871TM-B3N12-R3
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Overview of Allen Bradley 871TM-B3N12-R3
The Allen Bradley 871TM-B3N12-R3 is a precision metal face inductive proximity sensor designed for reliable industrial automation detection tasks. Manufactured by Rockwell Automation, this sensor features a 12mm barrel diameter and a nominal sensing distance of 3mm. It operates with a 2-wire AC/DC configuration and provides normally open output contacts. This sensor is shielded and housed in stainless steel, ensuring durability and resistance in demanding environments. The compact design with a Micro Quick Disconnect connection allows for quick installation and maintenance. It is suitable for environments requiring IP67 and IP69K protection ratings, making it a robust choice for various industrial applications.Key Features of Allen Bradley 871TM-B3N12-R3
- 12mm barrel diameter with metal face construction for consistent sensing accuracy
- 3mm nominal sensing distance suitable for close-range metal object detection
- 2-wire AC/DC operation with normally open (N.O.) output configuration
- Shielded sensor design to minimize interference and false triggers
- Stainless steel housing enhances mechanical and environmental resilience
- Micro Quick Disconnect (QD) connection for easy installation and quick replacement
- High degree of protection with IP67/IP69K rating for dust and water resistance
- Operating temperature range from -25 to +70 °C for versatile environmental use
- Voltage rating from 20 to 250V AC/DC enabling broad application compatibility
- Switching frequency up to 30 Hz for responsive sensing in automation systems
Technical Specs of 871TM-B3N12-R3
| Specification | Details |
|---|---|
| Barrel Diameter | 12 mm |
| Sensing Distance (Nominal) | 3 mm |
| Output Configuration | Normally Open (N.O.) |
| Proximity Sensor Type | 2-Wire AC/DC |
| Connection Type | Micro Quick Disconnect (AC) |
| Housing Material | Stainless Steel |
| Shielding | Shielded |
| Degree of Protection | IP67 / IP69K |
| Operating Temperature | -25 to +70 °C |
| Voltage Rating | 20 - 250V AC/DC |
| Switching Frequency | 30 Hz |
Applications / Use Case
The Allen Bradley 871TM-B3N12-R3 sensor is ideal for industrial automation systems requiring accurate metal object detection in constrained spaces. It is widely used in manufacturing for position sensing, counting, and speed measurement of metal parts on conveyor belts or assembly lines. The sensor’s robust IP67/IP69K sealed housing ensures reliable performance in harsh environments involving dust, moisture, and washdown processes. Its quick disconnect design allows for efficient replacement during preventative maintenance downtime. Typical industries benefiting from this sensor include automotive manufacturing, material handling, packaging, and food processing where precise metal detection directly improves operational safety and efficiency.Related Resources
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