Breaker Accessories:
Modularity, the key design aspect of OMEGA ACBs facilitates the quick fixing & removal of several breaker mounted
accessories such as CR, SR, UVR, Auxiliary contact blocks & various indicating micro-switches. These accessories are
located on the front top-side of breaker mechanism & have specified positions.
1) Auxiliary Contact Block:
Auxiliary Contact Block contains the change-
over switch contacts in combination of 4 units of 1NO+1NC each. Auxiliary
contact block reflects the breaker ON/OFF state in control circuit.
3)
Closing Release (CR):
Closing Release remotely closes the Circuit Breaker
if the spring mechanism is already charged. Closing Releases in Omega
Air-circuit breakers come with inbuilt Electrical anti-pumping feature. Inbuilt
electrical anti-pumping feature prevents auto-reclosing of Circuit Breaker on
faults. Anti-pumping relay cancels the persistent closing signal after successful
completion of the closing operation.
24V
10A
10A
Operational voltage (Ue)
In (DC-12)
In (DC-13)
40V
8A
4A
110V
3.5A
1.2A
220V
1A
0.4A
upto 24V
10A
6A
Operational voltage (Ue)
In (AC-12) at 50/60 Hz
In (AC-15) at 50/60 Hz
110V
10A
6A
220/230V
10A
6A
400V
10A
4A
2) Shunt Release (SR):
Shunt Release when energized opens the breaker
instantaneously. Omega ACBs offer general purpose Shunt Release which can
reliably trip the Circuit Breaker through external trip command.
Power consumption
200VA for 0.5 sec
200W for 0.5 sec
Operating range
70-110% of Ue
70-110% of Ue
Operational voltage (Ue)
110, 240, 415V AC at 50/60Hz
24, 30, 48, 60, 110, 125, 220, 250V DC
Operating range
85-110% of Ue
85-110% of Ue
Power consumption
200VA for 0.5 sec
200W for 0.5 sec
Operational voltage (Ue)
110, 240, 415V AC at 50/60Hz
24, 30, 48, 60, 110, 125, 220, 250V DC
Closing
Release
Auxiliary Contact
Block
Under-voltage
Release
Controller
Under-voltage
Release
Shunt
Release
Operation
Counter
6
2 3 4 5
1
Under-voltage
Trip Indication
Common
Fault Indication
Shunt Trip
Indication
C1
C2
TCS
A1 A2
71
Accessories
Содержание OMEGA
Страница 2: ...Stabilise systems with technology ...
Страница 4: ...Change course quickly ...
Страница 6: ...Match performance with prudence ...
Страница 8: ...Adopt technological brilliance ...
Страница 10: ...Keep an eye on upkeep ...
Страница 26: ...Matrix Protection Control Units T UW M X4 5 ...
Страница 70: ...Accessories ...
Страница 84: ...Control Circuit Wiring ...
Страница 92: ...Mounting Termination ...
Страница 135: ...SP 50567 R5 ...