LA-Frame Circuit Breaker
Square D by Schneider Electric has a wide range of Molded Case Circuit Breakers that are designed with thermal magnetic protection. Thermal trip element circuit breakers protect a circuit against a small overload that continues for a long time. The larger the overload, the faster the circuit breaker will trip. The thermal element will also protect against temperature increases. Magnetic circuit breakers will trip instantly when the preset current is present. Thermal magnetic circuit breakers contain both types of protection in a single unit.
LA and LH Molded Case Circuit Breakers provide thermal magnetic protection from 125 to 400 Amps as part of the Square D portfolio of molded case circuit breakers. They are available in 2 and 3 pole design with unit-mount, I-line or rear-connect constructions. LH molded case circuit breakers are used in industrial enclosures, switchboards, panelboards, busway plug-in units, combination starters and motor control centers.
Found 41 items
Filters
Found 41 items
Manufacturer
Schneider Electric (41)
Square D (41)
Component
Molded Case Circuit Breaker (41)
Amperage (Molded Case Breaker)
125 Amp (2)
150 Amp (2)
175 Amp (1)
200 Amp (4)
225 Amp (3)
250 Amp (5)
300 Amp (5)
350 Amp (5)
400 Amp (14)
Frame Type (Molded Case Breaker)
LA Frame (40)
Interrupt Rating (Molded Case Breaker)
10 Ka 125 Volt (38)
10 Ka 250 Volt (38)
22 Ka 600 Volt (38)
30 Ka 480 Volt (38)
42 Ka 120 Volt (1)
42 Ka 240 Volt (38)
Maximum Voltage (Molded Case Breaker)
250 VDC (38)
600 VAC (41)
Mounting (Molded Case Breaker)
Unit Mount (38)
Number of Spaces
8 (1)
Phase
Single Phase (1)
Poles (Molded Case Breaker)
Two Pole (11)
Three Pole (28)
Normally In Stock
Schneider Electric LAL26200 2P 600VAC/250VDC 200A LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$4977.22
$4147.68
Normally In Stock
Schneider Electric LAL26200MB LA, LH, Q4 LA Frame MOLDED CASE CIRCUIT BREAKER, 600V, 200A, 2P, SHORT HANDLE
Free U.S Ground shipping
$4977.22
$4147.68
Normally In Stock
Schneider Electric LAL26250 2P 600VAC/250VDC 250A, LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$4977.22
$4147.68
Normally In Stock
Schneider Electric LAL26250MB FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER, 600V, 250A, 2P, SHORT HANDLE
Free U.S Ground shipping
$4977.22
$4147.68
Normally In Stock
Schneider Electric LAL26300 2P 600VAC/250VDC 300A LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$4977.22
$4147.68
Normally In Stock
Schneider Electric LAL26300MB FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER,600VAC/250VDC 300A 2P, LAL MAIN,SHORT HANDLE
Free U.S Ground shipping
$4977.22
$4147.68
Normally In Stock
Schneider Electric LAL26350 2P 600VAC/250VDC 350A, LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$7465.82
$6221.52
Normally In Stock
Schneider Electric LAL26350MB FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER, 600V, 350A, 2P, SHORT HANDLE
Free U.S Ground shipping
$4977.22
$4147.68
Normally In Stock
Schneider Electric LAL26400 2P 600VAC/250VDC 400A LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$4977.22
$4147.68
Normally In Stock
Schneider Electric LAL26400MB FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER,600VAC/250VDC 400A, 2P, LAL MAIN, SHORT HANDLE
Free U.S Ground shipping
$4977.22
$4147.68
Normally In Stock
Schneider Electric LAL26400WB FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER 600V, 400A, 2P, MECH INTERLOCK
Free U.S Ground shipping
$7948.25
$6623.54
Normally In Stock
Schneider Electric LAL36125 3P 600VAC/250VDC 125A, LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL36125MB FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER, 600V, 125A, 3P, SHORT HANDLE
Free U.S Ground shipping
$9058.21
$7548.51
Normally In Stock
