Allen-Bradley 1734-TOPS POINT I/O Terminal Base

Allen-Bradley 1734-TOPS POINT I/O Terminal Base Configured for field wiring termination and backplane interfacing in POINT I/O systems, the Allen-Bradley 1734-TOPS (1734-TOPS Terminal Base) provides direct electrical execution. The one-piece assembly incorporates integrated spring-clamp terminals for connection of field devices to compatible POINT I/O modules through the POINTBus architecture. Suffix Breakdown & Model Matrix The supplied documentation identifies 1734-TOPS as a fixed catalog number representing the spring-clamp version of the 1734-TOP terminal base. No additional suffix matrix or ordering breakdown is specified in the provided data. Hardware Specifications Parameter Specification Model 1734-TOPS Brand Allen-Bradley Product Type POINT I/O One-Piece Terminal Base Product Family POINT I/O Terminal Style 8 Spring-Clamp Terminals Construction One-Piece Design Mounting Style DIN Mounted Body Style Open Style POINTBus Current (Max) 75 mA Backplane Supply Voltage 5 VDC Field Power Input Range 10-28.8 VDC, 220 mA, Class 2 Isolation Voltage 50 V, tested at 1500 VAC for 60 s Power Dissipation 1.86 W @ 750 ohm load; 2.15 W @ 0 ohm load Thermal Dissipation 6.34 BTU/hr @ 750 ohm load; 7.33 BTU/hr @ 0 ohm load Wire Size 0.25-2.5 mm2 (23-13 AWG) Wire Type Shielded Copper, Solid or Stranded Dimensions 56.0 x 12.0 x 75.5 mm Weight 36.9 g Enclosure Rating Open Style Temperature Code T4 Operating Temp Not specified in provided data Power Consumption Up to 2.15 W Origin Rockwell Automation Manufacturing I/O Density Scaling in POINT I/O Architectures The 1734-TOPS supports modular I/O density scaling by providing a compact termination platform for field signals and power distribution. The spring-clamp connection method eliminates screw-tightening requirements during conductor installation while maintaining electrical continuity. Within POINT I/O assemblies, the terminal base serves as the physical interface between field wiring and installed I/O modules, preserving PointBus backplane connectivity across the node. Frequently Asked Questions Q: Does the 1734-TOPS require tools for conductor retention? A: The unit utilizes spring-clamp terminals designed for tool-assisted wire insertion and retention without terminal screw adjustment. Q: What is the maximum POINTBus current requirement of the terminal base? A: The specified POINTBus current requirement is 75 mA. Q: Can the 1734-TOPS be used with both analog and digital POINT I/O modules? A: The terminal base is designed for compatibility with supported POINT I/O modules. Module compatibility should be verified against the applicable POINT I/O installation documentation. Field Installation Guidelines Mount the terminal base securely onto a grounded DIN rail before installing the associated I/O module. Use shielded copper conductors within the specified 0.25-2.5 mm2 wire size range. Route signal wiring separately from motor feeders, contactor wiring, and other high-energy conductors. Verify correct conductor insertion and spring-clamp engagement before energizing field circuits. Maintain proper grounding practices for cable shields according to plant electrical standards. Confirm module-to-terminal-base alignment before applying power to the POINT I/O assembly. Do not exceed the specified field power input range during commissioning. Inspect terminal connections periodically in installations subject to vibration.