210 Series Dividohm Vitreous Enamel Adjustable Power FeatureS Terminals suitable for soldering or bolt connection. Choose Ohmites 210 Type adjustable resistors for Adjustable lug supplied applications requiring settings at different resistance values. These wirewound resistors are equipped with High wattage applications an adjustable lug, making them ideal for adjusting All-welded construction circuits, obtaining odd resistance values and set- Rugged lead free vitreous enamel coating. ting equip ment to meet various line voltages. 210 Type resistors feature a hollow core to permit secure Flame resistant coating fastening with spring-type clips or thru bolts with Additional adjustable lugs available washers. They also offer the durability of lead free RoHS compliant product available. Add E suffix to vitreous enamel coating and all-welded construction. part number to specify Mounting brackets not included with resistors. SerieS SPeciFicatiONS Series Wattage Ohms Core Code Voltage Standard Terminal D12 12 1.0-10K D 565 57 D25 25 1.0-25K K 625 40 D50 50 1.0-100K K 1625 40 D75 75 1.0-100K K 2625 40 D100 100 1.0-100K M 2845 40 D175 175 1.0-100K P 3595 46 D225 225 1.0-100K P 4595 46 D500 500 1.5-15K S 4970 45 D1000 1000 3.0-27.7K S 8900 45 Other sizes available contact Ohmite. Also available in low cost Centohm or Silicone coating contact Ohmite. characteriSticS 10% to 90% of full value. Wattage is proportional to this adjusted Adjustability resistance value. Lead free vitreous enamel. Large models (500 watts and up) are Coating supplied in Silicone Ceramic. Also available in low-cost Centohm coating Consult factory. Tubular ceramic. Core Terminals Solder coated radial lug. RoHS solder composition is 96% Sn, Power limitations for high resis- 3.5% Ag, 0.5% Cu tance values: When resistance Adjustable Nickel plated steel. (Screwdriver type adjustable lug supplied exceeds the resistance values listed terminal standard. Other types, including silver contact units, available.) below, derate the Power Rating by 25% to improve reliability: Derating Linearly from 100% +25C to 0% +350C. Power Resistance No power Tolerance 10% (K) rating value derating neces- Power rating Based on 25C free air rating. The stated wattage rating applies sary for ratings 12W 4,500 only when the entire resistance is in the circuit. Setting the lug at higher than 25W 9,000 an intermediate point reduces the wattage rating by approximately 100W. 50W 20,000 the same proportion. Example: If the lug is set at half resistance, the wattage is reduced by approx. one-half. 75W 35,000 100W 50,000 Overload 10 times rated wattage for 5 seconds. 260 ppm/C Temperature coef- ficient Dielectric withstand- 1000 VAC: 12 to 100 watt rating. 3000 VAC: 175 and 225 watt rat- ing voltage ing (measured from terminal to mounting bracket) Max. amps To calculate, use the formula P/R. Mounting Hardware see 210 Series Dividohm Vitreous Enamel Adjustable Power dimeNSiONS (in. / mm) Series Wattage L D C Core Code* Std. Term.** D12 12 1.75 / 44.4 0.313 / 7.94 0.188 / 4.76 D 57 D25 25 2.0 / 50.8 0.562 / 14.3 0.313 / 7.94 K 40 D50 50 4.0 / 101.6 0.562 / 14.3 0.313 / 7.94 K 40 D C D75 75 6.0 / 152.4 0.562 / 14.3 0.313 / 7.94 K 40 D100 100 6.5 / 165.1 0.750 / 19.1 0.50 / 12.7 M 40 L D175 175 8.5 / 215.9 1.125 / 28.6 0.75 / 19.1 P 46 D225 225 10.5 / 266.7 1.125 / 28.6 0.75 / 19.1 P 46 D500 500 12.0 / 304.8 2.50 / 63.5 1.75 / 44.5 S 45 D1000 1000 20.0 / 508.0 2.50 / 63.5 1.75 / 44.5 S 45 *