circuit breaker curve
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Square D LoadCentre KQ For final circuits supplying fixed equipment, disconnection occurs within 5 seconds @ Vac = 230 For final circuits supplying socket outlets, disconnection occurs within 0.4 of a second ( For 3 pole circuit breakers use same details as 1 pole devices.) Circuit Breaker instantaneous trip type B ( In ) Item Catalogue Current Disconnection Time in seconds ( S ) Zs ohm @ R2 Short Circuit level (kA) Number Rating 0.005 0.6 1.5 2 3 5 7 10 20 30 40 60 100 200 500 1000 2000 10000 230 Vac 2 6 10 A Disconnection Current ( A ) 5s 0.4s Ohms I 2 t (x1000 ) 1 KQ10B103 3 15 15 15 15 15 15 12.6 10.5 8.3 7.2 6.6 6 5.3 4.5 4.1 4 3.9 3.9 15.3 15.3 3.33 4 9 11 2 KQ10B106 6 30 30 30 30 30 30 25 21 16.5 14.4 13.2 12 10.5 9 8.1 7.9 7.8 7.7 7.67 7.67 1.67 4 9 11 3 KQ10B110 10 50 50 50 50 50 50 42 35 28 24 22 20 17.5 15 13.5 13.2 13 12.9 4.60 4.60 1.00 6 17 24 4 KQ10B116 16 80 80 80 80 80 80 67 56 44 38 35 32 28 24 21.6 21.1 20.8 20.6 2.88 2.88 0.63 7 23 38 5 KQ10B120 20 100 100 100 100 100 100 84 70 55 48 44 40 35 30 27 26.4 26 25.8 2.30 2.30 0.50 7 23 38 6 KQ10B125 25 125 125 125 125 125 125 105 88 69 60 55 50 44 38 34 33 32.5 32.3 1.84 1.84 0.40 7 23 38 7 KQ10B132 32 160 160 160 160 160 160 134 112 88 77 70 64 56 48 43 42.2 41.6 41.3 1.44 1.44 0.31 10 33 55 8 KQ10B140 40 200 200 200 200 200 200 168 140 110 96 88 80 70 60 54 52.8 52 51.6 1.15 1.15 0.25 10 33 55 9 KQ10B150 50 250 250 250 250 250 250 210 175 138 120 110 100 88 75 68 66 65 64.5 0.92 0.92 0.20 13 35 70 10 KQ10B163 63 315 315 315 315 315 315 265 221 173 151 139 126 110 95 85 83 82 81 0.73 0.73 0.16 13 35 70 Multiplier 1 5 5 5 5 5 5 4.2 3.5 2.8 2.4 2.2 2.0 1.75 1.50 1.35 1.32 1.30 1.29 Circuit Breaker instantaneous trip type C ( In ) Item Catalogue Current Disconnection Time in seconds ( S ) Zs ohm @ R2 Short Circuit level (kA) Number Rating 0.005 0.6 1.5 2 3 5 7 10 20 30 40 60 100 200 500 1000 2000 10000 230 Vac 2 6 10 also DP, SP A Disconnection Current ( A ) 5s 0.4s Ohms I 2 t (x1000 ) 1 KQ10C306 6 60 60 60 49 39 30 25 21 16.5 14.4 13.2 12 10.5 9 8.1 7.9 7.8 7.7 7.67 3.83 1.67 4 9 11 2 KQ10C310 10 100 100 100 82 65 50 42 35 28 24 22 20 17.5 15 13.5 13.2 13 12.9 4.60 2.30 1.00 6 17 24 3 KQ10C316 16 160 160 160 131 104 80 67 56 44 38 35 32 28 24 21.6 21.1 20.8 20.6 2.88 1.44 0.63 7 23 38 4 KQ10C320 20 200 200 200 164 130 100 84 70 55 48 44 40 35 30 27 26.4 26 25.8 2.30 1.15 0.50 7 23 38 5 KQ10C325 25 250 250 250 205 163 125 105 88 69 60 55 50 44 38 34 33 32.5 32.3 1.84 0.92 0.40 7 23 38 6 KQ10C332 32 320 320 320 262 208 160 134 112 88 77 70 64 56 48 43 42.2 41.6 41.3 1.44 0.72 0.31 10 33 55 7 KQ10C340 40 400 400 400 328 260 200 168 140 110 96 88 80 