3VA5290-7ED31-0AA0 - CFAS 90 Amp Circuit Breaker

3VA5290-7ED31-0AA0 - CFAS 90 Amp Circuit Breaker

The Siemens 3VA5290-7ED31-0AA0 is built for situations where failure isn’t really an option. It’s a 90-amp, 3-pole breaker from the 3VA5 family, designed to handle higher fault levels without hesitation and keep your system protected when it matters most. One of the first things people look at is the interrupting rating—and this one comes in at 100kA at 480V, which puts it in a class suited for more demanding commercial and industrial setups. It’s paired with a thermal magnetic trip unit (TM210), so you’re getting straightforward, fixed protection. No complicated adjustments, no overthinking it—it just does its job. This is the kind of breaker you install when you want consistency. It trips when it should, stays out of the way when it shouldn’t, and holds up over time.

Key Features and Benefits

• 100kA interrupting capacity @ 480V for higher fault-current applications
• 90 amp rating that fits a wide range of three-phase systems
• The thermal magnetic trip unit (TM210) keeps things simple and predictable
• Fixed overload protection at 90A—no field adjustments required
• Instantaneous trip at 10x In for fast response during short circuits
• 3-pole configuration for standard three-phase distribution
• Compact size makes it easier to work into existing panels
• Part of the Siemens 3VA5 series, known for consistent performance

Technical Specifications

• Part Number: 3VA5290-7ED31-0AA0
• Series: 3VA52
• Poles: 3
• Amperage: 90A
• Interrupting Rating: 100kA @ 480V
• Trip Unit: Thermal Magnetic (TM210)
• Overload Protection (Ir): 90A (fixed)
• Instantaneous Protection (Ii): 10 × In
• Interrupting Class: C (CFAS)
• Frame Size: 250
• Dimensions: 9.65" H × 6.3" W × 5.9" D

Material Compliance and Certifications

• This unit is UL-listed and built to meet standard requirements for low-voltage power distribution in the U.S. Siemens has a long track record in this space, and that shows up in the consistency of their components. For something as critical as circuit protection, accurate specs and reliable performance aren’t optional—they’re expected.

Where It Works Best

• Commercial panelboards
• Industrial equipment and control panels
• Manufacturing facilities
• Systems with a higher available fault current
• Replacement jobs where matching AIC ratings is important