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Siemens 3VA6340-7JQ31-0AA0 Molded Case Circuit Breaker

  • 400A
  • 3 Pole
  • Panel Mount
Siemens 3VA6340-7JQ31-0AA0
Molded Case Circuit Breaker
Brand Siemens
SKU 3VA6340-7JQ31-0AA0
Select Item Condition
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  • 400A
  • 3 Pole
  • Panel Mount

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Siemens 3VA6340-7JQ31-0AA0 - 400A 3 Pole Molded Case Circuit Breaker

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$5,655.00 In Stock

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Description

Built for advanced facility management, this 400A, 3-pole MCCB offers communication capabilities for modern industrial applications. The Siemens 3VA6340-7JQ31-0AA0 mounts into P4 and P5 panelboards or switchboards. It is equipped with an ETU560 electronic trip unit, delivering adjustable long-time, short-time, instantaneous, and ground-fault (LSIG) protection. Rated at 100kAIC at 480V, this current-limiting breaker ensures superior coordination and system monitoring.

Specifications

Key specifications
Brand Siemens
Part Number 3VA6340-7JQ31-0AA0
Series 3VA6
Amperage 400A
Poles 3
Mounting Style Panel Mount
Voltage 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC
Phase 3
AIC Rating 200kA @ 240VAC, 100kA @ 480Y/277VAC, 100kA @ 480VAC, 35kA @ 600Y/347VAC, 35kA @ 600VAC
Electrical ratings
Amperage Range 160-400A
Fit and installation
Terminal Type Lugs
For Use With Siemens P4, P5 Panelboards, Switchboards, Motor Control Centers
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
Accessories None (Standard)
Standards CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval ABS, CE, CSA, cULus, DNV, GL, Lloyd's, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, Reverse Feed, Current Limiting, Non-Interchangeable Trip, Trip-Free Mechanism

Product FAQs

7 answers
Which Siemens enclosures are compatible with the 3VA6340-7JQ31-0AA0?

This breaker is designed for use in Siemens P4 and P5 panelboards, as well as compatible Siemens switchboards and motor control centers.

What specific adjustments does the LSIG electronic trip unit provide?

The LSIG trip unit allows electricians to configure Long-Time, Short-Time, Instantaneous, and Ground-Fault pickup and delay settings to achieve precise selective coordination in complex distribution systems.

Does this breaker include integrated equipment ground-fault protection?

Yes, the ground-fault (G) function in the electronic trip unit provides adjustable equipment ground-fault protection, eliminating the need for an external ground-fault relay system.

How is the 3VA6340-7JQ31-0AA0 mounted and terminated?

It is a panel-mounted breaker featuring a feed-thru connection type and standard lug terminals for securing the phase conductors.

Can this breaker be applied in systems with high available fault currents at 480V?

Yes, it carries an interrupting rating of 100kA at 480VAC, making it suitable for heavy commercial and industrial systems with high available short-circuit currents.

Is the trip unit on this breaker thermal-magnetic or solid-state?

This breaker features a solid-state electronic trip unit, which offers higher accuracy and more granular adjustability compared to traditional thermal-magnetic trip units.

What breaker family does this part number belong to?

This unit is part of the Siemens SENTRON family, specifically within the 3VA6 frame group of molded case circuit breakers.

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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.