Ri4Power Busbar rated currents The admissible rated operating currents Inc of the usable busbar systems have been tested with the following values, with due regard for the enclosure, the installation situation inside the enclosure, the protection category and cooling. Based on the extended test conditions compared with the test conditions in DIN 43 671 (busbars laid in free air), this produces rated values that deviate from standard DIN 43 671. Table 41: Busbar rated currents RiLine60 Rated AC currents of RiLine60 busbar system up to 60 Hz for uncoated copper bars (E-Cu F30) in A Ri4Power Protection category of enclosure Busbar DIN 43 671 IP 2X with IP 54 with system in free air forced ventilation1) IP 2X IP 43 forced ventilation2) IP 54 ΔT=30 °K ΔT=30 °K ΔT=70 °K ΔT=30 °K ΔT=70 °K ΔT=30 °K ΔT=70 °K ΔT=30 °K ΔT=70 °K ΔT=30 °K ΔT=70 °K RiLine60 30 x 5 mm 379 415 650 370 580 350 550 370 580 325 510 RiLine60 30 x 10 mm 573 635 1000 575 900 550 860 575 900 510 800 RiLine60 PLS 1600 13683) 1020 1600 895 1400 830 1300 895 1400 735 1150 Table 42: Rated busbar currents Maxi-PLS Rated AC currents of Maxi-PLS busbar system up to 60 Hz for uncoated copper bars in A Ri4Power Protection category of enclosure Busbar DIN 43 6713) IP 2X with IP 54 with system in free air forced ventilation1) IP 2X IP 43 forced ventilation2) IP 54 ΔT=30 °K ΔT=30 °K ΔT=70 °K ΔT=30 °K ΔT=70 °K ΔT=30 °K ΔT=70 °K ΔT=30 °K ΔT=70 °K ΔT=30 °K ΔT=70 °K Maxi-PLS 1600 1480 1145 1800 1020 1600 925 1450 1050 1650 890 1400 Maxi-PLS 2000 1700 1590 2500 1275 2000 1180 1850 1335 2100 1145 1800 Maxi-PLS 3200 2300 2550 4000 1910 3000 1850 2900 1910 3000 1780 2800 1) For In for In > = 2000 A using fan-and-filter unit SK 3244.100. 2) For In for In > = 2000 A using fan-and-filter unit SK 3244.100 and outlet filter SK 3243.200. 3) Tested on the basis of DIN 43 671. Table 43: Rated busbar currents Flat-PLS Rated AC currents of Flat-PLS busbar systems up to 60 Hz for uncoated copper bars (E-Cu F30) in A Ri4Power Protection category of enclosure Busbar DIN 43 671 IP 2X with IP 54 with system in free air forced ventilation1) IP 2X IP 43 forced ventilation2) IP 54 ΔT=30 °K ΔT=30 °K ΔT=70 °K ΔT=30 °K ΔT=70 °K ΔT=30 °K ΔT=70 °K ΔT=30 °K ΔT=70 °K ΔT=30 °K ΔT=70 °K 2 x 40 x 10 mm 1290 1780 2640 1180 1900 1080 1720 1680 2440 1040 1640 3 x 40 x 10 mm 1770 2240 3320 1420 2320 1280 2040 1980 2960 1200 1920 4 x 40 x 10 mm 2280 2300 3340 1460 2380 1320 2100 2080 3020 1260 2000 2 x 50 x 10 mm 1510 2200 3260 1340 2140 1200 1920 1980 2920 1140 1800 3 x 50 x 10 mm 2040 2660 3900 1580 2540 1400 2240 2320 3440 1320 2100 4 x 50 x 10 mm 2600 2700 4040 1640 2660 1440 2340 2360 3500 1380 2220 2 x 60 x 10 mm 1720 2220 3340 1440 2300 1280 2060 2020 2940 1200 1920 3 x 60 x 10 mm 2300 2700 4120 1720 2440 1540 2280 2400 3520 1440 2260 4 x 60 x 10 mm 2900 2740 4220 1740 2840 1580 2540 2420 3580 1460 2360 2 x 80 x 10 mm 2110 2760 4160 1740 2840 1600 2560 2540 3720 1480 2360 3 x 80 x 10 mm 2790 3300 5060 2000 3260 1840 2960 3060 4520 1680 2700 4 x 80 x 10 mm 3450 3680 5300 2060 3440 1900 3060 3220 4880 1780 2820 2 x100 x 10 mm 2480 3240 4840 1920 3200 1800 2880 2900 4340 1660 2660 3 x100 x 10 mm 3260 3650 5400 2200 3720 1980 3240 3320 4880 1920 2980 4 x100 x 10 mm 3980 4020 5500 2320 3820 2000 3400 3380 4900 1960 3120 1) For In for In > = 2000 A using fan-and-filter unit SK 3244.100. 2) For In for In > = 2000 A using fan-and-filter unit SK 3244.100 and outlet filter SK 3243.200. In accordance with IEC/EN 61 439-1 the ambient temperature is defined as 35 °C (average), or a short-term maximum of 40 °C. If different absolute temperature requirements apply to the system under construction, this may be interpolated using the correction factor diagrams to DIN 43 671 within the admissible temperature increase (max. ΔT = 70 °K), or up to a maximum absolute busbar temperature of 105 °C (see Internet, technical details for Catalogue 33, page 153). Requirements above and beyond the cited temperatures by request only. Rittal Technical System Catalogue/Power distribution 2 - 88
Technical System Catalogue Ri4Power
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