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Quantity adjustment on next page Series E-28-150  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 = 6 Watts Holding force against cold rolled steel with a thickness of: 0.375” (9.5 mm): 60 Lb (27216 gr – 267 N) 0.250” (6.4 mm): 56 Lb (25402 gr – 249 N) 0.188” (4.8 mm): 52 Lb (23587 gr – 231 N) 0.125” (3.2 mm): 47 Lb (21319 gr – 209 N) I = Intermittent (50%) Duty Cycle, Maximum On-Time = 600 Seconds Approximate Input Power = 12 Watts Holding force against cold rolled steel with a thickness of: 0.375” (9.5 mm): 66 Lb (29938 gr – 294 N) 0.250” (6.4 mm): 63 Lb (28577 gr – 280 N) 0.188” (4.8 mm): 59 Lb (26762 gr – 263 N) 0.125” (3.2 mm): 55 Lb (24948 gr – 245 N) L = Long Pulse (25%) Duty Cycle, Maximum On-Time = 180 Seconds Approximate Input Power = 24 Watts Holding force against cold rolled steel with a thickness of: 0.375” (9.5 mm): 69 Lb (31298 gr – 307 N) 0.250” (6.4 mm): 66 Lb (29937 gr – 294 N) 0.188” (4.8 mm): 64 Lb (29030 gr – 285 N) 0.125” (3.2 mm): 61 Lb (27670 gr – 271 N) P = Pulse (10%) Duty Cycle, Maximum On-Time = 60 Seconds Approximate Input Power = 60 Watts Holding force against cold rolled steel with a thickness of: 0.375” (9.5 mm): 76 Lb (34474 gr – 338 N) 0.250” (6.4 mm): 73 Lb (33113 gr – 325 N) 0.188” (4.8 mm): 70 Lb (31752 gr – 311 N) 0.125” (3.2 mm): 68 Lb (30845 gr – 303 N) Tubular Electromagnet, 1.50" (38 mm) DIA X 2.81" (71 mm) L. Mounting: 10-32 threaded hole. Minimum Heat Sink: Equivalent of 6.0" x 6.0" x 0.125" (152 mm x 152 mm x 3.2 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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