MDB Series Bearing Sensors
4B Braime MDB832V3AI MDB Series Bearing Sensors
The MDB series is a range of bearing sensors manufactured to screw directly into a bearing housing through the existing 1/4” BSPT threaded grease zerk (can be installed in 1/8” NPT grease zerk fitting with an adapter). Each sensor is fitted with a grease zerk to allow lubrication of the bearing without the need for removal of the sensor. The sensor is fitted with a M12 connector for use with a separately supplied cable and socket assembly which can be attached connected directly to a PLC or to a hazard monitoring system, such as 4B’s T500 Hotbus Elite, Watchdog Super Elite, or T400 / T400 NTC Elite. The connections are not polarity sensitive therefore special connection requirements are eliminated. Four versions are available, a NTC thermistor model or PT100 type for continuous temperature monitoring, and PTC or Contact thermistor models with five trip points (60°C, 70°C, 80°C).
| Brand |
|---|
| | Part Number | Description | Thermistor Type | Thread | ATEX Zone |
| # | |||||
| MDB810V3AI | Continuous Temperature Monitoring | NTC | ¼” BSPT | 22 | |
| MDB819V3AI | Continuous Temperature Monitoring | PT100 | ¼” BSPT | 22 | |
| MDB812V3AI | 60°C Trip Point | PTC | ¼” BSPT | 22 | |
| MDB813V3AI | 70°C Trip Point | PTC | ¼” BSPT | 22 | |
| MDB814V3AI | 80°C Trip Point | PTC | ¼” BSPT | 22 | |
| MDB832V3AI | 60°C Trip Point | Contact | ¼” BSPT | 22 | |
| MDB833V3AI | 70°C Trip Point | Contact | ¼” BSPT | 22 | |
| MDB834V3AI | 80°C Trip Point | Contact | ¼” BSPT | 22 |



















