SE Digest 178

I-Line™ Panelboards—600 Vac, 250 Vdc

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

www.se.com/us

LA Circuit Breakers

Table 9.139: 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 [65] 125A 625

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 one #1 AWG–600 kcmil or two #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 one #1 AWG–600 kcmil or two #1 AWG–250 kcmil ALorCu

1000 1125 1250 1500 1750 2000

LA36400 2- and 3-pole Circuit Breaker

9 PANELBOARDS

LH36400 LA acccessories starting on Supplemental Digest Section 3. LA dimensions Molded Case Circuit Breaker Dimensions, page LA optional lugs Mechanical Lugs, page . K-frame accessories starting on Supplemental Digest Section 3. Table 9.140: Interrupt Ratings (kA) LA 240V 42 480V 30 600V 22 PowerPacT L- and M-frame for I-Line™ Panelboards and Switchboards Table 9.141: L-frame 600 A Circuit Breakers with Lugs and Factory-Sealed Electronic Trip Units Suitable for Reverse Connection [66] (L-frame circuit breaker utilizes 6" of available I-Line bus) Electronic Trip Unit

Sensor Rating

Catalog Number [67]

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 [69] AL600LF52K3 [70] (2) 3/0–500 kcmil Al orCu. AL400L61K3 [69]

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

MicroLogic Standard

3.3 [68]

LI

MicroLogic Standard MicroLogic Ammeter MicroLogic Energy MicroLogic Ammeter MicroLogic Energy

3.3S [68]

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 9.142: Interrupt Ratings (kA) for PowerPacT L and M Frames G J L [71]

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

R

240V 480V

65 35 18

100

125 100

200 200 100

65 25

600V [72]

50

[65] 2-pole circuit breaker catalog numbers are completed by adding required phase connection letters as suffix to catalog number. See page 9-54. [66] See Supplemental Digest page 3-4 for circuit breakers with field-interchangeable trip units. [67] For 100% rated circuit breakers (250 A and 400 A only), add a “C” in the 9th character place (for example, LRA36400CU31X). [68] 3P circuit breakers with this trip unit can be used for 2P applications. [69] AL400L61K3 terminal wire ranges are (1) 2 AWG–600 kcmil Cu or (1) 2 AWG–500 kcmil Al. [70] AL600LFS52K3 terminal wire range is (2) 3/0 –500 kcmil.

[71] L interrupting rating is not available in M-frame. [72] 600 V interrupt ratings not available for D-frame.

9-59

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