AC Coil Operation

[faulkma]

Just need some advice:

Have a customer who wants to operate a Coil in an extreme input voltage range (13 VAC to 190 VAC ). The design must have no DC or caps in it. Any ideas, a multi-stage coil design via a relay/resistor arrangment?

 

[CJCPE]

I got the impression that this is a shunt trip coil supplied on a circuit breaker by the manufacturer of the breaker. Is that not the case? Some manufacturers have both AC and DC ratings on some shunt trip coils.

 

[faulkma]

I was told by the coil manufacturer that this coil can be either AC/DC. He suggested a dual coil configuration, with one coil that could produce enough stroke at the low end and then a coil with enough mass to handle the current at the high voltage level. Would use a relay scheme that picks up the approx. coil and resistor components.