Siemens 3VA5125-4EC31-0AA0 Molded Case Circuit Breaker
- 25A
- 3 Pole
- Panel Mount
Siemens
3VA5125-4EC31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5125-4EC31-0AA0
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Siemens 3VA5125-4EC31-0AA0 - 25A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for industrial applications, the Siemens 3VA5125-4EC31-0AA0 delivers reliable 3-pole, 25A circuit protection. It utilizes a TM230 trip unit, providing fixed thermal and adjustable magnetic settings. This molded case breaker achieves a 25kAIC capacity at 480VAC. It installs into Siemens P1 and P2 panelboards or switchboards. With the proper mounting kit, it replaces legacy ED63B025 breakers. The current-limiting, HACR-rated design minimizes fault energy to ensure system safety.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5125-4EC31-0AA0 |
| Series | 3VA5 |
| Amperage | 25A |
| 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, 25kA @ 500VDC |
| Frame Type | 125A |
|---|---|
| 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, Adjustable Magnetic |
| Available Options | Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Motor Operator, Rotary Handle, Lugs |
|---|---|
| Accessories | Lugs Not Included |
| Standards | HACR, IEC 60947-2, UL 489 |
| Approval | CE, CSA, EAC, IEC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting |
Product FAQs
6 answersWhich panelboards are compatible with the 3VA5125-4EC31-0AA0 circuit breaker?
This 125A frame breaker is designed for installation in Siemens P1 and P2 panelboards, as well as Siemens switchboards.
Can the 3VA5125-4EC31-0AA0 replace older Siemens ED-frame breakers?
Yes. With the appropriate mounting kit, the 3VA51 frame can be used to replace legacy ED-frame breakers, such as the ED63B025, in existing Siemens panels.
How do you adjust the trip settings on the 3VA5125-4EC31-0AA0?
This breaker features a thermal-magnetic trip unit with a fixed thermal overload and an adjustable instantaneous magnetic short-circuit pickup. The magnetic trip can be adjusted using the dial on the front face to coordinate with downstream loads.
Is the 3VA5125-4EC31-0AA0 suitable for reverse feed applications?
Yes. Siemens 3VA5 thermal-magnetic molded case circuit breakers are UL listed for reverse feed applications, allowing power to be supplied from either the line or load side.
Can the 3VA5125-4EC31-0AA0 be used in direct current (DC) systems?
Yes. This thermal-magnetic breaker is rated for DC applications, providing a 25kA interrupting rating at 500VDC. When applying three-pole breakers on 500VDC systems, the power supply must be connected in a zig-zag configuration through all three poles to ensure uniform voltage distribution.
Is the 3VA5125-4EC31-0AA0 HACR rated?
Yes. All Siemens 3VA5 molded case circuit breakers are HACR rated per UL standards, making them suitable for protecting heating, air conditioning, and refrigeration equipment.
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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