  ® Corrib resistors are ideal for S P E C I F I C A T I O N S applications involving high cur- Material 280 Series rents at very low resistance Coating: Lead free vitreous values—as low as 0.1Ω for enamel except for extreme low ® Corrib Fixed and Adjustable the 300 Watt units. These resistance 35 watt models, and Fixed large, heavy-duty resistors are very large models (1000 watts Vitreous Enamel Power Resistors 35 watt designed to withstand frequent and up), which are supplied in start-stop cycles characteristic Silicone Ceramic. 0.375 in. 0.094 in. of motor starting, dynamic Core: Tubular Ceramic. Diam. 9.525 mm 2.381 mm braking and other similar appli- 0.173 in. Terminals: Tinned lug with hole. 4.394 mm cations. Special order units Adjustable Lug: Supplied with are available to accommodate adjustable 300 watt models. Part 0.563 in. up to 1500 watts. No. 1974-A or 1974-B. 0.625 in. 14.288 mm 15.88 mm ® Electrical Corribs are manufactured 2.0 in. Tolerance: ±10% (K) with corrugated resistive wire. 0.3125 in. 50.80 mm Power rating: Based on 25°C free 7.938 mm To accelerate cooling, the wire air rating. Fixed/Adjustable is securely fused to the ceram- Derating: Linearly from 300 watt* Diam. ic core by the protective vitre- 100% @ +25°C to 0% 0.196 in. +.015/-.006 0.25 in. ous enamel coating to improve 0.500 in. ±.030 0.032 in. 4.979 mm +.381/-.153 @ +400°C. 6.35 mm durability Corrib resistors are 12.7 mm ±.79 0.813 mm Overload: 10 times rated wattage min. hollow-core units which can be for 5 seconds. securely fastened to chassis Temperature coefficient: surfaces with thru bolts and 1.125 in. ±400 ppm/°C. brackets. 28.58 mm 0.75 in. Dielectric withstanding voltage: 19.05 mm 1000 VAC measured from termi- 8.5 in. F E A T U R E S 215.90 mm 0.75 in. nal to mounting bracket. • Ribbed construction aids in rapid 19.05 mm To calculate max. amps: use the cooling. * for values over 0.16Ω, terminal dimensions same as 35 watt at above. formula √P/R • Designed for equipment requiring low resistance Also available in low cost Centohm coating. Consult Factory. O R D E R I N G I N F O loads at low ohmic values RoHS Compliant and high current capacity. • Especially constructed for RESISTOR HARDWARE ��������� motor starting, dynamic Thru Bolts Mounting Brackets for 300 Watt Corrib braking, etc. Series Wattage Tolerance Ohms C = Fixed K = 10% example: • RoHS compliant product E = Adjustable 1R0 = 1Ω Includes 2 each bracket, bolt, washers (centering, mica, lock) available Jan. 2006 Add 250 = 250Ω and nut. Note: Single unit mounting contains 1 each bolt and 1K0 = 1,000Ω “E” suffix to part number to nut; 2 each all Washers. 25K = 25,000Ω specify. 25K5 = 25,500Ω Mounting Extra Adjustable Lugs for Part No. No. of Derating 300 Watt Adjustable Corrib Slotted Elongated Resistors % M A D E - T O - O R D E R P A R T S Part For 300 Watt 1 1 6110-8 /2 6126-P-8 /2 1 100% No. Adjustable Corrib 1 - 6127-P-8 /2 2 83% E300KR10 - E300KR63 ��������������� 1 1974-A E300K1R0 - E300K5R0 - 6128-P-8 /2 3 80% E300K8R0 - E300K20R Series Wattage & Terminal Type Ohms Tolerance 1 - 6129-P-8 /2 4 80% 280 = Fixed Core Code See “Resistor Example: F = 1% 1974-B E300KR10 - E300KR31 230 = Adjustable See “Core and Terminals for R0200 = 0.02Ω H = 3% E300KR80 & E300K6R3 Terminal Selection” Tubular Cores” R2000 = 0.2Ω J = 5% 2R500 = 2.5Ω K = 10% (std.) See page 42 for 10R00 = 10Ω custom core info S T A N D A R D P A R T N U M B E R S F O R S T A N D A R D R E S I S T A N C E V A L U E S Wattage Wattage Other Available Sizes (Partial List) Prefix* Wattage Core Length Core O.D. Min. Ohms Max. Ohms C90 90 4.0” 0.563” 0.021 12 Part No. Part No. C100 100 3.5” 0.75” 0.021 11 Prefix  Prefix  C110 110 5.0” 0.563” 0.029 16 Suffix Suffix C135 135 6.0” 0.563” 0.028 21 0.02 –––R02  0.8 –––R80    C150 150 5.0” 1.0” 0.043 27 0.04 –––R04  1.0 –––1R0    C160 160 6.0” 0.75” 0.038 26 0.06 –––R06  1.2 –––1R2   C180 180 6.5” 0.75” 0.031 29 0.08 –––R08  1.25 –––1R25  C190 190 6.0” 1.0” 0.056 35 0.1 –––R10    1.6 –––1R6   C215 215 7.0” 1.0” 0.068 43 0.12 –––R12   2.0 –––2R0   C220 220 6.0” 1.125” 0.063 39 0.15 –––R15  2.5 –––2R5   C270 270 5.0” 1.5” 0.065 41 0.16 –––R16   3.1 –––3R1   C375 375 10.5” 1.125” 0.130 80 0.2 –––R20    4.0 –––4R0   C500 500 10.5” 1.625” 0.190 117 0.25 –––R25    5.0 –––5R0   C750 750 12.0” 2.5” 0.310 198 0.3 –––R30  6.3 –––6R3   C1000 1000 15.0” 2.5” 0.410 258 0.31 –––R31   8.0 –––8R0   C1500 1500 20.0” 2.5” 0.560 358 0.4 –––R40    10.0 –––10R    = Most popular Standard values *Substitute “C” in prefix with 0.5 –––R50    12.0 –––12R   “E” for adjustable versions.  = Standard values 0.6 –––R60  16.0 –––16R    = Non-Standard values subject to 0.63 –––R63   20.0 –––20R   minimum handling charge per item 100.0 –––100 Ohmite Mfg. Co. 1600 Golf Rd., Suite 850, Rolling Meadows, IL 60008 • Tel. 1-866-9-OHMITE • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com Ohmite Mfg. Co. 1600 Golf Rd., Suite 850, Rolling Meadows, IL 60008 • Tel. 1-866-9-OHMITE • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com Ohmic value C35K ––– 35 C300K–––300 E300K–––300 (Adjustable) Ohmic value C35K ––– 35 C300K–––300 E300K–––300 (Adjustable)