Siemens 3WL1225-2FB66-4GA4-ZK07+R21+T40 3WL series air circuit breaker 3WL2N25 ETU45B/LCD D/3P control voltage: AC/DC220V

1. Product Overview

   The Siemens 3WL series air circuit breakers are designed for applications requiring high performance and reliability in circuit protection. They provide protection against overloads and short circuits in industrial, commercial, and large building installations.

2. Functional Features

   • They offer a range of ampere ratings to suit various load and fault current levels.
   • The breakers feature a robust mechanical structure for long-term durability.
   • Equipped with advanced tripping units that provide selective coordination within the electrical system.
   • The series includes devices with both thermal-magnetic and electronic tripping mechanisms.

3. Technical Specifications

   • Rated Voltage: Typically designed for standard AC voltages found in industrial and commercial power systems.
   • Rated Current: A wide range accommodating different sizes of applications, from small to large.
   • Breaking Capacity: High breaking capacity to handle inrush currents and fault conditions.
   • Tripping Units: Available with various tripping characteristics to meet specific system requirements.

4. Advantages Analysis

   • Selective Tripping: Ensures that only the affected circuit is interrupted, maintaining system integrity.
   • High Breaking Capacity: Safely interrupts high fault currents, reducing damage to connected equipment.
   • Reliability: Proven mechanical and electrical performance in a wide range of conditions.
   • Adjustability: Some models allow for adjustable tripping settings to customize protection.

5. Application Scenarios

   • Industrial processes where motor drives and heavy machinery require reliable protection.
   • Commercial buildings for power distribution and ensuring the continuity of critical systems.
   • Power generation and utilities for protection of transformers and generators.
   • Infrastructure projects, including transportation systems and water treatment plants.

The Siemens 3WL series air circuit breakers are a symbol of quality and safety in electrical protection, offering a comprehensive solution for applications demanding high standards of reliability and performance.