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Siemens 3VA5145-6EC31-0AA0 Molded Case Circuit Breaker
- 45A
- 3 Pole
- Panel Mount
Siemens
3VA5145-6EC31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5145-6EC31-0AA0
Quantity
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Siemens 3VA5145-6EC31-0AA0 - 45A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for industrial applications, the Siemens 3VA5145-6EC31-0AA0 is a 3-pole molded case circuit breaker from the SENTRON 3VA5 family. This panel mount MCCB installs into Siemens 3VA and P1 panelboards. It serves as a drop-in replacement for the discontinued HED63B045, offering modernized protection in a compact 125A frame. The breaker features a TM230 thermal-magnetic trip unit with fixed thermal and adjustable magnetic settings. It delivers a Class H breaking capacity of 65kA at 480V.Specifications
| Brand | Siemens |
|---|---|
| Series | 3VA5 |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 150kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 100kA @ 500VDC |
| Frame Type | 3VA51 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens 3VA Panelboards, Siemens P1 Panelboards (requires mounting kit) |
| 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, Handle Lock, Padlock Attachment |
|---|---|
| Accessories | None (Nut Keeper Only) |
| 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, Class H Breaking Capacity, HID Rated |
Product FAQs
5 answersWhat older Siemens circuit breaker does the 3VA5145-6EC31-0AA0 replace?
This 3VA5 series breaker serves as a modernized replacement for the discontinued Siemens HED63B045, offering updated protection within a compact 125A frame.
What is the breaking capacity class for this circuit breaker?
The 3VA5145-6EC31-0AA0 features a Class H breaking capacity, which corresponds to its 65kA interrupt rating at 480VAC.
How is the TM230 trip unit configured on this model?
The integrated TM230 thermal-magnetic trip unit provides a fixed thermal setting for overload protection and an adjustable magnetic setting for short-circuit protection.
Is this breaker rated for use with HVAC equipment?
Yes, the 3VA5145-6EC31-0AA0 is HACR rated, meaning it is certified for safe use with heating, air conditioning, and refrigeration systems.
What are the physical dimensions of the 3VA5145-6EC31-0AA0?
This 3-pole breaker measures approximately 5.5 inches in height, 3.0 inches in width, and 3.7 inches in depth.
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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