Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Siemens 3VA5330-6EC31-0AA0 Molded Case Circuit Breaker
- 300A
- 3 Pole
- Panel Mount
Siemens
3VA5330-6EC31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5330-6EC31-0AA0
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Siemens 3VA5330-6EC31-0AA0 - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
350A 3 Pole Molded Case Circuit Breaker
400A 3 Pole Molded Case Circuit Breaker
350A 3 Pole Molded Case Circuit Breaker
Description
Built for demanding industrial environments, the Siemens 3VA5330-6EC31-0AA0 is a 3-pole, 300A molded case circuit breaker. As part of the Sentron 3VA53 frame series, it delivers reliable overcurrent protection. This breaker mounts into Siemens 3VA panelboards and switchboards. It can also replace legacy JXD63B300 breakers when paired with the proper retrofit kit. Featuring an H-Class rating of 65kAIC at 480VAC, it utilizes a TM230 trip unit with fixed thermal and adjustable magnetic settings.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5330-6EC31-0AA0 |
| Series | 3VA5 |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 25kA @ 600VAC, 85kA @ 500VDC |
| Amperage Range | 1500-3000A |
|---|
| Frame Type | 3VA53 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens 3VA Panelboards, Siemens P4/P5 Panelboards (with kit), 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, Padlock Attachment, Motor Operator, Rotary Handle, Lug Kits, Busbar System |
|---|---|
| Accessories | None (Sold as frame only) |
| Standards | HACR, IEC 60947-2, UL 489 |
| Approval | ABS, CE, CSA, EAC, RCM, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed, Trip-Free Mechanism |
Product FAQs
7 answersWhich panelboards are compatible with the Siemens 3VA5330-6EC31-0AA0?
This molded case circuit breaker is compatible with Siemens 3VA panelboards, standard switchboards, and Siemens P4 or P5 panelboards when installed with the appropriate mounting kit.
What does the fixed thermal and adjustable magnetic trip mean on this 300A breaker?
It is equipped with a TM230 thermal-magnetic trip unit. The thermal overload protection is fixed at 300A, while the magnetic short circuit protection is adjustable, allowing you to fine-tune the instantaneous trip response to suit the specific demands of your electrical system.
Can the 3VA5330-6EC31-0AA0 be used in direct current systems?
Yes, this model is rated for DC applications up to 500VDC. It provides a maximum interrupting capacity of 85kA when utilized on a 500VDC system.
What is the breaking capacity class of this Siemens breaker?
This unit features a Class H (High) breaking capacity. It provides strong interrupting ratings for commercial and industrial applications, including 65kA at 480V, 25kA at 600V, and 100kA at 240V.
What protection features does the LI trip function offer?
The LI designation indicates Long-Time and Instantaneous protection. The thermal component handles the Long-Time (L) protection against gradual, continuous overloads, while the magnetic component provides Instantaneous (I) protection to quickly clear severe short circuits.
Is the 3VA5330-6EC31-0AA0 suitable for residential load centers?
No, this is an industrial molded case circuit breaker designed for high-capacity power distribution. It will not fit in standard residential load centers and must be installed in compatible Siemens 3VA, P4, or P5 panelboards or switchboards.
What frame size is the 3VA5330-6EC31-0AA0 built on?
This breaker utilizes the Siemens 3VA53 frame, which supports a maximum capacity of 400A. However, this specific model is factory configured for a maximum continuous current of 300A.
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