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Home Breakers, Fuses & Circuit Protection Molded Case Circuit Breakers Square D Molded Case Circuit Breakers Square D Molded Case L Frame Circuit Breakers

L-Frame Circuit Breakers

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Square D by Schneider Electric’s PowerPact Multistandard circuit breakers are equipped with dual-break rotating contacts that reduce the amount of peak current during a short-circuit fault. They feature an over-center toggle mechanism providing quick-make, quick-break operation. Internal cross-bars provide common opening and closing of all poles with a single handle. The circuit breaker handle can assume any of three positions, ON, tripped or OFF. The center tripped position provides positive visual indication that the circuit breaker has tripped. 

PowerPact L-frame circuit breakers are designed with Micrologic electronic trip units. Micrologic electronic trip units provide adjustable protection settings for greater system flexibility. They allow users to monitor both power and energy. Through direct access to information and networking using open protocols, PowerPact circuit breakers with Micrologic trip units let users optimize the management of their electrical installations. Using Micrologic trip unit sensors and intelligence, PowerPact L-frame circuit breakers provide access to measurements of all the main electrical parameters on the built-in screen, on a dedicated front display module or through the communication network. Integration of measurement functions provide users with operating assistance functions including, time-stamped event tables and histories, alarms tripped by user-selected measurement values and maintenance indicators.

