48049-137-05EN

Instantaneous Protection

Instantaneous Protection Switches

MicroLogic 5.0P
Trip Unit

MicroLogic 6.0P
Trip Unit

Instantaneous protection protects equipment against short circuits with no intentional time delay.

  • Instantaneous protection (Ii) (A) is standard on all trip units.

  • Instantaneous protection is based on the circuit breaker sensor rating (In).

  • Circuit breaker open command is issued as soon as threshold current is exceeded.

  • Instantaneous protection uses peak current measurement.

  • When instantaneous protection switch is set to off, the instantaneous protection is disabled.

MicroLogic Instantaneous Values

Setting Interruption Current
Ii (= In x..) 2 3 4 6 8 10 12 15 off

Ii = instantaneous

In = sensor rating

Pickup accuracy ± 10%

QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and other countries.

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