User manual 09/2009 - Schneider Electric

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User manual 09/2009 - Schneider Electric

Using Micrologic Trip UnitsIdentificationThe trip unit installed on the circuit breaker is identified by a combination of 4 characters on the front face:Micrologic 6.3 E-MX.Y Z -TIdentification on Micrologic electronic trip unitsProtection (X) Case (Y) Measurements (Z) Application (T)1 I 2 Compact NSX 100/ A Ammeter Distribution2 LS 0 160/250 E Energy G Generator5 LSI 3 Compact NSX 400/ AB Subscriber6 LSIG 630 M MotorZ 16 Hz 2/3ExamplesMicrologic 1.3 M I 400 or 630 A MotorMicrologic 2.2 G LS 0 100, 160 or 250 A GeneratorMicrologic 2.3 LS 0 400 or 630 A DistributionMicrologic 2.3 M LS 0 400 or 630 A MotorMicrologic 5.2 A LSI 100, 160 or 250 A Ammeter DistributionMicrologic 5.3 E LSI 400 or 630 A Energy DistributionMicrologic 6.3 E-M LSIG 400 or 630 A Energy MotorDefinition of LSIG ParametersILS 0SGInstantaneousLong timeShort time (fixed time delay)Short timeGroundIn Rating of Micrologic Trip UnitsThe In rating (in amps) of a Micrologic trip unit corresponds to the trip unit setting range maximum value.The setting range is indicated on the label on the front face of the trip unit (this label is visible on the frontface of the Compact NSX circuit breaker after the trip unit has been fitted).Example: Micrologic 5.2 A 250 trip unit:• Setting range: 100...250 A• In rating = 250 A12 LV434104 09/2009

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