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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
WLH1F316AQ
WLH1F316AQ
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Siemens
1600
WLH1F316AR
WLH1F316AR
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Siemens
1600
WLH1F316AT
WLH1F316AT
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Siemens
1600
WLH1F316AU
WLH1F316AU
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Siemens
1600
WLH1F316AV
WLH1F316AV
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Siemens
1600
WLH1F316AW
WLH1F316AW
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Siemens
1600
WLH1F316AY
WLH1F316AY
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Siemens
1600
WLH1F316B
WLH1F316B
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Siemens
1600
WLH1F316BA
WLH1F316BA
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Siemens
1600
WLH1F316BB
WLH1F316BB
Limited Stock
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Siemens
1600
WLH1F316BD
WLH1F316BD
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Siemens
1600
WLH1F316BE
WLH1F316BE
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Siemens
1600
WLH1F316BF
WLH1F316BF
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Siemens
1600
WLH1F316BG
WLH1F316BG
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Siemens
1600
WLH1F316BH
WLH1F316BH
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Siemens
1600
WLH1F316BJ
WLH1F316BJ
Limited Stock
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Siemens
1600
WLH1F316BK
WLH1F316BK
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Siemens
1600
WLH1F316BL
WLH1F316BL
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Siemens
1600
WLH1F316BN
WLH1F316BN
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Siemens
1600
WLH1F316BP
WLH1F316BP
Limited Stock
From
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Siemens
1600
WLH1F316BQ
WLH1F316BQ
Limited Stock
From
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Siemens
1600
WLH1F316BR
WLH1F316BR
Limited Stock
From
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Siemens
1600
WLH1F316BT
WLH1F316BT
Limited Stock
From
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Siemens
1600
WLH1F316BU
WLH1F316BU
Limited Stock
From
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Siemens
1600

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.