3VA5280-5ED31-0AA0 - MFAS 80 Amp Circuit Breaker

3VA5280-5ED31-0AA0 - MFAS 80 Amp Circuit Breaker

The Siemens 3VA5280-5ED31-0AA0 is one of those breakers you reach for when you don’t want complications. It’s an 80-amp, 3-pole unit built for straightforward line protection in commercial and industrial setups. No adjustable settings to mess with—what you see is what you get. The thermal magnetic trip handles overloads the way you’d expect, and when a fault hits, it reacts fast. With a 35kA interrupting rating at 480V, it’s more than capable for most mid-level applications. It also fits into the 3VA5 frame line, so if you’ve worked with these before, installation feels familiar and predictable.

Key Features and Benefits

• 80A fixed protection – No dialing things in, install and go
• Thermal magnetic trip – Reliable, familiar performance in everyday use
• 35kA @ 480V – Solid interrupting capacity for commercial systems
• 3-pole configuration – Designed for standard three-phase power
• Compact size – Doesn’t eat up unnecessary panel space
• Minimal setup – Less time spent adjusting, fewer chances for mistakes

Technical Specifications

• Part Number: 3VA5280-5ED31-0AA0
  
• Poles: 3
  
• Amperage: 80A
  
• Interrupting Rating: 35kA @ 480V
  
• Frame Type: 3VA52
  
• Trip Unit: TM210 Thermal Magnetic
  
• Overload Protection (Ir): 80A (fixed)
  
• Instantaneous Trip (Ii): 10 × In
  
• Dimensions: 9.65" H × 6.3" W × 5.9" D

Material Compliance and Certifications

• Built to meet UL standards, this breaker checks the boxes for use in North American electrical systems. It’s made with materials suited for long-term use under normal operating conditions in commercial and industrial environments.

Where It Works Best

• This model makes sense in places where you just need dependable protection without overcomplicating things:
• Commercial panelboards
• Light industrial equipment
• Feeder circuits
• General-purpose three-phase systems
• If you’ve ever dealt with over-configured breakers slowing you down, this one feels like a relief. It does exactly what it’s supposed to do—and gets out of your way.