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Siemens 3VA5150-4ED21-0AA0 Molded Case Circuit Breaker

  • 50A
  • 2 Pole
  • Panel Mount
Siemens 3VA5150-4ED21-0AA0
Molded Case Circuit Breaker
Brand Siemens
SKU 3VA5150-4ED21-0AA0
Select Item Condition
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  • 50A
  • 2 Pole
  • Panel Mount

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Siemens 3VA5150-4ED21-0AA0 - 50A 2 Pole Molded Case Circuit Breaker

Siemens 3VA5150-4ED21-0AA0 - 50A 2 Pole Molded Case Circuit Breaker

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$445.00 In Stock

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Description

Engineered for commercial power distribution, the Siemens 3VA5150-4ED21-0AA0 is a 2-pole, 50A molded case circuit breaker from the Sentron 3VA5 frame family. This panel mount unit installs into Siemens 3VA panelboards and switchboards, serving as an exact replacement for the discontinued ED62B050. Rated 25kAIC at 480VAC, it features a TM210 trip unit with fixed long-time and instantaneous (LI) protection. The current-limiting design offers enhanced flexibility.

Specifications

Key specifications
Brand Siemens
Series 3VA5
Amperage 50A
Poles 2
Mounting Style Panel Mount
Voltage 240VAC, 480VAC, 600Y/347VAC, 250VDC
Phase 1
AIC Rating 65kA @ 240VAC, 25kA @ 480VAC, 14kA @ 600Y/347VAC
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, Lug Kits, DIN Rail Adapter
Accessories None (Standard)
Standards IEC 60947-2, UL 489
Approval ABS, CE, CSA, EAC, UL, VDE
Temp Rating -25C to 70C
Construction Features HACR Rated, HID Rated, Reverse Feed

Product FAQs

7 answers
Which discontinued Siemens breaker does the 3VA5150-4ED21-0AA0 replace?

This 3VA5 molded case circuit breaker serves as the direct replacement for the discontinued Siemens ED62B050.

What is the specific UL frame size for this circuit breaker?

While part of the broader 3VA frame group, this specific breaker is built on the Siemens 3VA5 UL 125A frame.

Is the 3VA5150-4ED21-0AA0 a current-limiting circuit breaker?

Yes, it features a current-limiting design that helps reduce let-through energy during a fault, providing enhanced protection for downstream electrical components.

What global safety standards does this Siemens breaker meet?

It is certified to both UL 489 and IEC 60947-2 standards, making it suitable for commercial and industrial power distribution in multiple regions.

What does the FTFM designation mean on this breaker's trip unit?

FTFM indicates that the TM210 thermal-magnetic trip unit has Fixed Thermal (overload) and Fixed Magnetic (short-circuit) protection settings, meaning the trip points cannot be adjusted in the field.

Is this breaker suitable for HVAC applications?

Yes, it carries an HACR rating, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.

Can the 3VA5150-4ED21-0AA0 be reverse fed?

Yes, this breaker is reverse feed capable, allowing for flexible installation in panels where the line power enters from the bottom.

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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