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Siemens 3VA5112-5ED21-0AA0 Molded Case Circuit Breaker
- 125A
- 2 Pole
- Panel Mount
Siemens
3VA5112-5ED21-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5112-5ED21-0AA0
Quantity
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Siemens 3VA5112-5ED21-0AA0 - 125A 2 Pole Molded Case Circuit Breaker
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Description
Built for heavy-duty electrical infrastructure, this 125A two-pole circuit breaker ensures dependable long-time and instantaneous (LI) circuit protection. The compact 3VA51 frame is optimized for high-performance commercial and industrial switchgear. It integrates into Siemens P1, P2, P3, and 3VA panelboards, replacing the discontinued ED62B125 breaker via an adapter kit.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5112-5ED21-0AA0 |
| Series | 3VA5 |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 85kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 85kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards, 3VA Panelboards, 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, Motor Operator, Rotary Handle, DIN Rail Adapter, Handle Lock, Padlock Attachment |
|---|---|
| Accessories | None (No Lugs Included) |
| Standards | IEC 60947-2, UL 489, HACR |
| Approval | ABS, CE, CSA, EAC, IEC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
6 answersCan this breaker replace older Siemens ED frame breakers?
Yes, the 3VA5112-5ED21-0AA0 serves as a direct replacement for discontinued ED frame breakers, such as the ED42B125 and ED62B125, when used with the appropriate adapter or mounting kit.
Which Siemens panelboards are compatible with this circuit breaker?
This breaker is designed to install into Siemens P1, P2, P3, and 3VA panelboards, as well as Siemens switchboards, using the correct mounting hardware.
Is this circuit breaker suitable for direct current (DC) applications?
Yes, this breaker is rated for DC applications up to 250VDC with an interrupting capacity of 85kA.
Can this breaker be reverse fed?
Yes, all Siemens 3VA51 thermal magnetic trip circuit breakers are UL listed for reverse feed applications.
What frame size does this breaker belong to?
It is part of the Siemens 3VA51 frame size, which has a maximum continuous current rating of 125 amps.
Are the trip settings adjustable on this unit?
No, this breaker features a non-interchangeable thermal magnetic trip unit with fixed long time and fixed instantaneous (LI) trip functions.
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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