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 Lug Style Bearing Sensor WDB7 temperature sensor](/sites/default/files/styles/products_fixed_750x450/public/image-library/electronics/wdb7-lug-style-sensor.jpg.webp?itok=zemsoZy3)
- 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
Belt Conveyor
Bucket Elevator
Chain Conveyor
Screw Conveyor
Specifications
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