Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 1734-VTM |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Product Type | Voltage Terminal Module (Power Distribution Interface) |
| Primary Function | Provides a connection point for field device power (VDC and Common) |
| Input Voltage | Derives power from the Point I/O 24V DC system power bus |
| Output Terminals | Dedicated, high-current screw terminals for VDC and Common |
| Terminal Rating | Typically supports up to 10A continuous current |
| Wiring Compatibility | Accepts solid or stranded wire, typical range 12-24 AWG |
| Connection | Plugs into standard 1734 series terminal base (e.g., 1734-TB, 1734-TBS) |
| Status Indication | May include a power status LED |
| Isolation | Connected directly to the system power bus; provides no additional isolation |
| Compatible I/O | Designed to provide power for digital input modules (e.g., 1734-IBx), analog input modules, and other 24V DC field devices |
| Operating Temperature | -20 to 60 °C (-4 to 140 °F) |
| Mounting | Installs on DIN rail via 1734 terminal base |
| Safety Standards | cULus Listed, CE marked |
Main Features and Advantages
Simplified Wiring and Enhanced Organization: The most significant advantage of the Allen-Bradley 1734-VTM is the dramatic simplification of control panel wiring. Instead of running individual power wires from a remote terminal block to each sensor or daisy-chaining power between multiple sensors with field wire nuts, the installer lands a single pair of heavy-gauge power wires (24VDC and Common) to the 1734-VTM module. Then, shorter jumper wires or the terminal base’s internal routing channels can be used to distribute power to the adjacent I/O modules’ field device power terminals. This creates a clean, professional, and easily traceable wiring layout, reducing clutter, minimizing wiring errors, and significantly cutting installation and commissioning time.High-Capacity, Reliable Power Distribution: Engineered as part of the robust Point I/O system, the 1734-VTM Point I/O Voltage Terminal Module provides a high-current connection point capable of supplying power to a bank of sensors. Its screw terminals are designed for secure connections that resist loosening under vibration, ensuring a reliable power source. By centralizing the power connection, it reduces the number of terminations on the main system power supply, improving reliability. The module’s integration into the rack means it is always correctly positioned relative to the I/O modules it serves, and its status LED (if present) provides a quick visual confirmation that power is present at the distribution point. This design approach not only improves initial installation but also makes future modifications, additions, and troubleshooting much more efficient, as all power connections for a group of sensors are located in one logical, labeled location within the I/O rack.
Application Field
The Allen-Bradley 1734-VTM is employed in virtually any application utilizing a distributed Point I/O system with multiple 24V DC sinking input devices. In Automated Machinery and Discrete Manufacturing Cells, it is indispensable. A single 1734-VTM module can power an entire bank of proximity sensors on a robotic welding cell, limit switches on an assembly station, or photoelectric sensors on a packaging line. This centralized power distribution is crucial in panels with high sensor density, keeping wiring manageable and serviceable.Within Material Handling and Conveyor Systems, where I/O drops are often distributed along the line, the 1734-VTM module is used at each drop to provide local power for sensors detecting box presence, position, and orientation. It simplifies wiring in control panels for Process Skids and Packaged Systems in the water, chemical, and oil & gas industries. Here, the module powers level switches, pressure switches, and valve position feedback sensors, contributing to a neat and modular panel design that is easier to factory-test and commission on-site. The Allen-Bradley 1734-VTM is also highly beneficial in Automated Test Equipment and Lab Systems, where clean, reliable wiring is essential for signal integrity and where sensors may be frequently added or reconfigured. Its use is a best practice in system integration to achieve professional, reliable, and maintainable control enclosures.
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