Product Overview
The Allen-Bradley 1794-PS13 is a Flex I/O power supply module from Rockwell Automation, designed to deliver reliable DC power to Flex I/O modules and adapters. This component is essential for maintaining stable operation in distributed industrial control systems, converting AC line voltage to a regulated 24VDC output. Its robust design includes overcurrent and overvoltage protection, making it a trusted choice for demanding environments.
Technical Specifications Breakdown
Key parameters for the 1794-PS13 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; 0.6 A max. / 230V AC, 50/60 Hz; 0.42 A max. |
| Maximum Input Current | 0.7 A |
| Output Voltage (Nominal) | 24V DC |
| Output Voltage Range | 20.4-27.6V DC |
| Output Current | 1.3 A |
| Output Power | 31.2 Watts |
| Overcurrent Protection | 1.4 A |
| Overvoltage Protection | 35V DC |
| Isolation Voltage | 2500V DC |
| Power Dissipation, max | 7 W |
| Thermal Dissipation | 23.9 BTU/hr |
Industry Applications
For example, in automotive assembly lines, the 1794-PS13 ensures consistent 24VDC power to remote I/O racks, reducing downtime from voltage fluctuations. In material handling systems, its output surge capability—sufficient to drive up to four adapters—supports daisy-chained configurations, simplifying wiring and lowering installation costs. The wide input voltage range of 85-264VAC makes it suitable for global facilities with varying line conditions.
Installation & Setup Guidance
Mount the module in an open-type enclosure using the provided dimensions: 87 (H) x 69 (W) x 69 (D) mm. Use solid or stranded copper wire with a size of 0.34-2.5 mm² (22-12 AWG) and insulation rated for 75°C or higher. Apply a torque of 0.8 Nm (7 lbs-in) to tighten connections. The wiring category is 2, so follow standard industrial wiring practices. Ensure isolation between AC input and DC output terminals meets the 2500V DC requirement.
Maintenance & Reliability
Periodically inspect the power indicator: it glows green when output voltage exceeds 20.4V DC but remains below 28V DC. If the indicator is off, check for no power, overvoltage (above 35V DC), or overcurrent (above 1.4 A). Operate within 0 to 55°C ambient temperature and 5 to 95% relative humidity (non-condensing). Store between -40 and 85°C. The module withstands 5 g vibration at 10 to 100 Hz and 30 g operating shock.
Compatibility & Integration
The 1794-PS13 is part of the Flex I/O system and supports daisy chaining output to power multiple adapters. It works with both AC and DC modules, providing flexible integration into existing control architectures.
Selection Guide & Purchasing Advice
When selecting a power supply for your Flex I/O system, the 1794-PS13 offers proven reliability with overvoltage and overcurrent protection. AutoDCSTech stocks this module and can assist with availability and lifecycle status. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 1794-PS13 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
