# ABB E3S 2000 PR121-P-LSIG In2000A 4p W MP Circuit Breaker 1SDA056266R1

Introducing the ABB E3S 2000 PR121-P-LSIG an advanced circuit breaker designed for robust industrial automation and marine applications. This high-performance unit, with the part number **1SDA056266R1**, ensures reliable power distribution and protection. Its advanced LSIG trip unit provides enhanced safety and operational continuity in demanding environments. For those seeking dependable circuit protection solutions, the **ABB E3S 2000 PR121-P-LSIG** is a premier choice.

Engineered for superior performance, the **ABB E3S 2000 PR121-P-LSIG In2000A 4p W MP** integrates seamlessly into complex control systems. Its current rating of **In2000A** and four-pole configuration make it suitable for a wide range of electrical installations. This circuit breaker is built to withstand harsh conditions, offering exceptional durability and efficiency. It is an essential component for maintaining stable power flow and safeguarding equipment in critical industrial and marine settings. Is this the right circuit breaker for your specific automation needs

-   Superior protection with LSIG trip unit functionality
-   High current capacity of In2000A for demanding applications
-   Durable construction for extended operational life in industrial environments
-   Designed for seamless integration into modern automation and control systems
-   Ensures reliable power distribution and equipment safety

## Specifications

Model PR121-P-LSIG  
Current Rating In2000A  
Poles 4  
Type W MP

Trust in the quality and innovation of ABB for your critical power protection requirements. The **ABB E3S 2000 PR121-P-LSIG** offers unmatched reliability and performance for industrial automation and marine systems. Explore our range and secure your power infrastructure today.

## Details

- **Price:** 999.0 USD
- **Vendor:** ABB
- **Type:** Electrical > Circuit Breakers > Molded Case Circuit Breakers
- **Tags:** 1SDA056266R1, ABB, circuit breaker, E3S 2000, industrial automation, marine electrical, Molded Case Circuit Breaker, power distribution, PR121-P-LSIG

## Variants

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

## Images

- ABB E3S 2000 PR121-P-LSIG In2000A 4p W MP Circuit Breaker 1SDA056266R1-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/abb-e3s-2000-pr121-p-lsig-in2000a-4p-w-mp)
> Updated: 2026-09-21