Square D Digest 179

I-Line™ Panelboards—600 Vac, 250 Vdc

Molded Case Circuit Breakers for I-Line Panelboards Refer to I-Line Power Distribution Panelboards

www.se.com/us

LA/LH-frame Thermal Magnetic Circuit Breakers L-frame circuit breaker utilizes 6 in. of available I-Line bus Table 9.132: L-frame—400 A, Thermal-magnetic (600 Vac) Ampere Rating AC Magnetic Trip Settings Standard Interrupting High Interrupting

Terminal Wire Range

High

Catalog Number

Catalog Number

Low

2-pole, 600 Vac, 250 Vdc [62] 125A 625

9 PANELBOARDS

LA26125( ) LA26150( ) LA26175( ) LA26200( ) LA26225( ) LA26250( ) LA26300( ) LA26350( ) LA26400( )

LH26125( ) LH26150( ) LH26175( ) LH26200( ) LH26225( ) LH26250( ) LH26300( ) LH26350( ) LH26400( )

1250 1500 1750 2000 2250 2500 3000 3500 4000 1250 1500 1750 2000 2250 2500 3000 3500 4000

150A 175A 200A 225A 250A 300A 350A 400A 150A 175A 200A 225A 250A 300A 350A 400A

750 875

AL400LA (1) #1 AWG–600 kcmil or (2) #1 AWG–250 kcmil ALorCu

1000 1125 1250 1500 1750 2000

3-pole, 600 Vac, 250 Vdc 125A 625

LA36125 LA36150 LA36175 LA36200 LA36225 LA36250 LA36300 LA36350 LA36400

LH36125 LH36150 LH36175 LH36200 LH36225 LH36250 LH36300 LH36350

750 875

AL400LA (1) #1 AWG–600 kcmil or (2) #1 AWG–250 kcmil ALorCu

1000 1125 1250 1500 1750 2000

LA36400 2- and 3-pole Circuit Breaker

LH36400 LA circuit breaker accessories can be found in Supplemental Digest Section 3. LA circuit breaker dimensions can be found in Digest Section 7. Mechanical lug kits for LA, LH, and Q4 circuit breakers can be found in Supplemental Digest Section 3. Table 9.133: Interrupt Ratings (kA) LA LH 240V 42 65 480V 30 35 600V 22 25 PowerPacT L- and M-frame for I-Line™ Panelboards and Switchboards Table 9.134: L-frame 600 A Circuit Breakers with Lugs and Factory-Sealed Electronic Trip Units Suitable for Reverse Connection [63] (L-frame circuit breaker utilizes 6 in. of available I-Line bus) Electronic Trip Unit

Sensor Rating

Catalog Number [64]

Terminal

Type

Function Trip Unit

600 Vac, 53/60 Hz, 3P

L( )A36250U31X L( )A36400U31X L( )A36600U31X L( )A36250U33X L( )A36400U33X L( )A36600U33X L( )A36400U43X L( )A36600U43X L( )A36400U53X L( )A36600U53X L( )A36400U44X L( )A36600U44X

AL400L61K3 [66] AL600LF52K3 [67] (2) 3/0–500 kcmil Al orCu. AL400L61K3 [66]

250A 400A 600A 250A 400A 600A

MicroLogic Standard

3.3 [65]

LI

MicroLogic Standard MicroLogic Ammeter MicroLogic Energy MicroLogic Ammeter MicroLogic Energy

3.3S [65]

LSI

LSI

5.3A 400A 600A 5.3E 400A 600A

AL600LF52K3 (2) 3/0–500 kcmil Al orCu.

LSI

LSIG 6.3A 400 A 600A LSIG 6.3E 400 A 600A

L( )A36400U54X L( )A36600U54X Table 9.135: Interrupt Ratings Codes (kA) for PowerPacT L and M Frames G J L [68] R 240V 65 100 125 200 480V 35 65 100 200 600V 18 25 50 100

PowerPacT L-Frame LG/LJ/LL/LR 2- and 3-pole 4.5 in. (114 mm)

[62] 2-pole circuit breaker catalog numbers are completed by adding required phase connection letters as suffix to catalog number. See H/J/L-Frame Circuit Breaker/Switch Phase Options— ExampleHDA26150( ),page9-55. [63] See Supplemental Digest page 3-4 for circuit breakers with field-interchangeable trip units. [64] For 100% rated circuit breakers (250 A and 400 A only), add a “C” in the 9th character place (for example, LRA36400CU31X). To complete catalog number, replace the blank with the appropriate interrupting rating (G, J, L or R). [65] 3P circuit breakers with this trip unit can be used for 2P applications. [66] AL400L61K3 terminal wire ranges are (1) 2 AWG–600 kcmil Cu or (1) 2 AWG–500 kcmil Al. [67] AL600LF52K3 terminal wire range is (2) 3/0 –500 kcmil. [68] L interrupting rating is not available in M-frame.

9-56

© 2024 Schneider Electric All Rights Reserved