# ABB E1B 800 PR121/P-LSI Circuit Breaker 1SDA055617R1

Introducing the robust **ABB E1B 800 PR121/P-LSI** circuit breaker, part number **1SDA055617R1**. This essential component is engineered for reliable performance in demanding industrial automation environments. Designed for superior protection and control, the ABB E1B 800 offers advanced circuit interruption capabilities, ensuring the safety and operational integrity of your electrical systems. Its precise engineering makes it a trusted choice for safeguarding critical machinery and power distribution networks.

The **ABB E1B 800 PR121/P-LSI** circuit breaker is built to meet stringent industrial standards. It features a high current rating of 800A and a 3-pole configuration, making it suitable for heavy-duty applications. This model integrates advanced protection functions, essential for modern control systems, providing efficient fault detection and response. For professionals seeking dependable circuit protection solutions for their automation projects, the **ABB E1B 800 PR121/P-LSI**, **1SDA055617R1**, represents a commitment to quality and performance from ABB.

-   High-performance circuit protection for industrial automation
-   Robust construction for durability and long service life
-   Advanced tripping mechanisms for enhanced safety
-   Ensures operational continuity and equipment protection
-   Specifically designed for heavy-duty current loads

### Specifications

Brand ABB  
Model E1B 800 PR121/P-LSI  
Part Number 1SDA055617R1  
Current Rating 800A  
Poles 3

Choose the **ABB E1B 800 PR121/P-LSI** circuit breaker, **1SDA055617R1**, for unparalleled reliability in your industrial automation setup. Trust in ABB's legacy of innovation and quality to protect your valuable assets and maintain optimal system performance. Contact us today to secure this critical component for your operations.

## Details

- **Price:** 999.0 USD
- **Vendor:** ABB
- **Type:** Industrial Automation > Circuit Protection > Circuit Breakers
- **Tags:** 1SDA055617R1, ABB circuit breaker, ABB E1B 800, electrical protection, heavy duty breaker, industrial automation, PR121/P-LSI

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 999.00 USD | In stock |

## Images

- ABB E1B 800 PR121/P-LSI Circuit Breaker 1SDA055617R1-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/abb-e1b-800-pr121-p-lsi-1sda055617r1)
> Updated: 2026-09-28