Allen Bradley 1794-PS13 Power Supply Unit

The AB 1794-PS13 is an AC-to-DC power supply module designed for use with the FLEX I/O system. Accepting a wide input voltage range of 85–264V AC (nominal 110/240V), it delivers a regulated 24V DC output at 1.3 A to power FLEX I/O adapters and I/O modules.

Engineered for distributed control environments, the 1794-PS13 provides compact, DIN-rail-mounted power distribution for FLEX I/O nodes. Its robust design and easy wiring make it ideal for OEM panels, process installations, and machine automation setups requiring decentralized power delivery.

Technical Specifications

Model: 1794PS13
Series: FLEX I/O
Type: Power Supply Module
Input Voltage Range: 85–264V AC
Output Voltage: 24V DC
Output Current: 1.3 A
Power Output: 31.2 W
Application: Powering FLEX I/O adapters and modules

Electrical Specifications

Input Voltage (AC 50/60 Hz): 85–264 V AC (nominal 110/240 V AC)
Output Voltage: 24 V DC regulated
Output Current Rating: 1.3 A
Inrush Current: < 30 A typical
Ripple & Noise: < 100 mV peak-to-peak
Redundancy: Not supported
Efficiency: Approx. 85%
Protection Features: Overload, overvoltage, short-circuit protection
Isolation: Input-to-output isolation provided

Mechanical Specifications

Width: 69 mm
Height: 87 mm
Depth: 69 mm
Mounting Type: DIN rail
Enclosure Type: IP20 (when installed in cabinet)
Terminal Type: Screw terminal connections
Weight: Approx. 280 g
Cooling Method: Convection-cooled (fanless)
Installation Orientation: Vertical preferred

Environmental Specifications

Operating Temperature: 0…55 °C
Storage Temperature: –40…85 °C
Humidity: 5% to 95% non-condensing
Shock Resistance: 30 g, 11 ms (IEC 60068-2-27)
Vibration Resistance: 2 g, 10–500 Hz (IEC 60068-2-6)
Altitude Limit: Up to 2000 m
Pollution Degree: 2
Certifications: CE, UL, cULus, RoHS, FM (when installed in certified systems)

Compliance & Communication

System Compatibility: FLEX I/O platform
Connection Method: Screw-type terminal block
Network Communication: Not applicable (no network interface)
Diagnostics: None – fixed output
Standard Compliance: UL 508, IEC 61010-1
Redundancy Options: Use dual PS13 modules with diode modules for basic redundancy (external)

Key Features & Benefits

✅ Wide Input Range (85–264V AC) – Operates on global line voltages with no selector switch

✅ Compact FLEX Form Factor – Ideal for use in distributed I/O stations alongside FLEX adapters

✅ 24V DC, 1.3A Output – Reliable power delivery for FLEX modules and adapters

✅ Overload & Short Circuit Protection – Ensures safety and long service life

✅ DIN Rail Mountable – Quick, tool-free installation into control panels

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