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Siemens 3VA5120-4ED31-0AA0 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Panel Mount
Siemens
3VA5120-4ED31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5120-4ED31-0AA0
Quantity
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Siemens 3VA5120-4ED31-0AA0 - 20A 3 Pole Molded Case Circuit Breaker
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Description
Designed to meet rigorous industrial standards, the Siemens 3VA5120-4ED31-0AA0 is a 3-pole, 20A MCCB. It utilizes a highly reliable TM210 thermal-magnetic trip unit with fixed settings for essential circuit defense. This panel-mount component is engineered for compatibility with Siemens 3VA panelboards and motor control centers. It also functions as a replacement for older ED43B020 models. With an interrupt rating of 25 kAIC at 480VAC, the breaker is HACR rated and reverse feed capable.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 | 65kA @ 240VAC, 25kA @ 480Y/277VAC, 25kA @ 480VAC, 14kA @ 600Y/347VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens 3VA Panelboards, Switchboards, Motor Control Centers |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Lugs, DIN Rail Adapter, Handle Lock |
|---|---|
| Accessories | None (Without Connection) |
| Standards | IEC 60947-2, UL 489, HACR |
| Approval | CE, CSA, EAC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed |
Product FAQs
7 answersWhat equipment is the Siemens 3VA5120-4ED31-0AA0 compatible with?
This breaker is designed for installation in Siemens 3VA panelboards, switchboards, and motor control centers.
What frame size is the 3VA5120-4ED31-0AA0?
It is built on the Siemens 3VA51 frame, which is a 125A maximum frame size.
Can the 3VA5120-4ED31-0AA0 be reverse fed?
Yes, this molded case circuit breaker is suitable for reverse feed applications.
Is this circuit breaker rated for DC voltage applications?
Yes, in addition to its standard AC ratings, this breaker is rated for up to 500VDC.
Can this breaker replace older Siemens ED frame models?
Yes, the 3VA5120-4ED31-0AA0 functions as a modern replacement for older ED43B020 circuit breakers.
What does the LI trip function code mean for this breaker?
The LI designation indicates that the thermal magnetic trip unit provides Long-Time overload protection and Instantaneous short-circuit protection.
Is the 3VA5120-4ED31-0AA0 HACR rated?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.
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Rating
8 reviews
- EAEdward A.Verified BuyerReviewingSiemens 3VA5112-5EC31-0AA0 - 125A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/11/26Quick Shipping
Instock and quick free shipping over a $100
- JFJustin F.Verified BuyerReviewingSiemens 3VA5450-5EC31-0AA0 - 500A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/2/26SIEMENS BREAKER WAS SENT NEXT DAY...
ORDER CAME WHEN IT WAS PROMISSED AND WAS CORRECT... HAPPY CUSTOMER.
THANK YOU,
JUSTIN
- GMGary M.Verified BuyerRated 4 out of 5 stars6/19/26Hard to find Siemens breaker
Great product at a fair price
- RJRene J.Verified BuyerReviewingSiemens 3VA5212-6EF31-0AA0 - 125A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars4/13/26Siemens 3VA5212-6EF31-0AA0
Item arrived quickly and in perfect condition
- DTDENNIS T.Verified BuyerReviewingSiemens 3VA5220-6ED31-0AA0 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/15/26Breaker Purchase
Great price and fast shipment