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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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Part Number
PRICE
Manufacturer
Amperage
EL2FDV10X9SXBXWXCXT
EL2FDV10X9SXBXWXCXT
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Square D
2500
HRB3B200
HRB3B200
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ITE
2000
MC20H2
MC20H2
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Square D
2000
MDN6083XEA031CNMNNNNNNNAX
MDN6083XEA031CNMNNNNNNNAX
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Cutler Hammer
300
MDN6083XEA051GNMNNNNNNNAX
MDN6083XEA051GNMNNNNNNNAX
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Cutler Hammer
250
MDS84N
MDS84N
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Cutler Hammer
4000
MDSL08
MDSL08
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Cutler Hammer
800
MWI84N3LEA401WCNAA4YMNNAX
MWI84N3LEA401WCNAA4YMNNAX
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Cutler Hammer
4000
NP631250
NP631250
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Federal Pacific
2500
NP632060
NP632060
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Federal Pacific
600
NP632080
NP632080
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Federal Pacific
800
NP632080SP3
NP632080SP3
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Federal Pacific
800
NP632090
NP632090
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Federal Pacific
900
NP632100
NP632100
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Federal Pacific
1000
NP632120
NP632120
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Federal Pacific
1200
NP632140
NP632140
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Federal Pacific
1400
NP632140SP3
NP632140SP3
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Federal Pacific
1400
NP632180
NP632180
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Federal Pacific
1800
NP632200
NP632200
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Federal Pacific
2000
NP632250
NP632250
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Federal Pacific
2500
NW10H1WM4BBR42R9SXXXXXXX
NW10H1WM4BBR42R9SXXXXXXX
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Schneider Electric
1000
NW10N1-3P-FIXED
NW10N1-3P-FIXED
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Square D
1000
PCCFA32000
PCCFA32000
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Westinghouse
2000
PCCFA32500F
PCCFA32500F
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Westinghouse
2500

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.