of torquing individual screws.

Modular Maintenance (RIUP): The 1734-TBS supports "Removal and Insertion Under Power" (RIUP). Engineers replace faulty I/O modules by simply unplugging them from the base; the wiring remains undisturbed on the 1734-TBS, which maintains system uptime and prevents cross-wiring errors during field service.

Compact Footprint: The slim design maximizes DIN rail density. It allows engineers to pack high-channel counts into restricted enclosure spaces without sacrificing accessibility or thermal performance.

FAQs

Can I use the 1734-TBS with any POINT I/O module? Yes. The 1734-TBS accommodates a wide range of digital and analog POINT I/O modules. However, always verify that your specific module's current requirements and voltage levels align with the 8-terminal configuration of this base.

What is the main benefit of spring-clamp over the 1734-TB screw-type base? The 1734-TBS (Spring-Clamp) eliminates the need for periodic torque maintenance. In environments with thermal cycling or vibration, screws can back out; the spring mechanism in the TBS model self-adjusts to maintain a gas-tight connection.

How do I properly ground the 1734-TBS? The terminal base snaps onto the DIN rail, which establishes the chassis ground. Ensure the DIN rail itself connects to a low-impedance earth ground to provide proper shielding and noise immunity for the installed I/O modules.

Does this base include the removable terminal block (RTB)? The 1734-TBS consists of the base and the integral spring-clamp terminal assembly. This one-piece design ensures the wiring interface stays locked to the backplane, providing a more stable mechanical connection than two-piece pluggable alternatives.