70 60 54 52.8 52 51.6 1.15 0.58 0.25 10 33 55 8 KQ10C350 50 500 500 500 410 325 250 210 175 138 120 110 100 88 75 68 66 65 64.5 0.92 0.46 0.20 13 35 70 9 KQ10C363 63 630 630 630 517 410 315 265 221 173 151 139 126 110 95 85 83 82 81 0.73 0.37 0.16 13 35 70 Multiplier 1 10 10 10 8.2 6.5 5 4.2 3.5 2.8 2.4 2.2 2.0 1.75 1.50 1.35 1.32 1.30 1.29 Item Catalogue Current Disconnection Time in seconds ( S ) Zs ohm @ R2 Short Circuit level (kA) Number Rating 0.005 0.4 1.5 2 3 5 7 10 20 30 40 60 100 200 500 1000 2000 10000 230 Vac 2 6 15 A Disconnection Current ( A ) 5s 0.4s Ohms I 2 t (x1000 ) 10 KQ10C380 80 800 800 800 656 520 400 336 280 220 192 176 160 140 120 108 106 104 103 0.58 0.29 0.13 22 80 140 11 KQ10C3100 100 1000 1000 1000 820 650 500 420 350 275 240 220 200 175 150 135 132 130 129 0.46 0.23 0.10 35 100 180 Multiplier 1 10 10 10 8.2 6.5 5 4.2 3.5 2.8 2.4 2.2 2.0 1.75 1.50 1.35 1.32 1.30 1.29
description
circuit breaker curve
Transcript of circuit breaker curve
Square D LoadCentre KQFor final circuits supplying fixed equipment, disconnection occurs within 5 seconds @ Vac = 230
For final circuits supplying socket outlets, disconnection occurs within 0.4 of a second( For 3 pole circuit breakers use same details as 1 pole devices.)
Circuit Breaker instantaneous trip type B ( In )Item Catalogue Current Disconnection Time in seconds ( S ) Zs ohm @ R2 Short Circuit level (kA)
Number Rating 0.005 0.6 1.5 2 3 5 7 10 20 30 40 60 100 200 500 1000 2000 10000 230 Vac 2 6 10A Disconnection Current ( A ) 5s 0.4s Ohms I2t (x1000 )
1 KQ10B103 3 15 15 15 15 15 15 12.6 10.5 8.3 7.2 6.6 6 5.3 4.5 4.1 4 3.9 3.9 15.3 15.3 3.33 4 9 112 KQ10B106 6 30 30 30 30 30 30 25 21 16.5 14.4 13.2 12 10.5 9 8.1 7.9 7.8 7.7 7.67 7.67 1.67 4 9 113 KQ10B110 10 50 50 50 50 50 50 42 35 28 24 22 20 17.5 15 13.5 13.2 13 12.9 4.60 4.60 1.00 6 17 244 KQ10B116 16 80 80 80 80 80 80 67 56 44 38 35 32 28 24 21.6 21.1 20.8 20.6 2.88 2.88 0.63 7 23 385 KQ10B120 20 100 100 100 100 100 100 84 70 55 48 44 40 35 30 27 26.4 26 25.8 2.30 2.30 0.50 7 23 386 KQ10B125 25 125 125 125 125 125 125 105 88 69 60 55 50 44 38 34 33 32.5 32.3 1.84 1.84 0.40 7 23 387 KQ10B132 32 160 160 160 160 160 160 134 112 88 77 70 64 56 48 43 42.2 41.6 41.3 1.44 1.44 0.31 10 33 558 KQ10B140 40 200 200 200 200 200 200 168 140 110 96 88 80 70 60 54 52.8 52 51.6 1.15 1.15 0.25 10 33 559 KQ10B150 50 250 250 250 250 250 250 210 175 138 120 110 100 88 75 68 66 65 64.5 0.92 0.92 0.20 13 35 7010 KQ10B163 63 315 315 315 315 315 315 265 221 173 151 139 126 110 95 85 83 82 81 0.73 0.73 0.16 13 35 70
Multiplier 1 5 5 5 5 5 5 4.2 3.5 2.8 2.4 2.2 2.0 1.75 1.50 1.35 1.32 1.30 1.29
Circuit Breaker instantaneous trip type C ( In )Item Catalogue Current Disconnection Time in seconds ( S ) Zs ohm @ R2 Short Circuit level (kA)
