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PFE and PFR Series
Powr-Rib(R) Edgewound Edgewound and Round Wire
Standard: A 17.875" .063 454.02 mm B 16.250" .063 412.75 mm
Terminal 2172B (30 amps & more)
1.00" 25.400 mm 2.313" 58.750 mm
Terminal 2172G (29 amps & less)
1.688" 42.875 mm
PFE5K Edgewound
1.00" 25.400 mm
0.531" 13.494 mm
0.531" 13.494 mm
0.750" 19.050 mm
PFR5K Round wire
1.00" 25.400 mm
Standard: A 17.875" .063 454.02 mm B 16.250" .063 412.75 mm
1.00" 25.400 mm 0.531" 13.494 mm
2.063" -0/+.187 52.400 mm -0/+4.763
Terminal 2175
(standard on 8.3 amps & less)
2.625" -0/+.187 66.67 mm -0/+4.763
Terminal 2176
(optional for 90 terminal mounting)
0.531" 13.494 mm
0.750" 19.050 mm
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 terminals, permitting a reliable connection which can be moved along the resistive element to obtain intermediate values.
All values for reference only; Consult factory for details.
SPECIFICATIONS
Electrical Current Rating: Continuous duty as listed on following 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 resistance values on Edgewound units (current must be derated in proportion). Temperature Coefficient: 300 ppm/C for resistors 50 amps and more 500 ppm/C for resistors 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 Ordering Information See Part Number chart for standard resistance values when ordering.
O R D E R I N G I N F O R M AT I O N
RoHS Compliant
DERATING
100 Percent Rated Power 80 60 40 20 0 0 25 50 100 150 200 250 300 350 Ambient Temperature, C
PFE5KR100E
Style PFE = Edgewound PFR = Roundwire # of Tolerance Sections K = 10% 25 36 47 8 Ohms R100 = 0.10 1R00 = 1.0 10R0 = 10
S TA N D A R D PA RT N U M B E R S
Ohms EDGEWOUND Part # Watts Amps Ohms ROUNDWIRE Part # Watts Amps
0.1 0.12 0.14 0.16 0.18 0.22 0.25 0.3 0.33 0.37 0.5 0.6 0.67 0.75 1 1.3 1.6 2.2 2.8 3.5 4.5 5.4 6.8 8.5

PFE5KR100E PFE5KR120E PFE5KR140E PFE5KR160E PFE5KR180E PFE5KR220E PFE5KR250E PFE5KR300E PFE5KR330E PFE5KR370E PFE5KR500E PFE5KR600E PFE5KR670E PFE5KR750E PFE5K1R00E PFE5K1R30E PFE5K1R60E PFE5K2R20E PFE5K2R80E PFE5K3R50E PFE5K4R50E PFE5K5R40E PFE5K6R80E PFE5K8R50E
1000 100 994 91 1100 89 973 78 1012 75 1017 68 992 63 975 57 962 54 925 50 1105 47 1109 43 1126 41 1141 39 1089 33 1093 29 1082 26 745 18.4 744 16.3 746 14.6 726 12.7 752 11.8 721 10.3 751 9.4
11 13 17 20 25
PFR5K11R0E PFR5K13R0E PFR5K17R0E PFR5K20R0E PFR5K25R0E
757 750 740 696 650
8.3 7.6 6.6 5.9 5.1
= Standard values
= Non-standard values subject to minimum handling charge per item.
Check product availability at
www.ohmite.com
48
Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 * 1-866-9-OHMITE * Int'l 1-847-258-0300 * Fax 1-847-574-7522 * www.ohmite.com * info@ohmite.com
PFE and PFR Series
Powr-Rib(R) Edgewound Edgewound and Round Wire (continued)
P F E E D G E W O U N D " P O W R - R I B " E L E C T R I C A L I N F O R M AT I O N
Size* (No. of Insulator-Sections Long) Dimension A Dimension B in. mm in. mm 2 8.875 (225.425) 7.250 (184.150) 3 11.875 (30.163) 10.250 (31.750) 4 14.875 (377.825) 13.250 (336.550) STANDARD* 5 17.875 (454.025) 16.250 (412.75) 6 20.875 (530.225) 19.250 (488.950) 7 23.875 (606.425) 22.250 (565.150) 8 26.875 (682.625) 25.250 (641.350)
Max. Amps 100 91 89 78 75 68 63 57 54 50 47 43 41 39 33 29 26 18.4 16.3 14.6 12.7 11.8 10.3 9.4
Ohms .033 .040 .046 .052 .060 .070 .080 .100 .110 .120 .170 .210 .230 .260 .350 .450 .560 .690 .880 1.10 1.40 1.70 2.10 2.70
Ohms .057 .070 .078 .088 .100 .120 .130 .160 .180 .200 .280 .330 .360 .420 .560 .730 .900 1.20 1.50 1.90 2.40 2.90 3.70 4.60
Ohms .080 .100 .110 .120 .140 .180 .190 .230 .250 .280 .380 .460 .510 .580 .770 1.00 1.20 1.70 2.20 2.70 3.50 4.20 5.30 6.50
Ohms .100 .120 .140 .160 .180 .220 .250 .300 .330 .370 .500 .600 .670 .750 1.00 1.30 1.60 2.20 2.80 3.50 4.50 5.40 6.80 8.50
Ohms .120 .140 .170 .190 .210 .260 .300 .360 .400 .450 .600 .720 .800 .900 1.20 1.50 1.90 2.70 3.40 4.30 5.50 6.60 8.30 10.40
Ohms .140 .160 .200 .220 .250 .300 .350 .420 .470 .530 .700 .850 .930 1.05 1.40 1.75 2.20 3.10 4.00 5.10 6.50 7.80 9.80 12.3
Ohms .160 .180 .230 .250 .300 .340 .400 .480 .540 .610 .800 .980 1.06 1.20 1.60 2.00 2.50 3.50 4.60 5.90 7.50 9.00 11.3 14.2
P F R R O U N D - W I R E " P O W R - R I B " E L E C T R I C A L I N F O R M AT I O N
8.3 7.6 6.6 5.9 5.1
3.4 4.1 5.3 6.3 7.9
5.9 7.1 9.2 10.9 13.6
8.5 10.0 13.0 15.4 19.3
11.0 13.0 17.0 20.0 25.0
13.5 15.9 20.8 24.5 30.7
16.0 18.8 24.6 29.0 36.4
18.5 21.7 28.4 33.5 42.1
*Standard 5-section units are stocked; part numbers are listed on previous page.
Check product availability using the Worldwide Inventory Search at ohmite.com
Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 * 1-866-9-OHMITE * Int'l 1-847-258-0300 * Fax 1-847-574-7522 * www.ohmite.com * info@ohmite.com
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