3VA5320-7EC31-0AA0 - 200A Class CJAS 3-Pole Circuit Breaker

3VA5320-7EC31-0AA0 - 200A Class CJAS 3-Pole Circuit Breaker

The Siemens 3VA5320-7EC31-0AA0 200A 3-pole circuit breaker is a solid choice when you need dependable protection without overcomplicating your setup. Built as part of Siemens’ 3VA5 line, this breaker is designed to handle real-world electrical demands—protecting your system from overloads and short circuits so you can keep things running without constant worry. With a 400A frame and a 200 amp rating, it strikes a nice balance between capacity and space. It’s compact enough to fit into tighter panel configurations, but still delivers the kind of performance you’d expect in commercial and industrial environments. The thermal magnetic trip unit does exactly what it’s supposed to do—responds to overloads over time and reacts instantly when there’s a fault. No unnecessary complexity, just straightforward protection that works. Another thing worth noting is its interrupting capability. With up to 100 kA at 480V AC, this breaker is built to handle high fault conditions, making it a reliable option for more demanding systems where safety and uptime matter.

Key Features and Benefits

• Thermal magnetic trip unit for reliable overload and short-circuit protection
• 200 amp rating suited for commercial and industrial applications
• High interrupting capacity (up to 100 kA @ 480V AC)
• 3-pole design for full three-phase protection
• Fixed overload setting at 200A for consistent performance
• Adjustable instantaneous trip (5–10x In) for added flexibility
• Compact 400A frame saves panel space
• Built with Siemens’ proven engineering

Technical Specifications

• Part Number: 3VA5320-7EC31-0AA0
  
• Manufacturer: Siemens
  
• Series / Type: 3VA53 (3VA5 family)
  
• Poles: 3
  
• Amperage: 200A
  
• Frame Size: 400A
  
• Trip Unit: TM230 (Thermal Magnetic)
  
• Overload Protection (Ir): 200A (fixed)
  
• Short-Circuit Protection (Ii): 5–10x In (adjustable)
  
• Interrupting Rating: 100 kA @ 480V AC
  
• Dimensions: 9.8" H x 6.3" W x 5.9" D
  
• Lugs: Not included
  

Material Compliance and Certifications

• This breaker is UL listed, meaning it meets widely accepted safety standards for low-voltage electrical equipment. That’s important when you’re working in environments where compliance and reliability aren’t optional. As outlined in search quality standards, accurate and trustworthy product information is especially critical for equipment tied to safety and financial risk.

Where It Works Best

• This model is commonly used in commercial buildings, industrial facilities, and equipment panels where consistent power protection is needed. It’s a good fit for:
• Distribution panels
• Motor protection
• HVAC systems
• Manufacturing equipment
• Infrastructure and facility upgrades