3VA5250-7ED31-0AA0 - CFAS 50 Amp Circuit Breaker

3VA5250-7ED31-0AA0 - CFAS 50 Amp Circuit Breaker

The Siemens 3VA5250-7ED31-0AA0 is one of those breakers that does exactly what you expect—no extra fluff, no unnecessary adjustments. It’s a 50 amp, 3-pole unit from the 3VA5 line, built for solid protection in everyday commercial and light industrial setups. Where it really earns its keep is the 100kA interrupting rating at 480V. That gives you a comfortable margin in higher fault environments, which is something you don’t want to compromise on. If you're protecting equipment that matters, that rating alone makes this worth a look. This model uses a thermal magnetic trip (TM210) with fixed settings. That means no dialing things up or down—it’s already set at 50 amps for overload and trips instantly at 10 times that for short circuits. For a lot of applications, that’s actually a benefit. Install it, wire it, and move on.

Key Features and Benefits

• 50 Amp Rating: Straightforward protection for standard applications
• 3-Pole Design: Built for three-phase systems
• 100kA @ 480V Interrupting Capacity: Handles higher fault levels without hesitation
• Thermal Magnetic Trip Unit (TM210): Proven, dependable protection style
• Fixed Trip Settings: No setup required; works right out of the box
• 3VA5 Frame (250): Compact enough to fit where space is tight

Technical Specifications

• Part Number: 3VA5250-7ED31-0AA0
  
• Series: Siemens 3VA5
  
• Amperage: 50A
  
• Poles: 3
  
• Interrupting Rating: 100kA @ 480V
  
• Trip Unit: Thermal Magnetic (TM210)
  
• Overload Protection (Ir): 50A (fixed)
  
• Instantaneous Trip (Ii): 10 × In
  
• Frame Size: 250
  
• Dimensions:
  • Height: 9.65 in
  • Width: 6.3 in
  • Depth: 5.9 in

Material Compliance and Certifications

• UL Listed for use in the U.S. and Canada
• Meets recognized industry safety standards
• RoHS compliant for reduced hazardous materials
• Manufactured to consistent Siemens quality standards

Where It Works Best

• You’ll typically see this used in panelboards, switchgear, and equipment protection where a 50A breaker with higher interrupting capacity is needed. It’s a good fit for commercial buildings, control panels, and OEM applications—especially when you want something reliable without getting into adjustable trip units.