
LAP36300MB - 300 Amp Circuit Breaker

- 300 Amp
- 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
- 3 Pole
Purchase Options: Refurbished
LAP36300MB - 300 Amp Circuit Breaker Description
LAP36300MB - 300 Amp Circuit Breaker
The LAP36300MB is a 300A, 3-pole LA molded-case circuit breaker for unit-mount applications. It is rated 22kA at 600VAC and 10kA at 250VDC, and it comes with load-side lugs and a line-side terminal connection. One easy-to-overlook detail is the MB suffix. On this model, it identifies a shorter handle designed to provide the clearance needed for the panel door to close. That's worth checking closely when you're replacing a breaker in existing equipment.
Key Features and Benefits
- 300A, 3-pole configuration
- Manufacturer description specifies thermal overload and magnetic short-circuit sensing
- 1,500A magnetic hold current
- 3,000A magnetic tripping current
- Short MB handle designed to allow the applicable panel door to close
- Push-to-Trip permits manual tripping without exposure to live parts
- Unit-mount design
- Load-side lugs and line-side terminal connection
- AL400LA terminal identifier
Technical Specifications
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Catalog Number: LAP36300MB
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Product Type: Circuit Breaker
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Series / Type: LA
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Rated Current: 300A
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Poles: 3
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Wiring Configuration: 3-wire
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AC Rating: 600VAC, 22kA
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DC Rating: 250VDC, 10kA
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Breaking Capacity Code: A
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Magnetic Hold Current: 1,500A
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Magnetic Tripping Current: 3,000A
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Mounting: Unit mount
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Operator: Short lever
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Connection, Load Side: Lugs
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Connection, Line Side: Terminal
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Terminal Identifier: AL400LA
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Height: 11 in. (279.4 mm)
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Width: 6 in. (152.4 mm)
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Depth: 5.84 in. (148.34 mm)
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Application: HACR-rated
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Country of Origin: Mexico
Material Compliance and Certifications
- UL 489 / UL Listed
- CSA certified
- IEC certified
Where It Works Best
The LAP36300MB makes the most sense in existing and legacy equipment that requires its particular LA breaker configuration. The 300A rating and three-pole arrangement are obvious checkpoints, but several other details can determine whether the breaker is a suitable replacement.
Pay particular attention to the MB short handle. If the existing installation depends on that shorter operator for panel-door clearance, a breaker with a different handle configuration may not fit the same way.
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.
Square D® is a registered trademark of Schneider Electric. Products sold are surplus, used, or refurbished and are NOT supplied by Schneider Electric or its affiliates.
Specifications
- Width:6.0
- Height:11.0
- Depth:4.06
- Poles:3
- Amperes:300
- A.I.C. Rating & Volts:22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
- Type:LAP
- Approx Dimensions:6.00"W x 11.00"L x 4.06"D
- Additional Notes:60Hz, 40°C, Thermal Magnetic, Molded Case Circuit Breaker, Includes Load-Side Lug Terminals - discontinued by the Manufacturer
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
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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).