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Siemens 3VA6340-6JQ31-0AA0 Molded Case Circuit Breaker

  • 400A
  • 3 Pole
  • Panel Mount
Siemens 3VA6340-6JQ31-0AA0
Molded Case Circuit Breaker
Brand Siemens
SKU 3VA6340-6JQ31-0AA0
Select Item Condition
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  • 400A
  • 3 Pole
  • Panel Mount

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Siemens 3VA6340-6JQ31-0AA0 - 400A 3 Pole Molded Case Circuit Breaker

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$5,365.00 In Stock

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Description

Engineered for comprehensive system protection, the 3VA6340-6JQ31-0AA0 is a 400A, 3-pole MCCB from Siemens. It is designed for commercial power distribution systems, mounting seamlessly into Siemens P3, P4, and P5 panelboards. This unit also serves as a modern replacement for legacy VL HJG3B400 and Sentron HJD63B400 breakers. Featuring an advanced ETU560 LSIG electronic trip unit, it provides adjustable long-time, short-time, instantaneous, and ground-fault protection with a 65kAIC rating.

Specifications

Key specifications
Brand Siemens
Part Number 3VA6340-6JQ31-0AA0
Series 3VA6
Amperage 400A
Poles 3
Mounting Style Panel Mount
Voltage 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 22kA @ 600Y/347VAC, 22kA @ 600VAC
Electrical ratings
Amperage Range 160-400A
Fit and installation
Terminal Type Lugs
For Use With Siemens P3, P4, P5 Panelboards, Switchboards
Protection and operation
Trip Technology Electronic Trip
Trip Function Code LSIG
Trip Function Long-Time, Short-Time, Instantaneous, Ground Fault
Trip Adjustability Adjustable
Standards and features
Available Options Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Motor Operator, Communication Module, Lug Kits, Nut Keeper Kit
Accessories Nut Keeper Kit
Standards CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval CE, CSA, IEC, UL, VDE
Temp Rating -25C to 70C
Construction Features HACR Rated, Reverse Feed, Metering Function, Communication Capable

Product FAQs

6 answers
Which Siemens panelboards are compatible with the 3VA6340-6JQ31-0AA0?

This 400A 3VA6 breaker is designed to mount into Siemens P3, P4, and P5 panelboards, as well as Siemens switchboards. Note that specific mounting strap kits or hardware may be required depending on your panel's configuration.

What does the LSIG designation mean on this breaker's trip unit?

LSIG indicates that the ETU560 electronic trip unit provides Long-time, Short-time, Instantaneous, and Ground-fault protection. This allows for precise selective coordination and integrated ground-fault monitoring without the need for external relays.

Is the amperage on the 3VA6340-6JQ31-0AA0 adjustable?

Yes, the ETU560 electronic trip unit features an adjustable continuous current setting (Ir). For this 400A frame, the overload protection can be dialed down from 400A to as low as 160A to match your specific load requirements.

Can the 3VA6340-6JQ31-0AA0 replace older Siemens 400A breakers?

Yes, this 3VA6 series breaker serves as a modern replacement for legacy Siemens VL series HJG3B400 and Sentron series HJD63B400 molded case circuit breakers.

Is the 3VA6340-6JQ31-0AA0 rated for 100% continuous operation?

No, the -0AA0 suffix in the catalog number indicates that this is a standard 80% rated circuit breaker. For a 100% rated version, a different catalog number ending in -2AA0 would be required.

How are the trip settings configured on the 3VA6340-6JQ31-0AA0?

The integrated ETU560 trip unit includes an LCD screen that allows electricians to precisely configure the Long-time, Short-time, Instantaneous, and Ground-fault parameters, as well as view diagnostic data directly on the face of the breaker.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 2 reviews
Rating
Ratings
2 reviews
  • PM
    Pete M.
    Verified Buyer
    Reviewing
    Siemens 3VA9243-0JB12 Lug kit
    I recommend this product
    Rated 5 out of 5 stars
    9/17/26
    Great price and avail

    Great price and showed up when I needed it.

  • RS
    Rochelle S.
    Verified Buyer
    Reviewing
    Siemens 3VA6225-5HL31-0AA0 - 250A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    10/2/25
    Smooth Transaction, Great Seller, Solid product

    I've ordered from SuperBreakers a couple times over the years. They have great customer service, knowledgeable employees, and I got my breaker in the expected timeline. I HIGHLY RECOMMEND this shop if you are a fellow circuit breaker enthusiast!

    Siemens makes a reliable product. Y'all already know.