Eaton Miniature Circuit Breakers

Eaton's miniature circuit breakers are compact, efficient devices that are designed to deliver reliable short-circuit protection and branch circuit protection in the wide variety of circuit conditions encountered in residential, commercial, and industrial applications. With a keen focus on tested reliability and optimum product quality, these compact tools serve a crucial function in safeguarding load circuits from two kinds of overcurrent: (1) from a "short" somewhere in the load circuit itself, with most of the load current flowing through the short and very little (if any) through the rest of the load; and (2) from an "overload," when the load is drawing more current than it should.

Eaton's miniature circuit breakers offer advanced protection and are capable of interrupting a fault in a very short time. Unlike other breaker mechanisms that might trip too late to prevent an electrical fire or dangerous fault currents, the design of these breakers allows for quick and safe interruption. They are meant to be used in load centers or just about any other compact space where circuit protection is needed. Dual-rated UL 489 breakers can be used at either 240-volt or 480-volt settings, making them very flexible.

Found 2633 items
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Found 2633 items
Manufacturer
Eaton (2633)
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AFCI Circuit Breaker (8)
AFCI/GFCI Circuit Breaker (3)
Frame Only (23)
GFCI Circuit Breaker (133)
Miniature Circuit Breaker (1196)
Smart Circuit Breaker (27)
Standard Circuit Breaker (30)
Thermal Magnetic Circuit Breaker (1213)
Breaker Amperage Rating
1 Amp (63)
1.60 Amp (1)
10 Amp (104)
100 Amp (97)
1000 Amp (1)
110 Amp (10)
12 Amp (9)
1200 Amp (1)
125 Amp (20)
13 Amp (64)
Breaker Trip Speed
B Curve (343)
C Curve (364)
D Curve (296)
K Curve (87)
S Curve (20)
Z Curve (59)
Breaker Voltage Rating
1000 VAC (1)
110 VAC (1)
115 VAC (1)
120 VAC (650)
125 VDC (45)
230 VAC (1)
240 VAC (1576)
277 VAC (805)
400 VAC (3)
415 VAC (27)
Breaker Number of Poles
Single Pole (743)
Two Pole (810)
Three Pole (605)
Four Pole (296)
Breaker Overcurrent Protection Rating
10 Ka (1019)
14 Ka (142)
15 Ka (334)
22 Ka (246)
25 Ka (31)
3 Ka (54)
42 Ka (71)
6 Ka (45)
65 Ka (28)
Breaker UL Rating
UL 1053 (9)
UL 1077 (655)
UL 1699 (6)
UL 489 (774)
UL 490 (69)
UL 943 (20)
Normally In Stock
Eaton CH260 Thermal Magnetic Circuit Breaker - 240 Max Volt 60 Amp
Free U.S Ground shipping
$58.28
$48.57
Normally In Stock
Eaton BRL220CAF AFCI Circuit Breaker - 240 Max Volt 20 Amp
Free U.S Ground shipping
$1446.90
$1205.75
Normally In Stock
Eaton BD1515 Thermal Magnetic Circuit Breaker - 120 Max Volt 15 Amp
Free U.S Ground shipping
$228.19
$190.16
Normally In Stock
Eaton CH225GFTT3 GFCI Circuit Breaker - 240 Max Volt 25 Amp
Free U.S Ground shipping
$841.99
$701.66
Normally In Stock
Eaton CH2100X Thermal Magnetic Circuit Breaker - 240 Max Volt 100 Amp
Free U.S Ground shipping
$1096.90
$914.08
Normally In Stock
Eaton FAZ-C4/1-NA-DC-SP Mini CB - 4 Amp, Single Pole, 125 VDC, C Curve
Free U.S Ground shipping
$86.70
$72.25
Normally In Stock
Eaton QCR1050 Thermal Magnetic Circuit Breaker - 240 Max Volt 50 Amp
Free U.S Ground shipping
$46.33
$38.61
Normally In Stock
Eaton CH250GFT GFCI Circuit Breaker - 240 Max Volt 50 Amp
Free U.S Ground shipping
$311.18
$259.32
Normally In Stock
Eaton BAB2040 Thermal Magnetic Circuit Breaker - 240 Max Volt 40 Amp
Free U.S Ground shipping
$201.91
$168.26
Normally In Stock
Eaton BAB3100HS Thermal Magnetic Circuit Breaker - 240 Max Volt 100 Amp
Free U.S Ground shipping
$1487.66
$1239.72
Normally In Stock
Eaton BAB1020S Thermal Magnetic Circuit Breaker - 240 Max Volt 20 Amp
Free U.S Ground shipping
$608.51
$507.09
Normally In Stock
Eaton QCHW3100H Thermal Magnetic Circuit Breaker - 240 Max Volt 100 Amp
Free U.S Ground shipping
$1330.85
$1109.04
Normally In Stock
Eaton QC1030T Thermal Magnetic Circuit Breaker - 240 Max Volt 30 Amp
Free U.S Ground shipping
$62.81
$52.34
Normally In Stock
Eaton QC1090V Thermal Magnetic Circuit Breaker - 240 Max Volt 90 Amp
Free U.S Ground shipping
$258.82
$215.68
Normally In Stock
Eaton QC1100 Thermal Magnetic Circuit Breaker - 240 Max Volt 100 Amp
