# ABB E4S 4000 PR121 PLI 4000A 4p F HR Circuit Breaker

The **ABB E4S 4000 PR121 PLI** circuit breaker is a robust solution designed for demanding industrial applications. This 4-pole circuit breaker, with a current rating of 4000A, provides superior protection against overloads and short circuits, ensuring the safety and efficiency of your electrical systems. Ideal for a wide range of industrial settings, the **ABB E4S 4000 PR121 PLI** is built to withstand harsh environments, offering long-lasting performance and reliability.

This high-performance circuit breaker incorporates the **PR121 PLI** feature, which ensures precise protection coordination, enhancing the reliability of your electrical infrastructure. The **ABB E4S 4000 PR121 PLI** is engineered to meet the stringent requirements of modern industrial applications. It is a testament to **ABB's** commitment to quality and innovation. This circuit breaker is designed for maximum efficiency and durability, making it an essential component for any industrial electrical system. The **F HR** designation signifies its suitability for harsh environments, ensuring continuous operation under challenging conditions.

-   **High Current Rating:** Handles up to 4000A, providing robust protection.
-   **4-Pole Design:** Ensures comprehensive protection for various electrical circuits.
-   **PR121 PLI Protection:** Offers precise and accurate protection coordination.
-   **F HR Designation:** Suitable for harsh environments, ensuring durability.
-   **ABB Quality:** Provides reliability and performance you can trust.

With its advanced features and rugged design, the **ABB E4S 4000 PR121 PLI** circuit breaker is a dependable choice for industrial automation and electrical protection. Invest in the reliability and performance that **ABB** offers. Ensure the safety and efficiency of your industrial systems with this top-of-the-line circuit breaker. Contact Ram Automations at [info@ramautomations.com](mailto:info@ramautomations.com) for more information.

## Details

- **Price:** 999.0 USD
- **Vendor:** ABB
- **Type:** Industrial Automation > Circuit Breakers > Molded Case Circuit Breakers
- **Tags:** 4-pole, 4000A, ABB E4S, circuit breaker, electrical protection, industrial circuit breaker

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| New / 1SDA055536R1 | 999.00 USD | In stock |

## Images

- ABB E4S 4000 PR121 PLI 4000A 4p F HR Circuit Breaker-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/abb-e4s-4000-pr121-pli)
> Updated: 2026-09-18