# 1771-P4S B 120V AC Power Supply Module Allen-Bradley

The 1771-P4S B 120V AC Power Supply Module from Allen-Bradley is a crucial component for ensuring reliable operation within industrial automation systems. Designed to deliver stable DC power, this module is essential for powering Allen-Bradley Programmable Logic Controller (PLC) systems and I/O modules.

**Key Features:**

-   **Provides Regulated Power:** Delivers stable DC power for Allen-Bradley PLC controllers and I/O modules, ensuring consistent performance.
-   **Ensures Reliable Operation:** Designed to maintain stable and dependable operation within demanding industrial environments.
-   **Compact Design:** Features a compact form factor for easy installation within PLC racks and chassis, maximizing space efficiency.
-   **Industrial-Grade Construction:** Built with robust, industrial-grade components to ensure durability and long-term reliability.
-   **Allen-Bradley Quality:** Manufactured to Allen-Bradley's rigorous quality and safety standards, guaranteeing performance.

This power supply module is ideal for applications where dependable power is critical. The 1771-P4S B is trusted in industrial automation settings. If you need a reliable power solution, consider the 1771-P4S B to optimize your control systems. Contact Ram Automations at [info@ramautomations.com](mailto:info@ramautomations.com) for more information.

## Details

- **Price:** 999.0 USD
- **Vendor:** Allen-Bradley
- **Type:** Industrial Automation > Power Supplies > AC Power Supply Modules
- **Tags:** 120V AC, 1771-P4S B, AC Power Module, Allen-Bradley, Industrial Automation, PLC Power Supply

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| 1771-P4S B / USED | 999.00 USD | In stock |

## Images

- 1771-P4S B 120V AC Power Supply Module Allen-Bradley-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/1771-p4s-b-allen-bradley)
> Updated: 2026-09-18