# E1B800W PR121-LSI In800A 4P Circuit Breaker - ABB

The **ABB E1B800W PR121-LSI In800A 4P 1SDA055625R1 circuit breaker** is a critical component for safeguarding electrical systems. Designed for industrial and commercial applications, this circuit breaker ensures the safety and efficiency of power distribution networks. With a robust design and advanced protection features, it provides reliable performance under demanding conditions.

This **ABB circuit breaker** is engineered to handle substantial electrical loads, offering dependable protection against overloads and short circuits. Its design incorporates advanced technology, including earth fault and phase unbalance protection, to prevent equipment damage and maintain an uninterrupted power supply. This circuit breaker is perfect for facilities requiring dependable electrical protection, such as manufacturing plants and commercial buildings.

-   **800A Current Rating:** Handles high current loads efficiently.
-   **PR121-LSI Technology:** Offers advanced protection features.
-   **4-Pole Configuration:** Provides comprehensive circuit protection.
-   **Durable Construction:** Ensures long-term reliability in harsh environments.
-   **Easy Installation:** Designed for quick and straightforward setup.

The **ABB E1B800W PR121-LSI In800A 4P 1SDA055625R1** circuit breaker provides superior protection and performance for your electrical systems. It ensures the efficient operation of your equipment, minimizing downtime and maintenance costs. Trust in the quality and reliability of **ABB** products to protect your valuable assets. Ensure your industrial or automation systems are protected by this high-quality circuit breaker. For any inquiries, please contact us at [info@ramautomations.com](mailto:info@ramautomations.com)

## Details

- **Price:** 999.0 USD
- **Vendor:** ABB
- **Type:** Electrical Components > Circuit Breakers > Industrial Circuit Breakers
- **Tags:** 800A circuit breaker, ABB, circuit breaker, E1B800W, electrical protection, industrial automation

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| New / 1SDA055625R1 | 999.00 USD | In stock |

## Images

- E1B800W PR121-LSI In800A 4P Circuit Breaker - ABB-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/e1b800w-pr121-lsi-in800a-4p-abb)
> Updated: 2026-10-03