Allen-Bradley 1734-TOP POINT I/O One-Piece Terminal Base Assembly

Product Overview

The Allen-Bradley 1734-TOP functions as the essential mounting and wiring foundation for the POINT I/O system. This one-piece terminal base assembly provides the physical interface between the PointBus backplane and the functional I/O module. It facilitates secure field wiring via eight screw-clamp terminals while distributing field-side power to the installed module. We supply this component as 100% Brand New and Original, ensuring a precise mechanical fit and optimal electrical conductivity for your distributed I/O architecture.

Technical Specifications

Engineering Advantages

• Simplified One-Piece Architecture: The integrated design combines the terminal block and the mounting base into a single unit. This reduces installation time and eliminates the risk of misplacing sub-components during high-volume cabinet assembly.

• Robust Mechanical Keying: The 1734-TOP features a mechanical keying system. This safeguard prevents the accidental insertion of a module into an incompatible base, protecting your hardware from voltage-level mismatches and wiring errors.

• High-Current Power Distribution: The base handles up to 8 Amps of terminal current. This capacity supports high-demand field devices and ensures that the integrated field power bus maintains stable delivery without overheating.

• Automatic Grounding Path: The assembly establishes a direct grounding connection through the DIN rail mounting clip. This design simplifies the grounding process and improves the system's resistance to electromagnetic interference (EMI).

FAQs

• Q: What is the main difference between the 1734-TOP and the 1734-TB?

  A: The 1734-TOP features a one-piece assembly design, whereas the 1734-TB consists of a separate mounting base and a removable terminal block. The 1734-TOP simplifies initial installation, but the 1734-TB allows for easier terminal block replacement without removing the base from the DIN rail.

• Q: Does the 1734-TOP support spring-clamp wiring?

  A: No. The 1734-TOP utilizes screw-clamp terminals. If your application requires vibration-resistant spring-clamp terminations, you should select the 1734-TOP3 or 1734-TBS models instead.

• Q: How do I set the mechanical keying for a specific module?

  A: You manually rotate the orange keying switch on the 1734-TOP to the position specified in your I/O module’s installation manual. This physical barrier ensures only the correctly assigned module type seats into the base.

• Q: Can I use the 1734-TOP with any POINT I/O module?

  A: Yes. The 1734-TOP provides a universal backplane interface and 8 terminals, making it compatible with the vast majority of digital and analog POINT I/O modules, provided the module’s pinout matches an 8-terminal configuration.