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> Electronic trip devices for circuit breakers have ludicrous list prices The last one I bought was a GFCI trip unit for a 1000A 480v Siemens breaker and it wa
by quickthrowman 3y ago
> Electronic trip devices for circuit breakers have ludicrous list prices
The last one I bought was a GFCI trip unit for a 1000A 480v Siemens breaker and it was around $6000, and that doesn’t include the cost of the circuit breaker.
- amluto 3y agoThat's pretty impressively expensive, especially given that the innards should not have any particular dependence on the rated current. (I suppose the GFCI sensing circuit needs to tolerate an increased amount of induced current as the available fault current goes up.)