HJXD63B300 - 300Amp Circuit Breaker
- 300 Amp
- 35k @ 600VAC; 65k @ 480VAC; 100k @ 240VAC
- 3 Pole
Purchase Options: New In Box
HJXD63B300 - 300Amp Circuit Breaker Description
HJXD63B300 - 300Amp Circuit Breaker
The HJXD63B300 molded case circuit breaker is a 3-pole, 300-amp electrical protection device designed for use in compatible HJXD6 electrical systems. It is commonly used for replacement and maintenance applications where maintaining your existing electrical system layout is important. With space for an interchangeable trip unit and load-side lugs included, this circuit breaker is designed to support established commercial and industrial power distribution equipment. The HJXD63B300 provides a practical solution for facilities that need a properly matched component while keeping existing panels, switchgear, and electrical configurations in place. Its molded case design is built for long-term use in properly maintained electrical installations.
Key Features and Benefits
- 300 Amp Rating: Fits electrical systems that require a 300-amp molded case circuit breaker.
- 3-Pole Configuration: Supports compatible three-phase electrical applications requiring coordinated circuit protection.
- HJXD6 Compatibility: Designed for equipment that specifies HJXD6-type circuit breakers for proper form, fit, and function.
- Interchangeable Trip Unit Space: Provides room for compatible interchangeable trip unit configurations.
- Load-Side Lugs Included: Includes load-side connection points for compatible electrical equipment applications.
- Replacement-Focused Design: Helps maintain existing electrical systems where matching specifications and equipment compatibility are important.
Technical Specifications
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Part Number: HJXD63B300
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Type: HJXD6
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Style: Molded Case Circuit Breaker (MCCB)
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Amperes: 300 A
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Poles: 3
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Approximate Shipping Weight: 18.00 lbs.
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Dimensions: 7.5"W x 11.00"L x 4.00"D
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Height: 11.00 in.
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Width: 7.5 in.
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Depth: 4.0 in.
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A.I.C. Ratings:
- 35kA @ 600VAC
- 65kA @ 480VAC
- 100kA @ 240VAC
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Additional Rating: 30kAIC @ 250VDC (2-pole applications)
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Trip Unit: Space provided for interchangeable trip unit
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Connections: Load-side lugs included
Material Compliance and Certifications
The HJXD63B300 circuit breaker should be installed in accordance with the requirements of the electrical equipment it is used with, as well as all applicable electrical codes and standards. Voltage ratings, interrupt ratings, and system compatibility should be verified before installation. Certification and compliance details should be confirmed through product markings and available manufacturer documentation.
Where It Works Best
The HJXD63B300 is well suited for commercial buildings, industrial facilities, and electrical maintenance environments where HJXD6-compatible equipment is already installed. It works best in applications where replacing an existing molded case circuit breaker while preserving the current system design is important.
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:7.5
- Height:11.0
- Depth:4.0
- Poles:3
- Amperes:300
- A.I.C. Rating & Volts:35k @ 600VAC; 65k @ 480VAC; 100k @ 240VAC
- Type:HJXD6
- Approx Dimensions:7.5"W x 11.00"L x 4.00"D
- Additional Notes:30kAIC@250vdc (for 2-pole applications), Molded Case Circuit Breaker with 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 full refund.
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).