Siemens 3VA5120-4ED32-0AA0 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Panel Mount
Siemens
3VA5120-4ED32-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5120-4ED32-0AA0
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Siemens 3VA5120-4ED32-0AA0 - 20A 3 Pole Molded Case Circuit Breaker
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20A 3 Pole Molded Case Circuit Breaker
20A 3 Pole Molded Case Circuit Breaker
20A 3 Pole Molded Case Circuit Breaker
Description
Engineered for commercial and industrial applications, the Siemens 3VA5120-4ED32-0AA0 is a 3-pole, 20A molded case circuit breaker from the SENTRON family. It provides dependable long-time and instantaneous protection for switchboards. This panel-mount breaker installs into Siemens P1 through P5 panelboards and replaces the discontinued ED43B020. Rated 25kA at 480V, it features a fixed thermal and magnetic trip unit, nut keeper terminals, and is HACR rated for HVAC equipment.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 |
| Frame Type | 3VA51 |
|---|---|
| Terminal Type | Nut Keeper |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards (requires mounting kit), 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 | Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Motor Operator, Manual Operator |
|---|---|
| Accessories | Nut Keeper |
| Standards | IEC 60947-2, UL 489, CSA C22.2 No. 5 |
| Approval | ABS, CE, CSA, DNV, EAC, Lloyd's, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated |
Product FAQs
6 answersWhat legacy Siemens circuit breakers does the 3VA5120-4ED32-0AA0 replace?
This 3VA51 frame breaker is the modern replacement for legacy Siemens ED-frame breakers, such as the ED43B020 and ED63B020, when installed with the appropriate panelboard mounting kit.
What does the nut keeper terminal type mean for wiring this breaker?
The nut keeper connection means this breaker includes hardware on the line and load sides designed for bolting on ring terminals or busbars. If you need to terminate bare wire, you must install a compatible 3VA51 mechanical lug kit.
Can I install this 20A breaker in a Siemens P1 panelboard?
Yes, this 3VA51 frame circuit breaker is compatible with Siemens P1, P2, and P3 panelboards, but it requires a specific 3VA mounting kit for proper installation.
Is the Siemens 3VA5120-4ED32-0AA0 suitable for reverse feed applications?
Yes. Because it utilizes a thermal magnetic trip unit without electronic communication components, this breaker is suitable for reverse feed applications.
Is this circuit breaker HACR rated?
Yes, the 3VA5120-4ED32-0AA0 is HACR rated, making it suitable for overcurrent protection in heating, air conditioning, and refrigeration equipment.
Are the trip settings adjustable on this 20A breaker?
No. This breaker features a TM210 thermal magnetic trip unit with fixed long-time thermal and fixed instantaneous magnetic trip settings.
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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