ABB 2500A Air Circuit Breaker E3N2500 PR122/DC In=2500A 3p F VR

Comprehensive Technical Overview

1. Introduction

ABB’s E3N2500 PR122/DC In=2500A 3p F VR is a high-performance air circuit breaker (ACB) designed for DC applications, offering superior protection, reliability, and smart monitoring capabilities. With a rated current of 2500A, this three-pole, fixed-mounted (F), and vertically rear-connected (VR) breaker is ideal for industrial, renewable energy, and traction power systems.

This document provides a detailed technical analysis, including key features, product advantages, compliance certifications, and environmental considerations, presented in a structured format with a comparison table.

2. Product Overview

2.1 Key Specifications

3. Functional Features of ABB E3N2500 PR122/DC

3.1 Advanced DC Protection (PR122/DC Trip Unit)

• Precision Protection for DC Systems – Optimized for solar PV, battery storage, and traction applications.

• Adjustable Protection Settings – Configurable thresholds for overcurrent, short-circuit, and ground faults.

• Real-Time Monitoring – Measures current, voltage, power, and energy consumption.

• Selective Coordination – Ensures minimal downtime in case of faults.

3.2 High Breaking Capacity for DC Applications

• Icu = 60 kA @ 500V DC / 40 kA @ 750V DC – Ensures safe interruption of high fault currents.

• Robust Arc Extinguishing Technology – Prevents damage to downstream equipment.

3.3 Fixed & Compact Design (3p F VR)

• Fixed Version (F) – Suitable for panel and switchgear installations.

• Vertical Rear (VR) Terminals – Facilitates easy cable connections in confined spaces.

3.4 Smart Communication & Connectivity

• Optional Communication Modules (Modbus, Profibus, Ethernet) for remote monitoring and control.

• Integration with SCADA & Energy Management Systems for predictive maintenance.

3.5 High Mechanical & Electrical Durability

• 20,000 mechanical operations – Ensures long service life.

• 7,000 electrical cycles at 1000V DC – Reliable performance in harsh conditions.

4. Product Advantages of ABB E3N2500 PR122/DC

5. Environmental & Compliance Information

5.1 EcoSolutions Compliance

• RoHS (2011/65/EU & Amendment 2015/863) – Compliant with restriction of hazardous substances.

• REACH Declaration – Ensures safe chemical usage in manufacturing.

• TSCA (Toxic Substances Control Act) – Compliant with US environmental regulations.

5.2 Product Environmental Information

• WEEE Category 5 (Small Equipment ≤50cm) – Recyclable design.

• Low Power Loss (338W) – Energy-efficient operation.

6. Applications

The ABB E3N2500 PR122/DC is ideal for:
✔ Solar PV & Battery Storage Systems – Protects DC distribution in renewable energy plants.
✔ Railway & Traction Power – Ensures reliable DC power control in metro and rail networks.
✔ Industrial DC Power Distribution – Used in data centers, mining, and heavy industries.
✔ Marine & Offshore Applications – Corrosion-resistant design for harsh environments.

7. Conclusion

The ABB E3N2500 PR122/DC In=2500A 3p F VR is a high-performance DC air circuit breaker offering advanced protection, smart monitoring, and robust construction. With its PR122/DC trip unit, it ensures precise DC fault detection, while its high breaking capacity (60kA) guarantees system reliability.

Compliant with RoHS, REACH, and TSCA, this breaker is an eco-friendly, durable solution for modern DC power systems.