3VA5290-6EF31-0AA0 - HFAS 90 Amp Circuit Breaker

3VA5290-6EF31-0AA0 - HFAS 90 Amp Circuit Breaker

The Siemens 3VA5290-6EF31-0AA0 is one of those breakers you use when you don’t want surprises later. It’s a 90-amp, 3-pole unit from the 3VA52 line, built for solid, everyday protection in commercial and industrial setups. This one keeps things simple. It uses a thermal magnetic trip—no complicated settings to dial in. The overload is fixed at 90 amps, and the short-circuit trip kicks in at 10 times that. That means it stays out of your way during normal operation but reacts fast when there’s a problem. It’s also rated at 35kA at 480V so that it can handle higher fault levels without hesitation. That matters if you’re working in environments where fault current isn’t something you can take lightly. Bottom line: it’s straightforward, dependable, and built to do its job without constant attention.

Key Features and Benefits

• 90 amp rating: for typical commercial and light industrial loads
• 3-pole protection: for three-phase systems
• Thermal magnetic trip: simple and proven
• No adjustable settings: what you see is what you get
• Instant trip: at 10x rated current for fast fault clearing
• 35kA interrupting capacity: at 480V
• Compact size: for easier panel fit
• Backed by Siemens build quality

Technical Specifications

• Part Number: 3VA5290-6EF31-0AA0
• Series: 3VA52
• Poles: 3
• Amperage: 90A
• Voltage: Up to 480V
• Interrupting Rating: 35kA @ 480V
• Trip Type: Thermal Magnetic (TM240 / ATAM)
• Overload (Ir): Fixed at 90A
• Instantaneous (Ii): 10x In
• Frame Size: 250
• Dimensions: 9.65" H × 6.3" W × 5.9" D

Material Compliance and Certifications

• UL listed: for safety and performance
• Built to meet: IEC design standards
• RoHS compliant
• Suitable: for code-compliant commercial and industrial installs

Where It Works Best

• This breaker is a good fit for: Commercial panels
• Industrial equipment
• Plant distribution systems
• OEM machinery
• Retrofit jobs where you need higher interrupting capacity