3VA4120-5ED34-0AA0 - 20Amp Circuit Breaker

3VA4120-5ED34-0AA0  -  20Amp Circuit Breaker

The Siemens 3VA4120-5ED34-0AA0 molded case circuit breaker is built for reliable, day-in and day-out protection in commercial and industrial power systems. Part of the 3VA4 series, this breaker gives you a solid balance of compact size and high fault protection, with a 35 kA interrupting rating at 480V—more than enough for many demanding applications. At its core is a thermal-magnetic trip unit (TM210), designed to handle both overloads and short circuits without complication. The 20A fixed rating keeps things simple and predictable, while the instantaneous trip function kicks in quickly when a fault hits. In real-world terms, that means less risk to your equipment and fewer surprises when something goes wrong. This is the kind of breaker you install once and don’t have to think about again—exactly what you want when uptime matters.

Key Features and Benefits

• 35 kA Interrupting Capacity @ 480V
  Handles high fault conditions and helps protect downstream equipment
• Thermal-Magnetic Trip Unit (TM210)
  Straightforward, dependable protection for both overloads and short circuits
• Fixed 20 Amp Rating
  No guesswork—consistent performance for dedicated circuits
• Fast Short-Circuit Response (Ii = 15x In)
  Trips quickly under fault conditions to limit damage
• 3-Pole Design
  Ideal for standard three-phase systems
• Compact Frame Size (125 Frame)
  Fits easily into panelboards and switchgear without wasting space

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: 3VA4120-5ED34-0AA0
  
• Breaker Type: Molded Case Circuit Breaker
  
• Series: 3VA4
  
• Poles: 3
  
• Rated Current: 20A
  
• Overload Protection (Ir): Fixed at 20A
  
• Instantaneous Trip (Ii): 15 × In
  
• Interrupting Rating: 35 kA @ 480V
  
• Trip Unit: TM210 Thermal-Magnetic
  
• Dimensions: 160 x 135 x 88 mm
  
• Weight: 0.743 kg

Material Compliance and Certifications

• Complies with RoHS requirements
• Meets WEEE take-back obligations
• REACH compliant (includes required substance disclosures)
• Classified under EAR99 for export

Built to meet current environmental and regulatory standards, making it suitable for modern installations and compliance-driven projects.

Where It Works Best

• You’ll mainly used this:
• Commercial electrical distribution panels
• Industrial equipment and control panels
• OEM machinery builds
• Three-phase power systems requiring dependable line protection