Number Rating 0.005 0.6 1.5 2 3 5 7 10 20 30 40 60 100 200 500 1000 2000 10000 230 Vac 2 6 10also DP, SP A Disconnection Current ( A ) 5s 0.4s Ohms I2t (x1000 )
1 KQ10C306 6 60 60 60 49 39 30 25 21 16.5 14.4 13.2 12 10.5 9 8.1 7.9 7.8 7.7 7.67 3.83 1.67 4 9 11
2 KQ10C310 10 100 100 100 82 65 50 42 35 28 24 22 20 17.5 15 13.5 13.2 13 12.9 4.60 2.30 1.00 6 17 24
3 KQ10C316 16 160 160 160 131 104 80 67 56 44 38 35 32 28 24 21.6 21.1 20.8 20.6 2.88 1.44 0.63 7 23 38
4 KQ10C320 20 200 200 200 164 130 100 84 70 55 48 44 40 35 30 27 26.4 26 25.8 2.30 1.15 0.50 7 23 38
5 KQ10C325 25 250 250 250 205 163 125 105 88 69 60 55 50 44 38 34 33 32.5 32.3 1.84 0.92 0.40 7 23 38
6 KQ10C332 32 320 320 320 262 208 160 134 112 88 77 70 64 56 48 43 42.2 41.6 41.3 1.44 0.72 0.31 10 33 55
7 KQ10C340 40 400 400 400 328 260 200 168 140 110 96 88 80 70 60 54 52.8 52 51.6 1.15 0.58 0.25 10 33 55
8 KQ10C350 50 500 500 500 410 325 250 210 175 138 120 110 100 88 75 68 66 65 64.5 0.92 0.46 0.20 13 35 70
9 KQ10C363 63 630 630 630 517 410 315 265 221 173 151 139 126 110 95 85 83 82 81 0.73 0.37 0.16 13 35 70Multiplier 1 10 10 10 8.2 6.5 5 4.2 3.5 2.8 2.4 2.2 2.0 1.75 1.50 1.35 1.32 1.30 1.29
Item Catalogue Current Disconnection Time in seconds ( S ) Zs ohm @ R2 Short Circuit level (kA)Number Rating 0.005 0.4 1.5 2 3 5 7 10 20 30 40 60 100 200 500 1000 2000 10000 230 Vac 2 6 15
A Disconnection Current ( A ) 5s 0.4s Ohms I2t (x1000 )10 KQ10C380 80 800 800 800 656 520 400 336 280 220 192 176 160 140 120 108 106 104 103 0.58 0.29 0.13 22 80 14011 KQ10C3100 100 1000 1000 1000 820 650 500 420 350 275 240 220 200 175 150 135 132 130 129 0.46 0.23 0.10 35 100 180
Multiplier 1 10 10 10 8.2 6.5 5 4.2 3.5 2.8 2.4 2.2 2.0 1.75 1.50 1.35 1.32 1.30 1.29
Square D LoadCentre KQFor final circuits supplying fixed equipment, disconnection occurs within 5 secondsFor final circuits supplying socket outlets, disconnection occurs within 0.4 of a second
Circuit Breaker instantaneous trip type D ( In )Item Catalogue Current Disconnection Time in seconds ( S ) Zs ohm @ R2 Short Circuit level (kA)
Number Rating 0.005 0.6 1 2 3 5 7 10 20 30 40 60 100 200 500 1000 2000 10000 230 Vac 2 6 10also DP, SP A Disconnection Current ( A ) 5s 0.4s Ohms I2t (x1000 )
1 KQ10D306 6 84 84 84 49 39 30 25 21 16.5 14.4 13.2 12 10.5 9 8.1 7.9 7.8 7.7 7.67 2.74 1.67 4 9 112 KQ10D310 10 140 140 140 82 65 50 42 35 28 24 22 20 17.5 15 13.5 13.2 13 12.9 4.60 1.64 1.00 6 17 243 KQ10D316 16 224 224 224 131 104 80 67 56 44 38 35 32 28 24 21.6 21.1 20.8 20.6 2.88 1.03 0.63 7 23 384 KQ10D320 20 280 280 280 164 130 100 84 70 55 48 44 40 35 30 27 26.4 26 25.8 2.30 0.82 0.50 7 23 385 KQ10D325 25 350 350 350 205 163 125 105 88 