Siemens 3VA5120-4ED11-0AA0 Molded Case Circuit Breaker
- 20A
- 1 Pole
- Panel Mount
Siemens
3VA5120-4ED11-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5120-4ED11-0AA0
Quantity
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Siemens 3VA5120-4ED11-0AA0 - 20A 1 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial applications, the Siemens 3VA5120-4ED11-0AA0 is a 1-pole, 20A molded case circuit breaker. It belongs to the 3VA5 frame group, delivering reliable protection for modern electrical systems. This panel mount MCCB installs into Siemens P2 through P5 panelboards. With the appropriate mounting kit, it serves as a seamless upgrade for legacy ED41B020 breakers. Rated 65 kAIC at 120VAC, it utilizes a TM210 fixed thermal-magnetic trip unit. It is HACR rated and lugless.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5120-4ED11-0AA0 |
| Series | 3VA5 |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Panel Mount |
| Voltage | 120VAC, 277VAC, 125VDC, 347VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 25kA @ 277VAC, 14kA @ 125VDC, 14kA @ 347VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P2, P3, P4, P5 Panelboards, Switchboards, Enclosures |
| 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, Handle Tie, Padlock Attachment, Lug Kits, DIN Rail Adapter |
|---|---|
| Accessories | None (Without Lugs) |
| Standards | IEC 60947-2, UL 489 |
| Approval | CE, CSA, EAC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed, Trip-Free Mechanism |
Product FAQs
7 answersDoes the 3VA5120-4ED11-0AA0 come with terminal lugs installed?
No. The 0AA0 suffix indicates this breaker is shipped from the factory without lugs. Line and load lugs, or nut keepers for panelboard mounting, must be ordered separately for field installation.
What frame size does this circuit breaker belong to?
This breaker is part of the Siemens 3VA51 frame size, which supports a maximum continuous current of 125A.
Which Siemens panelboards are compatible with this breaker?
It is designed for installation in Siemens P2, P3, P4, and P5 panelboards, as well as compatible Siemens switchboards and enclosures.
Can this molded case circuit breaker be used in DC power systems?
Yes, Siemens thermal-magnetic trip MCCBs like this one are applicable on direct current (DC) systems. It provides an interrupting capacity of 14kA at 125VDC.
What type of trip unit is included in this breaker?
It features a TM210 thermal-magnetic trip unit with LI (Long-Time and Instantaneous) functions. Both the thermal overload and magnetic short-circuit trip settings are fixed.
What does the 4 in the 3VA5120-4ED11-0AA0 catalog number represent?
The 4 designates it as a Class S (Standard) interrupting capacity breaker, which provides a 25kA interrupting rating at 277VAC and 65kA at 120VAC.
What are the physical dimensions of this 1-pole breaker?
This 1-pole 3VA51 breaker measures approximately 5.51 inches in height, 1 inch in width, and 3.68 inches in depth.
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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