3VA5325-5EC31-0AA0 - 250A Class MJAS 3-Pole Circuit Breaker

3VA5325-5EC31-0AA0 - 250A Class MJAS 3-Pole Circuit Breaker

If you're responsible for keeping power systems running smoothly, you already know one weak link can take everything down. That's where the Siemens 3VA5325-5EC31-0AA0 circuit breaker earns its place. Built for consistency and dependable protection, this 250A, 3-pole breaker is designed to handle real-world electrical demands without unnecessary complexity. At its core, this model uses a thermal magnetic trip unit (TM230), which means it reacts exactly when it should—protecting against overloads and short circuits without constant adjustment or guesswork. The fixed settings are intentional. You install it, and it does its job—reliably, predictably, and without fuss. Housed in a 400A frame, it gives you added durability and thermal stability, even under sustained loads. And with a 35 kA interrupting capacity at 480V AC, it's ready to handle fault conditions before they become expensive problems. This is the kind of component professionals choose when downtime isn't acceptable.

Key Features and Benefits

• Consistent 250A Performance: Designed to handle demanding electrical loads without fluctuation
• Thermal Magnetic Trip Unit (TM230): Delivers fast, accurate response to overloads and short circuits.
• Set-It-and-Forget-It Protection: Fixed overload (Ir=250A) and short-circuit settings (Ii = 5–10x) reduce setup time and errors
• High Interrupting Capacity: Rated at 35 kA @ 480V AC for handling serious fault conditions
• 3-Pole Design: Ideal for three-phase power distribution systems
• 400A Frame Strength: Built with extra capacity for improved heat management and longevity
• Space-Efficient Design: Fits neatly into panel configurations without wasting valuable space.
• Purpose-Built for Line Protection: Helps safeguard wiring and connected equipment

Technical Specifications

• Part Number: 3VA5325-5EC31-0AA0
  
• Series: Siemens 3VA5
  
• Breaker Type: 3VA53 Thermal Magnetic
  
• Amperage: 250A
  
• Poles: 3
  
• Frame Size: 400A
  
• Interrupting Rating: 35 kA @ 480V AC
  
• Trip Unit: TM230
  
• Overload Protection (Ir): 250A (fixed)
  
• Short-Circuit Protection (Ii): 5–10x rated current
  
• Dimensions: 9.8" H x 6.3" W x 5.9" D
  
• Lugs: Not included
  

Material Compliance and Certifications

• UL Listed: Meets recognized U.S. safety standards for electrical protection.
• Manufactured to Industry Standards: Designed for safe, reliable integration into commercial and industrial systems
• Quality Internal Components: Built to maintain performance over time under normal operating conditions

Where It Works Best

• Commercial buildings and tenant improvements
• Industrial facilities and manufacturing lines
• Electrical distribution panels
• Equipment protection in demanding applications
• Retrofit projects needing dependable, fixed protection settings