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PFE5KR500E Datasheet(PDF) 1 Page - Ohmite Mfg. Co. |
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PFE5KR500E Datasheet(HTML) 1 Page - Ohmite Mfg. Co. |
1 / 2 page 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 105 PFE and PFR Series Powr-Rib® Edgewound Edgewound and Round Wire Current Rating Continuous duty as listed on follow- ing page. Wattage Rating 700 to 1,000 (up to 1,600 watts on special order) Resistance Tolerance ±10% standard, ±5% available Terminals Clamps, movable along resistor wire for setting intermediate resis- tance values on Edgewound units (current must be derated in propor- tion). Temperature Coefficient ±300 ppm/°C for resistors 50 amps and more; ±500 ppm/°C for resis- tors 47 amps or less Ohmic Values See chart on following page Mounting Metal mounting bar is slotted on each end to facilitate installation. Short Term Overload 10x rated wattage for five seconds 100 Ambient Temperature, °C 60 20 0 80 40 25 50 150 350 100 0 200 250 300 Designed in both Edgewound and Round Wire formats, these rugged resistors can handle 700 to 1000 Watts of power. Specify our Edgewound design for very low resistance and high power capacity. When higher resistance with lower power capacity is required use our Round Wire design. These resistors are constructed of a heavy resistance alloy mounted on ceramic insulators and supported by a metal mounting bracket. Metal parts, except for the resistance element, are heavily plated to prevent oxidation at high operating temperatures and to prevent corrosion. The mounting bar is slotted on each end to facilitate installation. Edgewound units provide clamp-type ter- minals, permitting a reliable connection which can be moved along the resistive element to obtain intermediate values. cha R act ER i S tic S Derating Size* (No. of Insulator-Sections Long) 2 3 4 5 (std.) 6 7 8 Dimension A in. 8.875 11.875 14.875 17.875 20.875 23.875 26.875 mm (225.43) (301.63) (377.83) (454.03) (530.23) (606.43) (682.63) Dimension B in. 7.250 10.250 13.250 16.250 19.250 22.250 25.250 mm (184.15) (260.35) (336.55) (412.75) (488.95) (565.15) (641.35) Max. Amps Ohms Ohms Ohms Ohms Ohms Ohms Ohms PFE Edgewound 100 0.033 0.057 0.080 0.100 0.120 0.140 0.160 91 0.040 0.070 0.100 0.120 0.140 0.160 0.180 89 0.046 0.078 0.110 0.140 0.170 0.200 0.230 78 0.052 0.088 0.120 0.160 0.190 0.220 0.250 75 0.060 0.100 0.140 0.180 0.210 0.250 0.300 68 0.070 0.120 0.180 0.220 0.260 0.300 0.340 63 0.080 0.130 0.190 0.250 0.300 0.350 0.400 57 0.100 0.160 0.230 0.300 0.360 0.420 0.480 54 0.110 0.180 0.250 0.330 0.400 0.470 0.540 50 0.120 0.200 0.280 0.370 0.450 0.530 0.610 47 0.170 0.280 0.380 0.500 0.600 0.700 0.800 43 0.210 0.330 0.460 0.600 0.720 0.850 0.980 41 0.230 0.360 0.510 0.670 0.800 0.930 1.06 39 0.260 0.420 0.580 0.750 0.900 1.05 1.20 33 0.350 0.560 0.770 1.00 1.20 1.40 1.60 29 0.450 0.730 1.00 1.30 1.50 1.75 2.00 26 0.560 0.900 1.20 1.60 1.90 2.20 2.50 18.4 0.690 1.20 1.70 2.20 2.70 3.10 3.50 16.3 0.880 1.50 2.20 2.80 3.40 4.00 4.60 14.6 1.10 1.90 2.70 3.50 4.30 5.10 5.90 12.7 1.40 2.40 3.50 4.50 5.50 6.50 7.50 11.8 1.70 2.90 4.20 5.40 6.60 7.80 9.00 10.3 2.10 3.70 5.30 6.80 8.30 9.80 11.3 9.4 2.70 4.60 6.50 8.50 10.40 12.3 14.2 PFR Round-Wire 8.3 3.4 5.9 8.5 11.0 13.5 16.0 18.5 7.6 4.1 7.1 10.0 13.0 15.9 18.8 21.7 6.6 5.3 9.2 13.0 17.0 20.8 24.6 28.4 5.9 6.3 10.9 15.4 20.0 24.5 29.0 33.5 5.1 7.9 13.6 19.3 25.0 30.7 36.4 42.1 *Standard 5-section units are stocked; part numbers are listed on the following page. (continued) |
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