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Schneider Electric LLA36000S40X AUTOMATIC MOLDED CASE SWITCH 600V 400A
Schneider Electric LLA36000S40X AUTOMATIC MOLDED CASE SWITCH 600V 400A
$8596.06 $11835.00
Schneider LLA36000S40X Automatic switch 400 A 3P I-Line CE, NMX, CSA, UL Listed, CCC, IEC PowerPact L L AL600LF52K3 Magnetic 4800 A 13.38 in (339.85 mm 5.51 in (139.95 mm 6.61 in (167.89 mm 600 V AC Lugs load, I-Line connection line AWG 3/0-500 kcmil aluminium/copper2 Compliant,
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Schneider Electric LJA36400U33XYP Circuit breaker, PowerPact L, I-Line, Micrologic 3.3S, 400A, 3 poles, 600 V, 25 kA, 80% rated, handle padlock
Schneider Electric LJA36400U33XYP Circuit breaker, PowerPact L, I-Line, Micrologic 3.3S, 400A, 3 poles, 600 V, 25 kA, 80% rated, handle padlock
$10337.07 $14232.00
Schneider LJA36400U33XYP Circuit breaker 400 A 3P 80 % I-Line CSA 22-2, CCC, IEC, CE, UL 489, NMX, NEMA PowerPact L 14.7 in (373.38 mm 5.94 in (150.88 mm 6.61 in (167.89 mm I-Line connection line, Lugs load Current limiter ABC 100 kA 240 V AC, 65 kA 480 V AC, 25 kA 600 V AC Elect
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Schneider Electric LDA36400CU33X Circuit breaker, PowerPact L, I-Line, Micrologic 3.3S, 400A, 3 poles, 600 V, 14 kA, 100% rated
Schneider Electric LDA36400CU33X Circuit breaker, PowerPact L, I-Line, Micrologic 3.3S, 400A, 3 poles, 600 V, 14 kA, 100% rated
$7088.20 $9759.00
Schneider LDA36400CU33X Circuit breaker 400 A 3P 100 % I-Line CSA 22-2, CCC, IEC, CE, UL 489, NMX, NEMA PowerPact L 14.7 in (373.38 mm 5.94 in (150.88 mm 6.61 in (167.89 mm I-Line connection line, Lugs load Current limiter ABC 25 kA 240 V AC, 18 kA 480 V AC, 14 kA 600 V AC Electr
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Schneider Electric LGA36000S60X AUTOMATIC MOLDED CASE SWITCH 600V 600A
Schneider Electric LGA36000S60X AUTOMATIC MOLDED CASE SWITCH 600V 600A
$8604.22 $11846.25
Schneider LGA36000S60X Automatic switch 600 A 3P I-Line CCC, CSA, CE, NMX, UL Listed, IEC PowerPact L G AL600LF52K3 Magnetic 6600 A 13.38 in (339.85 mm 5.51 in (139.95 mm 6.61 in (167.89 mm 600 V AC Lugs load, I-Line connection line AWG 3/0-500 kcmil aluminium/copper2 Compliant,
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Schneider Electric LLA36000S60X AUTOMATIC MOLDED CASE SWITCH 600V 600A
Schneider Electric LLA36000S60X AUTOMATIC MOLDED CASE SWITCH 600V 600A
$13923.64 $19170.00
Schneider LLA36000S60X Automatic switch 600 A 3P I-Line CSA, NMX, CCC, UL Listed, IEC, CE PowerPact L L AL600LF52K3 Magnetic 6600 A 13 in (330.20 mm 6 in (152.40 mm 4.75 in (120.65 mm 600 V AC Lugs load, I-Line connection line AWG 3/0-500 kcmil aluminium/copper2 Compliant, EU RoH
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Schneider Electric LGA36400CU33X Circuit breaker, PowerPact L, I-Line, Micrologic 3.3S, 400A, 3 poles, 600 V, 18 kA, 100% rated
Schneider Electric LGA36400CU33X Circuit breaker, PowerPact L, I-Line, Micrologic 3.3S, 400A, 3 poles, 600 V, 18 kA, 100% rated
$7444.46 $10249.50
Schneider LGA36400CU33X Circuit breaker 400 A 3P 100 % I-Line CSA 22-2, CCC, IEC, CE, UL 489, NMX, NEMA PowerPact L 14.7 in (373.38 mm 5.94 in (150.88 mm 6.61 in (167.89 mm I-Line connection line, Lugs load Current limiter ABC 65 kA 240 V AC, 35 kA 480 V AC, 18 kA 600 V AC Electr
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Schneider Electric LGA36400U31XYP Circuit breaker, PowerPact L, I-Line, Micrologic 3.3, 400A, 3 poles, 600 V, 18 kA, 80% rated, handle padlock
Schneider Electric LGA36400U31XYP Circuit breaker, PowerPact L, I-Line, Micrologic 3.3, 400A, 3 poles, 600 V, 18 kA, 80% rated, handle padlock
$5990.01 $8247.00
Schneider LGA36400U31XYP Circuit breaker 400 A 3P 80 % I-Line CSA 22-2, CCC, IEC, CE, UL 489, NMX, NEMA PowerPact L 14.7 in (373.38 mm 5.94 in (150.88 mm 6.61 in (167.89 mm I-Line connection line, Lugs load Current limiter ABC 65 kA 240 V AC, 35 kA 480 V AC, 18 kA 600 V AC Electr
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Schneider Electric LLA36600U43X Circuit breaker, PowerPact L, I-Line, Micrologic 5.3A, 600A, 3 poles, 600 V, 50 kA, 80% rated
