tel. 847/675-2600 fax 847/675-1505 ohmite manufacturing company 3601 howard st. skokie, illinois 60076 website: www.ohmite.com e-mail: ohmite@wwa.com 19 280 series corrib ? fixed and adjustable vitreous enamel power resistors corrib ? resistors are ideal for applications involving high currents at very low resistance valuesas low as 0.1 ohm for the 300 watt units. these large, heavy-duty resistors are designed to withstand frequent start-stop cycles characteristic of motor starting, dynamic braking and other similar applications. special order units are available to accommodate up to 1500 watts. corribs ? are manufactured with corrugated resistive wire. to accelerate cooling, the wire is securely fused to the ceramic core by the protective vitreous enamel coating to improve durability corrib resistors are hollow-core units which can be securely fastened to chassis surfaces with thru bolts and brackets. features ? ribbed construction aids in rapid cooling. ? designed for equipment requiring low resistance loads at low ohmic values and high current capacity. ? especially constructed for motor starting, dynamic braking, etc. specifications material coating: lead free vitreous enamel except for extreme low resistance 35 watt models, and very large models (1000 watts and up), which are supplied in silicone ceramic. core: tubular ceramic. terminals: tinned lug with hole. adjustable lug: supplied with adjustable 300 watt models. part no. 1974-a or 1974-b. 0.02 CCC r02 9 0.04 CCC r04 < 0.06 CCC r06 < 0.08 CCC r08 < 0.1 CCC 410 < 99 0.12 CCC r12 9 4 0.15 CCC r15 < 0.16 CCC r16 < 9 0.2 CCC r20 <4 9 0.25 CCC r25 <4 9 0.3 CCC r30 4 0.31 CCC r31 99 0.4 CCC r40 <44 0.5 CCC r50 999 4 0.6 CCC r60 < 0.63 CCC r63 44 stock part numbers for standard resistance values 0.8 CCC r80 <<4 1.0 CCC 1r0 44 9 4 1.2 CCC 1r2 9 < 1.25 CCC 1r25 < 1.6 CCC 1r6 9 4 2.0 CCC 2r0 9 4 2.5 CCC 2r5 44 3.1 CCC 3r1 99 4.0 CCC 4r0 99 5.0 CCC 5r0 4 9 44 6.3 CCC 6r3 99 8.0 CCC 8r0 99 10.0 CCC 10r 99 44 12.0 CCC 12r 99 16.0 CCC 16r 99 20.0 CCC 20r 99 100.0 CCC 100 44 *substitute "c" in prefix with "e" for adjustable versions. 9 = most popular stock values 4 = stock values < = non-stock values subject to minimum handling charge per item part no. no. of mounting slotted elongated resistors derating % 6110-8? 6126-p-8? 1 100% - 6127-p-8? 2 83% - 6128-p-8? 3 80% - 6129-p-8? 4 80% part no. for 300 watt adjustable corrib e300kr40 - e300kr63 1974-a e300k1r0 - e300k5r0 e300k8r0 - e300k20r 1974-b e300kr10 - e300kr31 e300kr80 & e300k6r3 extra adjustable lugs for 300 watt adjustable corrib resistor hardware thru bolts mounting brackets for 300 watt corrib i ncludes 2 each bracket, bolt, washers (centering, mica, lock) and nut. note: single unit mounting contains 1 each bolt and nut; 2 each all washers. prefix* wattage core length core o.d. min. ohms max. ohms c90 90 4.0" 0.563" 0.021 12 c100 100 3.5" 0.75" 0.021 11 c110 110 5.0" 0.563" 0.029 16 c135 135 6.0" 0.563" 0.028 21 c150 150 5.0" 1.0" 0.043 27 c160 160 6.0" 0.75" 0.038 26 c180 180 6.5" 0.75" 0.031 29 c190 190 6.0" 1.0" 0.056 35 c215 215 7.0" 1.0" 0.068 43 c220 220 6.0" 1.125" 0.063 39 c270 270 5.0" 1.5" 0.065 41 c375 375 10.5" 1.125" 0.130 80 c500 500 10.5" 1.625" 0.190 117 c750 750 12.0" 2.5" 0.310 198 c1000 1000 15.0" 2.5" 0.410 258 c1500 1500 20.0" 2.5" 0.560 358 other available sizes (partial list) other available sizes (partial list) other available sizes (partial list) other available sizes (partial list) other available sizes (partial list) part no. part no. part no. part no. part no. prefix suffix wattage wattage wattage wattage wattage ohmic value ohmic value ohmic value ohmic value ohmic value c35k CCC CCC CCC CCC CCC 35 35 35 35 35 c300k CCC CCC CCC CCC CCC 300 300 300 300 300 e300k CCC CCC CCC CCC CCC 300 300 300 300 300 (adjustable) (adjustable) (adjustable) (adjustable) (adjustable) c1000k CCC CCC CCC CCC CCC 1000 1000 1000 1000 1000 c1500k CCC CCC CCC CCC CCC 1500 1500 1500 1500 1500 part no. part no. part no. part no. part no. prefix suffix wattage wattage wattage wattage wattage ohmic value ohmic value ohmic value ohmic value ohmic value c35k CCC CCC CCC CCC CCC 35 35 35 35 35 c300k CCC CCC CCC CCC CCC 300 300 300 300 300 e300k CCC CCC CCC CCC CCC 300 300 300 300 300 (adjustable) (adjustable) (adjustable) (adjustable) (adjustable) c1000k CCC CCC CCC CCC CCC 1000 1000 1000 1000 1000 c1500k CCC CCC CCC CCC CCC 1500 1500 1500 1500 1500 electrical tolerance: 10% (k) power rating: based on 25c free air rating. derating: linearly from 100% @ +25c to 0% @ +400c. overload: 10 times rated wattage for 5 seconds. temperature coefficient: 400 ppm/c. ohms: dielectric withstanding voltage: 1000 vac measured from terminal to mounting bracket. to calculate max. amps: use the formula = p/r 1.125 in. 28.58 mm .500 in. .030 12.7 mm .79 diam. .196 in. +.015/-.006 4.979 mm +.381/-.153 8.5 in. 215.90 mm .25 in. 6.35 mm .75 in. 19.05 mm .032 in. .813 mm min. .75 in. 19.05 mm fixed/adjustable 300 watt* * for values over .16 w , terminal dimensions same as 35 watt at left. .563 in. 14.288 mm 2.0 in. 50.80 mm .375 in. 9.525 mm .094 in. 2.381 mm diam. .173 in. 4.394 mm .3125 in. 7.938 mm fixed 35 watt 15.88 mm .625 in.
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