Circuit breakers PR 60
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1 Circuit breakers PR series are mechanical switching devices able to switch, conduct and switch-off the current under normal conditions and able to switch, conduct and automatically switch-off the current under abnormal circuit conditions such as short circuit. They are used to protect house installations and industrial electric distributions and devices against overcurrents. They are designed to operate by untrained persons and they are maintenance-free. Handles of circuit breakers characteristic B, C, D are coloured like the rated currents of designation of the threaded fuse cartridges: 0,5-4 A - brown, 6-8 A - red, 16 A - gray, 20 A blue, 25 A - yellow, 32 and 35 A - violet, 40 A - black, 50 A - white, 63 A - orange, M characteristic circuit breakers and DC circuit breakers have black handles There is optical state indicator on the front side of the circuit breaker indicating operation state of the device (green target visible = closed contacts, red target visible = opened contacts). The state indicator is directly connected to the device contact system and it does not depend on the handle position (circuit breaker also can switch-off when the handle is sealed - it is corresponding with safe switch-off conditions) MCBs are commonly delivered with identification label of grey colour RAL 7035, placed on the front side above the operating handle intended for direct description. There is a possibility to order following identification labels: - of grey colour with text (lights, sockets, boilers, heating, main MCB, etc.) - of blue colour - transparent, under which there is a possibility to put paper labels with dimensions 4,3 x 9,5 mm Simple assembly: - lower interlock with spring for fastening to the strip 35 x 7,5 in accordance with EN it allows also to take out circuit breaker from the line of devices together connected by lower busbar strip without interrupting of adjacent current circuits. - upper releasing interlock - it allows to take out circuit breaker from the line of devices connected together by upper busbar strip with two clamps for mounting on panel fixed with screws M5. Sealable in ON and OFF position. There is a possibility to use throughout covers for both terminals (the modular width 17,5 mm) which can be sealed by sealable blinder. Connection: - conductors 1,5 25 mm 2 - busbar strip top and low terminal allows connecting of pin and fork busbar strip. - simultaneous connection of conductors and busbars Method of connection: for AC MCBs optional, that means that input and output terminals can be changed., for DC MCBs, the polarity of terminals has to be observed. Upper sliding latch makes it possible to withdraw a miniature circuit breaker from a row of devices interconnected on the top by a busbar without interruption of adjacent current circuits. Combined terminal with a secured screw on both sides of the miniature circuit breaker makes it possible to connect the busbar and conductor. The busbar and conductor can be connected by a single screw. Control lever colour unambiguously indicates the rated of the device (the control