# ABB E4H 4000 PR121 PLI Circuit Breaker 4000A 3 Pole

Discover robust electrical protection with the **ABB E4H 4000 PR121 PLI** circuit breaker. Engineered for demanding industrial automation and marine applications this **4000A 3 pole** device ensures reliable performance and safety for critical systems. Its advanced MP technology offers superior operational efficiency and peace of mind. Trust in the quality and innovation of **ABB** for your most essential power distribution needs.

This high-performance circuit breaker, identified by **part number 1SDA056864R1**, is a key component in modern control systems. Designed for extensive use in industrial automation settings the **E4H 4000 PR121 PLI** provides exceptional current interruption capabilities. Its **4000A** rating and **3 phase** configuration make it ideal for managing heavy electrical loads ensuring balanced power distribution and protecting sensitive equipment from overcurrents and short circuits.

-   High-performance **ABB E4H 4000 PR121 PLI** for industrial automation.
-   Robust **4000A** current rating and **3 pole** configuration.
-   Advanced MP technology for enhanced efficiency and reliability.
-   Durable construction ensuring long operational life.
-   Designed for secure and dependable power protection.

The **ABB E4H 4000 PR121 PLI** is built to meet stringent industry standards delivering dependable protection for your electrical infrastructure. Its advanced design ensures seamless integration into existing automation setups providing safety and operational continuity.

## Details

- **Price:** 999.0 USD
- **Vendor:** ABB
- **Type:** Industrial Automation > Circuit Protection > Circuit Breakers
- **Tags:** 1SDA056864R1, 3 pole circuit breaker, 4000A circuit breaker, ABB circuit breaker, ABB E4H 4000 PR121 PLI, electrical protection, industrial automation, MP technology

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| New / 1SDA056864R1 | 999.00 USD | In stock |

## Images

- ABB E4H 4000 PR121 PLI Circuit Breaker 4000A 3 Pole-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/abb-e4h-4000-pr121-pli-4000a-3p)
> Updated: 2026-09-18