参数资料
型号: YJ4A
元件分类: 功率/信号继电器
英文描述: POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.07A (COIL), 28VDC (COIL), 1960mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT
文件页数: 14/16页
文件大小: 3319K
代理商: YJ4A
3. Calculation of coil temperature rise when R initial and R final are known:
Delta T = (234.5 + T1) (R2/R1 - 1)
Delta T = Temperature rise (°C)
T1 = Initial temperature (°C)
R1 = Initial resistance (Ohms)
R2 = Final resistance (Ohms)
R2 = K2R1
Temperature can also be found by making the R2/R1 ratio = the
coefficient of correction graph in Fig. 2, and then finding the corresponding temperature.
TEMPERATURE CORRECTION CHART FOR RESISTANCE
Fig. 2
EXAMPLE:
Catalog indicates coil resistance of 290 ohm at 25°C. What is the value at 125°C?
From the chart: 290 x 1.39 = 403.31 Ohms.
Date of issue: 6/00
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Page 2 of 2
相关PDF资料
PDF描述
YJ4B POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.12A (COIL), 12VDC (COIL), 1440mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT
YJ4C POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.24A (COIL), 6VDC (COIL), 1440mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT
YJ4M POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.038A (COIL), 48VDC (COIL), 1824mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT
YJ4N POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.07A (COIL), 28VDC (COIL), 1960mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT
YJ4R POWER/SIGNAL RELAY, 4PDT, MOMENTARY, 0.12A (COIL), 12VDC (COIL), 1440mW (COIL), 5A (CONTACT), 28VDC (CONTACT), SOCKET MOUNT
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