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SIEMENS

JXD23B350 - 350Amp Circuit Breaker

JXD23B350 - 350Amp Circuit Breaker

Regular price $2,350.00 USD
Regular price Sale price $2,350.00 USD
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JXD23B350 - 350Amp Circuit Breaker

The JXD23B350 has a 350A rating, three poles, and a JXD2-A type designation—three useful identifiers when you’re checking a replacement for electrical equipment already in service. The JXD23B350 is built to last, with the focus here remaining on what matters for replacement work: correct form, fit, electrical ratings, trip arrangement, and connections.

Key Features and Benefits

  • 350A current rating for equipment requiring this specific amperage.
  • Three-pole configuration provides a clear compatibility checkpoint.
  • Type JXD2-A identification helps confirm the required breaker type.
  • Non-interchangeable trip unit as specified for this breaker.
  • Load-side lugs are included, an important connection detail to verify during replacement.
  • Well suited to form, fit, and function as a replacement in compatible existing and legacy electrical equipment.

Technical Specifications

  • Part Number: JXD23B350
  • Product Type: Molded Case Circuit Breaker
  • Type: JXD2-A
  • Amperage: 350A
  • Number of Poles: 3
  • Trip Unit: Non-interchangeable
  • A.I.C. Rating: 65 kA at 240VAC
  • Additional Published DC Rating: 30 kA at 250VDC for two-pole applications only
  • Load-Side Lugs: Included
  • Width: 7.50 in.
  • Height / Length: 11.00 in.
  • Depth: 4.00 in.
  • Overall Dimensions: 7.50 in. W × 11.00 in. L × 4.00 in. D
  • Approximate Ship Weight: 18.00 lb

Material Compliance and Certifications

No specific material-compliance information or certifications were included in the supplied specifications for the JXD23B350. UL, CSA, IEC, RoHS, REACH, or other certifications should therefore not be assumed. If a particular approval or compliance requirement applies to the installation, confirm it using the appropriate product documentation before installation.

Where It Works Best

The JXD23B350 is suited to compatible existing and legacy electrical equipment calling for a 350A, three-pole Type JXD2-A molded case circuit breaker with a non-interchangeable trip unit and the stated 65 kA rating at 240VAC. Its included load-side lugs and published case dimensions provide additional details for checking compatibility with an existing installation.


Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.

Siemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are NOT supplied by Siemens AG or its affiliates.

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