# ABB E4V 4000 PR121 PLI Circuit Breaker 4000A 3 Pole - Industrial Protection

Ensure robust electrical protection with the **ABB E4V 4000 PR121 PLI** circuit breaker, a high-performance solution for demanding industrial automation systems. This **ABB circuit breaker** offers exceptional reliability and durability, engineered to safeguard your critical infrastructure. Its advanced design makes it an ideal choice for applications requiring superior electrical safety and operational continuity. The **ABB part number 1SDA056928R1** signifies a commitment to quality and performance.

Engineered for heavy-duty industrial use, the **E4V 4000 PR121 PLI** features a substantial **4000A current rating** and a versatile 3-pole configuration. This **ABB MP** device is designed to manage large electrical loads efficiently, providing essential protection within complex control systems and automation setups. Its precise tripping mechanisms ensure that electrical faults are quickly isolated, minimizing downtime and preventing equipment damage, making it a key component for any modern industrial electrical installation. Users often search for **ABB circuit protection** solutions that offer this level of performance.

-   High-performance **ABB circuit breaker** for industrial applications.
-   Robust **4000A current rating** capable of handling significant electrical loads.
-   Durable **3-pole configuration** for flexible integration into various systems.
-   Reliable protection engineered by **MP ABB** ensuring operational safety.
-   Features the specific part number **1SDA056928R1** for easy identification.

This ABB circuit breaker is designed for industrial automation and control systems. Its technical capabilities ensure efficient operation and safety. It is built to withstand demanding environments, offering long-lasting performance and peace of mind for your electrical infrastructure. We recommend this for applications needing reliable power distribution and fault interruption.

Invest in the proven reliability of **ABB** for your critical electrical systems. The **E4V 4000 PR121 PLI**, with part number **1SDA056928R1**, represents a smart choice for industrial automation needs. Contact us today to secure this essential component for your operations.

## Details

- **Price:** 999.0 USD
- **Vendor:** ABB
- **Type:** Industrial Automation > Circuit Protection > Circuit Breakers
- **Tags:** 1SDA056928R1, 3 pole breaker, 4000A circuit breaker, ABB circuit breaker, ABB circuit protection, ABB E4V 4000 PR121 PLI, electrical protection, industrial automation, MP ABB, Ram Automations

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| New / 1SDA056928R1 | 999.00 USD | In stock |

## Images

- ABB E4V 4000 PR121 PLI Circuit Breaker 4000A 3 Pole - Industrial Protection-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/abb-e4v-4000-pr121-pli-1sda056928r1)
> Updated: 2026-10-02