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Siemens 3VA6340-5HM31-0AA0 Molded Case Circuit Breaker

  • 400A
  • 3 Pole
  • Panel Mount
Siemens 3VA6340-5HM31-0AA0
Molded Case Circuit Breaker
Brand Siemens
SKU 3VA6340-5HM31-0AA0
Select Item Condition
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  • 400A
  • 3 Pole
  • Panel Mount

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Siemens 3VA6340-5HM31-0AA0 - 400A 3 Pole Molded Case Circuit Breaker

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$3,828.00 In Stock

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Description

Engineered for demanding industrial and marine applications, this 3-pole, 400A Siemens Sentron 3VA6 circuit breaker delivers reliable electronic trip protection. It mounts into Siemens P4 and P5 panelboards, switchboards, and motor control centers. The breaker includes a nut keeper kit and supports reverse feed configurations. Featuring an ETU330 electronic trip unit, it provides adjustable long-time, instantaneous, and ground-fault (LIG) protection with a 35 kAIC rating at 480V.

Specifications

Key specifications
Brand Siemens
Part Number 3VA6340-5HM31-0AA0
Series 3VA6
Amperage 400A
Poles 3
Mounting Style Panel Mount
Voltage 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC
Phase 3
AIC Rating 100kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 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 LIG
Trip Function Long-Time, Instantaneous, Ground Fault
Trip Adjustability Adjustable
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Padlock Attachment, Lugs, Nut Keeper Kit
Accessories Nut Keeper Kit
Standards IEC 60947-2, UL 489
Approval CCC, CE, CSA, EAC, IEC, UL, VDE
Temp Rating -25C to 70C
Construction Features Current Limiting, HACR Rated, Reverse Feed, Visual Trip Indicator

Product FAQs

6 answers
What is the adjustable amperage range for the 3VA6340-5HM31-0AA0?

The integrated ETU330 electronic trip unit allows the continuous current, or Long-Time setting, to be adjusted from 160A up to the maximum 400A frame rating.

What does the LIG trip function code indicate on this breaker?

The LIG designation means the electronic trip unit provides adjustable Long-Time, Instantaneous, and Ground-Fault protection. This allows for precise coordination against overloads, short circuits, and ground faults.

Which Siemens panelboards are compatible with this 400A breaker?

This 3VA6 frame circuit breaker is designed for use with Siemens P4 and P5 panelboards, as well as compatible Siemens switchboards and motor control centers.

Can the trip unit settings be configured in the field?

Yes, the ETU330 trip unit features rotary adjustment dials on the front face of the breaker. This allows electricians to easily configure the Long-Time, Instantaneous, and Ground-Fault pickup levels during installation.

What type of ground fault protection does this breaker provide?

The integrated Ground-Fault function provides equipment protection by monitoring for unintended leakage current to ground. If the ground fault current exceeds the configured pickup setting, the breaker will trip to prevent equipment damage.

Can the 3VA6340-5HM31-0AA0 replace older Siemens 400A breakers?

The 3VA6 series is the current generation replacement for legacy Siemens Sentron 400A frames. When retrofitting this breaker into an older enclosure, you may need an updated mounting strap kit designed specifically for the 3VA6 frame.

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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.