Directed Electronics PS-3655E-FM Especificaciones descargar pdf (Pagina 38)

DE3

CIRCUIT BREAKERS

01/15

DE3-38

Mission Critical Circuit Breakers

Selective Coordination

LA Mission Critical Circuit Breakers

The LA High Magnetic Withstand MC Circuit Breakers are designed to trip at a higher magnetic trip level (18–20 times

handle rating) than typical molded case circuit breakers (MCCBs) (which trip at 5–10 times the handle rating).

The high magnetic withstand value of these LA circuit breakers allow the downstream branch circuit breaker to clear

the fault.

L-Frame—400 A, Thermal-Magnetic, High Magnetic Withstand Circuit Breakers For Mission Critical Loads

Ampere

Rating

AC Magnetic Level

Factory Set

Standard Interrupting High Interrupting Terminal

Hold T rip Cat. No. Cat. No. Cat. No. Wire Range

LA/LH MC Circuit Breaker, 3P, 480 Vac

200 A 3400 A 4000 A LAL34200MC LHL34200MC

AL250LAMC

(1) 250–350 kcmil Al

(1) 3/0 AWG–350 kcmil Cu

225 A 3825 A 4500 A LAL34225MC LHL34225MC

250 A 4250 A 5000 A LAL34250MC LHL34250MC

400 A 6000 A 7200 A LAL34400MC LHL34400MC AL400LA

(1) 1 AWG–600 kcmil Al or

(2) 1 AWG–250 kcmil Al

L-Frame Interrupting Table

LAL LHL

240 Vac 42 kA 65 kA

480 Vac 30 kA 35 kA

Dimensions......................................... P

ageDE3-54

Enclosures ......................................... P

ageDE3-56

DE3_p038.fm Page 38 Saturday, January 10, 2015 2:31 AM

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 64 65

Sin comentarios

Directed Electronics PS-3655E-FM Especificaciones Pagina 38