
MXD63B500 - 500Amp Circuit Breaker

- 500 Amp
- 25k @ 600VAC; 50k @ 480VAC; 65k @ 240VAC
- 3 Pole
Purchase Options:
MXD63B500 - 500Amp Circuit Breaker Description
MXD63B500 - 500Amp Circuit Breaker
Keep your existing electrical distribution system operating as intended with the MXD63B500 500 Amp 3-Pole Molded Case Circuit Breaker. As part of the MXD6 series, this heavy-duty circuit breaker provides overcurrent and short-circuit protection for compatible commercial and industrial electrical systems.
Key Features and Benefits
- Designed for electrical distribution applications requiring a 500A molded case circuit breaker.
- Provides three-pole circuit protection for compatible three-phase AC electrical systems.
- Supports form, fit, and functional replacement in equipment originally configured for an MXD6 breaker with matching specifications.
- Rated at 25kA at 600VAC, 50kA at 480VAC, and 65kA at 240VAC for applications within the stated ratings.
- Provides a 30kA interrupting Rating at 250VDC when used in an approved two-pole configuration.
- Features an integrated trip-unit arrangement designed to maintain the breaker's specified protection configuration.
- Includes load-side lugs for connection to compatible electrical conductors.
- Built for lasting service in electrical distribution equipment when properly installed and maintained.
- The 16" H × 9" W × 6" D dimensions help technicians evaluate replacement fit and enclosure clearance.
Technical Specifications
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Part Number: MXD63B500
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Product Type: Molded Case Circuit Breaker (MCCB)
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Series / Type: MXD6
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Amperage Rating: 500 Amps
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Number of Poles: 3
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Trip Unit: Non-Interchangeable
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Interrupting Rating at 600VAC: 25kAIC
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Interrupting Rating at 480VAC: 50kAIC
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Interrupting Rating at 240VAC: 65kAIC
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DC Interrupting Rating: 30kAIC at 250VDC (2-Pole Applications)
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Dimensions:
- Height: 16.0 Inches
- Width: 9.0 Inches
- Depth: 6.0 Inches
- Ship Weight: 75.00 lbs.
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Connection Hardware: Load-Side Lugs Included
Material Compliance and Certifications
Specific UL listings, CSA certifications, ANSI standards, RoHS compliance, and material composition details have not been independently verified for this part number. Applicable certifications and compliance requirements should be confirmed using the manufacturer's documentation and the markings on the individual breaker.
Where It Works Best
The MXD63B500 500A 3-Pole Circuit Breaker is particularly suited for maintaining existing electrical installations that require the MXD6 series configuration and its specific electrical characteristics. Its primary value lies in matching the form, fit, and function of the breaker originally specified for the equipment.
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.
Specifications
- Width:9.0
- Height:16.0
- Depth:6.0
- Poles:3
- Amperes:500
- A.I.C. Rating & Volts:25k @ 600VAC; 50k @ 480VAC; 65k @ 240VAC
- Type:MXD6
- Approx Dimensions:9.00"W x 16.00"L x 6.00"D
- Additional Notes:30kAIC@250vdc (for 2-pole applications), Molded Case Circuit Breaker with Non-Interchangeable Trip Unit. Includes Load-Side Lugs - discontinued by the manufacturer
Returns are easy
You may return unused items within 30 days of delivery for a refund, subject to our Return Policy.
FREE ground shipping on breaker orders over $100 and all other items with orders over $500.
Shipping charges are Prepaid and Allowed on UPS Ground orders for all other products on orders over $500.00, again only when shipping within the lower 48 continental United States, provided the product(s) can safely ship UPS Ground.
If the product cannot safely ship via UPS Ground, or is too heavy to ship UPS Ground, then the product will be shipped via freightliner at buyer's expense.
CIRCUIT BREAKER SUPERSTORE® 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).
Same Day Shipping
We strive to ship out your items within one business day.
In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).