Schneider Electric LLA36600U43X Circuit breaker, PowerPact L, I-Line, Micrologic 5.3A, 600A, 3 poles, 600 V, 50 kA, 80% rated
$14851.89 $20448.00
Schneider LLA36600U43X Circuit breaker 600 A 3P 80 % I-Line CSA 22-2, CCC, IEC, CE, UL 489, NMX, NEMA PowerPact L 14.7 in (373.38 mm 5.94 in (150.88 mm 6.61 in (167.89 mm I-Line connection line, Lugs load Current limiter ABC 125 kA 240 V AC, 100 kA 480 V AC, 50 kA 600 V AC Electr
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Schneider Electric LJA34250WU31X Circuit breaker, PowerPact L, I-Line, Micrologic 3.3, 250A, 3 poles, 480 V, 65 kA, 80% rated, mission critical
Schneider Electric LJA34250WU31X Circuit breaker, PowerPact L, I-Line, Micrologic 3.3, 250A, 3 poles, 480 V, 65 kA, 80% rated, mission critical
$11220.62 $15448.50
Schneider LJA34250WU31X Circuit breaker 250 A 3P 80 % I-Line CSA 22-2, CCC, IEC, CE, UL 489, NMX, NEMA PowerPact L 11.3 in (287.02 mm 5.5 in (139.70 mm 6.61 in (167.89 mm I-Line connection line, Terminal nut load Current limiter ABC 100 kA 240 V AC, 65 kA 480 V AC, 65 kA 240 V AC
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Schneider Electric LGA36250U33X Circuit breaker, PowerPact L, I-Line, Micrologic 3.3S, 250A, 3 poles, 600 V, 18 kA, 80% rated
Schneider Electric LGA36250U33X Circuit breaker, PowerPact L, I-Line, Micrologic 3.3S, 250A, 3 poles, 600 V, 18 kA, 80% rated
$6503.14 $8953.50
Schneider LGA36250U33X Circuit breaker 250 A 3P 80 % I-Line CSA 22-2, CCC, IEC, CE, UL 489, NMX, NEMA PowerPact L 14.7 in (373.38 mm 5.94 in (150.88 mm 6.61 in (167.89 mm I-Line connection line, Lugs load Current limiter ABC 65 kA 240 V AC, 35 kA 480 V AC, 18 kA 600 V AC Electron
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Schneider Electric LLA36600U33X Circuit breaker, PowerPact L, I-Line, Micrologic 3.3S, 600A, 3 poles, 600 V, 50 kA, 80% rated
Schneider Electric LLA36600U33X Circuit breaker, PowerPact L, I-Line, Micrologic 3.3S, 600A, 3 poles, 600 V, 50 kA, 80% rated
$13863.74 $19087.50
Schneider LLA36600U33X Circuit breaker 600 A 3P 80 % I-Line CSA 22-2, CCC, IEC, CE, UL 489, NMX, NEMA PowerPact L 14.7 in (373.38 mm 5.94 in (150.88 mm 6.61 in (167.89 mm I-Line connection line, Lugs load Current limiter ABC 125 kA 240 V AC, 100 kA 480 V AC, 50 kA 600 V AC Electr
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Schneider Electric LJA36600U31XYP Circuit breaker, PowerPact L, I-Line, Micrologic 3.3, 600A, 3 poles, 600 V, 25 kA, 80% rated, handle padlock
Schneider Electric LJA36600U31XYP Circuit breaker, PowerPact L, I-Line, Micrologic 3.3, 600A, 3 poles, 600 V, 25 kA, 80% rated, handle padlock
$11938.61 $16437.00
Schneider LJA36600U31XYP Circuit breaker 70-250 A 3P 80 % I-Line CSA 22-2, CCC, IEC, CE, UL 489, NMX, NEMA PowerPact L 11.3 in (287.02 mm 5.51 in (139.95 mm 6.61 in (167.89 mm I-Line connection line, Busbar connection load Current limiter ABC 100 kA 240 V AC, 65 kA 480 V AC, 25 k
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What is a Circuit Breaker?

There are two different types of technologies that are commonly used in circuit breakers. 

Magnetic Breakers

Magnetic Breakers are designed to react to short circuits or sharp spikes in voltage and current. The more current that passes through the breaker’s electromagnet, the stronger the magnet becomes. When the current exceeds the rating for that particular breaker, the magnetic force becomes strong enough that it will pull the contact back and disconnect it from the other contact, disconnecting power from the device.

Thermal Protection Breakers

Thermal Protection Breakers protect against a sustained overcurrent, or a higher current, for a longer period of time. Thermal protection uses a Bimetal strip that will bend the contacts away from each other to disconnect power. Thermal Magnetic Breakers are the most common type of circuit breakers. They combine magnetic technology to protect against short circuits or sharp spikes and thermal technology that protects against sustained overcurrent for a long period of time.

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