Schneider Electric LAL36150 3P 600VAC/250VDC 150A, LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL36150MB FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER, 600V, 150A, 3P, SHORT HANDLE
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL36175 3P 600VAC/250VDC 175A LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL36200 3P 600VAC/250VDC 200A LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL36200MB FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER 600V, 200A, 3P, SHORT HANDLE
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL36225 3P 600VAC/250VDC 225A, LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL362251021 FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER 600V, 225A, 3P, SHUNT TRIP
Free U.S Ground shipping
$7223.32
$6019.43
Normally In Stock
Schneider Electric LAL36225MB LA, LH, Q4 LA Frame MOLDED CASE CIRCUIT BREAKER, 600V, 225A, 3P, SHORT HANDLE
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL36250 3P 600VAC/250VDC 250A, LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL362501021 FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER 600V, 250A, 3P, SHUNT TRIP
Free U.S Ground shipping
$7223.32
$6019.43
Normally In Stock
Schneider Electric LAL36250MB 3P 600VAC/250VDC 250A, LAL MAIN FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL36300 3P 600VAC/250VDC 300A LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$3725.09
$3104.24
Normally In Stock
Schneider Electric LAL363001021 FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER, 600VAC/250VDC, 300A, 3P, SHUNT TRIP
Free U.S Ground shipping
$7223.32
$6019.43
Normally In Stock
Schneider Electric LAL36300MB 3P 600VAC/250VDC 300A LAL MAIN FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL36350 3P 600VAC/250VDC 350A, LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL363501021 FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER,600VAC/250VDC, 350A, 3P,SHUNT TRIP
Free U.S Ground shipping
$7223.32
$6019.43
Normally In Stock
Schneider Electric LAL36350MB FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER, 600VAC/250VDC, 350A,3P, SHORT HANDLE
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL36400 3P 600VAC/250VDC 400A LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER
Free U.S Ground shipping
$4016.11
$3346.76
Normally In Stock
Schneider Electric LAL364001021 FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER, 600VAC/250VDC, 400A, 3P, SHUNT TRIP
Free U.S Ground shipping
$7223.32
$6019.43
Normally In Stock
Schneider Electric LAL36400MB FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER, 600V, 400A, 3P, SHORT HANDLE
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL36400V 3P 600VAC/250VDC 400A LAL FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER WITH VISI-BLADE
Free U.S Ground shipping
$10870.24
$9058.53
Normally In Stock
Schneider Electric LAL36400WB FA/LA LA Frame MOLDED CASE CIRCUIT BREAKER 600V, 400A, 3P,
Free U.S Ground shipping
$9540.64
$7950.53
Normally In Stock
Schneider Electric LAL3640031M LAL LA Frame MOTOR CIRCUIT PROTECTOR, 600VAC/250VDC, 400A, 3P
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL3640035M LAL LA Frame MOTOR CIRCUIT PROTECTOR, 600VAC/250VDC, 400A, 3P
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LAL3640036M LAL LA Frame MOTOR CIRCUIT PROTECTOR, 600VAC/250VDC, 400A, 3P
Free U.S Ground shipping
$6038.81
$5032.34
Normally In Stock
Schneider Electric LHL3640035M LA Frame MOTOR CIRCUIT PROTECTOR 600V 400A
Free U.S Ground shipping
$9933.52
$8277.93
Normally In Stock
Schneider Electric LHL3640036M LA Frame MOTOR CIRCUIT PROTECTOR 600V 400A
Free U.S Ground shipping
$14900.27
$12416.89
Normally In Stock
Schneider Electric LAP36400MT Circuit breaker, LA, 400A, 3 pole, 600VAC, 22kA, 250VDC
Free U.S Ground shipping
$6038.81
$5032.34
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.