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Siemens 3VA5212-6ED31-0AA0 Molded Case Circuit Breaker

  • 125A
  • 3 Pole
  • Panel Mount
Siemens 3VA5212-6ED31-0AA0
Molded Case Circuit Breaker
Brand Siemens
SKU 3VA5212-6ED31-0AA0
Select Item Condition
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  • 125A
  • 3 Pole
  • Panel Mount

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Siemens 3VA5212-6ED31-0AA0 - 125A 3 Pole Molded Case Circuit Breaker

Siemens 3VA5212-6ED31-0AA0 - 125A 3 Pole Molded Case Circuit Breaker

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$1,624.00 In Stock

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Description

Part of the SENTRON family, the Siemens 3VA5212-6ED31-0AA0 is a 3-pole, 125A molded case circuit breaker rated 65kAIC at 480VAC. This MCCB installs into Siemens 3VA panelboards and switchboards. It serves as a replacement for legacy HFD63B125 breakers when paired with a retrofit kit. The unit utilizes a TM210 fixed thermal and magnetic trip unit for precise long-time and instantaneous (LI) protection. It is HACR rated and current limiting.

Specifications

Key specifications
Brand Siemens
Part Number 3VA5212-6ED31-0AA0
Series 3VA5
Amperage 125A
Poles 3
Mounting Style Panel Mount
Voltage 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC, 500VDC, 750VDC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 25kA @ 600VAC, 85kA @ 250VDC, 85kA @ 500VDC, 85kA @ 750VDC
Fit and installation
Terminal Type Lugs
For Use With Siemens 3VA Panelboards, Switchboards
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Motor Operator
Accessories None (Nut Keeper)
Standards IEC 60947-2, UL 489, HACR
Approval CE, CSA, UL, VDE
Temp Rating -25C to 70C
Construction Features HACR Rated

Product FAQs

6 answers
Can this breaker replace older Siemens legacy models?

Yes, the 3VA5212-6ED31-0AA0 can serve as a replacement for legacy HFD63B125 circuit breakers when installed with the appropriate Siemens retrofit kit.

What is the frame size of the 3VA5212-6ED31-0AA0?

This breaker is built on the Siemens 3VA52 frame, which has a maximum capacity of 250A, though this specific unit is factory-rated for 125A.

Is the 3VA5212-6ED31-0AA0 suitable for heating and cooling applications?

Yes, this molded case circuit breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment.

What type of trip unit is equipped on this breaker?

It features a TM210 thermal-magnetic trip unit with fixed long-time and fixed instantaneous protection functions.

What are the physical dimensions of the 3VA52 frame breaker?

The 3VA52 frame measures approximately 7.3 inches high, 4.1 inches wide, and 4.2 inches deep.

Does this breaker provide current limiting protection?

Yes, the 3VA5212-6ED31-0AA0 is a current-limiting circuit breaker, which helps reduce let-through energy during a fault to protect downstream equipment.

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Reviews

4.8
Rated 4.8 out of 5 stars
Based on 8 reviews
Rating
Ratings
8 reviews
  • EA
    Edward A.
    Verified Buyer
    Reviewing
    Siemens 3VA5112-5EC31-0AA0 - 125A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/11/26
    Quick Shipping

    Instock and quick free shipping over a $100

  • JF
    Justin F.
    Verified Buyer
    Reviewing
    Siemens 3VA5450-5EC31-0AA0 - 500A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/2/26
    SIEMENS BREAKER WAS SENT NEXT DAY...

    ORDER CAME WHEN IT WAS PROMISSED AND WAS CORRECT... HAPPY CUSTOMER.

    THANK YOU,

    JUSTIN

  • GM
    Gary M.
    Verified Buyer
    Reviewing
    Siemens 3VA5112-4EC31-0AA0 - 125A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    6/19/26
    Hard to find Siemens breaker

    Great product at a fair price

  • RJ
    Rene J.
    Verified Buyer
    Reviewing
    Siemens 3VA5212-6EF31-0AA0 - 125A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    4/13/26
    Siemens 3VA5212-6EF31-0AA0 

    Item arrived quickly and in perfect condition

  • DT
    DENNIS T.
    Verified Buyer
    Reviewing
    Siemens 3VA5220-6ED31-0AA0 - 200A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/15/26
    Breaker Purchase

    Great price and fast shipment