Allen Bradley 1794-PS3 Power Module For Distributed I/O Control Systems
The 1794‑PS3 is a dedicated FLEX I/O power supply module under Allen‑Bradley distributed control system portfolio. It converts universal AC input into stabilized 24V DC power to feed FLEX I/O adapters and I/O modules. Designed for Bulletin 1794 FLEX I/O, FLEX Ex & FLEX XT distributed remote I/O stations, it delivers reliable power to remote field I/O racks, supporting decentralized automation architecture widely adopted in industrial sites. It can supply up to 10 FLEX I/O adapters, serving as the core power source for remote signal acquisition and output control nodes.
- ✅ Wide AC input range 85–264 VAC, compatible with global industrial power grids
- ✅ Max 3A output current (horizontal mounting), total output power up to 72W
- ✅ Built‑in overvoltage, overcurrent protection to shield I/O modules from power surges
- ✅ DIN rail mounting design, seamless installation with FLEX I/O base terminals
- ✅ Green LED power status indicator for intuitive on‑site diagnostics
- ✅ Stable voltage regulation (20.4~27.6 VDC) with low output ripple
- ✅ Compatible with FLEX I/O, FLEX XT and hazardous‑location FLEX Ex systems
- ✅ Compact modular structure, saves cabinet installation space
- ✅ Strict industrial grade, stable performance under fluctuating factory environment
| Item | Parameter |
|---|---|
| Model | 1794‑PS3 |
| Brand | Allen‑Bradley |
| Input Voltage | 85–264 VAC, 47–63 Hz |
| Nominal Input | 120/230 VAC |
| Max Input Current | 1.9 A |
| Output Voltage | 24 V DC (regulated: 20.4 ~ 27.6 VDC) |
| Rated Output Current | 3 A (horizontal mounting); 2.8 A (other mounting orientations) |
| Max Output Power | 72 W |
| Supported Adapters | Up to 10 FLEX I/O adapters |
| Output Ripple | Max 1200 mV peak‑to‑peak |
| Min Load Requirement | 50 mA |
| Isolation Voltage | 2500 V DC (1 second test) |
| Mounting | Standard DIN rail |
| Operating Temperature | 0°C ~ +55°C |
| Dimensions (H×W×D) | 87 × 94 × 69 mm |
| Net Weight | ~0.58 kg |
- ???? Manufacturing automation
- ???? Water & wastewater treatment
- ⛏ Mining & material handling
- ???? Oil & gas auxiliary control
- ???? Port & logistics equipment
- ???? Food & beverage processing
- ⚡ Energy & power auxiliary control
- Remote distributed FLEX I/O control racks
- Field signal collection stations on production lines
- Hazardous area FLEX Ex remote I/O systems
- Retrofit & upgrade of legacy systems
- Cabinet‑mount remote monitoring & control nodes
Suggested picture arrangement for store page:
- Main product image (module front view)
- Module installed on DIN rail inside control cabinet (application scene)
- Warehouse stock photo for supply credibility display
Title: Allen‑Bradley 1794‑PS3 FLEX I/O Power Supply Module, 120/230VAC Input 24VDC 3A Power Module for Distributed Remote I/O Control System
Brief Description: 1794‑PS3 is original Allen‑Bradley FLEX I/O power module, supplying regulated 24VDC power for 1794 series remote I/O adapters and modules. Wide universal AC input, integrated circuit protection, DIN rail installable, widely used for distributed industrial automation control systems.
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