Siemens 3VA5340-5EF31-0AA0 400 Amp 3-Pole Molded Case Circuit Breaker – Panel Mount – 240/480/600VAC Rated

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SKU: 3VA5340-5EF31-0AA0 GTIN/UPC: 804766793288
Regular price $1,939.29
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The Siemens 3VA5340-5EF31-0AA0 is a high-capacity molded case circuit breaker (MCCB) from the SENTRON 3VA5 series, engineered for demanding industrial and commercial power distribution systems. Built on the robust 3VA53 frame, this 400A, 3-pole breaker provides reliable long-time and instantaneous (LI) protection using a TM240 thermal-magnetic trip unit with adjustable thermal and adjustable magnetic settings. It is designed to handle high fault current conditions and ensures dependable protection for feeder and distribution circuits in complex electrical installations.

This breaker installs into Siemens 3VA panelboards and switchboards and serves as a direct replacement for legacy JD63B400 breakers, making it suitable for retrofit and upgrade applications in existing infrastructure.

Voltage and Rating

  • Current Rating: 400 Amps
  • Voltage Rating: 240VAC, 480VAC, 600VAC
  • Phase: 3-Phase
  • Frequency: 50/60 Hz
  • AIC Rating:
    • 85kA @ 240VAC
    • 35kA @ 480VAC
    • 18kA @ 600VAC

Key Specifications

  • Breaker Type: Molded Case Circuit Breaker (MCCB)
  • Series: SENTRON 3VA5
  • Family: 3VA
  • Part Number: 3VA5340-5EF31-0AA0
  • Frame Size: 3VA53 Frame
  • Number of Poles: 3-Pole
  • Mounting Style: Panel Mount
  • Terminal Type: Lugs
  • Trip Technology: Thermal Magnetic
  • Trip Unit: TM240
  • Trip Function Code: LI
  • Trip Function: Long-Time and Instantaneous Protection
  • Trip Adjustability: Adjustable Thermal, Adjustable Magnetic
  • Protection Type: Thermal Magnetic

Technical Specifications

  • Breaking Capacity Class: High fault performance
  • Application: Industrial and Commercial Power Distribution
  • Compatibility: Siemens 3VA Panelboards, Switchboards
  • Construction Features: HACR Rated, Reverse Feed

Standards and Approvals

  • Standards: IEC 60947-2, UL 489, HACR
  • Approvals: UL, CSA, CE, EAC, RCM, VDE, ABS, CCC

Product Data

  • Manufacturer: Siemens
  • Series: SENTRON 3VA5
  • Part Number: 3VA5340-5EF31-0AA0

Applications

  • Industrial Power Distribution Systems
  • Commercial Electrical Installations
  • Panelboards and Switchboards
  • Motor Control Centers
  • Feeder Circuit Protection
  • Branch Circuit Protection
  • High Fault Current Applications
  • Heavy Electrical Load Distribution
  • Critical Infrastructure Systems
  • Retrofit and Upgrade Projects


  • Type Circuit Breakers
  • Vendor Siemens / ITE
  • Brand Siemens

Returns are easy

You may return items within 30 days of delivery for a refund.

FREE Shipping on orders over $149.

My Circuit Breakers offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

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In rare circumstances, My Circuit Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.