WhatsApp:+86 18150087953 WeChat: +86 18150087953 
Email：
Description
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 1734-EP24DC |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Product Type | POINT I/O 24V DC Expansion Power Supply |
| Series | 1734 POINT I/O |
| Input Voltage Range | 10 – 28.8V DC (Nominal 24V DC) -1-8 |
| POINTBus Output Current | Horizontal: 1 A @ 10-19.2V input; 1.3 A @ 19.2-28.8V input. Vertical: 1 A @ 10-28.8V input -1-14 |
| Max Supported Modules | Up to 17 POINT I/O modules to the right of the supply -5-6 |
| Inrush Current | 6 A for 10 ms -1-8 |
| Protection | Reverse Polarity / Overvoltage Protection -1-8 |
| Mounting | DIN Rail (Horizontal or Vertical) -1-8 |
| Power Dissipation | 3.0 W Max -1 |
| Thermal Dissipation | 10 BTU/hr @ 28.8V DC -1 |
| Dimensions (W x H x D) | 25.4 x 76.2 x 133.4 mm -2 |
| Weight | Approx. 120 g (4.3 oz) -8-10 |
| Operating Temperature | -20°C to +55°C -8-14 |
| Certifications | CE, UL, CCC, KC, ATEX/IECEx for hazardous locations (Class I, Division 2) -8-9 |
Main Features and Advantages
Modular power expansion for distributed I/O: The primary advantage of the 1734-EP24DC lies in its ability to seamlessly integrate into a POINT I/O system, providing a clean, DIN-rail-mounted solution for power expansion. It occupies a single module slot and connects via a removable terminal block (RTB), maintaining the system’s high-density architecture -5. This eliminates the need for complex external wiring or dedicated panel space for an additional power supply. Its ability to be installed in both horizontal and vertical orientations provides flexibility for panel layout, though it is important to note the derating of the POINTBus output current when mounted vertically -1.
Advanced system partitioning and protection: The 1734-EP24DC excels at creating independent field voltage partitions. By isolating the power bus, it allows engineers to separate sensitive analog input modules from high-current digital output modules, preventing electrical noise and faults from propagating throughout the system and enhancing overall stability -5-10. The module includes robust protection features such as reverse polarity protection, which safeguards the module and connected I/O from wiring errors -1-8. The built-in status indicators, including a field power status indicator and a 5V system power indicator, provide immediate visual feedback on the module’s operational health, greatly simplifying troubleshooting and maintenance -1-8.
High-reliability design for demanding environments: Engineered for industrial environments, the 1734-EP24DC offers a wide operating temperature range and is approved for use in hazardous locations with Class I Division 2 ratings -9. The module uses zinc-plated chromate-passivated steel DIN rail for proper grounding, which is critical for reliable operation and safety -12. Additionally, the module’s design ensures that output voltage stays within specification even when the input supply voltage drops out for up to 10 ms at maximum load, providing a degree of immunity to power glitches commonly found in industrial settings -1. This combination of features makes the 1734-EP24DC a dependable choice for critical control systems.
Application Fields
The 1734-EP24DC is a cornerstone for expanding and managing power in complex distributed I/O systems and is deployed across a wide range of industries. In modular machine design, such as in packaging lines consisting of infeed, filling, capping, and labeling sections, the 1734-EP24DC is used to provide local power to the I/O in each subsequent section -8-13. This allows a single network cable to daisy-chain along the machine, eliminating the need to run individual power cables back to a central cabinet for each module bank and significantly reducing installation costs and complexity.
In material handling systems, such as extensive conveyor networks and sortation systems, the 1734-EP24DC allows for the strategic placement of I/O blocks for motor starters, photo-eyes, and diverters -8-13. As the conveyor line extends, additional I/O can be added by inserting an expansion power supply to power the next cluster of devices, all while maintaining a single network trunk. This approach reduces voltage drop and installation material costs. Furthermore, the 1734-EP24DC is ideal for factory-wide distributed I/O applications where drops are placed near groups of machines -15. It enables these remote I/O panels to be powered locally from a branch of the system, rather than requiring a large, centrally-located power supply with long, high-current wire runs, making it perfect for automotive assembly plants, food processing facilities, and water treatment plants utilizing EtherNet/IP, DeviceNet, or other networks supported by POINT I/O adapters -1-13.
