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Quantity adjustment on next page Series E-40-300  If the internal wire gauge for winding is predetermined or if the "voltage" is different from the above, enter the desired information in the above box labeled "Special Comments" and select the closest "voltage" and "duty cycle". C = Continuous (100%) Duty Cycle, Maximum On-Time = Infinite Approximate Input Power = 12 Watts Holding force against cold rolled steel with a thickness of: 0.500” (12.7 mm): 242 Lb (109.8 Kgf – 1077 N) 0.375” (9.5 mm): 222 Lb (100.7 Kgf – 988 N) 0.250” (6.4 mm): 209 Lb (94.8 Kgf – 930 N) 0.188” (4.8 mm): 195 Lb (88.5 Kgf – 868 N) I = Intermittent (50%) Duty Cycle, Maximum On-Time = 2700 Seconds Approximate Input Power = 24 Watts Holding force against cold rolled steel with a thickness of: 0.500” (12.7 mm): 273 Lb (123.8 Kgf – 1215 N) 0.375” (9.5 mm): 248 Lb (112.5 Kgf – 1104 N) 0.250” (6.4 mm): 230 Lb (104.3 Kgf – 1023 N) 0.188” (4.8 mm): 207 Lb (93.9 Kgf – 921 N) L = Long Pulse (25%) Duty Cycle, Maximum On-Time = 900 Seconds Approximate Input Power = 48 Watts Holding force against cold rolled steel with a thickness of: 0.500” (12.7 mm): 312 Lb (141.5 Kgf – 1388 N) 0.375” (9.5 mm): 284 Lb (128.8 Kgf – 1264 N) 0.250” (6.4 mm): 264 Lb (119.8 Kgf – 1175 N) 0.188” (4.8 mm): 214 Lb (97.1 Kgf – 952 N) P = Pulse (10%) Duty Cycle, Maximum On-Time = 240 Seconds Approximate Input Power = 120 Watts Holding force against cold rolled steel with a thickness of: 0.500” (12.7 mm): 334 Lb (151.5 Kgf – 1486 N) 0.375” (9.5 mm): 316 Lb (143.3 Kgf – 1406 N) 0.250” (6.4 mm): 280 Lb (127.0 Kgf – 1246 N) 0.188” (4.8 mm): 219 Lb (99.3 Kgf – 975 N) Available for voltages equal to or greater than 9 Volts DC Tubular Electromagnet, 3.00" (76 mm) DIA X 4.00" (102 mm) L. Mounting: 3/8-16 threaded hole. Minimum Heat Sink: Equivalent of 4.0" x 4.0" x 0.250" (102 mm x 102 mm x 6.4 mm) metal Plate All values are at 25ºC. Duty Cycle= on time/(on time+off time) in one cycle of operation when voltage is being cycled on and off. V = R × I P = V × I = V² /R = R × I² V = input D.C. voltage (volts) R = electromagnet resistance (ohms) I = current used by electromagnet (amperes) P = input power to electromagnet (watts) Quantity adjustment on next page 
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