HLXD63B350 - 350Amp Circuit Breaker
- 350 Amp
- 35k @ 600VAC; 65k @ 480VAC; 100k @ 240VAC
- 3 Pole
Purchase Options: New In Box
HLXD63B350 - 350Amp Circuit Breaker Description
HLXD63B350 - 350Amp Circuit Breaker
The HLXD63B350 is a 350-amp, 3-pole molded-case circuit breaker designed for your electrical systems that already use the HLD6-A frame style. In most cases, it’s selected for replacement work where the goal is simple—match the existing breaker’s form, fit, and electrical ratings so the system stays consistent and reliable.
Inside, it uses a non-interchangeable trip unit, meaning the trip function is built into the breaker assembly. That’s important in applications where the original equipment was designed around this exact configuration and shouldn’t be altered.
Key Features and Benefits
- 350 Amp, 3-pole molded case circuit breaker
- Designed for HLD6-A frame applications
- Rated up to 600VAC systems
- Non-interchangeable trip unit for fixed configuration use
- Includes load-side lugs
- Suitable for 250VDC 2-pole applications (30kAIC)
- Built for replacement work in existing electrical systems
- Dimensions support straightforward form-and-fit matching
Technical Specifications
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Catalog Number: HLXD63B350
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Product Type: Molded Case Circuit Breaker
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Type: HLD6-A
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Amperage Rating: 350 Amps
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Poles: 3
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Maximum Voltage Rating: 600VAC
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Interrupt Rating (600VAC): 35kAIC
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Interrupt Rating (480VAC): 65kAIC
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Interrupt Rating (240VAC): 100kAIC
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DC Interrupt Rating: 30kAIC at 250VDC (2-pole applications)
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Trip Unit: Non-interchangeable
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Lugs: Load-side lugs included
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Width: 7.50 in.
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Height: 11.00 in.
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Depth: 4.00 in.
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Dimensions: 7.50" W x 11.00" H x 4.00" D
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Approximate Shipping Weight: 18.00 lbs
Material Compliance and Certifications
The HLXD63B350 should be used in accordance with the requirements of the existing electrical system, including voltage rating, amperage, interrupting capacity, pole configuration, and physical fit. Any applicable certifications or compliance details should be confirmed through manufacturer documentation or equipment labeling before installation.
Where It Works Best
- Existing systems requiring an HLXD63B350 replacement breaker
- Electrical distribution equipment using the HLD6-A frame type
- 350A, 3-pole applications in commercial or industrial settings
- Systems operating up to 600VAC
- 480VAC and 240VAC distribution systems within listed interrupt ratings
- 250VDC 2-pole applications where 30kAIC is required
- Maintenance and repair work focused on matching existing breaker specifications
- Installations where load-side lugs are required for conductor connection
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:350
- A.I.C. Rating & Volts:35k @ 600VAC; 65k @ 480VAC; 100k @ 240VAC
- Type:HLD6-A
- Approx Dimensions:7.5"W x 11.00"L x 4.00"D
- Additional Notes:330kAIC@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 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).