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Supplemental and Obsolescence Digest 174

Molded Case Circuit Breakers

L-frame Thermal-Magnetic Circuit Breakers

Class 600, 665, 736, 830

Consider using PowerPact® circuit breakers for situations requiring circuit breaker accessories.

Table 3.21:

L-frame—400 A, Thermal-Magnetic, I-Line® Construction, High Magnetic Withstand Circuit Breakers For Mission Critical Loads

Ampere Rating	AC Magnetic Level Factory Seta	Standard Interrupting		High Interrupting		Terminal Wire Range
		Cat. No.	$ Price	Cat. No.	$ Price
LA/LH MC Circuit Breaker, 3P, 480 Vac
200 A	4000 A	LA34200MC	3714.00	LH34200MC	5847.00	AL250LA (1) 4 AWG–350 kcmil Al
225 A	4500 A	LA34225MC	3714.00	LH34225MC	5847.00
250 A	5000 A	LA34250MC	3787.00	LH34250MC	5921.00
400 A	8000 A	LA34400MC	4827.00	LH34400MC	6761.00	AL400LA (1) 1 AWG–600 kcmil Al or (2) 1 AWG–250 kcmil Al

a	Factory set AC magnetic setting tolerances are +0–25% from max. value shown.

 

Table 3.22:

L-frame—600 A, Thermal-Magnetic I-Line® Construction Circuit Breakers, 600 Vac

Ampere Rating	Adjustable AC Magnetic Tripb		Standard Interrupting		High Interrupting		Terminal Wire Range
	Low	High	Cat. No.	$ Price	Cat. No.	$ Price
2P, 600 Vac, 250 Vdca
125 A 150 A 175 A 200 A 225 A 250 A	625 A  750 A  875 A 1000 A 1125 A 1250 A	1250 A 1500 A 1750 A 2000 A 2250 A 2500 A	LA26125( ) LA26150( ) LA26175( ) LA26200( ) LA26225( ) LA26250( )	2702.00 2702.00 2702.00 2702.00 2702.00 2702.00	LH26125( ) LH26150( ) LH26175( ) LH26200( ) LH26225( ) LH26250( )	4508.00 4508.00 4508.00 4508.00 4508.00 4808.00	AL400LA (1) 1 AWG–600 kcmil Al or (2) 1 AWG–250 kcmil Al
300 A 350 A 400 A	1500 A 1750 A 2000 A	3000 A 3500 A 4000 A	LA26300( ) LA26350( ) LA26400( )	2702.00 2702.00 2702.00	LH26300( ) LH26350( ) LH26400( )	4508.00 4508.00 4508.00
3P, 600 Vac, 250 Vdc
125 A 150 A 175 A 200 A 225 A 250 A	625 A  750 A  875 A 1000 A 1125 A 1250 A	1250 A 1500 A 1750 A 2000 A 2250 A 2500 A	LA36125 LA36150 LA36175 LA36200 LA36225 LA36250	3296.00 3296.00 3296.00 3296.00 3296.00 3296.00	LH36125 LH36150 LH36175 LH36200 LH26225 LH36250	5430.00 5430.00 5430.00 5430.00 5430.00 5430.00	AL400LA (1) 1 AWG–600 kcmil Al or (2) 1 AWG–250 kcmil Al
300 A 350 A 400 A	1500 A 1750 A 2000 A	3000 A 3500 A 4000 A	LA36300 LA36350 LA36400	3296.00 3296.00 3296.00	LH36300 LH36350 LH36400	5430.00 5430.00 5430.00

 

 

Table 3.23:

L-frame—600 A, Current-Limiting, I-Line® Construction, Circuit Breakers, 600 Vac

Ampere Rating	Adjustable AC Magnetic Tripb		Extra-High Interrupting		Current Limiting		Terminal Wire Range
	Low	High	Cat. No.	$ Price	Cat. No.	$ Price
2P, 600 Vaca
300 A 350 A 400 A	1500 A 1750 A 2000 A	3200 A 3200 A 3200 A	LC26300( ) LC26350( ) LC26400( )	5541.00 5541.00 5541.00	LI26300( ) LI26350( ) LI26400( )	6375.00 6375.00 6375.00	AL600LI5 (2) 4/0 AWG–500 kcmil Al
450 A 500 A 600 A	2250 A 2500 A 3000 A	4200 A 4200 A 4200 A	LC26450( ) LC26500( ) LC26600( )	5794.00 5794.00 5794.00	LI26450( ) LI26500( ) LI26600( )	9299.00 9299.00 9299.00
3P, 600 Vac
300 A 350 A 400 A	1500 A 1750 A 2000 A	3200 A 3200 A 3200 A	LC36300 LC36350 LC36400	6156.00 6156.00 6156.00	LI36300 LI36350 LI36400	7115.00 7115.00 7115.00	AL600LI5 (2) 4/0 AWG–500 kcmil Al
450 A 500 A 600 A	2250 A 2500 A 3000 A	4200 A 4200 A 4200 A	LC36450 LC36500 LC36600	6438.00 6438.00 6438.00	LI36450 LI36500 LI36600	10332.00 10332.00 10332.00

 

 

a	2P and 3P circuit breaker catalog numbers are completed by adding the required phase connection letters as a suffix. See Phase Option Table.

b	UL magnetic trip setting tolerances are ±25% for low and ±20% for high from nominal value.

 

 

Table 3.24:

Interrupting Ratings

Voltage	LA	LH	LC	LI
240 Vac	42 kA	65 kA	100 kA	200 kA
480 Vac	30 kA	35 kA	65 kA	200 kA
600 Vac	22 kA	25 kA	35 kA	100 kA

 

Table 3.25:

Phase Options

Phase Option Letter	2P	3P
AB AC BC	LA26400AB LA26400AC LA26400BC
ABC CBA		LA36400 LA36400CBA

Enclosures: see Digest Section 7

 

DE2	Discount Schedule

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Related Topics

Accessories  Page 3-24—3-26

OptionalLugs Page 3-27—3-28

Dimensions Page 3-36