Bticino Megabreak 2500, Installation Manual

Page: 85 / 136

Megabreak®
85
SWITCH DISCONNECTORS
According to IEC 60947-3 Megabreak®
Megabreak®
I 2500
Megabreak®
I 4000
Megabreak®
I 6300
Poles number 3P-4P 3P-4P 3P-4P
Rated uninterrupted current (In) [A] 1250÷2500 3200-4000 6300
Isolation voltage (Ui) [V] 1000 1000 1000
Rated impulsive voltage (Uimp) [kV] 12 12 12
Service voltage at 50÷60Hz (Ue) [V] 690 690 690
Utilization category AC23 AC23 AC23
Rated short circuit making
capacity (kA)
220V÷500Va.c. 143 220 220
600Va.c. 132 165 165
690Va.c. 121 143 143
Rated short-time withstand
current Icw (kA) t=1s
220V÷500Va.c. 65 85 100
600Va.c. 60 75 75
690Va.c. 55 65 65
Rated short-time withstand current
Icw (kA) t=3s
220V÷500Va.c. 45 65 85
600Va.c. 45 65 75
690Va.c 45 65 65
Isolation capability yes yes yes
Endurance
(cycles)
mechanical
without
maintenance
10000 10000 5000
with
maintenance
20000 20000 10000
electrical
without
maintenance
10000 10000 5000
Opening time 15 ms 15 ms 15 ms
Closing time 30 ms 30 ms 30 ms
Visualization of contacts position S S S
Visualization of charged/
discharged springs
S S S
Auxiliary contacts S*/O S*/O S*/O
Shunt trip O O O
Closing coil O O O
Undervoltage release O O O
Undervoltage release with time delay O O O
Motor operator O O O
Mechanical counter O O O
Mechanical interlock O O O
* Standard version with n° 4 NO/NC (max n° 6 optional contacts M8AGG).
S=Standard O=Optional