LD63B500 - 500Amp Circuit Breaker
- 500 Amp
- 25k @ 600VAC; 35k @ 480VAC; 65k @ 240VAC
- 3 Pole
Purchase Options:
LD63B500 - 500Amp Circuit Breaker Description
LD63B500 - 500Amp Circuit Breaker
When you’re sourcing a replacement breaker, the useful details are the ones you can actually match to the equipment. The LD63B500 is a 500A, 3-pole molded case circuit breaker with an LD frame and thermal-magnetic trip unit. For maintaining existing or legacy electrical equipment, the LD63B500 makes sense when its ratings, dimensions, connections, and frame requirements match the breaker the system was designed to use. Properly selected and installed within its specified ratings, it’s built to last in its intended application.
Key Features and Benefits
- 500A rated current
- 3-pole configuration
- Rated for 600V
- Thermal-magnetic trip unit
- LD frame construction
- Standard 40°C breaker
- TA2J6500 lugs included on the load sides
- Accepts 3/0 AWG–500 kcmil copper conductors
- Accepts 4/0 AWG–500 kcmil aluminum conductors
- A practical form, fit, and functional replacement where the complete specifications match the existing equipment
Technical Specifications
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Catalog Number: LD63B500
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Article Number: US2:LD63B500
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Device Type: Molded Case Circuit Breaker (MCCB)
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Frame: LD
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Amperage: 500A
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Number of Poles: 3
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Voltage Rating: 600V
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Trip Type: Thermal-Magnetic
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AIC at 600V: 25kA
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AIC at 480V: 35kA
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Temperature Rating: 40°C
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Load-Side Lugs: TA2J6500, included
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Copper Wire Range: 3/0 AWG–500 kcmil
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Aluminum Wire Range: 4/0 AWG–500 kcmil
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Dimensions: 7.5"W x 11"H x 4"D
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Country of Origin: Mexico
Material Compliance and Certifications
- UL 489
- IEC 60947-2
- REACH Article 33: REACH information is referenced, but blanket REACH compliance should not be assumed
- WEEE: Manufacturer information references WEEE take-back obligations
Where It Works Best
Consider the LD63B500 when an existing application requires a 500A, 3-pole LD-frame thermal-magnetic breaker and maintaining the correct form, fit, and function is the priority.
Pay particular attention to the system voltage and available fault current. The documented interrupting rating is 25 kA at 600V and 35 kA at 480V. These ratings must match the electrical system where the breaker will be installed.
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:500
- A.I.C. Rating & Volts:25k @ 600VAC; 35k @ 480VAC; 65k @ 240VAC
- Type:LD6-A
- 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.
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Same Day Shipping
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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).