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Siemens 3VA5120-6EC31-0AA0 Molded Case Circuit Breaker

  • 20A
  • 3 Pole
  • Panel Mount
Siemens 3VA5120-6EC31-0AA0
Molded Case Circuit Breaker
Brand Siemens
SKU 3VA5120-6EC31-0AA0
Select Item Condition
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  • 20A
  • 3 Pole
  • Panel Mount

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Siemens 3VA5120-6EC31-0AA0 - 20A 3 Pole Molded Case Circuit Breaker

Siemens 3VA5120-6EC31-0AA0 - 20A 3 Pole Molded Case Circuit Breaker

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$519.61 In Stock

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Description

Built for commercial power systems, the Siemens 3VA5120-6EC31-0AA0 is a 3-pole, 20A molded case circuit breaker. It utilizes a TM230 trip unit, providing fixed thermal and adjustable magnetic settings for precise protection. This unit mounts into Siemens P1 and P2 panelboards, as well as switchboards. It also functions as a replacement for legacy HHED63B020 and HED43B020 breakers. Delivering Class H breaking capacity, this breaker is rated 65kAIC at 480V and 100kAIC at 240V.

Specifications

Key specifications
Brand Siemens
Series 3VA5
Amperage 20A
Poles 3
Mounting Style Panel Mount
Voltage 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 500VDC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 100kA @ 500VDC
Fit and installation
Terminal Type Lugs
For Use With Siemens P1 Panelboards, Siemens P2 Panelboards, Siemens Switchboards
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Motor Operator, Rotary Handle, Lugs
Accessories Lugs Not Included
Standards IEC 60947-2, UL 489, HACR
Approval CE, CSA, IEC, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, Current Limiting

Product FAQs

4 answers
Which Siemens panelboards are compatible with the 3VA5120-6EC31-0AA0?

This breaker is designed for use in Siemens P1 and P2 panelboards, as well as Siemens switchboards.

Are the trip settings adjustable on this 3VA5 breaker?

Yes, it features a thermal magnetic trip unit with fixed thermal protection and adjustable magnetic (instantaneous) protection settings.

Is the 3VA5120-6EC31-0AA0 rated for direct current (DC) systems?

Yes, this breaker is rated for DC applications with an interrupting capacity of 100kA at 500VDC.

What type of connection does this molded case circuit breaker utilize?

It utilizes a feed-thru connection type and mounts directly to the panel using lugs.

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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