lever colours are in of the device (the control lever colours are in accordance with the colours of the fuses with screw base) Position indicator indicates optically the operating status of the device. It is directly connected with the contact system of the device and is independent on the control lever position (the device trips and indicates operating status even at the control lever locking. So it meets the requirement for safe disconnection. Indicator colour Device status red ON green OFF Lower sliding latch enables mounting on the rail DIN EN , width 35 mm. In the fixed withdrawn position it facilitates the side shift on the instrument board. A 1
2 Technical data Standards STN EN , STN EN Number of poles 1, 1+N, 2, 3, 3+N, 4 Tripping characteristics B, C, D according to EN M - podľa STN EN Rated currents A 0,2 up to 63 Rated voltage U n V 230; 230/400; 400 Rated DC voltage U n V max. 40V DC - 1 pole - for t = 15ms Rated frequency f Hz 50, 60 Short circuit breaking capacity ka 10 Selection category 3 Electrical endurance switching cycles Mechanical endurance switching cycles Connecting wires mm 2 1,5 25 for Cu conductors 2,5 25 for Al conductors Mounting on DIN rail 35x7,5 EN on panel Degree of protection IP 20 IP 40 from the front panel Ambient temperature C -25 to +55 Working positions optional Resistance against vibrations 3g (from 8 to 50 Hz) Approved ESS, ESČ, VDE Accesories auxiliary and signal contacts - PKJ, 2PKJ,PKJ+SKJ shunt trip - VC covers - KSP1, KSP3 indications labels - ŠN lockable operating means - UP1 sealing blind - PZ mounting brackets - PL, PPL, PP Dimensional drawing of PR ,5 35 PR 61 PR 62 PR 63 PR 64 52,5 70 6, A 2
3 Characteristics B Characteristics C Characteristics D Rated current, A Type number Ordering designation Type number Ordering designation Type number Ordering designation 0,5 PR 61-B 0, PR 61-C 0, PR 61-D 0, PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D PR 61-B PR 61-C PR 61-D ,5 PR 62-B 0, PR 62-C 0, PR 62-D 0, PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62 -D PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62-D PR 62-B PR 62-C PR 62-D ,5 PR 63-B 0, PR 63-C 0, PR 63-D 0, PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63 -D PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63-D PR 63-B PR 63-C PR 63-D ,5 PR 64-B 0, PR 64-C 0, PR 64-D 0, PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D PR 64-B PR 64-C PR 64-D Scheme Scheme Scheme Scheme Picture 1 - pole Picture 2 - pole Picture 3 - pole Picture 4 - pole A 3
4 A 4 Scheme Scheme Scheme Picture 1 - pole Picture 2 - pole Picture 3 - pole Characteristics M Rated current, A Type number Ordering designation 0,2 PR 61-M 0, ,3 PR 61-M 0, ,4 PR 61-M 0, ,6 PR 61-M 0, ,8 PR 61-M 0, ,2 PR 61-M 1, PR 61-M PR 61-M ,2 PR 61-M 4, PR 61-M PR 61-M PR 61-M PR 61-M PR 61-M PR 61-M PR 61-M PR 61-M PR 61-M PR 61-M PR 61-M PR 61-M ,2 PR 62-M 0, ,3 PR 62-M 0, ,4 PR 62-M 0, ,6 PR 62-M 0, ,8 PR 62-M 0, ,2 PR 62-M 1, PR 62-M PR 62-M ,2 PR 62-M 4, PR 62-M PR 62-M PR 62-M PR 62-M PR 62-M PR 62-M PR 62-M PR 62-M PR 62-M PR 62-M PR 62-M PR 62-M ,2 PR 63-M 0, ,3 PR 63-M 0, ,4 PR 63-M 0, ,6 PR 63-M 0, ,8 PR 63-M 0, ,2 PR 63-M 1, PR 63-M PR 63-M ,2 PR 63-M 4, PR 63-M PR 63-M PR 63-M PR 63-M PR 63-M PR 63-M PR 63-M PR 63-M PR 63-M PR 63-M PR 63-M PR 63-M
