introduction to the catalogue - Ilme SpA

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limit current curves of the insertsCK series - CKS seriesgeneralcurvesload curvesload curvesThe current carrying capacity possible in the connectors is variable. It reduces with the increase of the number of polesand the temperature of the environment in which the connector is installed and is determined by the thermalproperties of the materials used for the contacts and the insulating parts as well as by the type of conductor used.The current carrying capacity is obtained from the load curves which are constructed according to standard IEC60512-5-2 for currents circulating simultaneously in all poles.The limit current curves express current values that determine the achievement of the highest limit temperature of thematerials. The choice of the permanent load applicable on the contacts must be made within the field of operationpossible delimited by the above curves.Since the use of the connectors at the limit of the values of their characteristics is not recommended, the base curveis derated. The reduction of the load curves to 80% defines the correction curve where both the maximum contactresistance permissible and the inaccuracy of the temperature measurements are sufficiently borne in consideration.The correction curve represents the final limit current curve (load curve) as defined by standard IEC 60512-5-2.It therefore bears in consideration the difference between the various connectors, as well as errors in thetemperature measurements.All the load curves presented herebelow include the corrections.working current (A)3025201510500diagram CK 03 poles1,0 mm 2 1,5 mm 2 2,5 mm 20,5 mm 210 20 30 40 50 60 70 80 90 100 110ambient temperature (°C)diagram CK 04 polesenvironment30I (A)temperaturelimitlimit temperatureof the materialsTI n (base curve)0,8 x I nworking current (A)252015101,0 mm 2 1,5 mm 2 2,5 mm 2maximum load current (A)temperaturefield allowedload curveambient temperature (°C)working current (A)50030252015100,5 mm 210 20 30 40 50 60 70 80 90 100 110ambient temperature (°C)diagram CKS 03 poles1,5 mm 2 2,5 mm 21,0 mm 2Legend:Maximum load current (A): value for which the connector reaches the limit temperature of the material at theenvironmental temperature, intersected on the load curve.Limit temperature of the materials: value determined by the characteristics of the materials used. The sum ofthe environmental temperature and the increase of the simbolo ΔT temperature caused by the passage of thecurrent must not exceed the limit temperature of the materials.Environment temperature limit: the environmental conditions must not exceed this value. It may be know anddetermines the maximum load current, or may be obtained directly from the load curve.Base curve: set of current and temperature values obtained from laboratory tests and influenced by the connector’scharacteristics (number of poles, construction shape, thermal conductivity of the materials, etc.) and the section ofthe conductor used.Load curve (limit current curve): obtained from the base curve via the safety coefficient.ΔT (overtemperature): temperature increase produced by a permanent current circulating through all the poles ofa connector coupling; difference between the limit temperature of the materials and the environmental temperatureobtained on the limit current curve.working current (A)50010 20 30 40 50 60 70 80 90 100 110 120 130ambient temperature (°C)diagram CKS 04 poles30252015101,5 mm 2 2,5 mm 21,0 mm 250010 20 30 40 50 60 70 80 90 100 110 120 130ambient temperature (°C)28
limit current curves of the insertsCD series CD series - CT (10A) series CDD seriesCDD seriescurves curves curvesworking current (A)working current (A)working current (A)working current (A)161514121098765432110 20 30 40 50 60 70 80 90 100 1101,5 mm 2 1,5 mm 21,5 mm 2 1,5 mm 22,5 mm 2000 10 20 30 40 50 60 70 80 90 100 110 120 1300 120 1301,5 mm 2 1,5 mm 2ambient temperature (°C)ambient temperature (°C)diagram CD 15 polesdiagram CT 40 poles1610151492,5 mm 28122,5 mm 27106985740,75 mm 265341,0 mm 2232110000 10 20 30 40 50 60 70 80 90 100 110 120 13010 20 30 40 50 60 70 80 90 100 110 120 130ambient temperature (°C)ambient temperature (°C)diagram CD 25 and 50 polesdiagram CT 64 poles16101514982,5 mm 2122,5 mm 271069857460,75 mm 251,0 mm 23423211000 10 20 30 40 50 60 70 80 90 100 110 120 1300 10 20 30 40 50 60 70 80 90 100 110 120 130ambient temperature (°C)ambient temperature (°C)diagram CD 40 and 80 polesdiagram CDD 24 poles161615141412122,5 mm 2101091,0 mm 2876543diagram CD 07 and 08 poles1,5 mm 2 2,5 mm 21,0 mm 21,0 mm 2working current (A)working current (A)working current (A)working current (A)1615141210987654321864diagram CD 64 and 128 poles0,5 mm 21,5 mm 2 2,5 mm 21,0 mm 2working current (A)working current (A)working current (A)working current (A)diagram CDD 38 and 76 poles1614121086421,5 mm 21,0 mm 2 0,5 mm 22,5 mm 200 10 20 30 40 50 60 70 80 90 100 110 120 130ambient temperature (°C)16141210864200 10 20 30 40 50 60 70 80 90 100 110 120 130ambient temperature (°C)161412108642diagram CDD 42 poles1,5 mm 2 1,0 mm 20,5 mm 22,5 mm 200 10 20 30 40 50 60 70 80 90 100 110 120 130ambient temperature (°C)16141210864diagram CDD 72 and 144 poles1,5 mm 2 1,0 mm 20,5 mm 22,5 mm 2diagram CDD 108 and 216 poles1,5 mm 21,0 mm 22,5 mm 2load curves2100 10 20 30 40 50 60 70 80 90 100 110 120 130ambient temperature (°C)200 10 20 30 40 50 60 70 80 90 100 110 120 130ambient temperature (°C)20,5 mm 200 10 20 30 40 50 60 70 80 90 100 110 120 130ambient temperature (°C)29
Page 1 and 2: general indexintroduction to the ca
Page 3 and 4: general overview of the multipole c
Page 5 and 6: EnclosuresA large number of enclosu
Page 7 and 8: ToolsTo guarantee the efficiency an
Page 9 and 10: general features of multipole conne
Page 11 and 12: standardsElectric field conditionsT
Page 13 and 14: feature of inserts for multipole co
Page 19 and 20: conductor connectionscontacts conne
Page 21 and 22: enclosures versions and application
Page 23 and 24: enclosures versions and application
Page 25 and 26: enclosures and inserts combinations
Page 27: enclosures and inserts combinations
Page 31 and 32: limit current curves of the inserts
Page 33 and 34: limit current curves of the inserts
Page 35: limit current curves of the inserts

introduction to the catalogue - Ilme SpA

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