Product Introduction
The Allen-Bradley 1771-P7/C Power Supply Module is a high-capacity rack-mounted power supply designed for the Allen-Bradley 1771 PLC-5 I/O System. It provides reliable regulated DC power to the backplane, supporting larger PLC racks and multiple I/O modules.
The module accepts 120 or 220 VAC input and converts it to a stable backplane voltage suitable for all installed modules. With its higher power capacity, it can support larger numbers / digital, analog, and communication modules, making it ideal for industrial automation systems with increased load demands.
The 1771-P7/C is commonly used in applications requiring robust power delivery for manufacturing lines, process control systems, and critical infrastructure automation. Its design ensures long-term reliability and compatibility with existing PLC-5 I/O systems while simplifying installation in the rack.
Product Specifications
| Parameter | Specification |
|---|---|
| モデル | 1771-P7/C |
| ブランド | Allen-Bradley |
| Module Type | Power Supply Module |
| Series | 1771 PLC-5 I/O Series |
| Nominal Input Voltage | 120 or 220 VAC |
| Input Frequency | 47 – 63 Hz |
| Maximum Real Input Power | 108 W |
| Maximum Apparent Input Power | 176 VA |
| Maximum Transformer Load | 270 VA |
| Installation Method | 1771 I/O Chassis Mount |
| Power Distribution Method | Backplane Supply for I/O Modules |
| Dimensions | 315 × 115 × 159 mm |
| 重量 | 1.95 kg |
Applications
• PLC backplane power supply
Supplies stable DC power to all installed modules in large 1771 racks, supporting high-demand systems.
• Industrial automation control
Used to power digital, analog, and communication modules in manufacturing and production systems with higher load requirements.
• Process control systems
Chemical, oil & gas, and refining plants rely on this module to power PLC racks controlling valves, pumps, and instrumentation.
• Power generation and distribution
Provides reliable backplane power for PLC systems managing auxiliary equipment, monitoring, and control operations in power plants.
• Infrastructure automation
サポートs municipal water treatment, utilities, and other infrastructure systems requiring high-capacity PLC backplane power.
Advantages
• High-capacity power output
サポートs larger racks with more I/O modules due to its higher real and apparent power ratings.
• Dual input voltage compatibility
Operates on 120 or 220 VAC, providing flexibility in diverse industrial installations.
• Reliable AC-to-DC conversion
Ensures stable power to the PLC backplane, even under varying input conditions.
• Industrial-grade durability
Designed to withstand electrical noise, environmental stress, and load variations common in industrial facilities.
• Seamless integration with 1771 I/O systems
Fully compatible with existing PLC-5 modules, facilitating system upgrades or expansions.
• Simplified rack installation
Mounts directly in the chassis and distributes power through the backplane without additional wiring.
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