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Siemens 3VA5140-5EC31-0AA0 Molded Case Circuit Breaker
- 40A
- 3 Pole
- Panel Mount
Siemens
3VA5140-5EC31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5140-5EC31-0AA0
Quantity
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Siemens 3VA5140-5EC31-0AA0 - 40A 3 Pole Molded Case Circuit Breaker
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40A 3 Pole Molded Case Circuit Breaker
40A 3 Pole Molded Case Circuit Breaker
40A 3 Pole Molded Case Circuit Breaker
Description
Delivering medium-tier breaking capacity, this 3-pole 40A MCCB is rated for 35kAIC at 480VAC. The 3VA5140-5EC31-0AA0 utilizes a TM230 thermal-magnetic trip unit, combining fixed overload protection with adjustable short-circuit response. Designed for integration into Siemens P1, P2, and P3 panelboards, it provides a seamless upgrade path for older CED63B040 breakers. This current-limiting, HACR-rated device ensures reliable LI protection for demanding commercial and industrial environments.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5140-5EC31-0AA0 |
| Series | 3VA5 |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 85kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 85kA @ 500VDC |
| 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 | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Handle Lock, Padlock Attachment, DIN Rail Adapter, Lug Kits |
|---|---|
| Accessories | None (No Lugs Included) |
| Standards | IEC 60947-2, UL 489, CSA C22.2 No. 5 |
| Approval | ABS, CE, CSA, EAC, IEC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed |
Product FAQs
7 answersWhich panelboards are compatible with the 3VA5140-5EC31-0AA0 circuit breaker?
This breaker is designed for integration into Siemens P1, P2, and P3 panelboards, as well as Siemens switchboards.
What legacy Siemens breakers does the 3VA5140-5EC31-0AA0 replace?
The 3VA51 frame serves as the modern replacement for legacy Siemens ED frame circuit breakers, providing a direct upgrade path for older models like the CED63B040.
Is the 3VA5140-5EC31-0AA0 rated for use in DC power systems?
Yes, this breaker is rated for DC applications up to 500VDC, providing an 85kA interrupting rating when properly wired for DC networks.
What does the Feed-Thru connection type mean for this breaker?
A feed-thru connection means the breaker does not plug or bolt directly onto a panelboard busbar. Instead, it uses wire lugs on both the line and load sides, making it suitable for standalone panel mounting or specialized adapter installations.
How does the thermal-magnetic trip unit function on this breaker?
It provides fixed thermal overload protection (Long-Time) and adjustable magnetic short-circuit protection (Instantaneous), allowing you to fine-tune the instantaneous trip response for your specific application.
What does the 35kA at 480V interrupting rating signify for this breaker?
It indicates a Class M (Medium) breaking capacity, meaning the breaker can safely interrupt up to 35,000 amps of fault current in a 480VAC system without sustaining damage.
Is the 3VA5140-5EC31-0AA0 HACR rated?
Yes, this breaker is HACR rated, making it suitable for use with 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