# ABB E1B 1250 PR121/P-LSI 3p Circuit Breaker 1SDA055649R0001

Introducing the **ABB E1B 1250 PR121/P-LSI 3p W MP** circuit breaker, part number **1SDA055649R0001**. This high-performance device is engineered for robust industrial automation applications, providing reliable electrical protection and control. Its advanced design ensures seamless integration into complex power distribution systems, offering superior safety and operational efficiency for critical infrastructure. The ABB E1B 1250 is a testament to ABB's commitment to quality and innovation in electrical engineering.

Engineered for demanding environments, the **ABB E1B 1250 PR121/P-LSI** features an impressive 1250A current rating and a 3-pole configuration. It is designed to safeguard electrical circuits from overloads and short circuits, making it an indispensable component for industrial automation and control systems. This circuit breaker supports sophisticated protection strategies and ensures the integrity of your electrical installations, providing peace of mind for system operators. For those seeking dependable circuit protection solutions, the **1SDA055649R0001** offers unparalleled performance.

-   **High Current Capacity**: Rated for 1250A, suitable for heavy-duty industrial loads.
-   **Advanced Protection**: Offers LSI protection for enhanced safety and system reliability.
-   **Durable Construction**: Built by ABB to withstand rigorous industrial operating conditions.
-   **Seamless Integration**: Designed for easy incorporation into existing ABB automation and control setups.
-   **3-Pole Configuration**: Ensures effective protection across all phases in three-phase systems.

## Specifications

Current Rating: 1250A  
Poles: 3  
Model: E1B 1250 PR121/P-LSI  
Part Number: 1SDA055649R0001

The **ABB E1B 1250 PR121/P-LSI circuit breaker**, identified by **1SDA055649R0001**, represents a superior choice for industrial automation needs. Its robust design and advanced features ensure dependable operation and long-term value. Trust in ABB's legacy of excellence for your critical power protection requirements. Discover the reliability and performance that professionals demand.

## Details

- **Price:** 999.0 USD
- **Vendor:** ABB
- **Type:** Industrial Automation > Circuit Protection > Circuit Breakers
- **Tags:** 1SDA055649R0001, ABB, ABB circuit breaker, circuit breaker, E1B 1250, electrical protection, industrial automation, PR121/P-LSI

## Variants

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

## Images

- ABB E1B 1250 PR121/P-LSI 3p Circuit Breaker 1SDA055649R0001-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/abb-e1b-1250-pr121-p-lsi-1sda055649r0001)
> Updated: 2026-09-28