3VA5270-6EF31-0AA0 - HFAS 70 Amp Circuit Breaker

3VA5270-6EF31-0AA0 - HFAS 70 Amp Circuit Breaker

The Siemens 3VA5270-6EF31-0AA0 is a 70 amp, 3-pole breaker from the 3VA5 series. It’s a thermal magnetic unit with fixed settings, so there’s nothing to dial in—it’s ready to go as-is. It handles overloads the way you’d expect, and if there’s a short, it trips fast. With a 35kA rating at 480V, it’s built for systems where fault current isn’t low. It’s also fairly compact for its class, which helps when panel space starts getting tight.

Key Features and Benefits

• 70 amp rating, fixed
• Thermal magnetic trip (no adjustments needed)
• 35kA @ 480V interrupting capacity
• 3-pole for three-phase systems
• Instantaneous trip at 10x In
• Doesn’t take up more space than it has to

Technical Specifications

• Part Number: 3VA5270-6EF31-0AA0
• Series: 3VA52
• Amperage: 70A
• Poles: 3
• Interrupting Rating: 35kA @ 480V
• Trip Unit: TM240 (thermal magnetic)
• Overload (Ir): 70A
• Instantaneous (Ii): 10 × In
• Frame: 250
• Size: 9.65" H × 6.3" W × 5.9" D

Material Compliance and Certifications

• UL listed
• Class H interrupting rating
• Meets standard low-voltage application requirements

Where It Works Best

• You’ll see this used in commercial panels, light industrial work, and OEM equipment. Good for branch circuits, motors, general distribution—especially where you’ve got higher available fault current. It’s not fancy, but that’s kind of the point. It just works.