Siemens 3VA5340-7EF31-0AA0 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Panel Mount
Siemens
3VA5340-7EF31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5340-7EF31-0AA0
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Siemens 3VA5340-7EF31-0AA0 - 400A 3 Pole Molded Case Circuit Breaker
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Description
Designed for maximum flexibility, the Siemens 3VA5340-7EF31-0AA0 is a 3-pole, 400A molded case circuit breaker. It provides essential power distribution for demanding industrial applications. This panel mount breaker is compatible with Siemens 3VA panelboards and switchboards. It is also a replacement for legacy CJD63B400 breakers, allowing for seamless integration into older systems. The TM240 trip unit allows for adjustable thermal (320-400A) and magnetic settings with a 100 kAIC capacity.Specifications
| Brand | Siemens |
|---|---|
| Part Number | 3VA5340-7EF31-0AA0 |
| Series | 3VA5 |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 35kA @ 600VAC |
| Amperage Range | 320-400A |
|---|
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens 3VA 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, Rotary Handle, Padlock Attachment |
|---|---|
| Accessories | Nut Keeper |
| Standards | IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, High Interrupting Capacity |
Product FAQs
6 answersWhat legacy Siemens breaker does the 3VA5340-7EF31-0AA0 replace?
This 400A 3VA5 series breaker can serve as a direct replacement for legacy Siemens CJD63B400 molded case circuit breakers, allowing for seamless integration into existing electrical systems.
What are the trip unit adjustment ranges for the 3VA5340-7EF31-0AA0?
Equipped with a TM240 thermal-magnetic trip unit, this breaker offers adjustable thermal overload protection (Ir) from 320A to 400A, and adjustable instantaneous short-circuit protection (Ii) from 5 to 10 times the rated current.
Which panelboards are compatible with this 400A circuit breaker?
The 3VA5340-7EF31-0AA0 is designed for use with Siemens 3VA series panelboards and switchboards.
What is the breaking capacity class of this Siemens 3VA5 breaker?
This unit features a Class C breaking capacity, delivering a high interrupting rating of 100kA at 480VAC and 200kA at 240VAC for demanding industrial power distribution applications.
How is this circuit breaker installed in a panelboard?
The 3VA5340-7EF31-0AA0 is a panel-mount breaker designed for fixed, bolt-on installation within compatible Siemens distribution equipment.
What frame size does the 3VA5340-7EF31-0AA0 belong to?
This breaker is built on the Siemens 3VA53 frame, which is a UL Frame 400 designed for medium to high-power commercial and industrial distribution systems.
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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