3VA5211-6EC31-0AA0 - HFAS 110 Amp Circuit Breaker

3VA5211-6EC31-0AA0 - HFAS 110 Amp Circuit Breaker

The Siemens 3VA5211-6EC31-0AA0 circuit breaker is the kind of component you install and don't have to think about again—which, in this line of work, is exactly what you want. Rated at 110 amps with a 3-pole configuration, it's built for protecting three-phase systems in commercial and industrial settings where reliability isn't optional. This breaker uses a thermal magnetic trip unit, so it responds to both long-term overloads and sudden short circuits without hesitation. There's no need to dial anything in or make adjustments in the field—the protection settings are fixed and ready to go. That simplicity saves time during installation and reduces the risk of misconfiguration later. It also offers a solid interrupting rating, making it a good fit for systems where higher fault currents are a concern. And despite its capabilities, the unit stays fairly compact, which helps when panel space is tight or layouts need to stay clean and organized.

Key Features and Benefits

• The thermal magnetic trip unit handles both overloads and short circuits automatically
• 35kA @ 480V interrupting rating supports higher fault-level applications
• Fixed trip settings eliminate guesswork and reduce setup time
• Compact 3VA5 frame works well in space-conscious panel designs
• 3-pole construction provides consistent protection across all phases
• Built for steady, long-term use in demanding environments

Technical Specifications

• Part Number: 3VA5211-6EC31-0AA0
  
• Series: 3VA52
  
• Poles: 3
  
• Amperage: 110A
  
• Interrupting Rating: 35kA @ 480V
  
• Frame Size: 250
  
• Trip Type: Thermal Magnetic (TM230)
  
• Overload Protection (Ir): 110A (fixed)
  
• Short-Circuit Protection (Ii): 10× In (fixed)
  
• Dimensions: 9.65" (H) × 6.3" (W) × 5.9" (D)
  

Material Compliance and Certifications

• UL listed for use in North American electrical systems
• Designed in line with IEC standards for consistent performance
• H-interrupting class (HFAS), suitable for higher fault current applications

Where It Works Best

• You'll typically see this breaker in commercial facilities, manufacturing environments, and distribution panels where dependable protection is needed without constant oversight. It's a practical choice for motor control centers, panelboards, and general power distribution, especially when you want something straightforward that does its job.