Technical details System pro M compact®

Systempro M compact ®Technical detailsDouble tampoprinting of S 200 PMCBsDouble tampoprinting of S 200 PThe breaking capacityFor the modular circuit-breakers realized according to IEC/EN 60898 standard, the breaking capacityis expressed by the Icn quantity, indicated in Ampere, contained within a rectangle on the frontside of the device.The max value of rated short-circuit capacity (Icn) considered by this standardis 25000 A.Always according to IEC/EN 60898 standard, the ratio between the service short-circuit capacity(Ics) and the rated short-circuit capacity (Icn) – K factor – shall have to be conforming to the enclosedtable.IcnK< 6000 A 1> 6000 A< 10000 A 0.75 (*)>10000 A 0.5 (**)(*) Ics minimum value: 6000 A(**) Ics minimum value: 7500 ALimiting classThe Manufacturer of the circuit-breaker has the right to declare the energy limiting class of thedevice. According to IEC/EN 60898 standard, the Manufacturer classifi es the circuit-breaker with alimiting class which ranges from 1 to 3 according to the I≤ t values let though by the circuit-breakerfor rated current up to 16 A and rated currents exceeding 16 A up to 32 A included, accordingto the table below.Limited energy classesShort-circuit 1 2 3rated capacity I 2 t max (A 2 s) I 2 t max (A 2 s) I 2 t max (A 2 s)(A) B-C Type B Type C Type B Type C Type3000 No 31000 37000 15000 180004500 limits 60000 75000 25000 300006000 are 100000 120000 35000 4200010000 specifi ed 240000 290000 70000 84000Limited energy classesShort-circuit 1 2 3rated capacity I 2 t max (A 2 s) I 2 t max (A 2 s) I 2 t max (A 2 s)(A) B-C Type B Type C Type B Type C Type3000 No 40000 50000 18000 220004500 limits 80000 100000 32000 390006000 are 130000 160000 45000 5500010000 specifi ed 310000 370000 90000 11000011For instance, a circuit-breaker with rated current 16 A, B characteristic, with short-circuit ratedcapacity equal to 6 kA belongs to class 3 if it lets through max 35000 A 2 s of specifi c energy.The limiting class value (1, 2 or 3) is indicated on the front side of the device, within a square, inaddition to the breaking capacity.As regards the miniature circuit-breakers S200P series, two different breaking capacities areindicated on the front side of the device, contained in a rectangle.The breaking capacity indicated above the operating toggle is the one of the device, according toIEC/EN 60898 standard, the breaking capacity indicated under the lever is regarding the limitingclass which, according to the standard, can be expressed only for values up to 10000 A.ABB11/59