# ABB E4H 4000 PR121 PLI 4000A Circuit Breaker – Industrial Grade

The **E4H 4000 PR121 PLI** circuit breaker from ABB is engineered for superior performance in demanding industrial environments. This 3-pole circuit breaker, with a 4000A current rating, provides reliable protection against overloads and short circuits. It's a critical component for ensuring the safety and efficiency of your electrical systems.

This **ABB** circuit breaker is designed for heavy-duty applications, offering robust protection and long-lasting durability. The **PR121 PLI** trip unit enhances operational safety. It is ideal for use in industrial settings where consistent and reliable power distribution is essential. Investing in this **circuit breaker** means investing in the longevity and safety of your electrical infrastructure.

Key Features:

-   **4000A Current Rating** for handling heavy electrical loads.
-   **3-Pole Configuration** suitable for various industrial applications.
-   **HR Technology** ensures efficient and safe operation.
-   **ABB Quality** delivers reliability and performance.
-   Compact design for easy installation and maintenance.

Specifications:

-   Model: E4H 4000 PR121 PLI
-   Current Rating: 4000A
-   Poles: 3
-   Brand: ABB

Choose the **E4H 4000 PR121 PLI** circuit breaker for dependable protection and enhanced operational efficiency. Trust **ABB**'s expertise to safeguard your industrial and automation systems. For further assistance, contact us at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** ABB
- **Type:** Industrial Automation > Circuit Breakers > Molded Case Circuit Breakers
- **Tags:** 3-pole circuit breaker, 4000A, ABB, circuit breaker, E4H 4000 PR121 PLI, electrical protection, industrial automation

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| New / 1SDA056848R1 | 999.00 USD | In stock |

## Images

- ABB E4H 4000 PR121 PLI 4000A Circuit Breaker – Industrial Grade-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/abb-e4h-4000-pr121-pli)
> Updated: 2026-09-18