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What is the difference between SD and SDE for Compact NSX?
SD (trip indication) and SDE (fault-trip indication) are the indication contacts for compact NSX, but the function for trip are different.

SD (trip indication) indicates that the circuit breaker has tripped due to:
  • an overload
  • a short-circuit
  • an earth fault (Vigi) or a ground fault (Micrologic 6)
  • operation of a voltage release
  • operation of the "push to trip" button
  • disconnection when the device is ON.
The SD contact returns to de-energised state when the circuit breaker is reset.

SDE (fault-trip indication) indicates that the circuit breaker has tripped due to:
  • an overload
  • a short-circuit
  • an earth fault (Vigi) or a ground fault (Micrologic 6).
ComPacT NSX100/160/250 circuit breakers and switch-disconnectors
photo
ComPacT NSX400/630 circuit breakers and switch-disconnectors
photo

Schneider Electric Thailand

What is the difference between SD and SDE for Compact NSX?
SD (trip indication) and SDE (fault-trip indication) are the indication contacts for compact NSX, but the function for trip are different.

SD (trip indication) indicates that the circuit breaker has tripped due to:
  • an overload
  • a short-circuit
  • an earth fault (Vigi) or a ground fault (Micrologic 6)
  • operation of a voltage release
  • operation of the "push to trip" button
  • disconnection when the device is ON.
The SD contact returns to de-energised state when the circuit breaker is reset.

 SDE (fault-trip indication) indicates that the circuit breaker has tripped due to:
  • an overload
  • a short-circuit
  • an earth fault (Vigi) or a ground fault (Micrologic 6).
ComPacT NSX100/160/250 circuit breakers and switch-disconnectors
photo
ComPacT NSX400/630 circuit breakers and switch-disconnectors
photo

 

Schneider Electric Thailand

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