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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
MDN4083LEA0422NMNXNENRCWX
MDN4083LEA0422NMNXNENRCWX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRDAX
MDN4083LEA0422NMNXNENRDAX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRDCX
MDN4083LEA0422NMNXNENRDCX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRDPX
MDN4083LEA0422NMNXNENRDPX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRDSX
MDN4083LEA0422NMNXNENRDSX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRDWX
MDN4083LEA0422NMNXNENRDWX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRMAX
MDN4083LEA0422NMNXNENRMAX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRMCX
MDN4083LEA0422NMNXNENRMCX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRMPX
MDN4083LEA0422NMNXNENRMPX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRMSX
MDN4083LEA0422NMNXNENRMSX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRMWX
MDN4083LEA0422NMNXNENRMWX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRNAX
MDN4083LEA0422NMNXNENRNAX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRNCX
MDN4083LEA0422NMNXNENRNCX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRNPX
MDN4083LEA0422NMNXNENRNPX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRNSX
MDN4083LEA0422NMNXNENRNSX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENRNWX
MDN4083LEA0422NMNXNENRNWX
Limited Stock
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Cutler Hammer
800
MDN4083LEA0422NMNXNENYCAX
MDN4083LEA0422NMNXNENYCAX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENYCCX
MDN4083LEA0422NMNXNENYCCX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENYCPX
MDN4083LEA0422NMNXNENYCPX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENYCSX
MDN4083LEA0422NMNXNENYCSX
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Cutler Hammer
800
MDN4083LEA0422NMNXNENYCWX
MDN4083LEA0422NMNXNENYCWX
Limited Stock
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Cutler Hammer
800
MDN4083LEA0422NMNXNENYDAX
MDN4083LEA0422NMNXNENYDAX
Limited Stock
From
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Cutler Hammer
800
MDN4083LEA0422NMNXNENYDCX
MDN4083LEA0422NMNXNENYDCX
Limited Stock
From
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Cutler Hammer
800
MDN4083LEA0422NMNXNENYDPX
MDN4083LEA0422NMNXNENYDPX
Limited Stock
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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.