Square D Breakers

Square D circuit breakers, manufactured by Schneider Electric, are widely used across residential, commercial, and industrial applications to protect electrical systems from overcurrent, short circuits, and ground fault conditions. Known for their reliability and proven design, Square D breakers are engineered to safeguard equipment, wiring, and personnel while supporting long-term system performance.

For industrial and commercial environments, Square D PowerPact molded case circuit breakers (MCCBs) provide robust protection for higher current applications. These breakers are designed to handle demanding loads and fault conditions commonly found in industrial power distribution, motor control centers, and commercial electrical systems. Advanced protection features help ensure accurate fault interruption and improved operational safety compared to older electromechanical protection devices.

Square D also offers well-known miniature circuit breaker lines for residential and light commercial use, including the QO and Homeline series. QO breakers feature fast trip response and clear visual trip indicators, making fault identification straightforward. Homeline breakers provide similar protection and functionality in a more cost-effective format, making them a common choice for new construction, renovations, and retrofit projects. Specialty options such as AFCI and GFCI breakers are also available to address fire prevention and ground fault protection requirements.

Found 4696 items
Filters
Found 4696 items
Manufacturer
Schneider Electric (4696)
Square D (4696)
Component
Enclosed Circuit Breaker (1)
Miniature Circuit Breaker (2037)
Molded Case Circuit Breaker (2587)
Residual Current Breaker (1)
Amperage (Molded Case Breaker)
6 Amp (1)
15 Amp (94)
20 Amp (104)
25 Amp (49)
30 Amp (99)
35 Amp (36)
40 Amp (83)
45 Amp (38)
50 Amp (86)
60 Amp (126)
Breaker Voltage Rating
12 VAC (2)
12 VDC (7)
24 VAC (3)
24 VDC (5)
48 VAC (3)
48 VDC (331)
60 VDC (175)
72 VDC (8)
110 VDC (1)
120 VAC (669)
Breaker Amperage Rating
1 Amp (1)
2 Amp (1)
3 Amp (2)
4 Amp (1)
10 Amp (16)
15 Amp (112)
16 Amp (3)
20 Amp (141)
25 Amp (65)
30 Amp (114)
Maximum Voltage (Molded Case Breaker)
120 VAC (22)
208 VAC (9)
240 VAC (427)
240 VDC (10)
250 VDC (522)
277 VAC (53)
347 VAC (6)
415 VAC (2)
480 VAC (60)
480/277 VAC (10)
Breaker Number of Poles
Four Pole (71)
Single Pole (576)
Three Pole (608)
Two Pole (838)
Interrupt Rating (Molded Case Breaker)
4.5 Ka (1)
10 Ka (19)
10 Ka 125 Volt (38)
10 Ka 240 Volt (84)
10 Ka 250 Volt (93)
10 Ka 600/347 Volt (57)
10 Ka 600Y/347 Volt (26)
14 Ka (21)
14 Ka 125 Volt (57)
14 Ka 600 Volt (288)
Breaker Trip Speed
Fast Trip (66)
Normal Trip (302)
Slow Trip (167)
Very Fast Trip (19)
Poles (Molded Case Breaker)
Four Pole (20)
Single Pole (133)
Three Pole (1719)
Two Pole (697)
Line
HOM (95)
QO (457)
QOU (132)
QOUQ (8)
QOUR (28)
QQ (136)
Breaker Mechanism Type
Toggle (541)
Breaker Mount Type
Bolt-On (324)
Din Rail (555)
Plug-In (383)
Unit Mount (1)
Breaker Overcurrent Protection Rating
B Curve 3.2-4.8 X Amp Rating (66)
C Curve 7-10 X Amp Rating (302)
D Curve 10-14 X Amp Rating (167)
Z Curve 2.4-3.6 X Amp Rating (19)
Breaker Protection For
High Inrush Current (167)
Sensitive Equipment (66)
Ultra Sensitive Equipment (19)
Breaker Switching Type
Thermomagnetic (541)
Breaker Type
Branch Circuit Breaker (194)
Supplementary Breaker (235)
Breaker UL Rating
Non UL Breaker (112)
UL 489 Listed (194)
UL 1077 Recognized (235)
Breaker Unit
Complete Unit (541)
Frame Type (Molded Case Breaker)
B Frame (337)
E Frame (16)
H Frame (564)
J Frame (242)
L Frame (124)
LA Frame (40)
LH Frame (15)
M Frame (57)
P Frame (138)
Q Frame (282)
Interrupt Code (Molded Case Breaker)
B Interrupt Rating (84)
D Interrupt Rating (492)
G Interrupt Rating (570)
J Interrupt Rating (500)
K Interrupt Rating (8)
L Interrupt Rating (109)
R Interrupt Rating (15)
Mounting (Molded Case Breaker)
Busbar (52)
DIN Rail (76)
I-Line (841)
Plug-In (1)
Unit Mount (922)
Number of Jaws
4 (24)
4 Without Jaw Release (7)
5 (4)
7 (2)
13 (1)
Number of Meter Sockets
2 (1)
3 (1)
6 (1)
Number of Spaces
3 (1)
4 (10)
8 (45)
10 (2)
12 (6)
16 (5)
20 (10)
30 (9)
42 (5)
54 (3)
Phase
Single Phase (57)
Three Phase (6)
UL Listing (Molded Case Breaker)
UL 489 (1496)
Normally In Stock
Schneider Electric QBL22150 Square D Breaker Q Frame 150 Amp Two Pole
Free U.S Ground shipping
$294.77
$245.64
Normally In Stock
Schneider Electric M9F42110 Single Pole 10 Amp Breaker
Free U.S Ground shipping
$114.30
$95.25
Normally In Stock
Schneider Electric M9F42115 Single Pole 15 Amp Breaker
Free U.S Ground shipping
$150.38
$125.32
Normally In Stock
Schneider Electric M9F53335 Three Pole 35 Amp Breaker
Free U.S Ground shipping
$572.38
$476.98
Normally In Stock
Schneider Electric QBM22200TN Square D Breaker Q Frame 200 Amp Two Pole
Free U.S Ground shipping
$653.39
$544.49
Normally In Stock
Schneider Electric M9F11225 Two Pole 25 Amp Breaker
Free U.S Ground shipping
$258.73
$215.61
Normally In Stock
Schneider Electric M9F21108 Single Pole 8 Amp Breaker
Free U.S Ground shipping
$106.22
$88.52
Normally In Stock
Schneider Electric M9F22213 Two Pole 13 Amp Breaker
Free U.S Ground shipping
$229.28
$191.07
Normally In Stock
Schneider Electric M9F22363 Three Pole 63 Amp Breaker
Free U.S Ground shipping
$371.30
$309.42
Normally In Stock
Schneider Electric M9F22432 Four Pole 32 Amp Breaker
Free U.S Ground shipping
$420.41
$350.34
Normally In Stock
Schneider Electric M9F23332 Three Pole 32 Amp Breaker
Free U.S Ground shipping
$331.32
$276.10

