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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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Manufacturer
Amperage
WLC2D316T
WLC2D316T
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Siemens
1600
WLC2D316TA
WLC2D316TA
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Siemens
1600
WLC2D316TB
WLC2D316TB
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Siemens
1600
WLC2D316TC
WLC2D316TC
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Siemens
1600
WLC2D320A
WLC2D320A
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Siemens
2000
WLC2D320AA
WLC2D320AA
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Siemens
2000
WLC2D320AB
WLC2D320AB
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Siemens
2000
WLC2D320AC
WLC2D320AC
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Siemens
2000
WLC2D320B
WLC2D320B
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Siemens
2000
WLC2D320BA
WLC2D320BA
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Siemens
2000
WLC2D320BB
WLC2D320BB
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Siemens
2000
WLC2D320BC
WLC2D320BC
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Siemens
2000
WLC2D320C
WLC2D320C
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Siemens
2000
WLC2D320CA
WLC2D320CA
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Siemens
2000
WLC2D320CB
WLC2D320CB
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Siemens
2000
WLC2D320CC
WLC2D320CC
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Siemens
2000
WLC2D320D
WLC2D320D
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Siemens
2000
WLC2D320DA
WLC2D320DA
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Siemens
2000
WLC2D320DB
WLC2D320DB
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Siemens
2000
WLC2D320DC
WLC2D320DC
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Siemens
2000
WLC2D320E
WLC2D320E
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Siemens
2000
WLC2D320EA
WLC2D320EA
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Siemens
2000
WLC2D320EB
WLC2D320EB
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Siemens
2000
WLC2D320EC
WLC2D320EC
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Siemens
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.