Free U.S Ground shipping
$177.89
$148.24
Normally In Stock
Eaton BD3025 Thermal Magnetic Circuit Breaker - 120 Max Volt 30 Amp, 25 Amp
Free U.S Ground shipping
$203.75
$169.79
Normally In Stock
Eaton QCR2060P Thermal Magnetic Circuit Breaker - 240 Max Volt 60 Amp
Free U.S Ground shipping
$146.21
$121.84
Normally In Stock
Eaton BRH215 Thermal Magnetic Circuit Breaker - 240 Max Volt 15 Amp
Free U.S Ground shipping
$381.30
$317.75
Normally In Stock
Eaton BD1525 Thermal Magnetic Circuit Breaker - 120 Max Volt 15 Amp, 25 Amp
Free U.S Ground shipping
$228.19
$190.16
Normally In Stock
Eaton BR125 Thermal Magnetic Circuit Breaker - 240 Max Volt 25 Amp
Free U.S Ground shipping
$17.74
$14.78
Normally In Stock
Eaton FAZ-B50/4 Mini CB - 50 Amp, Four Pole, 277 VAC, B Curve
Free U.S Ground shipping
$397.36
$331.13
Normally In Stock
Eaton FAZ-C10/2-NA-DC Mini CB - 10 Amp, Two Pole, 125 VDC, C Curve
Free U.S Ground shipping
$167.51
$139.59
Normally In Stock
Eaton CH2150 Thermal Magnetic Circuit Breaker - 240 Max Volt 150 Amp
Free U.S Ground shipping
$1002.49
$835.41
Normally In Stock
Eaton FAZ-C2/1-SP Mini CB - 2 Amp, Single Pole, 277 VAC, C Curve
Free U.S Ground shipping
$80.11
$66.76
Normally In Stock
Eaton CH240GFTT3 GFCI Circuit Breaker - 240 Max Volt 40 Amp
Free U.S Ground shipping
$429.70
$358.08
Normally In Stock
Eaton QCR1040 Thermal Magnetic Circuit Breaker - 240 Max Volt 40 Amp
Free U.S Ground shipping
$44.28
$36.90
Normally In Stock
Eaton CH170 Thermal Magnetic Circuit Breaker - 240 Max Volt 70 Amp
Free U.S Ground shipping
$126.25
$105.21
Normally In Stock
Eaton FAZ-D2/3-RT Mini CB - 2 Amp, Three Pole, 277 VAC, D Curve
Free U.S Ground shipping
$235.08
$195.90
Normally In Stock
Eaton FAZ-C20/2-NA-DC Mini CB - 20 Amp, Two Pole, 125 VDC, C Curve
Free U.S Ground shipping
$167.51
$139.59
Normally In Stock
Eaton BR110 - Breaker, 10A, 1P, 120/240V, 10 kAIC
Free U.S Ground shipping
$21.00
$17.50
Normally In Stock
Eaton FAZ-C2/2-NA-DC Mini CB - 2 Amp, Two Pole, 125 VDC, C Curve
Free U.S Ground shipping
$180.47
$150.39
Normally In Stock
Eaton FAZ-B20/1-NA-L-SP Mini CB - 20 Amp, Single Pole, 240 VAC, B Curve
Free U.S Ground shipping
$39.77
$33.14
Normally In Stock
Eaton FAZ-B30/1-NA-L-SP Mini CB - 30 Amp, Single Pole, 240 VAC, B Curve
Free U.S Ground shipping
$39.77
$33.14
Normally In Stock
Eaton FAZ-B50/1-NA Mini CB - 50 Amp, Single Pole, 277 VAC, B Curve
Free U.S Ground shipping
$21.14
$17.62
Normally In Stock
Eaton FAZ-C6/1-NA-L-SP Mini CB - 6 Amp, Single Pole, 277 VAC, C Curve
Free U.S Ground shipping
$39.77
$33.14
Normally In Stock
Eaton FAZ-D5/1-RT-SP Mini CB - 5 Amp, Single Pole, 277 VAC, D Curve
Free U.S Ground shipping
$80.36
$66.97
Normally In Stock
Eaton FAZ-S6/1 Mini CB - 6 Amp, Single Pole, 240 VAC, S Curve
Free U.S Ground shipping
$77.15
$64.29
Normally In Stock
Eaton FAZ-D30/1-NA-SP Mini CB - 30 Amp, Single Pole, 277 VAC, D Curve
Free U.S Ground shipping
$79.52
$66.27
Normally In Stock
Eaton FAZ-D12/1 Mini CB - 12 Amp, Single Pole, 277 VAC, D Curve
Free U.S Ground shipping
$56.84
$47.37
Normally In Stock
Eaton FAZ-B10/1-NA-L-SP Mini CB - 10 Amp, Single Pole, 240 VAC, B Curve
Free U.S Ground shipping
$39.77
$33.14
Normally In Stock
Eaton FAZ-B10/4-NA Mini CB - 10 Amp, Four Pole, 480 VAC, B Curve
Free U.S Ground shipping
$357.23
$297.69
Normally In Stock
Eaton FAZ-B13/4-NA-L Mini CB - 13 Amp, Four Pole, 240 VAC, B Curve
Free U.S Ground shipping
$357.23
$297.69
Normally In Stock
Eaton FAZ-B13/4-RT-L Mini CB - 13 Amp, Four Pole, 240 VAC, B Curve
Free U.S Ground shipping
$387.14
$322.62
Normally In Stock
Eaton FAZ-B13/1-NA-L-SP Mini CB - 13 Amp, Single Pole, 240 VAC, B Curve
Free U.S Ground shipping
$39.77
$33.14
Normally In Stock
Eaton FAZ-B13/4-NA Mini CB - 13 Amp, Four Pole, 480 VAC, B Curve
Free U.S Ground shipping
$357.23
$297.69
Normally In Stock
Eaton FAZ-B15/4-NA-L Mini CB - 15 Amp, Four Pole, 240 VAC, B Curve
Free U.S Ground shipping
$357.23
$297.69
Normally In Stock
Eaton FAZ-B15/4-RT-L Mini CB - 15 Amp, Four Pole, 240 VAC, B Curve
Free U.S Ground shipping
$387.14
$322.62
Normally In Stock
Eaton FAZ-B15/1-NA-L-SP Mini CB - 15 Amp, Single Pole, 240 VAC, B Curve
Free U.S Ground shipping
$39.77
$33.14

