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WDB7 Series Surface Temperature Sensor

Replaced with ADB Lug Series

The WDB7 series is a lug style NTC thermistor or platinum RTD (PT100) type for continuous temperature monitoring. It is designed to bolt directly onto a bearing housing, motor, gearbox, machine casing or any other application where surface temperature monitoring is needed.

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	NTC Type Technical Specifications -		Literature:
	• Resistance at 77 °F: 10,000 Ohms		• Product Datasheet
	• Resistance at 140 °F: 3,043 Ohms
	• Resistance at 194 °F: 1,264 Ohms		Technical:
	• Sensing Voltage: 5 to 24 VDC		• Product Manual
	• Current Draw: 1 mA
	• Fixing Thread: 1/8" NPT		Product Dimensions:
	• Minimum Temperature: -22 °F (-30 °C)		• .dwg (AutoCAD) .pdf
	• Maximum Temperature: 220 °F (105 °C)

	PT100 RTD Type Technical Specifications -
	• Resistance at 77 °F: 109.73 Ohms
	• Resistance at 140 °F: 123.24 Ohms
	• Resistance at 194 °F: 134.70 Ohms
	• Coefficient: 3850 PPM/K (385)
	• Sensing Voltage: 5 to 24 VDC
	• Current Draw: 1 mA
	• Fixing Thread: 1/8" NPT
	• Minimum Temperature: -22 °F (-30 °C)
	• Maximum Temperature: 220 °F (105 °C)

	Approvals:
	• CSA Class II Div 1 Groups E, F & G (U.S. & Canada)



	Part Numbers and Accessories:
	• WDB70V3C ~ NTC Type
	• WDB79V3C ~ PT100 RTD Type


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	Can the bolt hole be drilled out more than 1/2"?
	It is not recommended to go beyond 1/2".