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ESX10-TB-124DC24V-1A-E 데이터시트(PDF) 8 Page - ETAL Group |
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ESX10-TB-124DC24V-1A-E 데이터시트(HTML) 8 Page - ETAL Group |
8 / 14 page Electronic Circuit Protector ESX10-T.-DC 24 V / Installation guidelines and safety instructions www.e-t-a.de Electronic Circuit Protector ESX10-T.-DC 24 V / Installation guidelines and safety instructions 1642 8 4 disconnection typically 1.1 x I N current limitation typically 1.8 x I N I K 10000 1000 1 2 4 ...times rated current 100 10 1 0. 1 0.01 3 5 0 1.8 x I N 5 Time/Current characteristic curve (TA = 25 °C) Table 3: Reliable trip of ESX10-T l The trip time is typically 3 s in the range between 1.1 and 1.8 x IN (e.g. ESX10-TB-...-6 A) l Electronic current limitation ILimit occurs at typically 1.8 x IN which means that under all overload conditions (independent of the power supply and the resistance of the load circuit) the max. overload before disconnection will not exceed 1.8 x IN times the current rating. The individual current limitation value ILimit depends on the current rating (see table1). Trip time is between 100 ms and 3 sec (depending on overload or at short circuit). l Without this current limitation a considerably higher overload current would flow in the event of an overload or short circuit. Reliable trip of ESX10 with different cable lengths and cross sections Resistivity of copper ρ0 = 0.0178 (Ohm x mm2) / m US = DC 19.2 V (= 80 % of 24 V) voltage drop of ESX10-T and tolerance of trip point (typically 1.1 x IN = 1.05 ... 1.35 x IN) have been taken into account. ESX10-T-selected rating IN (in A) ➞ e. g. trip current Iab = 1.25 x IN (in A)) ➞ Rmax in Ohm = (US / Iab) - 0.050 ➞ 3 6 3.75 7.5 ➞ ESX10-T trips after 3 s 5.07 2.51 The ESX10-T reliably trips from 0 Ohm to max. circuitry resistance Rmax Cable cross section A in mm2 ➞ 0.14 0.25 0.34 0.5 0.75 1 1.5 cable length L in meter (= single length) cable resistance in Ohm = (R0 x 2 x L) / A 5 1.27 0.71 0.52 0.36 0.24 0.18 0.12 10 2.54 1.42 1.05 0.71 0.47 0.36 0.24 15 3.81 2.14 1.57 1.07 0.71 0.53 0.36 20 5.09 2.85 2.09 1.42 0.95 0.71 0.47 25 6.36 3.56 2.62 1.78 1.19 0.89 0.59 30 7.63 4.27 3.14 2.14 1.42 1.07 0.71 35 8.90 4.98 3.66 2.49 1.66 1.25 0.83 40 10.17 5.70 4.19 2.85 1.90 1.42 0.95 45 11.44 6.41 4.71 3.20 2.14 1.60 1.07 50 12.71 7.12 5.24 3.56 2.37 1.78 1.19 75 19.07 10.68 7.85 5.34 3.56 2.67 1.78 100 25.34 14.24 10.47 7.12 4.75 3.56 2.37 125 31.79 17.80 13.09 8.90 5.93 4.45 2.97 150 38.14 21.36 15.71 10.68 7.12 5.34 3.56 175 44.50 24.92 18.32 12.46 8.31 6.23 4.15 200 50.86 28.48 20.94 14.24 9.49 7.12 4.75 225 57.21 32.04 23.56 16.02 10.68 8.01 5.34 250 63.57 35.60 26.18 17.80 11.87 8.90 5.93 Example 1: max. length at 1.5 mm2 and 3 A ➞ 214 m Example 2: max. length at 1.5 mm2 and 6 A ➞ 106 m Example 3: mixed wiring: R1 = 40 m in 1.5 mm2 and R2 = 5 m in 0.25 mm2: (Control cabinet – sensor/actuator level) R1 = 0.95 Ohm, R2 = 0.71 Ohm Total (R1 + R2) = 1.66 Ohm |
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