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Insulated Case Circuit Breaker

For circuit breaker applications in commercial and industrial power distribution systems, insulated case circuit breakers are among the most critical components for reliable overcurrent protection and system safety. Insulated case circuit breakers provide adjustable trip settings and high interrupting capacity while offering compact installation in panelboards and switchboards. Electrical.com carries an extensive selection of insulated case circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, industrial facilities, data centers, and healthcare infrastructure applications.
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PRICE
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Amperage
MDN4083LEA0422NMNXNENNCAX
MDN4083LEA0422NMNXNENNCAX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNCCX
MDN4083LEA0422NMNXNENNCCX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNCPX
MDN4083LEA0422NMNXNENNCPX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNCSX
MDN4083LEA0422NMNXNENNCSX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNCWX
MDN4083LEA0422NMNXNENNCWX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNDAX
MDN4083LEA0422NMNXNENNDAX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNDCX
MDN4083LEA0422NMNXNENNDCX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNDPX
MDN4083LEA0422NMNXNENNDPX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNDSX
MDN4083LEA0422NMNXNENNDSX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNDWX
MDN4083LEA0422NMNXNENNDWX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNMAX
MDN4083LEA0422NMNXNENNMAX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNMCX
MDN4083LEA0422NMNXNENNMCX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNMPX
MDN4083LEA0422NMNXNENNMPX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNMSX
MDN4083LEA0422NMNXNENNMSX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNMWX
MDN4083LEA0422NMNXNENNMWX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNNAX
MDN4083LEA0422NMNXNENNNAX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNNCX
MDN4083LEA0422NMNXNENNNCX
Limited Stock
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNNPX
MDN4083LEA0422NMNXNENNNPX
Limited Stock
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNNSX
MDN4083LEA0422NMNXNENNNSX
Limited Stock
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Cutler Hammer
800
MDN4083LEA0422NMNXNENNNWX
MDN4083LEA0422NMNXNENNNWX
Limited Stock
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRCAX
MDN4083LEA0422NMNXNENRCAX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRCCX
MDN4083LEA0422NMNXNENRCCX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRCPX
MDN4083LEA0422NMNXNENRCPX
Limited Stock
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRCSX
MDN4083LEA0422NMNXNENRCSX
Limited Stock
From
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Cutler Hammer
800

Electrical.com stocks the largest inventory of insulated case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified circuit breakers available for immediate shipment. From low voltage to medium voltage applications, we have the insulated case breakers you need when others say no. Our comprehensive insulated case circuit breaker inventory spans all amperage ratings, voltage classes, and frame sizes from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our insulated case circuit breakers serve critical applications across industrial power distribution systems, manufacturing facilities, commercial buildings, data centers, utility substations, process control installations, and heavy industrial equipment.


Whether you're maintaining legacy electrical systems with obsolete insulated case breaker models or sourcing current production breakers for new installations and upgrades, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need insulated case circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.