1794-PS13 | Allen-Bradley | Flex I/O Power Supply Module

Product Overview

The Allen-Bradley 1794-PS13 serves as the primary power source for the Flex I/O 1794 system, converting wide-range AC input into stable 24V DC power. This module specifically drives communication adapters and I/O modules within a distributed rack. We supply this component as 100% Brand New and original, ensuring your control system maintains maximum uptime with factory-certified electrical specifications.

Technical Specifications

The 1794-PS13 provides consistent power delivery across a broad input spectrum:

Engineering Advantages

The 1794-PS13 addresses critical power distribution challenges in industrial cabinets:

• Global Voltage Compatibility: The wide input range (85–264V AC) allows the module to operate on global power grids without requiring external transformers or hardware jumpers.

• High-Surge Capability: The unit generates an output surge capacity sufficient to power up to four Flex I/O adapters simultaneously. This eliminates the need for multiple power supplies in expanded I/O configurations.

• Superior Electrical Isolation: 2500V DC isolation protects sensitive low-voltage I/O signals from AC line noise and high-voltage transients, preventing data corruption and hardware damage.

• Compact Thermal Management: Low power dissipation (7W max) minimizes heat buildup in crowded enclosures. This design allows for high-density DIN rail mounting without exceeding the thermal limits of adjacent modules.

FAQs

Can the 1794-PS13 power non-Flex I/O devices?

While designed specifically for the Flex I/O system, it provides a standard 20.4–27.6V DC range. However, we recommend using it exclusively for 1794 adapters and modules to ensure the 1.3A current limit remains within the specified overcurrent protection threshold of 1.4A.

Does this power supply require a minimum load to maintain voltage stability?

No. The 1794-PS13 supports a minimum load of 0mA. This ensures the output voltage remains stable even when the connected I/O modules are in an idle or disconnected state.

How does the unit handle AC line fluctuations?

The module operates through a continuous input range of 85V to 264V AC. This allows the power supply to "ride through" minor brownouts and frequency shifts (47–63 Hz) without dropping the 24V DC output link.

What is the recommended mounting orientation?

Mount the 1794-PS13 horizontally on a standard DIN rail. Horizontal mounting optimizes the 23.9 BTU/hr thermal dissipation, ensuring air flows naturally across the chassis to maintain the 1.3A output rating without derating.