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Siemens 3VA5150-5EC31-0AA0 Molded Case Circuit Breaker
- 50A
- 3 Pole
- Panel Mount
Siemens
3VA5150-5EC31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5150-5EC31-0AA0
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Siemens 3VA5150-5EC31-0AA0 - 50A 3 Pole Molded Case Circuit Breaker
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50A 3 Pole Molded Case Circuit Breaker
50A 3 Pole Molded Case Circuit Breaker
Description
Engineered for industrial power distribution, the Siemens 3VA5150-5EC31-0AA0 is a 3-pole, 50A molded case circuit breaker built on the 125A frame. It delivers reliable line protection for commercial and industrial facilities. This panel mount breaker installs into Siemens P1, P2, and P3 panelboards using the appropriate adapter, and serves as a direct upgrade for legacy ED43B050 and ED63B050 devices.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5150-5EC31-0AA0 |
| Series | 3VA5 |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 85kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards (requires adapter), Switchboards, Enclosures |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Lug Kits, Padlock Attachment |
|---|---|
| Accessories | None (Standard 0AA0 suffix indicates no auxiliary switches or releases) |
| Standards | HACR, IEC 60947-2, UL 489 |
| Approval | CE, CSA, EAC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated |
Product FAQs
7 answersWhat legacy Siemens breakers does the 3VA5150-5EC31-0AA0 replace?
This 3VA5 breaker serves as a direct upgrade for legacy Siemens ED43B050 and ED63B050 50A circuit breakers.
Which Siemens panelboards are compatible with this 3VA5 breaker?
The 3VA5150-5EC31-0AA0 can be installed in Siemens P1, P2, and P3 panelboards. Note that a specific mounting adapter is required for panelboard installation.
What frame size is the 3VA5150-5EC31-0AA0 built on?
This 50A circuit breaker is built on the Siemens 3VA5 125A frame platform.
What does the LI trip function indicate on this breaker?
The LI designation means this thermal-magnetic breaker includes Long-Time (overload) and Instantaneous (short-circuit) trip functions.
Are the trip settings adjustable on this breaker?
This breaker features a fixed thermal setting for overload protection and an adjustable magnetic setting for short-circuit protection.
Is this 3VA5 breaker suitable for DC applications?
Yes, this thermal-magnetic molded case circuit breaker is rated for both AC and DC voltage systems, supporting up to 500V DC.
Can the 3VA5150-5EC31-0AA0 be reverse fed?
Yes, all Siemens 3VA5 thermal-magnetic circuit breakers are UL listed for reverse feed applications, allowing for flexible installation orientation.
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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