3VA5320-7EF31-0AA0 - 200A Class CJAS 3-Pole Circuit Breaker

3VA5320-7EF31-0AA0 - 200A Class CJAS 3-Pole Circuit Breaker

If you’re running a facility where downtime isn’t an option, the Siemens 3VA5320-7EF31-0AA0 circuit breaker is the kind of component you want in your panel. Built for real-world electrical demands, this 200A, 3-pole breaker from the 3VA5 series delivers dependable protection against overloads and short circuits—without overcomplicating your setup. It’s designed for professionals who need consistent performance, clean integration, and the flexibility to fine-tune protection settings as systems evolve. In short, it does its job quietly, reliably, and exactly when it matters most.

What makes this breaker stand out is its thermal-magnetic trip unit (TM240), which provides long-term overload protection and fast-acting short-circuit response. You’re not locked into rigid settings either—the adjustable overload range (160A to 200A) lets you dial things in based on your actual load conditions. Pair that with a strong Class C interrupting capability and a 400A frame, and you’ve got a breaker that’s ready for demanding commercial and industrial applications. It’s compact enough to save space on your panel, yet powerful enough to withstand serious electrical stress.

Key Features and Benefits

• 200 Amp, 3-Pole Design – Built for three-phase systems in commercial and industrial environments
• Thermal Magnetic Trip Unit (TM240) – Provides reliable overload and instantaneous short-circuit protection
• Adjustable Overload Setting (160A–200A) – Match protection to your system instead of settling for fixed limits
• High Short-Circuit Protection (Ii: 5–10x In) – Reacts quickly to fault conditions to minimize damage
• Class C Interrupting Rating (CJAS) – Suitable for higher fault current applications
• 400A Frame Size (3VA5 Platform) – Offers flexibility for system upgrades and compatibility
• Space-Efficient Design – Compact dimensions make panel layout easier

Technical Specifications

• Part Number: 3VA5320-7EF31-0AA0
  
• Series: Siemens 3VA5
  
• Type: Thermal Magnetic Circuit Breaker (TM240, ATAM)
  
• Poles: 3
  
• Amperage Rating: 200A
  
• Frame Size: 400A
  
• Overload Protection (Ir): Adjustable from 160A to 200A
  
• Short-Circuit Protection (Ii): 5–10x rated current
  
• Interrupting Class: C (CJAS)
  
• Dimensions (H x W x D): 9.8" x 6.3" x 5.9"
  
• Lugs: Not included
  

Material Compliance and Certifications

This Siemens 3VA5 circuit breaker is manufactured to meet UL standards for molded case circuit breakers, ensuring it aligns with widely accepted safety and performance requirements in North America. That means you can install it with confidence in systems where compliance and reliability go hand in hand.

Where It Works Best

You’ll typically find this breaker in commercial buildings, industrial plants, distribution panels, and equipment control systems where stable, predictable protection is critical. It’s a strong fit for applications such as HVAC systems, manufacturing lines, and power distribution systems that experience varying loads but still require consistent protection.