3. Calculation of coil temperature rise when R initial and R final are known:

Delta T = Temperature rise (°C)

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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