3VA4120-4ED54-0AA0 - 20Amp Circuit Breaker

3VA4120-4ED54-0AA0 åÊ- åÊ20Amp Circuit Breaker

The Siemens 3VA4120-4ED54-0AA0 Molded Case Circuit Breaker offers robust, reliable protection for your electrical systems, making it an essential component for both industrial and commercial applications. With a 25 kA breaking capacity at 277V, this 1-pole circuit breaker is designed to safeguard circuits from overload and short-circuit conditions, providing line protection that enhances system longevity and operational safety. The breaker‰۪s 20A rated current (In = 20A) and overload protection (Ir = 20A), paired with permanently set short-circuit protection (Ii = 15 x In), ensures that it responds to faults quickly and effectively.

Key Features and Benefits

• Reliable Overload Protection: Features 20A overload protection (Ir = 20A) for safeguarding electrical systems against excessive current, preventing potential damage to wiring and connected devices.
• Permanent Short-Circuit Protection: Equipped with permanently set short-circuit protection (Ii = 15 x In), this breaker requires no further adjustments, making it convenient for installation and long-term use.
• Terminal Connection: The breaker utilizes a terminal connection for enhanced reliability and ease of installation.

Technical Specifications

• Frame Size: 125A UL
  
• Breaking Capacity: 25 kA at 277V
  
• Poles: 1-pole
  
• Rated Current (In): 20A
  
• Overload Protection (Ir): 20A
  
• Short-Circuit Protection (Ii): 15 x In (fixed)
  
• Current Limiting Class: S
  
• Voltage Rating: 277V
• Weight: 0.426 kg
  
• Dimensions (Packaging): 135 mm x 168 mm x 58 mm
  

Material Compliance and Certifications

• RoHS Compliant: Meets the RoHS Directive (since January 1, 2017) for material restrictions, supporting environmental responsibility in manufacturing.
• UL Certified: Complies with UL 489 standards, ensuring the breaker is suitable for use in North American electrical systems.

Suitability

• The Siemens 3VA4120-4ED54-0AA0 is designed for a variety of commercial and industrial applications where electrical protection is critical. Whether you're installing it in control panels, distribution boards, or electrical systems, this breaker offers the reliability and safety needed for everyday operations. Its compact design, high breaking capacity, and overload protection make it an excellent solution for systems that require precise fault protection in confined spaces. The breaker‰۪s terminal connection ensures a secure and straightforward installation process, making it ideal for professionals and technicians working in both new installations and system upgrades.
  

In summary, the Siemens 3VA4120-4ED54-0AA0 Molded Case Circuit Breaker provides exceptional protection with its high breaking capacity, overload and short-circuit protection, and UL compliance. It's a dependable and versatile choice for ensuring the safety of electrical circuits across various industries.