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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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SHF4G658N
SHF4G658N
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General Electric
2000
SHF4G658P
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General Electric
2000
SHF4G658R
SHF4G658R
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General Electric
2000
SHF4G658T
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General Electric
2000
SHF4G658U
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General Electric
2000
SHF4G658W
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General Electric
2000
SHF4G659M
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General Electric
2000
SHF4G659N
SHF4G659N
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General Electric
2000
SHF4G659P
SHF4G659P
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General Electric
2000
SHF4G659R
SHF4G659R
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General Electric
2000
SHF4G659T
SHF4G659T
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General Electric
2000
SHF4G659U
SHF4G659U
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General Electric
2000
SHF4G659W
SHF4G659W
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General Electric
2000
SHF4G661M
SHF4G661M
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General Electric
2000
SHF4G661N
SHF4G661N
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General Electric
2000
SHF4G661P
SHF4G661P
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General Electric
2000
SHF4G661R
SHF4G661R
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General Electric
2000
SHF4G661T
SHF4G661T
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General Electric
2000
SHF4G661U
SHF4G661U
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General Electric
2000
SHF4G661W
SHF4G661W
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General Electric
2000
SHF4G662M
SHF4G662M
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General Electric
2000
SHF4G662N
SHF4G662N
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General Electric
2000
SHF4G662P
SHF4G662P
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General Electric
2000
SHF4G662R
SHF4G662R
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General Electric
2000

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.