# E1N1250 PR121 P-LSI Circuit Breaker 1250A 4-Pole ABB

The **E1N1250 PR121 P-LSI** circuit breaker, with its 1250A rating and 4-pole configuration, is engineered to safeguard electrical systems in industrial and commercial environments. This ABB product, identified by code 1SDA055737R1, provides robust protection against overloads and short circuits, ensuring the continuous and safe operation of your installations. It's a critical component for power distribution and machinery protection, offering peace of mind and operational efficiency.

This circuit breaker integrates advanced technology and high-quality materials to deliver exceptional performance in demanding settings. Its design facilitates easy installation and a compact footprint, making it suitable for a wide array of applications. The **E1N1250 PR121 P-LSI** boasts a high breaking capacity, enabling it to swiftly disconnect faulty circuits, thereby preventing equipment damage and ensuring personnel safety. For use in automation system, the **1250A** current rating is perfect.

Key Features:

-   **High Current Rating:** Handles up to 1250A, suitable for demanding applications.
-   **4-Pole Design:** Provides comprehensive protection for three-phase systems.
-   **Overload and Short Circuit Protection:** Ensures safety and prevents damage.
-   **Easy Installation:** Designed for quick and straightforward setup.
-   **ABB Quality:** Built to meet the highest standards of reliability and performance.

Specifications:

Current Rating: 1250A

Poles: 4

Series: E1N

Model: PR121 P-LSI

Whether you're upgrading an existing system or implementing a new one, the **E1N1250 PR121 P-LSI** circuit breaker from **ABB** offers a dependable and cost-effective solution. Ensure the safety and efficiency of your electrical systems by integrating this high-performance circuit breaker into your automation setup. For any inquiry, contact us at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** ABB
- **Type:** Electrical Components > Circuit Breakers > Molded Case Circuit Breakers
- **Tags:** 1250A, 1SDA055737R1, 4-pole, ABB, circuit breaker, E1N1250 PR121, electrical protection, industrial automation, machinery protection, power distribution

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| New / 1SDA055737R1 | 999.00 USD | In stock |

## Images

- E1N1250 PR121 P-LSI Circuit Breaker 1250A 4-Pole ABB-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/e1n1250-pr121-1250a-4p-abb)
> Updated: 2026-10-03