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3VA5210-5EC31-0AA0 - MFAS 100 Amp Circuit Breaker

  • 100 Amp
  • 35kA @ 480V Volts AC
  • 3 Pole

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3VA5210-5EC31-0AA0 - MFAS 100 Amp Circuit Breaker Description

3VA5210-5EC31-0AA0 - MFAS 100 Amp Circuit Breaker

If you’re looking for a dependable, no-nonsense solution for protecting your electrical system, the Siemens 3VA5210-5EC31-0AA0 checks all the right boxes. Built on Siemens’ 3VA5 platform, this 100 amp, 3-pole circuit breaker is designed to handle the kind of real-world conditions you see in commercial and industrial setups—where downtime isn’t an option. At its core, this breaker uses a thermal magnetic trip unit (TM230), which means it reacts intelligently to both overloads and short circuits. The overload protection is fixed at 100A, while the instantaneous trip kicks in at 10 times the rated current—fast enough to stop a fault before it turns into a bigger problem. With a 35kA interrupting rating at 480V, it’s more than capable of handling high fault currents in demanding environments. It’s also sized right for practical use. Not oversized, not awkward—just a solid, well-built unit that fits where it needs to and does its job without fuss.

Key Features and Benefits

  • 100 amp rating suited for a wide range of commercial and industrial loads
  • 3-pole design for full three-phase protection
  • 35kA interrupting capacity at 480V for handling higher fault levels
  • Thermal magnetic trip unit (TM230) for both overload and short-circuit protection
  • Fixed overload setting (Ir = 100A) for consistent performance
  • Instantaneous trip set at 10× In for quick fault clearing
  • Part of the Siemens 3VA5 series, known for reliability and ease of integration
  • Compact frame size that works well in standard panel configurations

Technical Specifications

  • Manufacturer: Siemens
  • Part Number: 3VA5210-5EC31-0AA0
  • Series: 3VA52
  • Frame Size: 250
  • Poles: 3
  • Amperage: 100A
  • Voltage Rating: Up to 480V
  • Interrupting Capacity: 35kA @ 480V
  • Trip Unit: Thermal Magnetic (TM230)
  • Overload Protection (Ir): 100A (fixed)
  • Short-Circuit Protection (Ii): 10 × In
  • Dimensions:
    • Height: 9.65 in
    • Width: 6.3 in
    • Depth: 5.9 in

Material Compliance and Certifications

  • UL Listed for safety and performance in the U.S.
  • Designed to meet standard electrical protection requirements
  • Built to Siemens manufacturing and quality standards
  • Suitable for use in UL-approved distribution systems

Where It Works Best

  • This breaker is a good fit anywhere you need steady, reliable protection without overcomplicating things: Commercial buildings and office power distribution Industrial panels and equipment protection Manufacturing facilities with moderate to high fault levels Retrofit jobs where compatibility and footprint matter General three-phase distribution systems

Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.

Siemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are NOT supplied by Siemens AG or its affiliates.

Specifications

  • Depth:5.9
  • Height:9.65
  • Width:6.3
  • Poles:3
  • Amperes:100
  • A.I.C. Rating & Volts:35kA @ 480V
  • Type:3VA52
  • Approx Dimensions:7.30"H x 4.10"W x 3.30"D
  • Additional Notes:M-Interrupting Class (MFAS) Thermal Magnetic circuit breaker 3VA5 UL Frame 250 breaking capacity class M 35 kA @ 480 V 3-pole, line protection TM230, FTAM, In=100 A overload protection Ir=100 A permanently set short-circuit protection Ii=10 x In without connection

Returns are easy

You may return unused items within 30 days of delivery for a full refund.

FREE shipping on breaker orders over $100 and all other items with orders over $500.

CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

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In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).

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