More Information about Eaton Miniature Circuit Breakers

Eaton's miniature circuit breakers are designed to perform consistently and to meet tough safety standards. These breakers are well suited to protect both single-phase and three-phase circuits, and are built to ensure reliability and safety in a range of applications. Eaton offers a broad line of MCBs in a very compact design, which is a real advantage when you consider the amount of space available in most circuit breaker enclosures. 

FAQs

Are single-pole Eaton miniature circuit breakers capable of fast short circuit interruption?

Yes, single-pole Eaton miniature circuit breakers are designed to provide fast short circuit interruption, ensuring reliable protection for load circuits.

What is considered a supplementary protector with inrush current protection?

A supplementary protector with inrush current protection is a device designed to safeguard equipment by handling brief surges of current, such as those caused by motor startups or transformer energizing, while providing overcurrent protection for individual circuits.

Trip Curve Basics Part 1

There are two critical elements in miniature circuit beakers.

Bimetal strip

This strip has two dissimilar metals attached to one another. When a prolonged overcurrent occurs, these metals begin to bend. Because the metals are different, the rate at which they bend is different, therefore causing the strip to bend. If this bending occurs long enough, the bending strip will disrupt the electrical contacts inside the breaker, causing it to trip.

Coil or solenoid

The coil or solenoid is designed for larger overcurrent events like a short circuit or lightning strike. When a large overcurrent event occurs, the plunger in the solenoid is actuated, thereby tripping the breaker.

What is a trip curve?

It is both the prolonged overcurrent protection from the bimetal strip and the higher spikes in voltage and current protection from the solenoid that make up the circuit breakers trip curve. How fast or slow these events occur determines the shape of the curve. A trip curve is simply a graphical representation of the expected behavior of a circuit protection device, in this case, a circuit breaker.

This graphical representation looks at two separate pieces of data to provide the information needed to understand when a particular breaker will trip. The first is time, more specifically, the time the circuit breaker experiences a certain amount of overcurrent. The second is the amount of current. In this case, how much more current is passing through the breaker than the protection device is actually rated for.