Overview
The Baumer CFDK 25G1125/KS35LN4 is a precision capacitive proximity sensor engineered for industrial automation and motion control. Featuring an 8 mm nominal sensing distance and flush mounting, this sensor delivers reliable non-contact detection in space-constrained applications. The CFDK 25 series has only a 6mm installation height, making it suitable for applications where space is a limiting factor.
Key Features
- Push-pull output function with M8 flylead connector (L=200 mm)
- Supply voltage 10–30 VDC with 15 mA max. current consumption
- IP 65 rated enclosure for industrial environments
- ±20% temperature drift over operating range
- Short circuit and reverse polarity protection
- LED red output indicator
Technical Specifications
- Output circuit: Push-pull
- Output current: 100 mA max.
- Voltage drop (Vd): <3 VDC
- Operating temperature: −25 to +75 °C
- IP 65 protection
- Sensing type: Contactless (capacitive)
- Detection of non-conductive media: Yes
- Fill level detection through container: Yes
Typical Applications
The CFDK 25 can be directly mounted onto a tank to detect fill levels of liquids and screwed in place flush beneath a conveyor belt enabling detection of objects on it. Common uses include:
- Level sensing in tanks and hoppers
- Object detection on conveyor belts
- Bulk goods monitoring
- Non-conductive material detection
- Space-constrained industrial automation systems
Compatibility & Replacements
Compatible With
- Industrial PLC control systems with 10–30 VDC input
- Standard push-pull (PNP) digital inputs
- M8 x 1 connector receptacles
- Automated level-monitoring and object-detection circuits
Replaces / Drop-In Replacement For
- Other CFDK 25 series sensors with 8mm sensing distance
- Legacy Baumer capacitive proximity models with equivalent 8mm range and M8 connectivity
Works With
- M8 x 1 connector-compatible interface panels
- Push-pull (PNP) logic controllers and relay modules
- Standard DIN-rail mounted PLC analog/digital input modules
- Industrial automation software supporting discrete sensor I/O










