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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
SPB100-3P-3000A-EO-DO-LSI
SPB100-3P-3000A-EO-DO-LSI
In Stock
From
Get Price
Cutler Hammer
3000
SPB100-3P-3000A-EO-DO-LSIG
SPB100-3P-3000A-EO-DO-LSIG
In Stock
From
$9,422.07
Cutler Hammer
3000
SPB100-3P-3000A-MO-BO-LS
SPB100-3P-3000A-MO-BO-LS
In Stock
From
$5,126.83
Cutler Hammer
3000
SPB100-3P-3000A-MO-DO-LIG
SPB100-3P-3000A-MO-DO-LIG
In Stock
From
$8,755.57
Cutler Hammer
3000
SPB100-3P-3000A-MO-DO-LSI
SPB100-3P-3000A-MO-DO-LSI
In Stock
From
Get Price
Cutler Hammer
3000
SPB100-3P-3000A-MO-DO-LSIG
SPB100-3P-3000A-MO-DO-LSIG
In Stock
From
Get Price
Cutler Hammer
3000
MDN6163XEA
MDN6163XEA
In Stock
From
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Eaton
1600
MDNC20
MDNC20
In Stock
From
$3,333.33
Cutler Hammer
2000
MDS84N4HEA
MDS84N4HEA
In Stock
From
$2,222.22
Cutler Hammer
4000
MDSC08
MDSC08
Limited Stock
From
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Cutler Hammer
800
MWI6163LEA
MWI6163LEA
In Stock
From
$2,532.99
Cutler Hammer
1600
MWN6083HEA
MWN6083HEA
In Stock
From
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Cutler Hammer
800
SBS630
SBS630
In Stock
From
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Cutler Hammer
3000
SPB-100-3000A
SPB-100-3000A
In Stock
From
$11,111.11
Cutler Hammer
3000
SPB100-2000C
SPB100-2000C
In Stock
From
$2,209.51
Eaton
2000
SPB100-2500
SPB100-2500
In Stock
From
$6,500.00
Eaton
2500
SPBNH-3P-2500A-MO-DO
SPBNH-3P-2500A-MO-DO
In Stock
From
Get Price
Cutler Hammer
2500
MDSC20
MDSC20
In Stock
From
Get Price
Cutler Hammer
2000
SPB100-2000A
SPB100-2000A
In Stock
From
$2.22
Eaton
2000
SPB100-3000-FC
SPB100-3000-FC
In Stock
From
$2,444.44
Eaton
3000
SPB100-400
SPB100-400
In Stock
From
$1,913.14
Eaton
400
SPBSR321C
SPBSR321C
Limited Stock
From
Get Price
Cutler Hammer
-
SPB50
SPB50
In Stock
From
Get Price
Cutler Hammer
800
SBS6083HEA
SBS6083HEA
In Stock
From
$917.03
Eaton
-

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.