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Circuit Breaker

For power distribution and electrical protection systems, circuit breakers are among the most critical components for safeguarding equipment, personnel, and facilities from electrical overloads and short circuits. Circuit breakers automatically interrupt electrical current flow when abnormal conditions are detected, protecting circuits from damage while allowing manual reset and continued operation. Electrical.com carries an extensive selection of 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, manufacturing facilities, data centers, and industrial power distribution applications.
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Part Number
PRICE
Manufacturer
Amperage
Poles
NZMB1-A40
NZMB1-A40
In Stock
From
$685.17
Klockner Moeller
40
3
NZMB1-A50
NZMB1-A50
In Stock
From
$1,060.20
Eaton
50
3
NZMB1-A63
NZMB1-A63
In Stock
From
$622.00
Klockner Moeller
63
3
NZMB1-A80
NZMB1-A80
Limited Stock
From
Get Price
Eaton
80
3
NZMB1-A80-NA
NZMB1-A80-NA
In Stock
From
$1,928.70
Eaton
80
3
NZMB1-M100
NZMB1-M100
In Stock
From
$599.40
Klockner Moeller
100
3
NZMB1-M50
NZMB1-M50
In Stock
From
$404.10
Eaton
50
3
NZMB1-M63
NZMB1-M63
Limited Stock
From
Get Price
Klockner Moeller
63
3
NZMB1-M80
NZMB1-M80
In Stock
From
$575.10
Klockner Moeller
80
3
NZMB1-S3-CNA
NZMB1-S3-CNA
In Stock
From
$898.20
Eaton
3
3
NZMB1-S40
NZMB1-S40
Limited Stock
From
Get Price
Eaton
40
3
NZMB1-S50-CNA
NZMB1-S50-CNA
In Stock
From
$1,325.18
Eaton
50
3
NZMB1-S63-CNA
NZMB1-S63-CNA
Limited Stock
From
Get Price
Eaton
63
3
NZMB2-A160
NZMB2-A160
Limited Stock
From
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Eaton
160
3
NZMB2-A160-NA
NZMB2-A160-NA
In Stock
From
$2.54
Eaton
160
3
NZMB2-A200
NZMB2-A200
Limited Stock
From
Get Price
Klockner Moeller
200
3
NZMB2-A250-NA
NZMB2-A250-NA
In Stock
From
$3,581.10
Klockner Moeller
250
3
NZMB2-A32-NA
NZMB2-A32-NA
In Stock
From
$383.99
Eaton
32
3
NZMB2-A40-BT-NA
NZMB2-A40-BT-NA
In Stock
From
$1,439.12
Klockner Moeller
40
3
NZMB2-A40-NA
NZMB2-A40-NA
In Stock
From
$560.81
Klockner Moeller
40
3
NZMB2-A63-NA
NZMB2-A63-NA
In Stock
From
$551.67
Klockner Moeller
63
3
NZMB2-AF100-NA
NZMB2-AF100-NA
In Stock
From
$1,352.94
Klockner Moeller
100
3
NZMB2-AF125-BT-NA
NZMB2-AF125-BT-NA
In Stock
From
$1,909.83
Klockner Moeller
125
3
NZMB2-AF15-NA
NZMB2-AF15-NA
In Stock
From
$746.60
Klockner Moeller
15
3
Popular Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified circuit protection equipment available for immediate shipment. From residential to industrial applications, across all voltage and amperage ratings, we have what you need when others say no. Our comprehensive circuit breaker inventory spans all voltage classes, amperage ratings, and pole configurations 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 circuit breakers serve critical applications across manufacturing facilities, commercial buildings, data centers, healthcare facilities, utilities and power generation, industrial plants, residential construction, telecommunications infrastructure, and process control installations.


Whether you're maintaining legacy equipment with obsolete circuit breaker models or sourcing current production components for new electrical systems, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime and keep your operations running. Need 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.

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