FAQs

Q: What types of Square D circuit breakers are available?
Square D offers miniature circuit breakers for residential and light commercial use, molded case circuit breakers for industrial and commercial applications, and specialty breakers such as AFCIs and GFCIs.

Q: What is the PowerPact series used for?
Square D PowerPact breakers are molded case circuit breakers designed for higher current industrial and commercial applications where reliable overcurrent and short-circuit protection is required.

Q: What is the difference between QO and Homeline breakers?
QO breakers feature faster trip response and visible trip indicators, while Homeline breakers offer similar protection at a lower cost, making them suitable for residential and light commercial installations.

Q: Are Square D breakers the same as Schneider Electric breakers?
Square D is a brand owned by Schneider Electric. Square D breakers are part of Schneider Electric’s product portfolio and are primarily designed for North American standards and applications.

Q: What is the difference between circuit breakers and fuses?
Fuses provide protection by melting and must be replaced after operation, while circuit breakers trip during overcurrent conditions and can be reset and reused. Circuit breakers offer greater convenience and branch circuit protection, while fuses are simpler and often less expensive initially.

Why Buy Square D Breakers from RSP Supply

RSP Supply offers a complete selection of Square D miniature and molded case circuit breakers for residential, commercial, and industrial applications. Our catalog includes PowerPact MCCBs, QO and Homeline breakers, and specialty protection devices to meet a wide range of electrical requirements. Customers rely on RSP Supply for knowledgeable technical support, dependable sourcing, and trusted electrical components that support safe and reliable power distribution.