Dnk:

IIRC, adjustable-trip breakers simply give an adjustable range around the "nameplate" rating, so you can better protect the load. Great for motors. (For example, a 100a rated breaker may have a range from 75-105 amps.) [NOT necessarily a real-life example, you get the idea.]

Inverse-time breakers are a different animal, if I understand them correctly it means the the time from start of overload condition to trip point is inversely proportional to the degree of overload. In other words, the greater the magnitude of overload, the faster the trip time.

Enquiring minds would like to know.... [Linked Image]

[This message has been edited by mxslick (edited 07-03-2005).]

[This message has been edited by mxslick (edited 07-03-2005).]

Stupid should be painful.