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1771-PA | Allen Bradley PLC 5 Power Supply Module
- Regular price
- $519.35
- Sale price
- $519.35
- Regular price
-
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Product Description P/N: 1771-PA
Description
The Allen-Bradley 1771-PA is a power supply module for the PLC-5 family, designed to provide regulated power to a single 1771 I/O chassis. It accepts 120/220V AC input at 50–60 Hz, supplying stable 5V DC to backplane modules. This unit is commonly used in PLC-5 and Mini-PLC-2 systems for powering controllers and I/O devices in industrial automation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen Bradley |
| Category | Power Supply Systems |
| Part Number |
1771-PA |
| Module Type | Power Supply |
| Voltage Rating | 120/220 Volts AC |
| Input Voltage Range | 97-132 or 195-264 Volts AC |
| Max Real Input Power | 108 Watts |
| Max Apparent Input Power | 176 VA |
| Max Xformer Load | 270 VA |
| User Output Current | N/A |
| Backplane Output Current | 16 Amperes (at 5 Volts DC) |
| Frequency | 47-63 Hertz |
| Dimensions | 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm) |
Information About 1771-PA
The 1771-PA belongs to the Allen-Bradley 1771 power supply family, engineered to reliably power I/O chassis in PLC-5 systems. It supports input voltage ranges of 97–132V AC or 195–264V AC with nominal ratings of 1 A at 120V AC and 0.5 A at 220V AC. The module installs directly into the chassis and provides regulated 5V DC backplane power for all installed I/O modules. It includes output power indicators to confirm proper operation. Designed as an open-type module, it must be mounted inside a protective enclosure to prevent dust, debris, or ESD damage. Proper installation requires placing the module above or next to the I/O chassis (not below) to ensure adequate convection cooling. The 1771-PA is compatible with PLC-5 processors and Mini-PLC-2 (/02, /05, /16, /17) controllers but is not intended for parallel operation. Safe handling requires static protection measures, including grounding before contact and storing the unit in an anti-static bag when not in use.
Key Features:
- Design: Power supply module for Allen-Bradley 1771 I/O chassis.
- Input Ratings: 120/220V AC, 50–60 Hz; 1 A at 120V AC, 0.5 A at 220V AC.
- Output Power: Provides regulated 5V DC directly to the chassis backplane.
- Indicators: Front-panel output power indicators for quick diagnostics.
- Compatibility: Powers PLC-5 processors, adapters, and Mini-PLC-2 controllers.
- Installation: Mounts inside 1771 chassis; requires vertical clearance for cooling.
- Protection: Open-type module; requires enclosure and ESD-safe handling.
- Reliability: Stable single-chassis power for industrial automation applications.
The 1771-PA delivers dependable backplane power for Allen-Bradley PLC-5 systems, ensuring reliable operation of controllers and I/O modules in industrial environments.
Description
The Allen-Bradley 1771-PA is a power supply module for the PLC-5 family, designed to provide regulated power to a single 1771 I/O chassis. It accepts 120/220V AC input at 50–60 Hz, supplying stable 5V DC to backplane modules. This unit is commonly used in PLC-5 and Mini-PLC-2 systems for powering controllers and I/O devices in industrial automation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen Bradley |
| Category | Power Supply Systems |
| Part Number |
1771-PA |
| Module Type | Power Supply |
| Voltage Rating | 120/220 Volts AC |
| Input Voltage Range | 97-132 or 195-264 Volts AC |
| Max Real Input Power | 108 Watts |
| Max Apparent Input Power | 176 VA |
| Max Xformer Load | 270 VA |
| User Output Current | N/A |
| Backplane Output Current | 16 Amperes (at 5 Volts DC) |
| Frequency | 47-63 Hertz |
| Dimensions | 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm) |
Information About 1771-PA
The 1771-PA belongs to the Allen-Bradley 1771 power supply family, engineered to reliably power I/O chassis in PLC-5 systems. It supports input voltage ranges of 97–132V AC or 195–264V AC with nominal ratings of 1 A at 120V AC and 0.5 A at 220V AC. The module installs directly into the chassis and provides regulated 5V DC backplane power for all installed I/O modules. It includes output power indicators to confirm proper operation. Designed as an open-type module, it must be mounted inside a protective enclosure to prevent dust, debris, or ESD damage. Proper installation requires placing the module above or next to the I/O chassis (not below) to ensure adequate convection cooling. The 1771-PA is compatible with PLC-5 processors and Mini-PLC-2 (/02, /05, /16, /17) controllers but is not intended for parallel operation. Safe handling requires static protection measures, including grounding before contact and storing the unit in an anti-static bag when not in use.
Key Features:
- Design: Power supply module for Allen-Bradley 1771 I/O chassis.
- Input Ratings: 120/220V AC, 50–60 Hz; 1 A at 120V AC, 0.5 A at 220V AC.
- Output Power: Provides regulated 5V DC directly to the chassis backplane.
- Indicators: Front-panel output power indicators for quick diagnostics.
- Compatibility: Powers PLC-5 processors, adapters, and Mini-PLC-2 controllers.
- Installation: Mounts inside 1771 chassis; requires vertical clearance for cooling.
- Protection: Open-type module; requires enclosure and ESD-safe handling.
- Reliability: Stable single-chassis power for industrial automation applications.
The 1771-PA delivers dependable backplane power for Allen-Bradley PLC-5 systems, ensuring reliable operation of controllers and I/O modules in industrial environments.