Air Circuit Breaker Interruptor Abierto Disjuntor Aberto ABW - Weg
Air Circuit Breaker Interruptor Abierto Disjuntor Aberto ABW - Weg
Air Circuit Breaker Interruptor Abierto Disjuntor Aberto ABW - Weg
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open <strong>Circuit</strong> <strong>Breaker</strong><br />
electrical operation<br />
The operation of the circuit breaker by electrical command is performed by means of<br />
motorized actvation and by the closing and opening coils, accessories installed internally<br />
in the circuit breaker.<br />
Motorized activation loads the springs of the operating mechanism automatically whenever<br />
the circuit breaker is turned off, an operation that ends after approximately 5 sec. when a<br />
internal auxiliary contact identifies that the springs are completely charged. Power supply<br />
of the motor is made through the M+ and M- terminals (see connection diagram on pages<br />
40 or 54).<br />
There is also an auxiliary contact for indication of charged springs. tS+ and tS- terminals.<br />
To turn on the circuit breaker, with the springs being charged, a pulse of voltage is applied<br />
in the range of 110...220Vac/dc to the terminals of the closing coil: CC+ and CC-.<br />
To turn off the circuit breaker, apply a pulse of voltage in the range of 110...220Vac/dc to<br />
the terminals of the opening coil: S+ and S-.<br />
Both coils operate with a pulse of voltage of only 100ms, not being necessary to keep<br />
them continually energized.<br />
3 proteCtIon unItS<br />
3.1 <strong>ABW</strong>-oCr116<br />
LEDs FOR<br />
SIGNALING<br />
FAULTS<br />
NAVIGATION<br />
KEYS<br />
30 | <strong>ABW</strong> English<br />
LCD DISPLAY<br />
LED RUN<br />
RESET KEY<br />
SETTING<br />
SELECTORS
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