Issue:
Is the time saver diagnostic feature still available on the AF and AFGF breakers?

Product Line:
QO and HOM arc fault and dual function breakers

Resolution:
Yes, the time saver diagnostic feature is still built in to all AF and AFGF breakers. See the procedure below:
NOTE: Read all cautions and warnings in the literature and on the product.  Electrical work and troubleshooting should be done by an authorized person.

Fault Indication Procedure - Time Saver Diagnostics

1. Place circuit breaker in the O/OFF position.
2. Firmly press and continue holding the ‘TEST’ button through Step 4.
3. Move handle to I/ON position.
4. Circuit breaker should trip at one of the following times.

Trips Instantly (less than 1 second) Fault to ground; includes:

• Arcing to ground
• Shared neutral
• Grounded neutral
• Ground fault

Trips at 2.0 seconds Arc fault; includes:

• Parallel arc fault
• Series arc fault

Trips at 5.0 seconds Procedure complete; includes:

• No Fault
• Thermal overload
• Short circuit

NOTE: Once you have recorded the TSD results. Please reset fault indication by using below procedure before leaving job site:

1. Perform the fault indication procedure a total of 6 times
2. Verify by performing fault indication procedure with a trip at 5.0 seconds (procedure complete) result.

An automatic reset of fault indication will occur if the circuit breaker has been powered continuously for 27 days.

Publicado para:Schneider Electric Mexico