Technical Data Bulletin

© 2020 Schneider Electric
All Rights Reserved
12/2/2020
7-37
www.se.com/us
Q/LA/LH/Q4-Frame PowerPact™ Molded Case Circuit Breakers
Class 0734 / Refer to Catalogs: 0734CT0201
Q4-Frame Molded Case Circuit Breaker (400 A)
Q4L
2P and 3P
250–400 A
•
Thermal magnetic protection from 250 A up to 400 A at 240 Vac
•
2- and 3-pole unit mount and I-Line constructions
•
25 kA at 240 Vac UL interrupting rating
•
UL, CSA and IEC certified
NOTE: Consider using PowerPact™ circuit breakers for situations requiring circuit
breaker accessories. See PowerPact Accessories, page 7-51 for more information.
Table 7.63: Q4-Frame, 400 A, Thermal-Magnetic Circuit Breakers, Individually-
Mounted, 240 Vac
Ampere
Rating
Adjustable AC Magnetic Trip [25] Standard
Interrupting
Cat. No.
Terminal Wire Range
Low
High
2P, 240 Vac
250 1250 A 2500 A
Q4L2250
AL400LA
(1) 1 AWG–600 kcmil Al
or
(2) 1 AWG–250 kcmil Al
300 1500 A 3000 A
Q4L2300
350 1750 A 3500 A
Q4L2350
400 2000 A 4000 A
Q4L2400
3P, 240 Vac
250 1250 A 2500 A
Q4L3250
AL400LA
(1) 1 AWG–600 kcmil Al
or
(2) 1 AWG–250 kcmil Al
300 1500 A 3000 A
Q4L3300
350 1750 A 3500 A
Q4L3350
400 2000 A 4000 A
Q4L3400
Accessories see PowerPact Accessories, page 7-51 through Plug-In
and Drawout Mountings, page 7-60
Optional Lugs see Mechanical Lugs, page 7-56
Dimensions see Dimensions and Shipping Weights, page 7-83
Enclosures see Circuit Breaker Enclosures, page 7-85
LA/LH-Frame Molded Case Circuit Breaker (400 A)
LA/LHL
2P and 3P 125–400 A
•
Thermal magnetic protection from 125-400 A up to 600 Vac and 250 Vdc
•
2- and 3-pole unit mount and I-Line constructions
•
UL listed interrupting ratings from 30 kA to 35 kA at 480 Vac
•
UL, CSA and IEC certified
NOTE: Consider using PowerPact™ circuit breakers for situations requiring circuit
breaker accessories. See PowerPact Accessories, page 7-51 for more information.
Table 7.64: L-Frame, 400 A, Thermal-Magnetic, Individually-Mounted Circuit
Breakers, 400 Vac
Ampere
Rating
Adjustable AC
Magnetic Trip
Cat. No.
Terminal
Wire Range
Low
High
Standard
Interrupting
High Interrupting
2P, 600 Vac, 250 Vdc
125 A 625 A 1250 A LAL26125 LHL26125
AL400LA
(1) 1 AWG–600 kcmil Al
or (2) 1 AWG–250 kcmil Al
150 A 750 A 1500 A LAL26150 LHL26150
175 A 875 A 1750 A LAL26175 LHL26175
200 A 1000 A 2000 A LAL26200 LHL26200
225 A 1125 A 2250 A LAL26225 LHL26225
250 A 1250 A 2500 A LAL26250 LHL26250
300 A 1500 A 3000 A LAL26300 LHL26300
350 A 1750 A 3500 A LAL26350 LHL26350
400 A 2000 A 4000 A LAL26400 LHL26400
3P, 600 Vac, 250 Vdc
125 A 625 A 1250 A LAL36125 LHL36125
AL400LA
(1) 1 AWG–600 kcmil Al
or (2) 1 AWG–250 kcmil Al
150 A 750 A 1500 A LAL36150 LHL36150
175 A 875 A 1750 A LAL36175 LHL36175
200 A 1000 A 2000 A LAL36200 LHL36200
225 A 1125 A 2250 A LAL36225 LHL36225
250 A 1250 A 2500 A LAL36250 LHL36250
300 A 1500 A 3000 A LAL36300 LHL36300
350 A 1750 A 3500 A LAL36350 LHL36350
400 A 2000 A 4000 A LAL36400 LHL36400
Accessories see PowerPact Accessories, page 7-51 through Plug-In
and Drawout Mountings, page 7-60
Optional Lugs see Mechanical Lugs, page 7-56
Dimensions see Dimensions and Shipping Weights, page 7-83
Enclosures see Circuit Breaker Enclosures, page 7-85
Table 7.65: Interrupting Ratings
Voltage
LAL LHL
240 Vac 42 kA 65 kA
480 Vac 30 kA 35 kA
600 Vac 22 kA 25 kA
7
MINIATURE AND MOLDED CASE
CIRCUIT BREAKERS
[25] UL magnetic trip setting tolerances are ±25% for low and ±20% for high from nominal value shown.