Overview of the 1734-TBS Spring-Clamp Base
The Allen-Bradley 1734-TBS is a high-performance terminal base for the POINT I/O™ system, distinguished by its spring-clamp wiring mechanism. This base is designed for applications where installation speed and long-term vibration resistance are paramount. It provides the physical mounting point and the electrical interface (PointBus) for a wide variety of digital and analog POINT I/O modules.
Advanced Wiring and Connectivity
The spring-clamp design of the 1734-TBS allows for «tool-less» wiring once the clamp is opened, significantly reducing commissioning time. Unlike traditional screw terminals, spring clamps maintain a constant tension on the wire, which prevents loose connections caused by thermal cycling or mechanical vibration. This makes the 1734-TBS the preferred choice for mobile machinery, transport systems, and high-vibration industrial settings.
Technical Specifications
- Connector Type: Spring-clamp (Cage clamp).
- Wiring Points: 8-terminal configuration.
- Compatibility: All 1734 POINT I/O modules.
- Current Capacity: 10A max per power circuit.
- Voltage Rating: 300V max.
- Terminal Wire Size: 0.25…2.5 mm² (22…14 AWG).
Installation and Maintenance
The 1734-TBS is easily replaceable without removing other bases on the DIN rail, thanks to its modular interlocking design. The base includes a mechanical keying switch that prevents the insertion of an incorrect module type, protecting your hardware from voltage mismatches. Its compact footprint (12mm width) allows for high-density I/O configurations in small enclosures.
| Feature | Specification |
| Mounting Type | DIN Rail (35mm) |
| Enclosure Rating | None (Open-style) |
| Dimensions | 49 x 12 x 144 mm |
Product Insights
Maintaining secure electrical contacts is vital for system uptime. The 1734-TBS provides reliable signal integrity for both low-level analog signals and 24V DC discrete I/O, ensuring that your PLC/PAC system receives accurate field data at all times.
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This spring-clamp base provides a reliable mounting point for digital modules such as the 1734-OB8E protected output unit.
