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Siemens 3VA5150-5EF31-0AA0 Molded Case Circuit Breaker
- 50A
- 3 Pole
- Panel Mount
Siemens
3VA5150-5EF31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5150-5EF31-0AA0
Quantity
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Siemens 3VA5150-5EF31-0AA0 - 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
50A 3 Pole Molded Case Circuit Breaker
Description
Belonging to the SENTRON 3VA5 series, this 3-pole molded case circuit breaker delivers robust protection for industrial environments. It utilizes a TM240 ATAM trip unit, allowing users to adjust both thermal and magnetic settings. Designed for panel mounting, the breaker fits Siemens P1, P2, and P3 panelboards. It acts as a modern cross-reference for the discontinued CED63B050. It ships without lugs installed. With a 35kAIC rating at 480V, this 125A-frame MCCB is HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5150-5EF31-0AA0 |
| 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, 50kA @ 500VDC |
| Amperage Range | 40-50A |
|---|
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, DIN Rail Adapter, Padlock Attachment |
|---|---|
| Accessories | None (No Lugs Included) |
| Standards | IEC 60947-2, UL 489, HACR |
| Approval | ABS, CE, CSA, DNV, EAC, IEC, KR, Lloyd's, RCM, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
8 answersWhich Siemens panelboards are compatible with the 3VA5150-5EF31-0AA0 circuit breaker?
This 3-pole breaker is designed for installation in Siemens P1, P2, and P3 panelboards, as well as Siemens switchboards.
Can the Siemens 3VA5150-5EF31-0AA0 be used in DC electrical systems?
Yes, this breaker is rated for DC applications. It provides an interrupting capacity of 50kA at 500VDC, making it suitable for non-motorized DC loads.
How does the trip unit on the 3VA5150-5EF31-0AA0 operate?
It features a TM240 thermal-magnetic trip unit with both adjustable thermal (long-time) and adjustable magnetic (instantaneous) settings, allowing electricians to fine-tune overload and short-circuit protection.
What frame size is the 3VA5150-5EF31-0AA0 built on?
This 50A breaker is built on the Siemens 3VA51 frame platform, which has a maximum continuous current rating of 125A.
Is the 3VA5150-5EF31-0AA0 suitable for reverse feed applications?
Yes, all Siemens 3VA5 thermal-magnetic circuit breakers are UL listed for reverse feed installations.
Can the 3VA5150-5EF31-0AA0 replace older Siemens ED-frame breakers?
Yes, the 3VA5 series serves as a modern cross-reference for discontinued legacy breakers like the CED63B050. Note that mounting hardware or strap kits may need to be updated when retrofitting older panelboards.
Is this 50A Siemens 3VA5 breaker HACR rated?
Yes, this molded case circuit breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.
What breaking capacity class does the 3VA5150-5EF31-0AA0 fall under?
The digit 5 following the hyphen in the catalog number designates it as a Class M breaker, which provides a medium interrupting capacity of 35kA at 480V.
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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