MP30A25

MP30 Vishay Angstrohm Power Rheostats 150 Watt FEATURES • • • • • • Diameter 4" [101.60mm] Depth behind panel 1 3/4" [44.45mm] Shaft 1/4" [6.35mm] diameter Rotation 300° ± 5° and weight 1.014 pounds (460 grams) Total ohms available in higher ranges up to 25,000 ohms Mounts on panels up to 1/4" [6.35mm] by means of a 3/8" [9.52mm], 32 bushing and hex nut • Non-turn lugs require 3/16" [4.76mm] hole, 1/2" [12.70mm] below center of shaft Model"A" shaft • U. L. Approved RESISTANCE VALUES* TOTAL OHMS MAXIMUM AMPS APPROXIMATE STEPS DIMENSIONS in inches [millimeters] 1 3/4 [44.45] 4 [101.60] Dia. 7/8 [22.22] 0.5 1.0 2.0 3.0 5.0 7.5 10.0 15.0 25.0 50.0 75.0 100.0 200.0 300.0 400.0 500.0 750.0 1000.0 2000.0 2500.0 5000.0 7500.0 10000.0 17.350 12.247 8.660 7.071 5.477 4.472 3.873 3.162 2.449 1.732 1.414 1.225 0.866 0.707 0.612 0.548 0.447 0.387 0.274 0.244 0.173 0.141 0.122 35 39 39 70 73 70 70 120 152 190 228 228 265 303 342 342 418 432 575 456 865 1000 1000 (3) .169 [4.29] Holes 2 1/2 [63.50] R 2 7/16 [61.91] 1/2 [12.70] Knob # 552 3/8 [9.52] 1/16 [1.59] 1 1/2 [38.10] 3/4 [19.05] 1/4 [6.35] 3/8 [9.52] 3/32 [2.38] 7/32 [5.56] Dial # 548 2 1/4 [57.15] DERATING Angstrohm rheostat standard wattage ratings are based on a 300°C rise in “free-air” in ambient not exceeding + 40°C (shown). For other applications, wattage ratings are available based on 340°C rise in "free-air" in ambient not exceeding + 25°C, and in other cases + 50°C. 120 % OF RATED LOAD 100 80 60 40 20 0 40 100 150 200 250 300 AMBIENT TEMP. DEG. CENTIGRADE 350 * All other intermediate resistance values are available and can be manufactured on a normal delivery cycle. MARKING ORDERING INFORMATION MP30 MODEL A BUSHING AND SHAFT CONFIGURATION A = Standard Flatted Shaft 25 VALUE — Resistance value — Amps — Date code NOTE: For Additional Features: Submit detailed drawing information when ordering “non-standard” parts. Document Number: 66105 Revision 25-Aug-00 www.vishay.com 7 Legal Disclaimer Notice Vishay Notice Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Vishay for any damages resulting from such improper use or sale. Document Number: 91000 Revision: 08-Apr-05 www.vishay.com 1