Metalohm series Cold Rolled Steel Encased Wirewound Heatsinkable Radial Terminal F e at u r e s OptiOns Flameproof and inorganic Noninductive versions (Ar yton-Perr y windings) Higher power rating due to Terminal sleeves to increase dielectric strength heat sink capacity and maximize creepage distance All welded construction Variety of terminal choices Nonhygroscopic Potted or soldered wire terminals including quick connect, ring, spade terminals High surge construction Tapped models series speciFicatiOns Style Watts w/o heat sink Watts w/ heat sink* Ohmic range** 20/45M 20 45 0.05-6K 40/70M 40 70 1.0-25K HV40-70M 40 70 1.0-25K 50/100M 50 100 1.5-47.5K 60/115M 60 115 2.5-81K 85/150M 85 150 4.5-100K *Based on a 12x12x0.125 aluminum heat sink, using a thermal compound, in a 25C ambient **Standard winding ranges only listed, other values available contact Ohmite. characteristics Wattage Based on a 275C U characteristic derating curve Dielectric Strength/Terminal Availability Temperature 18 ohm: 0 90ppm/C Terminal Type 211 252, 279 276 278 277 297 298 coefficient 8 < 18 ohm: 0 50ppm/C Style Dielectric Strength <8 ohm: 0 180ppm/C 20/45M 1500 N/A N/A N/A N/A 2500V 2500V (TC for some watt/ohm combinations may be lower) 40/70M 1500 1500 2500 2500 N/A 2500V 2500V Dielectric Terminal to case, depends on terminal style (1500V HV40/70M N/A N/A N/A N/A 4250 N/A N/A strength min.) 50/100M 1500 1500 2500 2500 N/A 2500V 2500V 60/115M 1500 1500 2500 2500 N/A 2500V 2500V Creepage term. style 277: 1.2 term. style 278: 0.4 85/150M 1500 1500 2500 2500 N/A 2500V 2500V term. style 276: 0.7 term. styles 211/252/279: 0.15 Termination Stranded, available in any insulation rated 125C Wires or higher (may require term. style 297). 12 standard length for term. 297 & 298 (custom lengths available) Can be potted or pre-soldered to terminal styles 211 or 252 Quick connect (fully or partially insulated), ring or spade terminations available Steatite construction Dielectric Sleeves Style 276 meets UL/NEMA 2500V RMS for one minute requirement Available as terminal styles 276, 277, 278, 297 (continued) 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com 135Metalohm series Cold Rolled Steel Encased Wirewound Heatsinkable Radial Terminal diMensiOns (in.) term. style 277 0.250 term. style 276 (sq. collar, G3923) term. style 279 278 (oval collar, G3860) 3 2 /16 max. 0.068 1.5 max. 1.5 max. 0.005 C B term. style 252 A 0.195 5 /16 term. style 211 0.5 D 0.089 0.171 1.25 max. 1 max. 0.75 term. style 297 term. style 298 0.437 dia. wire wire 1.25 max. Style A B C D 7 7 3 20/45M 1 1 /16 1 /8 /4 9 7 3 40/70M 2 /16 3 3 /16 /4 9 7 7 HV40-70M 2 /16 3 3 /16 /8 11 1 9 3 50/100M 3 /16 4 /8 4 /16 /4 9 7 3 60/115M 5 /16 6 6 /16 /4 1 1 3 85/150M 7 /2 8 8 /2 /4 Ordering inFOrMatiOn Not all terminal types available for all Metalohm sizes RoHS Compliant Style Non-inductive Tolerance Ohms Terminal Type (optional) K= 10% 00R05 = 0.05 A = 211 E = 277 J = 5% 00R50 = 0.50 B = 252 F = 278 1R000 = 1.00 C = 279 G = 297 1K000 = 1,000 D = 276 H = 298 10K50 = 10,500 136 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com
