Skip to main content
Expedited shipping available at checkout

Siemens 3VA5150-5ED21-0AA0 Molded Case Circuit Breaker

  • 50A
  • 2 Pole
  • Panel Mount
Siemens 3VA5150-5ED21-0AA0
Molded Case Circuit Breaker
Brand Siemens
SKU 3VA5150-5ED21-0AA0
Select Item Condition
Earn 487 SuperPoints
  • 50A
  • 2 Pole
  • Panel Mount

Quantity

Bulk Pricing
Send your parts list for a volume quote.
Siemens 3VA5150-5ED21-0AA0 - 50A 2 Pole Molded Case Circuit Breaker

Siemens 3VA5150-5ED21-0AA0 - 50A 2 Pole Molded Case Circuit Breaker

New

$487.20 In Stock

Quantity

Similar Items

Description

A high-performance solution for industrial facilities, the Siemens 3VA5150-5ED21-0AA0 is a 2-pole, 50A molded case circuit breaker built on the 125A frame. It ensures safe power distribution across 480VAC commercial networks. This breaker is engineered to fit Siemens 3VA panelboards and switchboards, serving as an excellent AIC upgrade for legacy ED42B050 installations.

Specifications

Key specifications
Brand Siemens
Part Number 3VA5150-5ED21-0AA0
Series 3VA5
Amperage 50A
Poles 2
Mounting Style Panel Mount
Voltage 240VAC, 480VAC, 600Y/347VAC, 250VDC
Phase 1
AIC Rating 85kA @ 240VAC, 35kA @ 480VAC, 18kA @ 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 Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Lugs
Accessories Lugs Not Included
Standards IEC 60947-2, UL 489, CSA C22.2 No. 5
Approval ABS, CE, CSA, EAC, IEC, UL, VDE
Temp Rating -25C to 70C
Construction Features HACR Rated, Reverse Feed, HID Rated

Product FAQs

7 answers
What panelboards are compatible with the 3VA5150-5ED21-0AA0?

This breaker is designed for installation in Siemens 3VA panelboards and switchboards.

What is the frame size for the 3VA5150-5ED21-0AA0?

This model is built on the Siemens 3VA51 frame, which has a maximum rating of 125A.

Can this circuit breaker be used in DC systems?

Yes, this 2-pole thermal-magnetic breaker is suitable for direct current applications up to 250V DC.

Is the 3VA5150-5ED21-0AA0 HACR rated?

Yes, Siemens 3VA5 thermal-magnetic circuit breakers are HACR rated per UL standards for use with heating, air conditioning, and refrigeration equipment.

Is this breaker suitable for reverse feed applications?

Yes, all Siemens 3VA5 thermal-magnetic trip circuit breakers are UL listed for reverse feed installations.

What does the LI trip function code indicate on this breaker?

The LI designation means the TM210 trip unit provides Long-Time (thermal overload) and Instantaneous (magnetic short-circuit) protection. Both the thermal and magnetic trip points are fixed on this specific model.

What breaking capacity class does the 3VA5150-5ED21-0AA0 fall under?

This breaker is classified as a Class M (Medium) breaking capacity device, which provides a 35kA interrupting rating at 480V AC and 85kA at 240V AC.

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

Get a Quote

Don’t see what you’re looking for?

We source obsolete and hard-to-find parts every day.

Shipping

Free Shipping Policy

Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.

Read our full shipping policy

Same Day Shipping

We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.

Expedited Shipments

Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.

International Shipping

All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.

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