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Siemens 3VA5212-5ED31-0AA0 Molded Case Circuit Breaker
- 125A
- 3 Pole
- Panel Mount
Siemens
3VA5212-5ED31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5212-5ED31-0AA0
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Siemens 3VA5212-5ED31-0AA0 - 125A 3 Pole Molded Case Circuit Breaker
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125A 3 Pole Molded Case Circuit Breaker
125A 3 Pole Molded Case Circuit Breaker
125A 3 Pole Molded Case Circuit Breaker
Description
Designed for heavy-duty distribution, the Siemens 3VA5212-5ED31-0AA0 is a 3-pole molded case circuit breaker providing essential long-time and instantaneous functions. It mounts into Siemens 3VA panelboards, or P1, P2, and P3 models using a strap kit. It is an exact cross-reference replacement for the legacy FXD63B125. Featuring a 35kAIC rating at 480V, the unit includes a TM210 thermal-magnetic trip unit with fixed thermal and magnetic settings for consistent performance.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5212-5ED31-0AA0 |
| Series | 3VA5 |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC, 500VDC, 750VDC |
| Phase | 3 |
| AIC Rating | 85kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC, 50kA @ 250VDC, 50kA @ 500VDC, 50kA @ 750VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens 3VA Panelboards, P1/P2/P3 Panelboards (requires strap kit), Switchboards |
| 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 |
|---|---|
| Accessories | None (Without Connection) |
| Standards | IEC 60947-2, UL 489 |
| Approval | CCC, CE, CSA, EAC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting |
Product FAQs
6 answersWhat legacy Siemens breaker does the 3VA5212-5ED31-0AA0 replace?
This 3VA5 series breaker serves as a direct cross-reference replacement for the legacy Siemens FXD63B125 molded case circuit breaker.
What panelboards are compatible with the 3VA5212-5ED31-0AA0?
This breaker is designed for heavy-duty distribution in Siemens 3VA panelboards and switchboards. It can also be installed in P1, P2, and P3 panelboards by using the appropriate 3VA52 frame strap kit.
What frame size is the 3VA5212-5ED31-0AA0?
This unit is built on the Siemens 3VA52 frame. While this specific breaker is rated for 125A, the 3VA52 frame size supports a maximum capacity of up to 250A.
Can the trip settings be adjusted on the 3VA5212-5ED31-0AA0?
No. This breaker is equipped with a TM210 thermal-magnetic trip unit that features fixed thermal (long-time) and fixed magnetic (instantaneous) protection settings. They cannot be modified in the field.
Is the 3VA5212-5ED31-0AA0 suitable for direct current (DC) systems?
Yes, this thermal-magnetic breaker is rated for use in DC applications. It provides up to 50kA of interrupting capacity across 250V, 500V, and 750V DC systems.
Is the Siemens 3VA5212-5ED31-0AA0 suitable for reverse feed applications?
Yes, all Siemens 3VA5 thermal-magnetic circuit breakers are UL listed for reverse feed applications, allowing flexibility in wiring and installation.
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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