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Siemens 3VA5120-5ED21-0AA0 Molded Case Circuit Breaker
- 20A
- 2 Pole
- Panel Mount
Siemens
3VA5120-5ED21-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5120-5ED21-0AA0
Quantity
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Siemens 3VA5120-5ED21-0AA0 - 20A 2 Pole Molded Case Circuit Breaker
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Description
Built for demanding commercial and industrial environments, the Siemens 3VA5120-5ED21-0AA0 is a 2-pole molded case circuit breaker from the 3VA5 frame family. It provides reliable line protection with a fixed thermal and magnetic TM210 trip unit. This panel mount MCCB fits Siemens P1 and P2 panelboards as well as switchboards. It serves as a replacement for legacy ED62B020 and ED42B020 breakers, though older panels may require a mounting kit.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5120-5ED21-0AA0 |
| Series | 3VA5 |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 85kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 50kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1 Panelboards, Siemens P2 Panelboards, Siemens Switchboards |
| 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, Padlock Attachment, Motor Operator, Rotary Handle, DIN Rail Adapter |
|---|---|
| Accessories | None (Nut Keeper) |
| Standards | IEC 60947-2, UL 489, HACR, HID |
| Approval | ABS, CE, CSA, EAC, IEC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, HID Rated, Current Limiting, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
5 answersWhich Siemens panelboards accept the 3VA5120-5ED21-0AA0 circuit breaker?
This 2-pole breaker is designed for use in Siemens P1 and P2 panelboards, as well as Siemens switchboards.
Are the thermal and magnetic trip settings adjustable on this breaker?
No, this breaker features a fixed thermal and fixed magnetic (LI) trip unit, meaning the long-time and instantaneous trip functions cannot be field-adjusted.
Can the 3VA5120-5ED21-0AA0 be used in DC voltage applications?
Yes, this breaker is rated for DC applications up to 250VDC, providing a 50kA interrupting capacity at that voltage.
What frame size does the 3VA5120-5ED21-0AA0 belong to?
This breaker is part of the Siemens 3VA51 frame, which is a 125A frame size within the SENTRON family.
Is this breaker suitable for three-phase systems?
No, the 3VA5120-5ED21-0AA0 is a 2-pole breaker designed for single-phase applications.
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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