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Siemens 3VA5445-6EC31-0AA0 Molded Case Circuit Breaker
- 450A
- 3 Pole
- Panel Mount
Siemens
3VA5445-6EC31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5445-6EC31-0AA0
Quantity
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Siemens 3VA5445-6EC31-0AA0 - 450A 3 Pole Molded Case Circuit Breaker
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Description
Designed for heavy-duty industrial applications, the Siemens 3VA5445-6EC31-0AA0 is a 450A molded case circuit breaker from the SENTRON 3VA5 family. This panel-mount breaker installs into Siemens P4 and P5 panelboards. With a mounting kit, it serves as an exact replacement for discontinued HLD63B450 breakers. Featuring a 65 kAIC rating at 480VAC, it includes a TM230 thermal-magnetic trip unit. This current-limiting breaker provides fixed long-time and adjustable instantaneous protection.Specifications
| Brand | Siemens |
|---|---|
| Series | 3VA5 |
| Amperage | 450A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | 3VA54 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4, P5 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, Padlock Attachment, Lug Kits |
|---|---|
| Accessories | None (No Lugs Included) |
| Standards | IEC 60947-2, UL 489, CSA C22.2 No. 5 |
| Approval | CCC, CE, CSA, EAC, IEC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
6 answersDoes the 3VA5445-6EC31-0AA0 come with lug terminals installed?
No. While this breaker series utilizes lug connections, the 0AA0 suffix indicates this specific unit is supplied bare, without lugs. You will need to purchase the appropriate lug kits separately based on your wire size and material.
Can the 3VA5445-6EC31-0AA0 replace older Siemens Sentron breakers?
Yes. With the correct mounting kit, this 3VA5 series breaker serves as a direct replacement for the discontinued HLD63B450 circuit breaker.
What type of trip unit is included with the 3VA5445-6EC31-0AA0?
This breaker features a TM230 thermal magnetic trip unit. It provides fixed long-time thermal protection and adjustable instantaneous magnetic protection for precise system coordination.
What is the frame size of this circuit breaker?
The 3VA5445-6EC31-0AA0 is built on the Siemens 3VA54 frame. While this specific unit is configured with a 450A trip rating, the 3VA54 frame supports a maximum capacity of 600 amps.
What does the 6 in the catalog number 3VA5445-6EC31-0AA0 indicate?
The 6 designates this as a Class H high breaking capacity breaker. This classification confirms its interrupting rating of 65 kAIC at 480V and 25 kAIC at 600V.
What are the physical dimensions of the 3VA5445-6EC31-0AA0 breaker?
This 3-pole molded case circuit breaker measures 9.8 inches high, 5.4 inches wide, and 5.4 inches deep.
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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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