ND63B900 - 900Amp Circuit Breaker
- 900 Amp
- 25k @ 600VAC; 50k @ 480VAC; 65k @ 240VAC
- 3 Pole
Purchase Options:
ND63B900 - 900Amp Circuit Breaker Description
ND63B900 - 900Amp Circuit Breaker
When you're maintaining an electrical distribution system that's been in service for years, finding the right replacement breaker isn't always as simple as matching the amperage. The breaker has to fit the existing equipment, meet the electrical requirements, and provide the protection the system was designed around. Get one of those details wrong, and what should be a straightforward replacement can turn into a much bigger job.
Then there's the trip unit. Unlike a breaker with a permanently fixed trip assembly, the ND63B900 features an interchangeable trip unit. This is an important identification point when matching the breaker to an existing installation. The actual trip unit model, settings, and protective characteristics still need to be confirmed, since interchangeable doesn't mean every trip unit will be suitable for every application.
Key Features and Benefits
- 900 Amp Current Rating
- 3-Pole Circuit Breaker Configuration
- Type ND6 Identification
- Molded Case Circuit Breaker Design
- Interchangeable Trip Unit
- Two-Pole DC Application Rating
- Included Load-Side Lugs
- Existing Equipment Compatibility Checks
- Form, Fit, and Function Replacement
Technical Specifications
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Part Number: ND63B900
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Product Category: Circuit Breaker
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Breaker Type: ND6
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Breaker Construction: Molded Case Circuit Breaker
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Rated Current: 900 Amps
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Number of Poles: 3
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Trip Unit Configuration: Interchangeable Trip Unit
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AC Interrupting Rating at 600VAC: 25kA (25,000 Amps)
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AC Interrupting Rating at 480VAC: 50kA (50,000 Amps)
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AC Interrupting Rating at 240VAC: 65kA (65,000 Amps)
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DC Interrupting Rating: 30kA (30,000 Amps) at 250VDC
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DC Application Configuration: Two-Pole Applications
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Included Connections: Load-Side Lugs
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Height: 16.0 inches
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Width: 9.0 inches
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Depth: 6.0 inches
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Overall Dimensions (H × W × D): 16.0" × 9.0" × 6.0"
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Approximate Shipping Weight: 75.00 lbs.
Material Compliance and Certifications
A circuit breaker can have the right amperage and still be unsuitable for a particular installation. That's why electrical ratings, mechanical compatibility, and the complete breaker configuration all need to be considered before replacement.
The available product information does not identify the specific materials used in the breaker housing, contacts, terminals, or internal assemblies. It also does not independently establish a UL listing, CSA certification, or other product-specific certification. Any required approvals should be confirmed through the manufacturer's documentation and the markings on the actual breaker.
Where It Works Best
- Compatible Type ND6 Installations
- Existing Electrical Distribution Equipment
- Commercial Electrical Facilities
- Industrial Electrical Systems
- Manufacturing Plant Maintenance
- Facility Electrical Maintenance
- Legacy Circuit Breaker Replacement
- Three-Pole AC Circuit Protection
- 900 Amp Circuit Applications
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:900
- A.I.C. Rating & Volts:25k @ 600VAC; 50k @ 480VAC; 65k @ 240VAC
- Type:ND6
- 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 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).