1734-TOP3S Allen-Bradley POINT I/O One-Piece 3-Wire Spring-Clamp Terminal Base

Product Overview: Allen-Bradley 1734-TOP3S

The Allen-Bradley 1734-TOP3S is a premium, one-piece terminal base assembly designed for the POINT I/O™ system. This specific model features spring-clamp terminals and a 3-wire configuration, making it the ideal choice for high-density I/O applications where speed of installation and long-term vibration resistance are critical. By integrating the base and terminal block into a single unit, the 1734-TOP3S provides enhanced structural integrity and a simplified mounting process on standard DIN rails.

Key Technical Features

  • Terminal Type: Spring-clamp (Cage clamp) for secure, tool-less wiring.
  • Wiring Configuration: 3-wire (8 terminals available).
  • Design: One-piece integrated assembly.
  • Operating Voltage: Up to 240V AC/DC.
  • Mounting: 35mm DIN Rail.
  • PointBus Current: 75mA max.

Advanced Engineering and Reliability

The 1734-TOP3S is engineered to provide a robust electrical backplane interface (PointBus) for POINT I/O modules while facilitating efficient field power distribution. The spring-clamp mechanism ensures constant pressure on the wire, preventing loose connections often caused by thermal cycling or mechanical stress in industrial environments. Its compact 12mm width allows engineers to maximize cabinet space without compromising signal quality.

Characteristic Value
Isolation Voltage 300V (continuous)
Wire Size 0.25…2.5 mm² (22…14 AWG)
Operating Temp -20°C to +55°C

Frequently Asked Questions

What is the benefit of the «3-Wire» design? It allows for direct connection of sensors and actuators that require separate power, ground, and signal wires, reducing the need for external distribution terminal blocks.


Do you need more references from this brand? Explore our full catalog of Allen-Bradley here.

Use this 3-wire spring base to streamline the connection of sensors to your 1734-AENTR Ethernet node.

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