5 Internal impedances, power losses, loop impedances and rated currents corrections off the PR60 circuit-breakers. R. curr. Internal impedance Power losses Maximum impedance of fault loop Rated currents correction at the ambient air temperature from -20 C to +60 C. (A) Z (mω) Z (mω) P (W) P (W) Z (Ω) I kor (A) char.b,c,d char.m char.b,c,d char.m char.b char.c char.d,m -20 C -10 C 0 C 10 C 20 C 30 C 40 C 50 C 60 C 0, ,8 230,0 127,8 71,9 0,24 0,24 0,23 0,22 0,21 0,2 0,19 0,18 0,17 0, ,8 153,3 85,2 47,9 0,36 0,35 0,34 0,33 0,32 0,3 0,28 0,26 0,25 0, ,7 115,0 63,9 35,9 0,48 0,47 0,46 0,44 0,42 0,4 0,37 0,35 0,33 0, ,7 92,0 51,1 28,8 0,61 0,59 0,57 0,55 0,53 0,5 0,47 0,44 0,42 0, ,5 76,7 42,6 24,0 0,73 0,71 0,68 0,66 0,63 0,6 0,56 0,53 0,50 0, ,0 57,5 31,9 18,0 0,97 0,94 0,91 0,88 0,84 0,8 0,74 0,70 0, ,7 46,0 25,6 14,4 1,21 1,18 1,14 1,10 1,05 1,0 0,93 0,88 0,83 1, ,9 38,3 21,3 12,0 1,45 1,42 1,37 1,32 1,26 1,2 1,12 1,06 1, ,5 2,0 23,0 12,8 7,2 2,42 2,36 2,28 2,20 2,10 2,0 1,86 1,76 1, ,9 2,1 15,3 8,5 4,8 3,63 3,54 3,42 3,30 3,15 3,0 2,79 2,64 2, ,0 11,5 6,4 3,6 4,84 4,72 4,56 4,40 4,20 4,0 3,72 3,52 3,33 4, ,1 11,0 6,1 3,4 5,1 5,0 4,8 4,6 4,4 4,2 3,9 3,7 3, ,8 2,5 7,7 4,3 2,4 7,3 7,1 6,8 6,6 6,3 6 5,6 5,3 5, ,3 2,2 5,8 3,2 1,8 9,7 9,4 9,1 8,8 8,4 8 7,4 7,0 6, ,8 23,5 1,5 2,4 4,6 2,6 1,4 12,1 11,8 11,4 11,0 10,5 10 9,3 8,8 8, ,7 2,7 3,8 2,1 1,2 14,5 14,2 13,7 13,2 12, ,2 10,6 10, ,3 1,9 3,5 2,0 1,1 15,7 15,3 14,8 14,3 13, ,1 11,5 10, ,4 2,4 3,3 1,8 1,0 16,9 16,5 16,0 15,4 14, ,0 12,3 11,7 16 7,5 1,9 2,9 1,6 0,9 19,4 18,9 18,2 17,6 16, ,9 14,1 13,3 17 8,6 2,5 2,7 1,5 0,8 20,6 20,1 19,4 18,7 17, ,8 15,0 14,2 20 6,3 2,5 2,3 1,3 0,7 24,2 23,6 22,8 22,0 21, ,6 17,6 16,7 21 7,1 3,1 2,2 1,2 0,7 25,4 24,8 23,9 23,1 22, ,5 18,5 17,5 25 4,4 4,6 2,8 2,9 1,8 1,0 0,6 30,3 29,5 28,5 27,5 26, ,3 22,0 20,8 32 3,1 3,6 3,2 3,7 1,4 0,8 0,4 38,7 37,8 36,5 35,2 33, ,8 28,2 26,7 35 3,1 3,6 3,8 4,4 1,3 0,7 0,4 42,3 41,3 39,9 38,5 36, ,6 30,8 29,2 40 2,5 3 4,0 4,8 1,2 0,6 0,4 48,4 47,2 45,6 44,0 42, ,2 35,2 33,3 50 2,2 2,4 5,5 6,0 0,9 0,5 0,3 60,5 59,0 57,0 55,0 52, ,5 44,1 41,7 63 1,6 1,8 6,4 7,1 0,7 0,4 0,2 76,2 74,3 71,8 69,3 66, ,6 55,5 52,5 Instantaneous tripping characteristics (according to EN , EN ) B - for protection of electrical circuits with equipment, which do not cause currents surges (protection of lines) C - for protection of electrical circuits with equipment, which cause currents surges (illuminaires grups, instalations with motors) D - for protection of electrical circuits with equipment, which cause high currents surges (installations comprising motors, tramsformers and inductances) M - for protection of motors in relation to current rating Instantaneous tripping characteristics test current test current thermal release electromagnetic release tripping time tripping time I1 I2 t I4 I5 t B 1, ,1s 1,45. < 1 5. < 0,1 s C 1, ,1 s 1,45. < < 0,1 s D 1, ,1 s 1,45. < < 0,1 s M 1, ,1 s 1,3. < < 0,1 s Characteristics B, C, D: For I3 = 2,55. is: for 32 A 1s < t < 60 s for > 32 A 1s < t < 120 s Characteristics M: For I3 = 7. is: for < 10 A 2s < t < 8 s for 10 A 0,3 s < t < 4 s Influence of frequency on magnetic trip: Frequency Hz Coeficient 1 1 1,45 Corresponding amper rates, at which the magnetic trip starts to work, has to be multiplied by this coeficient. A 5
