# ABB E3H 800 PR121 P LSI 800A 4-Pole Circuit Breaker

Protect your electrical systems with the robust **ABB E3H 800 PR121 P LSI** circuit breaker, designed for demanding industrial applications. This 800A, 4-pole circuit breaker ensures reliable protection against overloads and short circuits, safeguarding your valuable equipment. Built for efficiency and durability, it offers peace of mind in maintaining a safe and secure electrical infrastructure.

The **ABB E3H 800 PR121 P LSI** utilizes advanced technology to provide superior protection. This circuit breaker is engineered to meet the rigorous demands of modern industrial environments. It provides reliable and precise performance, ensuring the longevity and safety of your electrical systems. Its design facilitates easy installation and maintenance, making it a practical choice for various applications.

Key Features:

-   **800A Current Rating**: Provides ample protection for high-power electrical systems.
-   **4-Pole Configuration**: Offers enhanced protection and versatility in various setups.
-   **PR121 P LSI Trip Unit**: Delivers advanced protection features, including LSI (Long-Short-Instantaneous) trip functions.
-   **MP Trip Unit**: Ensures precise and reliable operation.
-   **ABB Quality**: Built with ABB's renowned quality and reliability.

Specifications:

-   Current Rating: 800A
-   Poles: 4
-   Trip Unit: PR121 P LSI, MP

Choose the **ABB E3H 800 PR121 P LSI** circuit breaker for dependable performance and lasting protection in your industrial or automation systems. Trust in ABB's legacy of quality to keep your operations running smoothly. For any inquiries, please 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:** 4-pole breaker, 800A circuit breaker, ABB circuit protection, ABB E3H, industrial electrical protection, PR121 P LSI

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| New / 1SDA056361R1 | 999.00 USD | In stock |

## Images

- ABB E3H 800 PR121 P LSI 800A 4-Pole Circuit Breaker-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/abb-e3h-800-pr121-p-lsi-800a)
> Updated: 2026-09-18