Siemens

Siemens / ITE MD63B500 500A 3 Pole Molded Case Circuit Breaker – Bolt On – 600VAC

In stock
SKU: MD63B500-NS
$13,699.00
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1 year warranty
30 day returns

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The Siemens / ITE MD63B500 is a reliable molded case circuit breaker designed for industrial and commercial electrical distribution systems requiring efficient protection. Built on the MD frame platform, it features a thermal magnetic interchangeable trip unit that ensures accurate and dependable response to overload and short circuit conditions. With a 500 ampere rating, 3-pole configuration, and bolt-on mounting, this breaker is ideal for switchgear, feeder circuits, and medium-capacity power distribution applications operating across 240V, 480V, and 600V AC systems.

Product Specifications

  • Brand: Siemens / ITE
  • Model: MD63B500
  • Amperage: 500 Ampere
  • Number of Poles: 3 Pole
  • Breaker Type: Molded Case Circuit Breaker
  • Mount Type: Bolt On
  • Frame Style: MD Frame
  • Trip Unit Type: Thermal Magnetic Interchangeable Trip Unit

Technical Specifications

  • Operating Temperature: 40 Degree Celsius
  • Frequency: 50/60Hz
  • Connection Type: Bolt On
  • Terminal Type: Line and Load End Terminals Standard
  • Lug Type: Standard Line and Load
  • Trip Setting Range: 3000-6000
  • Protection Type: Overload and Short Circuit Protection
  • Application: Industrial Power Distribution, Switchgear, Feeder Circuits, Commercial Electrical Systems

Voltage and Ratings

  • Rated Voltage: Up to 600VAC
  • Operating Voltages: 240V AC, 480V AC, 600V AC
  • Interrupting Rating @ 240V AC: 65 Kiloampere
  • Interrupting Rating @ 480V AC: 50 Kiloampere
  • Interrupting Rating @ 600V AC: 25 Kiloampere

Product Data

  • Manufacturer: Siemens / ITE
  • Condition: New / Reconditioned (Depending Supply)
  • Warranty: One Year
  • Availability: Subject to Stock
  • Frame Type: MD
  • SKU / UPC: Available on Request

Important Note

Product image may represent a base model and is provided for identification purposes only. Accessories ordered with the breaker may be installed prior to shipment at no additional cost depending on supplier policy. Always verify amperage rating, trip setting range, voltage compatibility, interrupting ratings, and terminal configuration before purchase or installation.
  • Type Circuit Breakers
  • Vendor Siemens
  • 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.