Lee Solenoid Coil Electrical Characteristics

In a DC solenoid valve there is a magnetic coil that actuates the valve mechanism. The coil can be electrically modeled as an inductance and a resistance in series. The typical room temperature coil resistance and operating voltage determine the steady state current and power consumption, as shown in the table below.

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VALVE TYPE DESIGN PARAMETERS TIME CONSTANT (Sec) (Ω)
@ RATED VOLTAGE (vdc) POWER (mWatt) RESISTANCE (ohms) INDUCTANCE (mHenrys)
RATED VOLTAGE MAX. CONTINUOUS
LFA 24 280 780 2080 2600 0.00125
12 280 780 500 660 0.00132
5 280 780 85 90 0.00110
24 490 780 1180 1200 0.00101
12 490 780 295 310 0.00105
5 490 780 51 50 0.00098
24 780 780 738 900 0.00123
12 780 780 185 220 0.00119
5 780 780 32 30 0.00094
LHD 24 550 850 1042 665 0.00064
12 550 850 262 155 0.00059
5 550 850 46 30 0.00065
24 750 850 766 460 0.00060
12 750 850 193 130 0.00067
5 750 850 33 20 0.00061
24 850 850 675 340 0.00050
12 850 850 170 70 0.00041
5 850 850 30 12 0.00040
LFY 24 1000 1000 576
12 1000 1000 144
24 1500 1500 384
12 1500 1500 96
LFR 24 1600 1600 353 1080 N/A
12 1600 1600 90 280 N/A

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