Product Overview
The Allen-Bradley 1794-PS3 is a power supply module from the Flex I/O product family. It delivers reliable backplane power to Flex I/O modules and adapters in distributed I/O systems. This unit converts AC line voltage to stable 24V DC, ensuring consistent operation in industrial environments.
Technical Specifications Breakdown
Key parameters for the 1794-PS3 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Input Voltage Range | 85-264VAC |
| Input Frequency Range | 47-63 Hz |
| Nominal Input Voltage | 120V AC, 50/60 Hz; 1.7 A max. and 230V AC, 50/60 Hz; 1.1 A max. |
| Maximum Input Current | 1.9 A |
| Output Voltage | 24V DC nominal (20.4-27.6V DC range) |
| Output Current | 3 A (horizontal mounting); 2.8 A all other mountings |
| Output Power | 72 Watts |
| Overcurrent Protection | 3.2 A |
| Thermal Dissipation | 41.0 BTU/hr |
| Operating Temperature | 0 °C < Ta < +55 °C (+32 °F < Ta < +131 °F) |
Industry Applications
In automotive assembly, it powers sensors and actuators in remote cabinets. In material handling, it supports conveyor control modules. The wide input range (85-264VAC) accommodates global voltage standards, reducing inventory complexity.
Installation & Setup Guidance
Mount the 1794-PS3 horizontally to achieve the full 3A output current. For vertical or other orientations, derate to 2.8A. Use DIN rail or panel mounting as needed. Ensure isolation between AC input and DC output terminals per guidelines. The module measures 3.7 x 2.7 x 3.4 inches and uses an open-style enclosure.
Maintenance & Reliability
Inspect the module periodically for dust accumulation and ensure ambient temperature stays below +55°C. The unit includes overcurrent protection at 3.2A and overvoltage protection at 35V DC. Thermal dissipation is 41.0 BTU/hr, so adequate ventilation is recommended.
Compatibility & Integration
It can energize up to ten adapters. The output ripple is 1200 mV peak-to-peak maximum. Minimum load is 50 mA. Check isolation voltage of 2500V DC for system safety.
Selection Guide & Purchasing Advice
When selecting a power supply for your Flex I/O system, verify the total current draw of connected modules. The 1794-PS3 delivers 3A in horizontal mounting. For assistance with lifecycle status and availability, contact AutoDCSTech. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 1794-PS3 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
