L-Frame Circuit Breakers

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.

Found 136 items
Filters
Found 136 items
Manufacturer
Schneider Electric (136)
Square D (136)
Component
Molded Case Circuit Breaker (136)
Amperage (Molded Case Breaker)
250 Amp (20)
300 Amp (1)
400 Amp (75)
600 Amp (37)
70-250 Amp (1)
Frame Type (Molded Case Breaker)
L Frame (124)
Interrupt Code (Molded Case Breaker)
D Interrupt Rating (17)
G Interrupt Rating (45)
J Interrupt Rating (38)
L Interrupt Rating (20)
R Interrupt Rating (4)
Interrupt Rating (Molded Case Breaker)
100 Ka (2)
100 Ka 240 Volt (38)
100 Ka 480 Volt (17)
100 Ka 600 Volt (4)
125 Ka (3)
125 Ka 240 Volt (17)
14 Ka 600 Volt (17)
18 Ka 480 Volt (17)
18 Ka 600 Volt (44)
200 Ka 240 Volt (4)
Maximum Voltage (Molded Case Breaker)
480 VAC (2)
480/277 VAC (3)
500 VDC (3)
600 VAC (126)
Mounting (Molded Case Breaker)
I-Line (43)
Unit Mount (81)
Poles (Molded Case Breaker)
Three Pole (131)
Four Pole (3)
UL Listing (Molded Case Breaker)
UL 489 (121)
Normally In Stock
Schneider Electric LGL36000S60X L Frame Square D Breaker 600 Amp Three Pole
Free U.S Ground shipping
$6621.92
$5518.27
Normally In Stock
Schneider Electric LDL36400U31X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$6310.75
$5258.96
Normally In Stock
Schneider Electric LDL36400CU44X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$11725.93
$9771.61
Normally In Stock
Schneider Electric LGL36400CU44X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$12343.03
$10285.86
Normally In Stock
Schneider Electric LGL46250U31X L Frame Square D Breaker 250 Amp Four Pole
Free U.S Ground shipping
$7296.53
$6080.44
Normally In Stock
Schneider Electric LGL46400U31X L Frame Square D Breaker 400 Amp Four Pole
Free U.S Ground shipping
$8473.16
$7060.97
Normally In Stock
Schneider Electric LGL46400CU31X L Frame Square D Breaker 400 Amp Four Pole
Free U.S Ground shipping
$9913.90
$8261.58
Normally In Stock
Schneider Electric LDL36600U31X L Frame Square D Breaker 600 Amp Three Pole
Free U.S Ground shipping
$9294.19
$7745.16
Normally In Stock
Schneider Electric LDL36400U33X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$7048.12
$5873.43
Normally In Stock
Schneider Electric LDL36600U33X L Frame Square D Breaker 600 Amp Three Pole
Free U.S Ground shipping
$10031.57
$8359.64
Normally In Stock
Schneider Electric LGL36250U33X L Frame Square D Breaker 250 Amp Three Pole
Free U.S Ground shipping
$7418.11
$6181.76
Normally In Stock
Schneider Electric LGL36400U33X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$7418.11
$6181.76
Normally In Stock
Schneider Electric LGL36600U33X L Frame Square D Breaker 600 Amp Three Pole
Free U.S Ground shipping
$10559.74
$8799.78
Normally In Stock
Schneider Electric LJL36250U33X L Frame Square D Breaker 250 Amp Three Pole
Free U.S Ground shipping
$11859.29
$9882.74
Normally In Stock
Schneider Electric LJL36400U33X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$11859.29
$9882.74
Normally In Stock
Schneider Electric LJL36600U33X L Frame Square D Breaker 600 Amp Three Pole
Free U.S Ground shipping
$14556.43
$12130.36
Normally In Stock
Schneider Electric LGL36250U31X L Frame Square D Breaker 250 Amp Three Pole
Free U.S Ground shipping
$6642.82
$5535.68
Normally In Stock
Schneider Electric LLL36400U33X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$13741.93
$11451.61
Normally In Stock
Schneider Electric LRL36600U33X L Frame Square D Breaker 600 Amp Three Pole
Free U.S Ground shipping
$21024.72
$17520.60
Normally In Stock
Schneider Electric LGL36400U31X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$6642.82
$5535.68
Normally In Stock
