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- Allen-Bradley
- 1738-EP24DC
- ArmorPoint I/O Extended Power Module
- USA
- 107.95 x 31.75 x 66.8 mm
- 0.289 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Allen-Bradley 1738-EP24DC ArmorPoint I/O Extended Power Module is an industrial power distribution module designed to extend and manage 24 V DC field power within ArmorPoint distributed I/O systems. It is used to segment power groups, support additional I/O modules, and ensure stable power delivery in modular automation architectures.
This module plays a key role in expanding system capacity by separating and reinforcing field power distribution across ArmorPoint I/O networks, making it suitable for scalable machine-level and process automation systems.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | 1738-EP24DC |
| Product Type | ArmorPoint Extended Power Module |
| Function | Field power distribution / backplane power extension |
| Input Voltage | 24 V DC |
| Output Voltage | 24 V DC |
| Power Function | Extends PointBus and field power |
| I/O Capacity Support | Up to multiple module segments |
| Mounting Type | On-machine / DIN rail compatible base |
| Protection Rating | IP65 / IP67 (system dependent) |
| Operating Temperature | -20°C to +60°C |
| Dimensions | 107.95 × 31.75 × 66.8 mm |
| Weight | 0.289 kg |
| Application Environment | Industrial automation systems |
Function and Working Principle
The 1738-EP24DC module is used to extend and manage power distribution in ArmorPoint I/O systems. It provides additional 24 V DC field power to I/O modules located downstream in the system and also helps partition power groups within the same network.
It effectively allows larger distributed I/O systems by ensuring that voltage and current demands are properly segmented and supported across multiple module groups.
This enables:
Stable distributed power delivery
Expansion of I/O system capacity
Separation of power zones for different module groups
Improved system reliability under load
Reduced voltage drop across extended I/O configurations
It is especially useful in large automation systems where multiple I/O clusters are deployed on machines or production lines.
Role in Industrial Control Systems
The 1738-EP24DC plays an important role in distributed automation architectures, supporting:
ArmorPoint I/O system expansion
Field power segmentation
Machine-level distributed control systems
EtherNet/IP-based automation networks
Industrial modular I/O architectures
Factory automation systems
It helps ensure stable power delivery and scalable system design in industrial environments.
Industrial Applications
The Allen-Bradley 1738-EP24DC is widely used in:
Automotive manufacturing systems
Packaging machinery
Material handling systems
Robotic automation cells
Conveyor systems
Factory automation networks
Distributed machine control systems
It is especially suitable for large-scale I/O systems requiring power expansion and segmentation.
Installation and System Integration
Proper installation ensures stable performance and system reliability:
Installed within ArmorPoint I/O assemblies
Connected inline with I/O module groups
Powered by 24 V DC supply systems
Used to segment and extend power domains
Requires proper system design for load balancing
Should follow industrial wiring and grounding standards
Correct integration improves power stability and system scalability.
Compatible System Components
The 1738-EP24DC typically works alongside:
Allen-Bradley ArmorPoint I/O modules
1738 EtherNet/IP adapters
PLC systems (ControlLogix / CompactLogix)
Industrial power supplies
Distributed automation systems
Machine control architectures
These components together form a complete modular industrial I/O system.
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| 1738-AENTR | EtherNet/IP Adapter | Network communication module | Distributed I/O systems |
| 1738-FPD | Field Power Distributor | Power segmentation function | I/O system isolation |
| 1734-EP24DC | POINT I/O Power Module | Similar expansion concept | Compact I/O systems |
| FLEX I/O Power Modules | Modular power system | Flexible configuration | Industrial automation |
| ControlLogix Power Supplies | Centralized power unit | High-capacity control systems | Large automation systems |
Key Advantages
Extends ArmorPoint I/O system power capacity
Improves distributed power stability
Supports modular system expansion
Reduces voltage drop in large I/O systems
Enables power segmentation across modules
Suitable for harsh industrial environments
Technical FAQs
What is the main function of the 1738-EP24DC?
It extends and distributes 24 V DC field power in ArmorPoint I/O systems.
Where is it commonly used?
It is commonly used in distributed industrial automation systems, machine control, and factory production lines.
Why is power extension needed in distributed I/O systems?
Because large I/O systems require segmented power distribution to maintain stable voltage and reliable operation.
Conclusion
The Allen-Bradley 1738-EP24DC ArmorPoint I/O Extended Power Module is a reliable industrial power distribution solution designed for scalable distributed automation systems. Its ability to extend field power, segment I/O power domains, and support modular expansion makes it essential for large and complex industrial control architectures.
For engineers and system designers, it provides an effective way to improve power stability, expand system capacity, and maintain reliable operation across distributed I/O networks.