3.Na 1SDH000635R0002
Page No. operations
x 1000
750 V
No.________________________________________________________________________________________________________________
Rated uninterrupted
current
Mechanical life (*) Electrical life
lu (40
[A]
C) No.4) year 10000 ope ratio Six onths 10000 ope ratio ns
C ecking trip fth release year Six onths
8. operations
x 1000
Frequency
operations/hour
500 V
No.1 Preliminary operations
- Remove the flange (1) the release, turning the screws (2) shown the figures
- Remove the front escutcheon plate (3) removing the four screws (4)
- Remove, present, one both side guards (5) removing the front (6) and lateral (7) screws
- Remove the arcing chambers (8) removing the screws (9).
M odel 3447
A pparatus Emax DC
S cale
D oc. operations
x 1000
Frequency
operations/hour
E2B 800 30
E2B 1000-1250 30
E2B/N 1600 30
E3N 800 20
E3N 1000-1250 20
E3N/H 1600 20
E3N/H 2000 20
E3N/H 2500 20
E4S 1600 20
E4S 2000 20
E4S 2500 20
E4S/H 3200 20
E6 3200 10
E6 4000 10
E6 5000 10
(*) ith regular aintena nce
8. 8.
19/108
.2 ainte m
Maintenance operations Interval
Installation norm room Installations dusty polluted room s
G eneral spection (see par.With regular maintenance, SACE Emax circuit-breakers, either with without geared motor, can withstand the following operation without
replacement parts. operations
x 1000
1000 V
No. 8.3.2) year after rt-circu trip onths after rt-circu trip
E xternal visual and inspection
o fth pow section
O year Six onths
O perating echanism aintenance (par.3 ainte tio s
8.3
