TeSys protection components - Trinet

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General <strong>TeSys</strong> contactors Long distance remote control Residual current in the coil due to cable capacitance (continued) These graphs are for a capacitance, between conductors, of 0.2 µF/km. They make it possible to determine whether there is a risk of the contactor remaining closed due to the power drawn by the coil when sealed and the control circuit voltage, according to the length of the control cable. Cable capacitance in µF Power drawn, sealed in VA Length of control cable in m 1a 24 V 4 a 230 V 7 3-wire control 2a 48 V 5 a 400 V 8 2-wire control 3a 115 V 6 a 690 V In the zones below the straight lines for 3-wire and 2-wire control respectively, there is a risk of the contactor remaining closed. Examples What is the maximum length for the control cable of an LC1-D12 contactor, operating on 230 V, with 2-wire control? - Contactor LC1-D12, voltage 230 V, 50 Hz: power sealed 7 VA. On the left-hand graph, point A is at the intersection of the vertical line for 7 VA with the a 230 V voltage curve. On the right-hand graph, point B is at the intersection of the horizontal line with the 2-wire control curve. The maximum cable length is therefore 300 m. In the same example, with a 600 m cable, the point lies in the risk zone. A resistor must therefore be connected in parallel with the contactor coil. Value of this resistance: 1 1 R = –––––– = –––––––– = 8.3 kΩ 10 –3 .C 10 –3 .0.12 Power to be dissipated: U2 (220)2 P = ––– = ––––– = 6 W R 8300 Alternative solution: use a d.c. control supply. Calculating the cable length The maximum permitted length of control cable to avoid the effects of capacitance is calculated using the formula: S L = 455. ––––– U2.Co L: distance between the contactor and the control device in km (length of the cable), S: apparent power, sealed, in VA, U: control voltage in V, Co: cable capacitance in µF/km. Schneider Electric 24572 Ver2.00-EN.fm/
7 or See page opposite for mounting possibilities according to contactor type and rating 24525_Ver5.31-EN.fm/2 Schneider Electric
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References TeSys protection compone
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24515_Ver3.20-EN.fm/2 Schneider Ele
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Description, characteristics TeSys
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Description, characteristics TeSys
Page 9 and 10: Curves TeSys protection components
Page 11 and 12: Curves (continued) TeSys protection
Page 31 and 32: Selection guide TeSys contactors Fo
Page 33 and 34: Selection guide according to requir
Page 35 and 36: Selection TeSys contactors For util
Page 37 and 38: Selection guide TeSys contactors Fo
Page 39 and 40: Selection according to required ele
Page 41 and 42: Selection TeSys contactors For util
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Page 45 and 46: Selection TeSys contactors For ligh
Page 47 and 48: Selection (continued) TeSys contact
Page 49 and 50: Selection TeSys contactors For heat
Page 51 and 52: Selection TeSys contactors For swit
Page 53 and 54: Recommended wiring scheme, operatio
Page 55 and 56: Operation TeSys contactors For roto
Page 57 and 58: General TeSys contactors Long dista
Page 59: General TeSys contactors Long dista
Page 63 and 64: References TeSys control relays 7 M
Page 65 and 66: Characteristics TeSys control relay
Page 67 and 68: Characteristics TeSys control relay
Page 69 and 70: Dimensions, mounting TeSys motor st
Page 71 and 72: Dimensions TeSys motor starters - o
Page 73 and 74: Dimensions TeSys enclosed starters
Page 81 and 82: Dimensions Installation system Tego
Page 83 and 84: Schemes Installation system Tego Po
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Page 87 and 88: Dimensions, mounting TeSys protecti
Page 89 and 90: Dimensions, mounting (continued) Te
Page 91 and 92: Mounting TeSys protection component
Page 93 and 94: Schemes TeSys protection components
Page 99 and 100: Dimensions TeSys contactors Model d
Page 101 and 102: Mounting TeSys contactors Model d c
Page 103 and 104: Schemes TeSys contactors d range co
Page 105 and 106: Dimensions TeSys contactors Reversi
Page 107 and 108: Dimensions TeSys protection compone
Page 109 and 110: Mounting (continued) TeSys protecti
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=35 = Dimensions, mounting TeSys co
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Cross-reference table TeSys control
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Cross-reference table TeSys control
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