3VA5240-6ED31-0AA0 - HFAS 40 Amp Circuit Breaker

3VA5240-6ED31-0AA0 - HFAS 40 Amp Circuit Breaker

The Siemens 3VA5240-6ED31-0AA0 is a straightforward 40 amp, 3-pole breaker built for three-phase systems.Nothing fancy here—and that’s the point. It’s made to protect your equipment and wiring without giving you extra setup work. It uses a thermal-magnetic trip, factory set at 40 amps. So there’s no adjusting or second-guessing. Once it’s in, it’s doing its job—handling overloads and tripping fast on short circuits. One thing worth noting is the interrupting rating. At 35kA @ 480V, it’s more than capable for most commercial and light industrial setups. When a fault hits, it clears it quickly, which helps avoid bigger damage downstream. If you’ve used Siemens 3VA breakers before, this one feels familiar. Same footprint, same general layout. Easy to work into existing panels or new installs.

Key Features and Benefits

• 40 amp rating for standard protection needs
• 3-pole design for three-phase systems
• Thermal-magnetic trip (fixed at 40A)
• 35kA interrupting rating @ 480V
• Instant trip at 10x current for short circuits
• Compact size, fits well in most panels
• Part of the Siemens 3VA5 line

Technical Specifications

• Part Number: 3VA5240-6ED31-0AA0
• Series: 3VA5
• Frame Size: 3VA52 (250A frame)
• Poles: 3
• Amps: 40A
• Trip Unit: TM210 thermal-magnetic
• Overload (Ir): 40A (fixed)
• Short-Circuit (Ii): 10 × In
• Interrupting Rating: 35kA @ 480V
• Class: H (HFAS)
• Dimensions: 9.65" H × 6.3" W × 5.9" D

Material Compliance and Certifications

• UL Listed
• Meets standard U.S. electrical requirements
• Built to Siemens manufacturing standards

Where It Works Best

• Commercial panels
• Light industrial equipment
• Panel upgrades or replacements
• Three-phase distribution setups
• Jobs where you just need a reliable 40A breaker without extra features