69 60 55 50 44 38 34 33 32.5 32.3 1.84 0.66 0.40 7 23 386 KQ10D332 32 448 448 448 262 208 160 134 112 88 77 70 64 56 48 43 42.2 41.6 41.3 1.44 0.51 0.31 10 33 557 KQ10D340 40 560 560 560 328 260 200 168 140 110 96 88 80 70 60 54 52.8 52 51.6 1.15 0.41 0.25 10 33 558 KQ10D350 50 700 700 700 410 325 250 210 175 138 120 110 100 88 75 68 66 65 64.5 0.92 0.33 0.20 13 35 709 KQ10D363 63 882 882 882 517 410 315 265 221 173 151 139 126 110 95 85 83 82 81 0.73 0.26 0.16 13 35 70
Multiplier 1 14 14 14 8.2 6.5 5.0 4.2 3.5 2.8 2.4 2.2 2.0 1.75 1.50 1.35 1.32 1.30 1.29
RCBO instantaneous trip type C ( In ) 30 mA trip levelItem Catalogue Current Disconnection Time in seconds ( S ) Zs ohm R2 Short Circuit level (kA)
Number Rating 0.005 0.6 1 2 3 5 7 10 20 30 40 60 100 200 500 1000 2000 10000 @ 50Vac 2 6 10also DP, TP A Disconnection Current ( A ) 5s 0.4s Ohms I2t (x1000 )
1 KQE106C03 6 60 60 60 49 39 30 25 21 16.5 14.4 13.2 12 10.5 9 8.1 7.9 7.8 7.7 1667 1667 1667 4 9 112 KQE110C03 10 100 100 100 82 65 50 42 35 27.5 24 22 20 17.5 15 13.5 13.2 13 12.9 1667 1667 1667 6 17 243 KQE116C03 16 160 160 160 131 104 80 67 56 44 38 35 32 28 24 21.6 21.1 20.8 20.6 1667 1667 1667 7 23 384 KQE120C03 20 200 200 200 164 130 100 84 70 55 48 44 40 35 30 27 26.4 26 25.8 1667 1667 1667 7 23 385 KQE132C03 32 320 320 320 262 208 160 134 112 88 77 70 64 56 48 43 42.2 41.6 41.3 1667 1667 1667 7 23 386 KQE145C03 45 450 450 450 369 293 225 189 158 124 108 99 90 79 68 61 59.4 58.5 58 1667 1667 1667 10 33 55
Multiplier 1 10 10 10 8.2 6.5 5.0 4.2 3.5 2.8 2.4 2.2 2.0 1.75 1.50 1.35 1.32 1.30 1.29
RCBO instantaneous trip type C ( In ) 10 mA trip levelItem Catalogue Current Disconnection Time in seconds ( S ) Zs ohm R2 Short Circuit level (kA)
Number Rating 0.005 0.6 1 2 3 5 7 10 20 30 40 60 100 200 500 1000 2000 10000 @ 50Vac 2 6 10also DP, TP A Disconnection Current ( A ) 5s 0.4s Ohms I2t (x1000 )
1 KQE106C01 6 60 60 60 49 39 30 25 21 16.5 14.4 13.2 12 10.5 9 8.1 7.9 7.8 7.7 5000 5000 5000 4 9 112 KQE110C01 10 100 100 100 82 65 50 42 35 27.5 24 22 20 17.5 15 13.5 13.2 13 12.9 5000 5000 5000 6 17 243 KQE116C01 16 160 160 160 131 104 80 67 56 44 38 35 32 28 24 21.6 21.1 20.8 20.6 5000 5000 5000 7 23 384 KQE120C01 20 200 200 200 164 130 100 84 70 55 48 44 40 35 30 27 26.4 26 25.8 5000 5000 5000 7 23 385 KQE132C01 32 320 320 320 262 208 160 134 112 88 77 70 64 56 48 43 42.2 41.6 41.3 5000 5000 5000 7 23 386 KQE145C01 45 450 450 450 369 293 225 189 158 124 108 99 90 79 68 61 59 58.5 58 5000 5000 5000 10 33 55
Multiplier 1 10 10 10 8.2 6.5 5.0 4.2 3.5 2.8 2.4 2.2 2.0 1.75 1.50 1.35 1.32 1.30 1.29
14x = type D tripMultiples of 10x = type C triprating current 5x = type B trip( xIn )
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