conmgt
Senior Member
- Location
- 2 Phase Philly
Hello,
I need to put a disconnect between a 30kVA transformer and a SqD QGA circuit breaker. The circuit breaker has a 65kA rating and is mounted in a 800A service panel fed directly from a dedicated utility transformer.
I'm looking at non fusible disconnects and SqD states:
"Above 10 kA, When applied on systems with greater than 10 kA short circuit current available, the UL Listed short circuit current rating for SqD non fusible switches is based upon the switch being used in conjunction with fuses or SqD circuit breakers or Mag Gaurd motor circuit protectors."
Does that mean that the SqD breaker in the service panel is providing the short circuit rating for the disconnect?
I need to put a disconnect between a 30kVA transformer and a SqD QGA circuit breaker. The circuit breaker has a 65kA rating and is mounted in a 800A service panel fed directly from a dedicated utility transformer.
I'm looking at non fusible disconnects and SqD states:
"Above 10 kA, When applied on systems with greater than 10 kA short circuit current available, the UL Listed short circuit current rating for SqD non fusible switches is based upon the switch being used in conjunction with fuses or SqD circuit breakers or Mag Gaurd motor circuit protectors."
Does that mean that the SqD breaker in the service panel is providing the short circuit rating for the disconnect?