3VA5217-7ED31-0AA0 - CFAS 175 Amp Circuit Breaker

3VA5217-7ED31-0AA0 - CFAS 175 Amp Circuit Breaker

The Siemens 3VA5217-7ED31-0AA0 is the kind of breaker you install and don’t have to think about again. It’s rated at 175 amps and built to handle serious fault conditions, with a 100kA interrupting rating at 480V—so when something goes wrong, it reacts fast and does what it’s supposed to do. This model uses a thermal magnetic trip unit, which is still the go-to choice for a lot of contractors and facility guys because it’s predictable and proven. Overload protection is fixed at 175A, and the instantaneous trip is set at 10 times that. No tweaking, no guesswork—just install it and move on. It’s part of Siemens’ 3VA5 line, and if you’ve worked with these before, you already know the deal: solid build, consistent performance, and no unnecessary complications.

Key Features and Benefits

• High interrupting capacity (100kA @ 480V): for applications where fault current is a real concern
• 175 amp rating: covers a wide range of commercial and industrial loads
• Thermal magnetic trip unit: keeps protection simple and reliable
• 3-pole configuration: for standard three-phase systems
• Fixed settings: mean faster installs and fewer mistakes in the field
• Compact footprint: for easier panel integration
• Built to handle demanding conditions: without overengineering

Technical Specifications

• Manufacturer: Siemens
• Part Number: 3VA5217-7ED31-0AA0
• Series: 3VA52
• Poles: 3
• Amperage: 175A
• Interrupting Rating: 100kA @ 480V
• Trip Type: Thermal Magnetic (TM210)
• Overload Protection (Ir): Fixed at 175A
• Instantaneous Trip (Ii): 10 × In
• Frame Size: 250
• Dimensions:
  • 9.65" H
  • 6.3" W
  • 5.9" D

Material Compliance and Certifications

• UL listed under the Siemens 3VA5 series
• Meets standard U.S. electrical compliance requirements
• Designed for use in commercial and industrial power systems

Where It Works Best

• You’ll typically see this breaker in:
• Commercial buildings and tenant panels
• Industrial equipment and machinery protection
• Facilities with a higher available fault current
• HVAC systems and motor loads
• General three-phase distribution setups