Schneider Electric LGL36600U31X L Frame Square D Breaker 600 Amp Three Pole
Free U.S Ground shipping
$9784.48
$8153.73
Normally In Stock
Schneider Electric LDL36400U43X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$8175.08
$6812.57
Normally In Stock
Schneider Electric LGL36400U43X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$8605.20
$7171.00
Normally In Stock
Schneider Electric LGL36600U43X L Frame Square D Breaker 600 Amp Three Pole
Free U.S Ground shipping
$11745.55
$9787.96
Normally In Stock
Schneider Electric LJL36400U43X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$13046.39
$10871.99
Normally In Stock
Schneider Electric LJL36600U43X L Frame Square D Breaker 600 Amp Three Pole
Free U.S Ground shipping
$15742.22
$13118.52
Normally In Stock
Schneider Electric LLL36400U43X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$14929.02
$12440.85
Normally In Stock
Schneider Electric LJL36250U31X L Frame Square D Breaker 250 Amp Three Pole
Free U.S Ground shipping
$11084.02
$9236.68
Normally In Stock
Schneider Electric LJL36400U31X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$11084.02
$9236.68
Normally In Stock
Schneider Electric LJL36600U31X L Frame Square D Breaker 600 Amp Three Pole
Free U.S Ground shipping
$13781.14
$11484.28
Normally In Stock
Schneider Electric LDM36400U31X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$6310.75
$5258.96
Normally In Stock
Schneider Electric LGL37030D27 L Frame Square D Breaker 300 Amp Three Pole
Free U.S Ground shipping
$9086.33
$7571.94
Normally In Stock
Schneider Electric LGL37040D30 L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$9086.33
$7571.94
Normally In Stock
Schneider Electric LGL37060D33 L Frame Square D Breaker 600 Amp Three Pole
Free U.S Ground shipping
$11374.24
$9478.53
Normally In Stock
Schneider Electric LGP36400CU33X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$8547.68
$7123.07
Normally In Stock
Schneider Electric LLM36000S40X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$6500.30
$5416.92
Normally In Stock
Schneider Electric LGL36000S40X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$5977.36
$4981.13
Normally In Stock
Schneider Electric LDL36250U31X L Frame Square D Breaker 250 Amp Three Pole
Free U.S Ground shipping
$6310.75
$5258.96
Normally In Stock
Schneider Electric LLL36250U31X L Frame Square D Breaker 250 Amp Three Pole
Free U.S Ground shipping
$12966.65
$10805.54
Normally In Stock
Schneider Electric LGL36400U44X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$11214.76
$9345.63
Normally In Stock
Schneider Electric LGL36600U44X L Frame Square D Breaker 600 Amp Three Pole
Free U.S Ground shipping
$14355.08
$11962.57
Normally In Stock
Schneider Electric LJL36400U44X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$15655.93
$13046.61
Normally In Stock
Schneider Electric LLL36400U44X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$17538.58
$14615.48
Normally In Stock
Schneider Electric LLL36400U31X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$12967.93
$10806.61
Normally In Stock
Schneider Electric LLL36600U31X L Frame Square D Breaker 600 Amp Three Pole
Free U.S Ground shipping
$15475.52
$12896.27
Normally In Stock
Schneider Electric LRL36400U31X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$16775.64
$13979.70
Normally In Stock
Schneider Electric LDL36250CU31X L Frame Square D Breaker 250 Amp Three Pole
Free U.S Ground shipping
$7384.12
$6153.43
Normally In Stock
Schneider Electric LDL36400CU31X L Frame Square D Breaker 400 Amp Three Pole
Free U.S Ground shipping
$7384.12
$6153.43

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.