6 Instantaneous tripping characteristics of circuit breakers PR A Characteristics B, C, D EN Switch off time Rated current multiple A 6
7 Instantaneous tripping characteristics of circuit breakers PR 60 < 10 A Characteristics B, C, D EN Switch off time Rated current multiple A 7
8 Instantaneous tripping characteristics of circuit breakers PR 60 > 10 A Characteristics M EN Switch off time Rated current multiple A 8
9 Instantaneous tripping characteristics of circuit breakers PR A Characteristics M EN Switch off time Rated current multiple A 9
10 Charts of leaked energy I 2 t of mcbs PR 60 With tripping characteristic B Leaked energy I 2 t [A2s] A 10 Expected current through MCB I [A]
11 Charts of leaked energy I 2 t of mcbs PR 60 With tripping characteristic C Leaked energy I 2 t [A2s] Expected current through MCB I [A] A 11
12 Charts of leaked energy I 2 t of mcbs PR 60 With tripping characteristic D Leaked energy I 2 t [A2s] Expected current through MCB I [A] A 12
13 Selictivity of miniature circuit breakers PR 60 Selectivity of miniature circuit breakers PR 60 of characteristic B with backup fuses [ka] PR 60 NH gg (A) ,5 1, ,5 0,9 2, ,5 0,8 1,3 4, ,5 0,8 1,1 2,5 3, ,5 0, , ,5 0,7 0,9 1,8 2,1 2,7 5 8,5 13 0,5 0,6 0,8 1,6 2 2,6 4, ,6 0,8 1,5 1,9 2,5 3,8 6,5 20 0,5 0,7 1,4 1,8 2,4 3,6 6,1 25 0,7 1,3 1,8 2,3 3,4 5,8 32 1,2 1,7 2,2 3,3 5,3 40 2,1 3,2 5, ,8 63 4,5 PR 60 PV gg (A) , , ,8 4,5 5,1 6, ,5 3,6 4,4 5, ,8 4,7 8, ,2 3,5 4,1 6,8 7, ,4 3,1 3,7 5,5 6, ,9 3,4 4,7 5,9 8,8 25 3,1 4,3 5,4 7, ,8 4,6 6,3 50 1,2 4, ,2 5,6 Selectivity of miniature circuit breakers PR 60 of characteristic C with backup fuses [ka] PR 60 NH gg (A) ,5 1, ,5 0,9 3, ,5 0,8 2,5 3 3, ,5 0, , ,5 0,8 0,9 1,6 2 2,7 6 8,5 10 0,7 0,8 1,5 1,9 2, ,8 1,4 1,8 2,5 4,2 6,5 16 1,3 1,7 2,4 3,8 6,1 20 1,2 1,6 2,3 3,6 5,8 25 1,5 2,2 3,4 5,3 32 2,1 3,3 5, ,1 4,8 50 4,5 63 Selectivity of miniature circuit breakers PR 60 of characteristic D with backup fuses [ka] PR 60 NH gg (A) , ,7 1, ,5 5, ,6 1 1,4 2 2,4 3,5 7, ,5 0,9 1,2 1,6 2,1 2, ,5 0,8 1 1,5 2 2,6 4, ,7 0,9 1,4 1,9 2,5 4, ,6 0,8 1,3 1,7 2,4 3,8 6,1 20 0,5 1,2 1,6 2,3 3,6 5,8 25 1,1 1,5 2,2 3,4 5,3 32 1,4 2,1 3,3 5,1 40 1,9 3,1 4,8 50 2,5 4, PR 60 PV gg (A) , , ,5 5 6, ,8 4,2 5, ,2 3,6 4,4 5, ,8 4, ,2 3,5 4, ,4 3,1 3,7 5, ,9 3,4 4, ,1 4, , , ,6 PR 60 PV gg (A) , , , , ,2 1,5 2,5 5, , , , , In case of short-circuit after the circuit breaker PR 60 with backup fuse, selectivity of particular combination is guaranteed up to the value of the short-circuit current Ik stated in the tables. A 13
14 Correction of rated currents of miniature circuit breakers PR 60 Correction of rated currents of miniature circuit breakers installed side by side (A) Valid for reference temperature 30ºC. Ballast coefficient k Poles PN 000, 1, 2, 3 gg PV 10, 14, 22 gg PR 60 I k - initial peak short-circuit current (rms value) A 14
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