WDB7 Lug Style Bearing Sensors
Surface Temperature Sensor
WDB70V3CAI, WDB79V3CAI, WDB71V3CAI, WDB72V3CAI, WDB73V3CAI, WDB74V3CAI, WDB75V3CAI

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, or machine casing. The mounting hole is M8 which can be drilled out up to M10 diameter. The sensor can be connected to a PLC or to a hazard monitoring system, such as 4B’s T500 Hotbus Elite, Watchdog Super Elite, or T400 Elite. The connections are not polarity sensitive therefore special connections requirements are eliminated. The WDB7 series is approved for use in ATEX and IECEx Zone 20 dust hazard locations.

WDB7 temperature sensor
Product Features
  • Surface mount type bearing sensors
  • Suitable for mounting onto flat surfaces and any type of machinery, gearbox, or casing with a M8 mounting bolt or screw
  • 1/2'' NPT conduit entry
  • NTC version - continuous temperature
  • PT100 version - platinum RTD
  • PTC version - trip points from 50°C to 90°C
  • Compatible with T400 Elite, T500 Elite or Watchdog Super Elite control modules
Electronics Application

Belt Conveyor

Belt Conveyor

Bucket Elevator

Bucket Elevator

Chain Conveyor

Chain Conveyor

Screw Conveyor

Screw Conveyor
Certification

ATEX

ATEX
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ATEX Logo

UKEx

UKEx
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IECEx

IECEx
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IECExv3

CSA

CSA
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CSA logo

CE

CE
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CE Logo
Part Number Description Thermistor Type Mounting Hole ATEX Zone IECEx
#
WDB70V3CAI Continuous Temperature Monitoring NTC M8 20 20
WDB79V3CAI Continuous Temperature Monitoring PT100 M8 20 20
WDB72V3CAI 60°C Trip Point PTC M8 20 20
WDB73V3CAI 70°C Trip Point PTC M8 20 20
WDB74V3CAI 80°C Trip Point PTC M8 20 20
WDB75V3CAI 90°C Trip Point PTC M8 20 20

Note: 100°C, 110°C and 120°C Trip Point PTC sensors available on request. ATEX Zone 22; no IECEx.


TECHNICAL SPECIFICATIONS:
WDB7 Series Surface Temperature Sensor