3VA5212-6ED31-0AA0 - HFAS 125 Amp Circuit Breaker

3VA5212-6ED31-0AA0 - HFAS 125 Amp Circuit Breaker

The Siemens 3VA5212-6ED31-0AA0 is a 125 amp, 3-pole breaker from the 3VA5 series. It’s built for standard three-phase protection in commercial and industrial panels where you don’t need anything complicated—just something reliable. This unit uses a thermal magnetic trip. Overloads are handled on the thermal side, and short circuits trip instantly. The settings are fixed, so there’s nothing to adjust. That keeps installation simple and avoids guesswork later. With a 35kA interrupting rating at 480V, it’s suitable for systems where higher fault current is a concern. It’s commonly used in distribution panels, equipment protection, and as a direct replacement within the 3VA5 line.

Key Features and Benefits

• 125A rating
• 3-pole configuration
• Thermal magnetic trip unit (TM210)
• Fixed overload protection at 125A
• Instantaneous trip at 10x rated current
• 35kA @ 480V interrupting capacity
• 3VA52 frame size
• Simple install with no adjustments required

Technical Specifications

• Part Number: 3VA5212-6ED31-0AA0
  
• Amperage: 125A
  
• Poles: 3
  
• Interrupting Rating: 35kA @ 480V
  
• Frame: 3VA52 (UL Frame 250)
  
• Trip Unit: TM210 Thermal Magnetic
  
• Overload (Ir): 125A (fixed)
  
• Instantaneous (Ii): 10x In
  
• Dimensions:
  • 9.65" H
  • 6.3" W
  • 5.9" D

Material Compliance and Certifications

• UL Listed
• Meets standard North American electrical requirements
• Designed for consistent performance under normal operating conditions

Where It Works Best

• Commercial panels
• Light industrial equipment
• Power distribution systems
• Replacement for existing 3VA5 breakers
• Jobs where a fixed-trip breaker is preferred