Free Shipping Over $99
Siemens 3VA5145-4ED31-0AA0 Molded Case Circuit Breaker
- 45A
- 3 Pole
- Panel Mount
Siemens
3VA5145-4ED31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5145-4ED31-0AA0
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Siemens 3VA5145-4ED31-0AA0 - 45A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
45A 3 Pole Molded Case Circuit Breaker
45A 3 Pole Molded Case Circuit Breaker
50A 3 Pole Molded Case Circuit Breaker
Description
Designed for heavy-duty applications, the Siemens 3VA5145-4ED31-0AA0 is a 3-pole, 45A molded case circuit breaker utilizing the 125A 3VA51 frame. This breaker installs into Siemens 3VA switchboards, and P1 panels when equipped with an adapter. It replaces the legacy ED63B045 for system upgrades. A built-in TM210 thermal-magnetic trip unit supplies fixed LI protection. The device is rated 25 kAIC at 480V and carries HACR and HID ratings.Specifications
| Brand | Siemens |
|---|---|
| Series | 3VA5 |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 14kA @ 600Y/347VAC, 50kA @ 500VDC |
| Frame Type | 3VA51 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens 3VA Panelboards, Siemens P1 Panelboards (with adapter), Switchboards |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Alarm Switch, Motor Operator, Handle Lock, Padlock Attachment, DIN Rail Adapter |
|---|---|
| Accessories | None (Nut Keeper) |
| Standards | IEC 60947-2, UL 489, HACR, HID |
| Approval | ABS, CE, CSA, cULus, DNV, EAC, Lloyd's, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | Current Limiting, HACR Rated |
Product FAQs
6 answersWhat legacy Siemens circuit breaker does the 3VA5145-4ED31-0AA0 replace?
This 3VA51 frame breaker is the direct replacement for the legacy Siemens ED63B045. It provides an upgraded design for modern electrical systems while maintaining the same 45A and 3-pole configuration.
Which panelboards are compatible with this 45A circuit breaker?
It is designed for direct installation in Siemens 3VA panelboards and switchboards. It can also be installed in Siemens P1 panelboards when equipped with the correct mounting adapter.
What type of trip unit is equipped on the 3VA5145-4ED31-0AA0?
It features a TM210 thermal magnetic trip unit. This provides fixed long-time (overload) and fixed instantaneous (short-circuit) protection functions.
Is this breaker suitable for heating and air conditioning equipment?
Yes, this breaker carries an HACR rating, making it approved for use with heating, air conditioning, and refrigeration equipment. It is also HID rated for high-intensity discharge lighting applications.
What does the Class S designation mean for this breaker?
Class S indicates the standard breaking capacity tier for the 3VA51 frame. This provides a 25kA interrupting rating at 480V and 14kA at 600Y/347V.
What is the physical frame size of the 3VA5145-4ED31-0AA0?
It is built on the Siemens 3VA51 frame, which has a maximum physical capacity of 125 amps. This specific unit is factory-calibrated for a 45-amp continuous load.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
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.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.
Search
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