3VA5222-6ED31-0AA0 - HFAS 225 Amp Circuit Breaker

3VA5222-6ED31-0AA0 - HFAS 225 Amp Circuit Breaker

If you’re replacing a 225A 3-pole breaker or setting up a new panel, the Siemens 3VA5222-6ED31-0AA0 is one of those parts that just makes sense. It’s built for standard three-phase systems and handles both overloads and short circuits without needing any extra setup or adjustments. This breaker uses a thermal magnetic trip unit, so it works the way most electricians expect. It’ll carry your load at 225 amps, trip on overload when it needs to, and react instantly if there’s a short circuit. The instantaneous trip is set at 10 times the rated current, which is typical for protecting equipment without nuisance tripping. With a 35kA interrupting rating at 480V, it’s suitable for a wide range of commercial and light industrial applications. Whether it’s going into a distribution panel, feeding HVAC equipment, or replacing an existing Siemens unit, it’s a straightforward fit. It’s also part of the 3VA5 series, so the footprint is compact and modern—helpful if you’re working in a tight panel or upgrading older gear.

Key Features and Benefits

• 225 Amp circuit breaker for reliable load handling
• 3-pole design for three-phase electrical systems
• Thermal magnetic trip unit (TM210) – simple, proven protection
• 35kA AIC rating at 480V for higher fault current capacity
• Fixed overload protection (Ir = 225A) – no field adjustments needed
• Instantaneous trip at 10x In for fast short-circuit response
• Compact 3VA52 frame – easier to fit in existing panels
• Good choice for replacement or new installations

Technical Specifications

• Manufacturer: Siemens
  
• Part Number: 3VA5222-6ED31-0AA0
  
• Frame Type: 3VA52
  
• Poles: 3
  
• Amperage: 225A
  
• Voltage Rating: Up to 480V
  
• Interrupting Capacity: 35kA @ 480V
  
• Trip Unit: Thermal Magnetic (TM210, FTFM)
  
• Overload Protection (Ir): 225A (fixed)
  
• Short-Circuit Protection (Ii): 10 × In
  
• Dimensions: 9.65" H × 6.3" W × 5.9" D
  

Material Compliance and Certifications

• UL Listed for use in North American electrical systems
• Built to meet standard commercial and industrial safety requirements
• Designed for safe interruption of fault currents in typical applications

Where It Works Best

• This breaker is commonly used in:
• Commercial electrical panels
• Industrial equipment and machinery
• HVAC systems and motor loads
• Distribution boards and switchgear
• Direct replacements for existing 225A Siemens breakers