Siemens 3VA5340-7EC31-0AA0 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Panel Mount
Siemens
3VA5340-7EC31-0AA0
Molded Case Circuit Breaker
Brand
Siemens
SKU
3VA5340-7EC31-0AA0
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Siemens 3VA5340-7EC31-0AA0 - 400A 3 Pole Molded Case Circuit Breaker
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Description
Built for industrial environments, the Siemens 3VA5340-7EC31-0AA0 is a 3-pole, 400A molded case circuit breaker from the SENTRON family. It delivers robust power distribution for commercial facilities. This panel mount breaker integrates with Siemens 3VA panelboards and switchboards. Using a retrofit kit, it serves as a replacement for legacy HHJXD63B400 breakers to simplify system upgrades. Rated for 100 kAIC at 480VAC, it features a TM230 trip unit and Class C breaking capacity.Specifications
| Brand | Siemens |
|---|---|
| Series | 3VA5 |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 35kA @ 600VAC |
| 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 | Fixed Thermal, Adjustable Magnetic |
| Available Options | Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Motor Operator, Rotary Handle, Padlock Attachment |
|---|---|
| Accessories | Nut Keeper |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, UL 489 |
| Approval | CE, CSA, EAC, UL, VDE |
| Temp Rating | -25C to 70C |
| Construction Features | Reverse Feed, HACR Rated |
Product FAQs
6 answersCan I use the 3VA5340-7EC31-0AA0 to replace an older HHJXD63B400 breaker?
Yes, this 3VA5 series breaker is the modern replacement for legacy HHJXD63B400 Sentron JD-frame breakers. You will need a retrofit strap kit to install it in existing Siemens panelboards or switchboards.
What type of enclosures or panels is this 400A breaker compatible with?
It is designed for direct use in Siemens 3VA panelboards and switchboards. When upgrading older systems, specific mounting strap kits are required to fit the 3VA53 frame into existing distribution sections.
How does the TM230 thermal-magnetic trip unit operate on this breaker?
The TM230 trip unit provides LI (Long-Time and Instantaneous) protection. It features a fixed thermal setting for overload protection at 400A and an adjustable magnetic setting for short-circuit protection. The instantaneous pickup can be adjusted from 5 to 10 times the continuous current rating (2000A to 4000A).
What does the Class C breaking capacity indicate for the 3VA5340-7EC31-0AA0?
The Class C designation means this breaker has a very high interrupting capacity. It is specifically rated to safely clear fault currents up to 100kA at 480VAC and 200kA at 240VAC.
Is the 3VA5340-7EC31-0AA0 suitable for reverse feed applications?
Yes, this breaker is rated for reverse feed applications. This allows for greater flexibility when routing line and load connections within your panelboard or switchboard.
Is this breaker HACR rated for HVAC applications?
Yes, the 3VA5340-7EC31-0AA0 is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment group motor installations.
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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