Free Shipping Over $99
Siemens 3VA5330-5EF31-0AA0 Molded Case Circuit Breaker
- 300A
- 3 Pole
- Panel Mount
Siemens
3VA5330-5EF31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5330-5EF31-0AA0
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Siemens 3VA5330-5EF31-0AA0 - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
300A 3 Pole Molded Case Circuit Breaker
300A 3 Pole Molded Case Circuit Breaker
350A 3 Pole Molded Case Circuit Breaker
Description
Engineered for commercial and industrial applications, the Siemens 3VA5330-5EF31-0AA0 is a 3-pole, 300A molded case circuit breaker from the Sentron 3VA53 frame family. This panel mount breaker installs into Siemens P3, P4, and P5 panelboards or switchboards. With the appropriate mounting kit, it serves as a replacement for legacy JD63B300 breakers. Rated for 35kAIC at 480VAC, this M-Class breaker features a TM240 trip unit with adjustable thermal and adjustable magnetic settings.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5330-5EF31-0AA0 |
| Series | 3VA5 |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 85kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC, 50kA @ 500VDC |
| Amperage Range | 210-300A |
|---|
| Frame Type | 3VA53 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P3, P4, P5 Panelboards, Switchboards |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable 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, HACR Rated |
| Approval | ABS, CE, CSA, EAC, IEC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
7 answersCan the Siemens 3VA5330-5EF31-0AA0 replace older JD-frame breakers?
Yes, this 3VA53 frame breaker can serve as a direct replacement for legacy JD63B300 circuit breakers when installed with the appropriate retrofit mounting strap kit.
What equipment is the 3VA5330-5EF31-0AA0 designed to be installed in?
It is engineered for panel-mount installation in Siemens P3, P4, and P5 power panelboards and switchboards. It requires the correct mounting hardware or strap kit for proper bus connection.
How does the TM240 trip unit on this breaker function?
The TM240 is a thermal-magnetic trip unit that provides both adjustable continuous current (thermal) and adjustable instantaneous (magnetic) trip settings, allowing for precise coordination with your system's load and fault requirements.
What wire sizes are compatible with the 3VA53 frame lug kits?
Wire capacity depends on the specific lug kit installed. For example, standard single-cable aluminum lugs (like the 3VA9373-0JB13 kit) accept 1 AWG to 600 kcmil copper or aluminum wire, while 2-cable lugs (like the 3VA9473-0JJ23) accept 2/0 AWG to 600 kcmil.
Can the 3VA5330-5EF31-0AA0 be reverse fed?
Yes, this breaker features a non-interchangeable trip unit that is suitable for reverse-feed applications, allowing line power to be connected to either the top or bottom terminals.
What breaking capacity class does the 3VA5330-5EF31-0AA0 belong to?
This model is an M-Class (Medium breaking capacity) breaker within the Sentron 3VA5 series, which dictates its specific short-circuit performance profile across different voltage levels.
Is this breaker HACR rated?
Yes, the 3VA5330-5EF31-0AA0 is HACR rated, meaning it is certified for use with heating, air conditioning, and refrigeration equipment that requires group motor protection.
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