3VA5322-6EC31-0AA0 - 225A Class HJAS 3-Pole Circuit Breaker

3VA5322-6EC31-0AA0 - 225A Class HJAS 3-Pole Circuit Breaker

If you need a 225-amp 3-pole circuit breaker that you can install and trust, the Siemens 3VA5322-6EC31-0AA0 checks all the right boxes. It’s part of Siemens’ 3VA5 line, which is widely used in commercial and industrial setups where equipment protection isn’t optional—it’s critical. This breaker uses a thermal magnetic trip unit (TM230), meaning it reacts to both overloads and short circuits in a simple, proven way—no complicated programming or setup. The overload protection is fixed at 225A, so once it’s in place, it behaves exactly how you expect. At the same time, the adjustable instantaneous trip gives you some flexibility when dealing with fault conditions. Bottom line: it’s built for electricians, contractors, and maintenance teams who want something dependable without overthinking it.

Key Features and Benefits

• 225 Amp rating for reliable power distribution
• 3-pole design for standard three-phase systems
• Thermal magnetic trip (TM230) – handles overloads and short circuits in one unit
• 65 kA interrupting capacity @ 480V AC – ready for high fault conditions
• Fixed overload protection (Ir = 225A) – no guesswork during setup
• Adjustable instantaneous trip (5–10x In) – helps fine-tune short-circuit response
• Compact 3VA5 frame – fits well in modern panels and switchgear
• Solid Siemens build quality – designed for long-term, consistent use
  

Technical Specifications

• Manufacturer: Siemens
  
• Part Number: 3VA5322-6EC31-0AA0
  
• Series: 3VA5
  
• Frame Size: 400A
  
• Amperage Rating: 225A
  
• Poles: 3
  
• Trip Type: Thermal Magnetic (TM230)
  
• Overload Protection (Ir): Fixed at 225A
  
• Instantaneous Trip (Ii): Adjustable, 5–10x In
  
• Interrupting Rating: 65 kA @ 480V AC
  
• Dimensions:
  • Height: 9.8"
  • Width: 6.3"
  • Depth: 5.9"
• Lugs: Not included
  

Material Compliance and Certifications

• Industry Standards: This Siemens molded-case circuit breaker meets UL standards and is suitable for use in systems requiring safety and code compliance. It aligns with widely accepted electrical protection practices used across commercial and industrial applications.
• UL Standards: This Siemens molded-case circuit breaker meets UL standards and is suitable for use in systems requiring safety and code compliance.
  

Where It Works Best

• Commercial buildings and office power distribution
• Industrial panels and machinery protection
• Warehouses and manufacturing facilities
• Three-phase electrical systems
• Replacement jobs where specs need to match exactly