3VA5217-6EF31-0AA0 - HFAS 175 Amp Circuit Breaker
- 175 Amp
- 35kA @ 480V Volts AC
- 3 Pole
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3VA5217-6EF31-0AA0 - HFAS 175 Amp Circuit Breaker Description
3VA5217-6EF31-0AA0 - HFAS 175 Amp Circuit Breaker
When you’re dealing with three-phase power, you don’t want to overthink circuit protection—you want something that works and keeps working. The Siemens 3VA5217-6EF31-0AA0 is built for exactly that. It’s a 175 amp, 3-pole circuit breaker from the 3VA52 series, commonly used in commercial panels and light industrial setups where reliability is expected, not optional.
This model uses a thermal magnetic trip unit, which is about as straightforward as it gets. It handles overloads and short circuits without needing fine-tuning or ongoing adjustments. The settings are fixed—175A for overload protection and 10x that for instantaneous trips—so once it’s in place, it does its job in the background without any extra attention.
In real-world terms, that means fewer headaches during installation and fewer surprises down the line. If you’re replacing an existing breaker or putting together a panel that needs dependable protection, this is one of those components you install and move on from—because it just handles its role.
Key Features and Benefits
- 175 amp rating suited for common commercial and industrial loads
- 3-pole design for full three-phase protection
- Thermal magnetic trip unit for reliable, familiar performance
- 35kA interrupting rating at 480V for handling higher fault levels
- Fixed trip settings (Ir = 175A, Ii = 10× In) keep things simple
- Part of the Siemens 3VA52 (Frame 250) lineup
- No field adjustments needed—install it, and you’re set
Technical Specifications
- Part Number: 3VA5217-6EF31-0AA0
- Series: Siemens 3VA52
- Amperage: 175A
- Poles: 3
- Voltage Rating: Up to 480V
- Interrupting Capacity: 35kA @ 480V
- Trip Type: Thermal Magnetic (TM240, ATAM)
- Frame Size: 250
- Dimensions: 9.65" H × 6.3" W × 5.9" D
Material Compliance and Certifications
- UL listed for use in North American electrical systems
- Manufactured to meet established safety and performance standards
- Built with materials suited for consistent, long-term use
Where It Works Best
- Commercial electrical distribution panels
- Light industrial equipment and machinery
- Facility power systems and infrastructure
- Replacement for Siemens 3VA52 series breakers
- Installations where fixed, no-adjustment protection is preferred.
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Specifications
- Depth:5.9
- Height:9.65
- Width:6.3
- Poles:3
- Amperes:175
- A.I.C. Rating & Volts:35kA @ 480V
- Type:3VA52
- Approx Dimensions:7.30"H x 4.10"W x 3.30"D
- Additional Notes:H-Interrupting Class (HFAS) Thermal Magnetic circuit breaker 3VA5 UL Frame 250 breaking capacity Class H 65 kA @ 480 V 3-pole, line protection TM240, ATAM, In=175 A overload protection Ir=175 A permanently set short-circuit protection Ii=10 x In without connection
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