User manual 09/2009 - Schneider Electric

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User manual 09/2009 - Schneider Electric

Using Micrologic Trip UnitsIntegrating Micrologic Trip Units on the Compact NSX Range of Circuit BreakersMicrologic 2, 5 and 6 trip units can be used on any Compact NSX circuit breaker.The table below indicates which devices can be used according to the In rating of the distribution trip unitsand the circuit breaker size:In Rating 40 100 160 250 400 630Compact NSX100 x xCompact NSX160 x x xCompact NSX250 x x x xCompact NSX400 x (1) xCompact NSX630 x (1) x x(1) Micrologic 2 onlyMicrologic 2-M and 6 E-M trip units can be used on any Compact NSX circuit breaker.The table below indicates which devices can be used according to the In rating of the motor trip units andthe circuit breaker size:In Rating 25 50 80 100 150 220 320 500Compact NSX100 x x x (1) x (2)Compact NSX160 x x x (1) x (2) xCompact NSX250 x x x (1) x (2) x xCompact NSX400xCompact NSX630 x x(1) Micrologic 6 E-M only(2) Micrologic 2 M onlyMicrologic 1.3-M trip units can be used on any Compact NSX400 and Compact NSX630 circuit breaker.The table below indicates which devices can be used according to the In rating of the motor trip units andthe circuit breaker size:In Rating 320 500Compact NSX400 xCompact NSX630 x xUpgradability of Trip UnitsOnsite swapping of trip units is simple and safe:• No connections to make• No special tools (e.g. calibrated torque wrench)• Compatibility of trip units ensured by mechanical cap• Torque limited screw ensures safe mounting (see drawing below)Mode OKThe safety of the swapping process eliminates the risk of incorrect tightening or oversights. The simplicityof the swapping process means it is easy to make the necessary adjustments as operation andmaintenance processes evolve.NOTE: When the trip unit has been mounted by this means, the trip unit can still be removed: the screwhead is accessible.LV434104 09/2009 13

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