3VA5217-7EC31-0AA0 - CFAS 175 Amp Circuit Breaker

3VA5217-7EC31-0AA0 - CFAS 175 Amp Circuit Breaker

The Siemens 3VA5217-7EC31-0AA0 is a 175 amp, 3-pole unit from the 3VA5 series, built for typical commercial and industrial work—panels, equipment, distribution. If you’ve worked with Siemens before, you already know what to expect here. It uses a thermal magnetic trip. That means it handles overloads and short circuits in a way that’s predictable and proven. Nothing fancy to dial in, nothing to babysit. Where this one really stands out is the interrupting rating—100kA at 480V. That gives you a lot more headroom in systems where available fault current is high. You’re not cutting it close. Install it, land your wires, and move on.

Key Features and Benefits

• 100kA interrupting rating at 480V
• 175 amp rating
• 3-pole breaker for three-phase systems
• Thermal magnetic trip unit (TM230)
• Fixed overload at 175A
• Instantaneous trip at 10x rating
• 250 frame size (3VA52 series)
• Compact enough for standard panel layouts
  

Technical Specifications

• Part Number: 3VA5217-7EC31-0AA0
  
• Series: 3VA52
  
• Poles: 3
  
• Amperage: 175A
  
• Voltage: 480V
  
• Interrupting Rating: 100kA @ 480V
  
• Trip Type: Thermal Magnetic (TM230)
  
• Overload (Ir): 175A fixed
  
• Short-Circuit (Ii): 10 × In
  
• Frame: 250
  
• Size: 9.65" H × 6.3" W × 5.9" D
  

Material Compliance and Certifications

• UL Listed
• Built to standard North American electrical requirements
• Siemens-manufactured components
  

Where It Works Best

• You’ll see this used in:
• Commercial electrical panels
• Industrial equipment
• HVAC systems
• Motor loads
• General power distribution
• Anywhere you’ve got decent load and higher available fault current, this fits.